Exchange Now - Marcus Nepomuceno

Script Alterar Senha ADM Local

2012-01-30T15:43:00.000-08:00

Rem =============================================================
Rem
Rem Função: Fazer alteração de senha em varios computadores a partir de um arquivo texto.
Rem Autor: Marcus Vincius
Rem
Rem =============================================================

Rem =============================================================
Rem Prepara arquivo texto para leitura de dados
Rem =============================================================
rem on error resume next

Const ForReading = 1
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objTextFile = objFSO.OpenTextFile _
("c:\scripts\computers.txt", ForReading)

Rem =============================================================
Rem Inicia troca de senha em cada maquina do arquivo .txt
Rem =============================================================

Do Until objTextFile.AtEndOfStream

strNextLine = objTextFile.Readline
arrServiceList = Split(strNextLine , ",")
strComputer = arrServiceList(0)

Set objUser = GetObject("WinNT://" & strComputer & "/Administrador, user")
objUser.SetPassword "SENHA"
objUser.SetInfo

Loop

objTextFile.close

wscript.echo "Processo Finalizado"

Windows 2008 R2 Cluster

2011-04-30T16:09:00.000-07:00

Cluster Service Windows 2008

Se você estiver atualizando um Cluster de Failover do Windows Server 2008 R2 Service Pack 1, é altamente recomendável que você aplique o hotfix KB 2531907.

Aqui está o link: http://support.microsoft.com/kb/2531907

Marcus Nepomuceno

Windows 2008 R2 SP1

2011-03-09T16:25:00.000-08:00

Service Pack 1 para Windows 2008 R2 ja esta quase chegando e muita gente não sabe quais as novidades, para estes meus amigos, segue abaixo uma lista delas.

Este documento inclui informações técnicas, procedimentos e recomendações para instalar o SP1 em um ambiente comercial ou corporativo. Embora este guia inclua algumas informações básicas do sistema operacional, partimos do pressuposto de que você já tenha um conhecimento de como trabalhar com o Windows Server 2008 R2, o Windows 7 e de como instalar atualizações.

Para obter mais informações sobre implantação, consulte os seguintes recursos:

Documentação do Microsoft Deployment Toolkit (http://go.microsoft.com/fwlink/?LinkId=108442) (a página pode estar em inglês)

System Center Configuration Manager 2007 (http://go.microsoft.com/fwlink/?LinkId=100278) (a página pode estar em inglês)

Kit de Instalação Automatizada do Windows (Windows AIK)(http://go.microsoft.com/fwlink/?LinkId=193132) (a página pode estar em inglês)

Marcus Nepomuceno

Configurando Hub Transport para envio e Recepção de email na Internet

2010-12-07T13:16:00.000-08:00

Para empresas pequenas o uso de multiplos servidores as vezes fica inviavel, por muitas questões na sua maioria financeira, com este tutorial do time do Exchange voce configura um unico servidor como Hub/Cas/Mailbox, ativa o Anti-Spam e o envio e recepção de email para internet.

Abraços

Marcus Nepomuceno

Microsoft Promoção

2010-03-28T18:02:00.000-07:00

Participem....e concorram a Premios.

Marcus Nepomuceno

Descontraindo

2010-02-25T18:07:00.000-08:00

Nova Certificação: MCTS Exchange Server 2007

2010-01-12T15:48:00.000-08:00

Agora Certificado em Exchange Server 2007.

Marcus Nepomuceno

Instalando SCMDM

2009-11-30T17:22:00.000-08:00

Pessoal aqui tem um Passo-a-Passo da instalação do System Center Mobile Device Manager.

Seguem os Links:

http://mobilitydojo.net/2008/09/22/system-center-mobile-device-manager-2008-install-guide-no-gateway-part-1/
http://mobilitydojo.net/2008/09/23/system-center-mobile-device-manager-2008-install-guide-no-gateway-part-2/
http://mobilitydojo.net/2008/09/24/system-center-mobile-device-manager-2008-install-guide-no-gateway-part-3/

Gateway Server:
http://mobilitydojo.net/2008/10/01/system-center-mobile-device-manager-2008-installing-a-gateway-server/

Exchange Server 2007 SP2

2009-09-16T20:40:00.000-07:00

Novidades do Exchange Server 2007 SP2
O Microsoft Exchange Server 2007 Service Pack 2 (SP2) apresenta muitos recursos novos para cada função de servidor. Este tópico discute os recursos novos e aprimorados que são adicionados quando você instala o Exchange 2007 SP1.
Para baixar o Exchange 2007 SP2, consulte Exchange Server 2007 Downloads (página em inglês).
Implantando o Exchange Server 2010
Você pode implantar o Exchange Server 2010 na sua organização assim que todos os servidores de Acesso para Cliente na organização tiverem sido atualizados para o Exchange Server 2007 Service Pack 2 (SP2). Além disso, qualquer Exchange 2007 Server, independentemente da função de servidor, no site do Active Directory que está em transição, deve ser atualizado para Exchange 2007 SP2.
Funcionalidade de backup do Exchange
O Exchange 2007 Service Pack 2 inclui um plug-in VSS para que o Backup do Windows Server seja compatível com backups do Exchange. Assim que o SP2 for instalado, você pode usar o Backup do Windows Server para fazer backup e restauração de seus bancos de dados do Exchange 2007 SP2. O novo plug-in é fornecido na forma de um único executável denominado WSBExchange.exe. Esse plug-in é automaticamente instalado pelo SP2 em todos os servidores de Caixa de Correio do Exchange 2007. O plug-in permite que o Backup do Windows Server faça backups VSS com suporte ao Exchange. Para obter mais informações sobre esse recurso e como usá-lo, consulte Usando o backup do Windows Server para operações de backup e restauração de dados do Exchange.
Auditoria avançada
Novos eventos de auditoria do Exchange e o repositório de log de auditório permitem que os administradores do Exchange auditem mais facilmente as atividades ocorrendo em seus servidores Exchange. Ele permite o equilíbrio ideal de granularidade, desempenho e acesso fácil a eventos auditados por meio de um repositório dedicado de log de auditoria. Isso simplifica o processo de auditoria e facilita a revisão de eventos auditados ao reunir os eventos em um local dedicado. Para obter mais informações sobre os novos recursos de auditoria disponíveis com o SP2, consulte Noções básicas sobre Auditoria de Acesso à Caixa de Correio com o Exchange Server 2007 Service Pack 2.
Validação de esquema dinâmico do Active Directory
O recurso de validação e atualização de esquema dinâmico do AD permite que futuras atualizações de esquemas sejam implantadas dinamicamente, bem como impedindo pró-ativamente conflitos sempre que uma nova propriedade for adicionada ao esquema do AD. Assim que o recurso for implantado, ele facilitará o gerenciamento de futuras atualizações de esquema e impedirá problemas de suporte ao adicionar propriedades não existentes no esquema do AD. Para obter mais informações sobre a validação de esquema dinâmico do Active Directory, consulte Atualizações e validação de esquema dinâmico no Exchange 2007 SP2.
Gerenciamento de cota de pasta pública
O Exchange 2007 Service Pack 2 fornece uma forma mais eficiente para o gerenciamento de cotas de pasta pública ao melhorar os atuais cmdlets e remover a dependência de Public Folder Distributed Authoring and Versioning Administration para a execução de tarefas de gerenciamento. Para obter mais informações sobre os novos recursos de gerenciamento de cota de pasta pública, consulte a documentação do cmdlet Set-PublicFolder.
Configurações organizacionais centralizadas
Há vários novos parâmetros de cmdlet adicionados que permitem o gerenciamento centralizado de muitas das configurações de organização do Exchange.

Raid

2009-08-19T11:16:00.000-07:00

O que é RAID?

RAID (Redundant Array of Inexpensive Disk) algo como Arranjo redundante de discos.

Esta tecnologia começou a ser usada em servidores, porque pode proporcionar uma maior segurança aos arquivos e Sistemas Operacionais.

Hoje em dia as placas-mãe domésticas já trazem essa tecnologia, por isso vamos falar dos seguintes tipos de RAID, o RAID 0, RAID 1, RAID 0+1 e RAID 5.

Também o RAID 3 e 4 que não são muito usados, para falar a verdade hoje em dia os mais usados são o RAID 1 e RAID 5.

Antes de qualquer coisa deve-se saber que para implementação do RAID são necessários discos do mesmo tamanho, pois caso contrário à área do disco menor será usada para implementação. Também é aconselhável a mesma velocidade para ter um melhor desempenho, pois dessa forma você estará preso ao disco mais lento!

A partir do Windows 2000 você pode fazer RAID via software, essa opção tem em todos os Windows Server.

Agora é mais confiável RAID por Hardware!

RAID pode ser feito tanto com HDs IDE quanto SATA e SCSI.

RAID 0.

A implementação do RAID 0, não vai satisfazer o quesito de redundância. Esse modo está em criar discos virtuais, para distribuir os dados entre todos os discos e com isso você vai ganha um considerável ganho de desempenho. Então se você tiver 2 discos de 80GB, você vai ter uma área útil de 160GB.

Ex. 4 Hds de 80GB = 1 de 320GB de área útil.

Este tipo de implementação vai utilizar o máximo disponível de discos no sistema, mas não vai ter garantir redundância e de fato vai aumentar as chances do disco virtual falhar!

Ex. Se você tiver 4 Discos em RAID 0, Você terá quatro vezes mais chances de falhar do que um único disco.

Muitas pessoas acham que não tem problema em usar RAID 0, pois não tem arquivos importante e tem sempre o backup. Devemos lembrar que não só os arquivos que serão protegidos e sim todo o sistema e levando em conta a dor de cabeça de um dos discos falhar. Tudo bem que você pode está apenas com um disco e se ele falhar vai dar no mesmo se estiver em RAID 0, mas lembre-se que em RAID 0 são duas vezes maiores as chance de falha!

Resumo RAID 0

Vantagens: Aumento considerável de desempenho.
Desvantagens: Se um dos discos falhar o sistema para.

RAID 1

RAID 1 é conhecido como espelhamento, pois a idéia é espelhar as informações em um segundo disco. O sistema vai gravar os dados ao mesmo tempo nos dois discos.

Implementar RAID 1 protege os dados, pois caso um dos discos falhe, o sistema continua funcionando normalmente.

O uso do RAID um necessita de dois discos, pois como já foi dito acima um para o sistema normal e outro para espelhar o primeiro. Vamos dizer um HD clone.

A desvantagem do RAID 1 é o custo, pois você vai ter dois Discos e a área útil de apenas 1.

Ex. Dois Hds de 80GB em RAID 1 = 80GB de área útil.

Resumo RAID 1

Vantagens: Redundância, se um dos discos falharem o sistema continua funcionando.
Desvantagens:

Você vai precisar de 2 Hds, mas só vai usar a área útil de um.
Reduz um pouco o desempenho da escrita, pois o mesmo dado é gravado nos discos que estiverem em RAID 1.

RAID 0 + 1

Nessa implementação, você vai unir o conceito do RAID 0 e do RAID 1 e Você vai ter ao mesmo tempo ganho de desempenho e redundância. Esse tipo de implementação é mais usado para servidores de arquivos e bando de dados, mas pode ser usado em casa.

O problema de usar RAID 0 + 1, é o custo alto que você vai ter com HDs, pois no mínimo via ter que comprar 4 Hds.

Ex.
2 Discos para RAID 0 e 2 Discos para RAID 1, pois como no RAID 0, dois dicos viram um só, você vai precisar de mais dois para usar o RAID1, pois esses dois vão espelhar os outros dois em RAID 0.

Resumo RAID 0+1

Vantagens: Os dados são protegidos e você tem desempenho também.
Desvantagens: Vai necessitar de mais discos e com isso um custo maior.

RAID 5

RAID5 é conhecida com data guarding ou strip set com paridade. Essa implementação está em criar informações a partir de cálculos booleanos feitos com o dado útil (a informação a ser gravada no disco), gravando essa paridade em um dos discos e de forma distribuída.

Para implementação do RAID 5, no mínimo de 3 discos sendo que um é para paridade.

Exemplo didático

Imagine a seguinte situação: o dado consiste em dois números, sendo que na primeira gravação o dado tem valor 24 e na segunda gravação o dado tem valor 35. a paridade neste exemplo é calculada pela soma dos valores gravados no disco 1 e no disco 2. logo, no disco de paridade teremos o resultado 6(2+4) e 8 (5+3)

OBS. Como não estou conseguindo deixar alinhado os valores abaixo dos seus títulos então eles podem ser identificados pela 4.

Dado | Disco 1 | Disco 2 | Disco 3 Paridade |
24 2 4 6 (2+4)
35 3 5 8 (3+5)

Agora imaginemos que um dos discos falhou, por exemplo, o disco 1.

Neste caso, o sistema é capaz de gerar o dado por meio da operação inversa (no exemplo, a subtração) entre a paridade e o dado presente no disco 2.

Dado calculado | Disco 1 | Disco 2 | Disco 3 (paridade) |
2(6-4) 4 Falha 4 6 (2+4)
3(8-5) 5 Falha 5 8 (3+5)

Esse é um pequeno exemplo didático, mas essa operação é bem mais complexa do que uma soma e uma subtração! Está implementação dessa forma é chamada de RAID 4 na qual a paridade é sempre gerada num mesmo disco.

Só que foi percebido que esse disco de paridade tinha uma vida útil inferior em relação aos outros discos. E como não é bom ficar trocando os discos dos servidores, foi criado o RAID 5 que grava a paridade alternando o disco no qual a paridade é gravada.

A paridade é gravada ora no disco 1 e ora no disco 2, (isso no caso de 3 discos).

Se você tiver seis discos em RAID 5 sua área útil será de 6-1

Ex. 6 discos de 80GB sua área útil será 80GB (6-1) = 80GB x 5 = 400GB

Ou seja, você vai ter um disco virtual de 400GB com redundância a falhas, pois se um dos discos falharem, o sistema continua funcionando e disponibilizando os dados contidos nesse disco.

Vantagens – O desempenho de leitura é sensivelmente maior do que o espelhamento RAID 1, em operações normais.

Desvantagens –

Não seria realmente uma desvantagem, mas o desempenho de gravação de dados é reduzido devido ao cálculo de paridade.
Se um disco falhar, o desempenho de leitura cai, pois devido à reconstrução necessária.

Resumo.

O Uso do RAID 5 é muito usado em servidores de arquivos, banco de dados. Web, emails...

Infelizmente é muito difícil encontrar RAID 5 em placas-mãe de uso doméstico, a saída seria a compra de um controladora RAID offboard, mas não vem ao caso no uso doméstico.

Update Rollup 9 for Exchange Server 2007 Service Pack 1 has been released

2009-07-19T20:38:00.000-07:00

We have released Update Rollup 9 for Exchange Server 2007 Service Pack 1 (KB 970162) to the download center. The release of the rollup via Microsoft Update will happen on July 28.

The majority of changes in this rollup are bug fixes. Here are a few that I would like to call out:

KB 969911 - This is bug likely to affect customers who have deployed the Messaging Records Management feature and have specified a storage limit for a managed folder. After a move mailbox, the property which marks the folders as managed is not preserved.
KB 968621 - Store stops responding under certain conditions when scheduled backup is canceled and online maintenance is in progress.
KB 945877 - Performance improvements to eseutil when it verifies the checksum of transaction logs.
Support for Windows Server 2008 R2 Domain Controllers in the environment (Note: Exchange Server 2007 itself is not supported to be installed on a Windows Server 2008 R2 system.
KB 968715 - This bug is likely to affect customers who have deployed CAS-CAS proxying. When a user selects This is a public or shared computer or This is a private computer on the Outlook Web Access logon page, this value is not maintained between the CAS servers when the request is proxied. This bug will most likely affect customers with Internet facing CAS sites which proxy the requests to internal sites. Now the bug was that we defaulted to private access irrespective of the option selected by the user. Outlook Web Access has the following features which allow the administrator to control access of users depending on the logon type.:
Public and Private Computer File Access
WebReady Document Viewing
After deploying this rollup, the logon type will now be correctly maintained between CAS servers if the request is proxied. Administrators should watch out for scenarios where they have configured different behavior based on the logon type and required users to select the private computer option to access files, but users were able to access files without selecting the private computer option due to this bug. These users will now be unable to do so because we fixed the bug.
KB 970162 has more details about this release and a complete list of all fixes included in this rollup.
The release of Exchange Server 2007 Service Pack 2 (SP2) is just around the corner (slated for release in this quarter). SP2 will include all fixes in this Update rollup as well as the fixes contained in all prior rollups. We'll be posting more information on when future update rollups can be expected for Exchange 2007 SP2 as well as information about the patching improvements these rollups will bring.
Finally, I would like to call out our Exchange Software Updates forum. The forum is available to provide answers to questions about fixes contained in this rollup, help if you encounter issues when deploying the rollup, or if you just want to ask other forums users if you should take the plunge and install the rollup. We have engineers monitoring the forum to assist you.

Fonte: msexchangeteam

Microsoft Lança Beta de Antivirus Gratuito

2009-06-23T05:56:00.001-07:00

A Microsoft divulgou ontem que a partir de 23 de junho a versão beta do Microsoft Security Essentials vai estar disponível em Português para download no Brasil. O Security Essentials é um software antivirus que fornece proteção de alta qualidade (usando a mesma engine considerada a melhor do mercado pela AV-Comparatives) sem qualquer custo para quem possui o Windows XP, Windows Vista e Windows 7 original.

O Security Essentials oferece proteção em tempo real contra vírus e trojans, com atualizações de assinatura feita automaticamente pelo serviço Windows Update, e inclui um número de novas defesas contra rootkits e ataques mais agressivos, como monitoração do comportamento do kernel para detecção de alterações em componentes, acesso direto ao sistema de arquivos para detecção de arquivos escondidos, e uma nova forma de remoção de rootkits que envolve o download de um driver de kernel. O Security Essentials não inclui as recursos de relatório e de gerência de distribuição de assinaturas que antivirus para ambientes corporativos como o Forefront Client Security possuem, e é voltado para os usuários caseiros e em pequenas empresas.

Para a atender a este público a interface do Security Essentials é extremamente simples. Todo o processo de atualização é feito automaticamente e o antivirus roda em background sem incomodar o usuário. A remoção das ameaças é feito via 1 click. O Security Essentials é também otimizado para consumir o mínimo possível de recursos do sistema e não ser um "peso" na performance, em especial em equipamentos mais antigos.

O uso é 100% gratuito e não existe necessidade de registros, "trials", assinatura, renovação nem nada do tipo. Para obter o Security Essentials para fazer o download a partir do site da Microsoft - o link estará ativo a partir do dia 23.

Update Rollup 8 for Exchange Server 2007 Service Pack 1

2009-06-16T21:20:00.000-07:00

O Update Rollup 8 for Exchange Server 2007 Service Pack 1 está disponível para download.
Overview Update Rollup 8 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers. For a list of changes that are included in this update rollup, see KB968012. This update rollup does not apply to Exchange Server 2007 Release To Manufacturing (RTM). For a list of update rollups applicable to Exchange Server 2007 RTM, refer to the section Update rollups for Exchange Server 2007 RTM in the Knowledge Base article KB937052. This is a cumulative update rollup and replaces the following:
KB945684 Update Rollup 1 for Exchange Server 2007 Service Pack 1 (KB945684)
KB948016 Update Rollup 2 for Exchange Server 2007 Service Pack 1 (KB948016)
KB949870 Update Rollup 3 for Exchange Server 2007 Service Pack 1 (KB949870)
KB952580 Update Rollup 4 for Exchange Server 2007 Service Pack 1 (KB952580)
KB953467 Update Rollup 5 for Exchange Server 2007 Service Pack 1 (KB953467)
KB959241 Update Rollup 6 for Exchange Server 2007 Service Pack 1 (KB959241)
KB960384 Update Rollup 7 for Exchange Server 2007 Service Pack 1 (KB960384)

System Requirements
Supported Operating Systems: Windows Server 2003 R2 (32-Bit x86); Windows Server 2003 R2 x64 editions; Windows Server 2003 Service Pack 2; Windows Server 2003 Service Pack 2 x64 Edition; Windows Server 2008; Windows Vista; Windows XP Service Pack 2
Exchange Server 2007 SP1 must be installed prior to installing this update rollup.
This update rollup cannot be installed if you are using Exchange Server 2007 RTM.
Any Interim Updates for Exchange Server 2007 must be uninstalled prior to installing this update rollup.
32-bit editions of Windows Server 2003 with SP2, Windows Server 2003 R2 with SP2, Windows Server 2008, Windows Vista and Windows XP with SP2 are only supported for Exchange Server 2007 management tools.

Microsoft lança versão beta do Exchange Server 2010

2009-06-16T20:29:00.000-07:00

A Microsoft lançou a versão beta do novo programa Exchange Server, marcando o último desenvolvimento da tecnologia utilizada por 65%das empresas no mundo para executar sistemas de e-mail. A versão beta do Exchange Server 2010 é a primeira de uma onda de atualizações dos produtos da Microsoft, conforme a gigante norte-americana se prepara para o próximo lançamento do conjunto de programas Office.

A Microsoft, que está cada vez mais recorrendo à distribuição de alguns programas pela internet para conter ameaças do Google e outros concorrentes, informou que a nova versão do Exchange Server pode funcionar inteiramente como um serviço online, o que pode atrair clientes que procuram economizar dinheiro em hardware.

O novo Exchange Server oferece alguns recursos diferenciados, incluindo a capacidade do usuário parar de receber mensagens sobre temas que não o interessam. O sistema também tem recursos de segurança que alertam o usuário antes do envio de mensagem para garndes grupos de distribuição, para destinatários ausentes ou pessoas fora da organização.

Com isso, a Microsoft espera redução na chance de vazamento de informações e envio desnecessário de mensagens. Outra função disponível é a verbalização de mensagens enviadas ao computador. O lançamento final ao público do Exchange Server 2010 está agendado para o segundo semestre deste ano, enquanto o pacote Office 2010 deve ser disponibilizado na primeira metade do próximo ano.

Download da Versão Beta Abaixo:
http://www.microsoft.com/downloads/details.aspx?FamilyID=1898ed2c-2f88-48ac-824e-d3d20fad77d7&displaylang=en

Fonte: Reuters

Como Mover a Fila SMTP do Caminho Padrão de Instalação no Exchange 2007

2009-06-16T07:12:00.001-07:00

Ao contrário de versões anteriores do Exchange, todas as atividades da fila SMTP no Exchange Server 2007 acontece em uma nova base de dados ESE.

Por padrão, essa base de dados (e seus logs) existe na pasta C:\Arquivos de Programas\Microsoft\Exchange Server\TransportRoles\Data\Queue. Você pode querer mover este banco de dados e seus logs para um volume físico diferente para melhorar o desempenho.
Veja como fazer:

Para Alterar o Caminho da Base de Dados (Database):

1. Abra o Arquivo EdgeTransport.exe.Config na pasta C:\Arquivos de Programas\Microsoft\Exchange Server\Bin usando o Bloco de Notas;

2. Edite o valor da linha que contém “add key="QueueDatabasePath" para refletir o novo caminho. Por Exemplo:

add key="QueueDatabasePath" value="D:\QueueDB"

Para Alterar o Caminho dos Logs da Base de Dados (Database Logs):

3. Edite o valor da linha que contém add key="QueueDatabaseLoggingPath" para refletir o novo caminho. Por Exemplo:

add key="QueueDatabaseLoggingPath" value="D:\QueueLogs"

4. Salve o Arquivo e Reinicie o Serviço Microsoft Exchange Transport

Como Mover a Fila SMTP do Caminho Padrão de Instalação no Exchange 2007

2009-06-16T07:12:00.000-07:00

8 Passos para remover W32/Sality.AE

2009-06-10T07:00:00.001-07:00

Sality é um virus de computador que infecta arquivos com extenção .exe .com e .scr, sality Utiliza seus compartilhamentos para se proliferar através rede utilizando o velho autorun.inf Tecnica de espelhamento. Sua Aplicação depois de infectada fica cerca de 60kb a 80kb maior.

Vírus criado na China /Taiwan que tem uma lista de Web sites para se atualizar com variantes, alguns deles: pedmeo222nb.info, pzrk.ru, technican.w.interia.pl, www.kjwre9fqwieluoi.info e muito mais, bloquear esta lista pode proteje-lo no curto prazo, porem uma vez atualizado o virus causará novos problemas.

Sality para todos Serviços/Processos de antivirus, como: Symantec, F-Seguro Gatekeeper, NOD32krn, Mcafee e muito mais. Sality cria regras em seu Firewall para conseguir efetuar suas atualizações.

A maneira a mais fácil de saber se você esta contaminado por este vírus é você tentar iniciar seu computador em modo segurança o windows não subirá.

Removendo Sality

1- Desconecte o Computador da Rede

2- Desative a Restauração de Sistema "System Restore" durante o processo de limpeza.

3- Desative "Autrun" e "Compatilhamento Padrão" Faça o download deste arquivo para desativar. (É um Arquivo *.inf)

4- Mate todos processos Ativos e verifique o arquivo de inicialização para isto voce pode utilizar o Hijackthis.

5- Rode um Scan com Norman Malware Cleaner para limpar todos arquivo contaminados, lembre-se de baixa a ultima versão que ja englobem todas variantes disponiveis.

6- Para restaurar seu Modo de segurança faça o download deste arquivo e mescle o mesmo, atente-se a versão do sistema operacional este Postado é apenas para WINDOWS XP.

7- Para restaurar o Registro utilize este arquivo.

8- Reinicie o Computador e Faça um fullScan.

É isto ai...Livre do Mal...

Marcus Nepomuceno

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Exchange 2007 Content Filter: How to move messages to Junk Mail folder

2009-04-06T10:40:00.000-07:00

You've setup Exchange Server 2007, and configured the shiny new Content Filter agent (CFA), which is more than just a rewrite of the equally loved and hated Intelligent Message Filter (IMF) from Exchange Server 2003. The CFA has three thresholds - equivalent of Gateway thresholds and (gateway) actions in IMF.

These are: 1) SCLDeleteThreshold 2) SCLRejectThreshold and 3) SCLQuarantineThreshold.1. SCLDeleteThreshold: Messages with SCL equal to or higher than the SCLDeleteThreshold are deleted silently. To enable the SCLDeleteThreshold:

set-ContentFilterConfig -SCLDeleteThreshold 8 -SCLDeleteEnabled:$true2.

SCLRejectThreshold: Messages with SCL equal to or higher than the SCLRejectThreshold are rejected during the SMTP session, after the data is received. In this case, senders get a NDR. To enable the SCLRejectThreshold:

set-ContentFilterConfig -SCLRejectThreshold 7 -SCLRejectEnabled:$true

In the above case, Exchange doesn't accept the message. After the data is received, it responds with a 500 5.7.1 error and a rejection response (by default this response is: Message rejected due to content restrictions. This rejection message can be configured using the following command (response message used here is for illustration, not a real suggestion - Bharat) :
set-ContentFilterConfig -RejectionResponse "Stop spamming you *****!"The actual NDR is generated and sent to the sender by the sending host. What the sending host will see after the message content is sent (and if you actually modified the rejection response based on my example :)500 5.7.1 Stop spamming you *****!Figure 1: Exchange Server 2007's Content Filtering agent can be configured with the equivalent of all 3 Gateway actions available in Exchange Server 2003's Intelligent Message Filter (IMF): 1) Delete messages 2) Reject messages and 4) Quarantine messages3. SCLQuarantineThreshold: Messages with SCL equal to or higher than the SCLQuarantineThreshold are delivered to the quarantine mailbox, provided you have one configured. To enable the SCLQuarantineThreshold and configure a quarantine mailbox:

set-ContentFilterConfig -SCLQuarantineThreshold 6 -SCLQuarantineEnabled:$true -QuarantineMailbox:MyQuarantineMailbox@mydomain.com

This is an improvement over IMF, which had only one gateway action (and one corresponding gateway threshold). The Content Filter agent allows the flexibility of enabling all three actions on the gateway - the rule is: SCLDeleteThreshold > SCLRejectThreshold > SCLQuarantineThreshold.To get a list of all three SCL values and whether each action is enabled or not, use the following command:

get-ContentFilterConfig Select SCL*

So where's the equivalent of IMF's Store threshold? (to move messages to users' Junk Mail folders)?It's called SCLJunkThreshold, and it resides in a different location - in the Organization configuration. It can be set using the set-OrganizationConfig command:

set-OrganizationConfig -SCLJunkThreshold 5

Setting SCLJunkThreshold not intuitive?Before you jump to conclusions about this being counter-intuitive, or confusing - which it may be, consider this - it is in response to the different server roles in Exchange Server 2007.The gateway actions - delete, reject and quarantine - can be thought of as message transport actions, and thus applicable to transport server roles (the Edge server, or the Hub if you have antispam agents enabled on it). Moving messages to users' Junk Mail folders can be thought of as something that happens at the Store, performed by the Mailbox Server role.Another aspect to consider when setting the SCLJunkThreshold - if you're in a topology with an Edge server, the SCLJunkThreshold on the Edge doesn't impact anything. This needs to be set on your Exchange Org - the Edge server is not a part of it.The Defaults: By default, the SCLJunkThreshold is set to 4. If you have an existing Exchange Server 2003 SP2 server installed, and you haven't tweaked the Store threshold, IMF v2's default Store threshold of 8 is used - this is what you'll see in the Org's SCLJunkThreshold. Given that the SCLRejectThreshold is set to 7 by default, messages will not move to users' Junk Mail folder unless the SCLJunkThreshold is lower than the transport thresholds (i.e. the Delete, Reject and Quarantine thresholds).How the Junk Mail threshold is calculated: Unlike the transport actions of deleting, rejecting, and quarantining messages - which check for SCL equal to or higher than their respective thresholds, for moving messages to Junk Mail folder the Store checks for SCLs higher than the SCLJunkThreshold. This is consistent with the behavior of IMF in Exchange Server 2003 (read previous post: IMF Confusion - Store threshold rating text in UI).If you want to disable rejection of messages with SCL of 7 or above, use the following command:

set-ContentFilterConfig -SCLRejectEnabled:$false

Rollup 6 For Exchange Server 2007 SP1

2009-03-18T19:46:00.001-07:00

Problemas corrigidos pelo pacote cumulativo de atualizações

O Pacote Cumulativo de Atualizações 6 para Exchange Server 2007 SP1 corrige os problemas descritos nos seguintes artigos da Base de Dados de Conhecimento Microsoft:

950675 Os anexos de arquivos .xls baixados estão vazios quando você abre os arquivos usando o Outlook Web Access no Exchange Server 2007 Service Pack 1
955443 Algumas mensagens de disponível/ocupado não são replicadas dos servidores Exchange 2007 para Exchange 2003 depois que algumas caixas de correio são migradas do Exchange Server 2003 para o Exchange Server 2007
956536 O serviço de distribuição de arquivo do Microsoft Exchange usa muita memória e tempo de processador quando o Exchange Server 2007 processa muitos catálogos de endereços offline (OABs)
956624 O serviço de transporte do Microsoft Exchange trava continuamente depois de habilitar a regra de diário ou implantar um aplicativo antivírus em um servidor Exchange Server 2007
957748 A classe de mensagem personalizada de objeto de contato é substituída pela classe normal IPM.Contact quando um servidor Exchange 2007 replica o objeto de contato em qualquer outro armazenamento público
959239 MS09-003: Vulnerabilidade no Microsoft Exchange pode permitir a execução remota de código

Rollup 5 For Exchange Server 2007 SP1

2009-03-18T19:43:00.000-07:00

Problemas corrigidos pelo pacote cumulativo de atualizações

O Update Rollup 5 para o Exchange Server 2007 SP1 corrige os problemas descritos nos seguintes artigos da Base de Dados de Conhecimento da Microsoft:

925371 Os usuários do Domino não é possível localizar anexos de solicitação que são enviados de usuários do Exchange 2007 de reunião
939037 Por padrão, as configurações de conteúdo gerenciado aplicam a pasta raiz e todas as subpastas em um ambiente do Exchange 2007
949722 IDENTIFICAÇÃO de evento 800 não inclui o nome de usuário de usuários que executou o comando Get-MessageTrackingLog em um ambiente do Exchange 2007
949895 Falha de Shell de Gerenciamento do Exchange (pára de responder), e identificação de evento 1000 é registrado quando você executa uma migração entre florestas do Exchange Server 2003 para Exchange Server 2007 S949895
949901 Os usuários do Exchange 2007 não é possível enviar emails para uma pasta pública habilitados para email em um ambiente misto Exchange 2003 e o Exchange 2007
949968 A Unificação de Mensagens não trata o cabeçalho de desvio corretamente em Exchange Server 2007 Service Pack 1
950272 A formatação de uma mensagem de texto sem formatação é incorreto ao imprimir a mensagem de texto sem formatação usando o Outlook Web Access em um ambiente do Exchange Server 2007
951267 Ocorre uma exceção no Exchange console de gerenciamento quando você visualiza AddressList em um ambiente do Exchange Server 2007
951273 A data de recebimento e o tempo de recebimento de mensagens IMAP forem alteradas para o tempo de migração depois de migrar caixas de correio para um servidor Exchange 2007 Service Pack 1
951505 Você receberá uma mensagem de erro quando você executa o cmdlet Update-SafeList em um Exchange 2003 e o ambiente misto do Exchange 2007
951564 Exchange 2007 Service Pack 1 Update Rollup 5 oferece suporte a adição de novos itens para menus de contexto no Outlook Web Access 2007
951710 Você recebe mensagens de erro ou avisos quando você altera um esquema do Active Directory para que a propriedade da empresa oferece suporte a mais de 64 caracteres
952097 IDENTIFICAÇÃO de evento 12800 é registrada em um servidor com o Exchange 2007: "processamento de mensagens falhou porque não é memória disponível suficiente (8007000E-82000387)"
952583 Caracteres DBCS em japonês estão corrompidas quando você responde a uma mensagem ou encaminha uma mensagem em um ambiente do Exchange Server 2007 Service Pack 1
953619 Uma mensagem de conflito de pasta pública não puder ser entregue, e o erro de evento 1016 é registrado, quando o nome da pasta pública contém caracteres DBCS em um ambiente do Exchange Server 2007 Service Pack 1
953787 Você recebe uma mensagem de erro quando tenta mover caixas de correio do Exchange 2000 ou caixas de correio do Exchange 2003 de uma floresta para um servidor Exchange 2007 que está localizado na outra floresta, usando o comando Move-Mailbox
953840 IDENTIFICAÇÃO de evento 5000 ocorre e o serviço IMAP4 pode falhar, em um servidor que está executando o Exchange Server 2007 com o Service Pack 1 quando você usa um aplicativo de terceiros para migrar usuários POP3 e IMAP4
954036 Pastas ocultas ou arquivos listados quando você exibe um servidor de arquivos UNC usando o OWA em um ambiente do Exchange 2007
954195 A origem da tarefa não é notificada de alterações de tarefas e o andamento da tarefa em um ambiente do Exchange Server 2007
954197 CAS do Exchange 2007 não é possível copiar o OAB do compartilhamento OAB em clusters do Windows Server 2008 Exchange 2007 CCR
954270 Alterações de classe de mensagem durante a conversão quando uma notificação de disposição mensagem assinada digitalmente é recebida por um servidor que está executando o Exchange Server 2007 Service Pack 1
954451 Um item de compromisso não pode ser aberto por um aplicativo com base em CDOEX se o item for salvo pelo serviço de Web do Exchange em conjunto com a propriedade de cultura no Exchange Server 2007
954684 Você não pode usar um cliente do Outlook 2007 para exibir ou baixar um anexo quando você acessa uma mensagem que inclui um anexo em linha do Exchange Server 2007
954810 Uma caixa de correio de sala do Exchange 2007 parar de processar solicitações depois que o Assistente de Reserva de recurso recebe uma solicitação de reunião delegada de um usuário do Exchange 2003
954887 Você não pode adicionar um usuário de email ou um contato de email à lista de remetentes confiáveis no Exchange 2007 usando o cliente de OWA
955001 Mensagem de erro quando você usa o protocolo IMAP para enviar um comando de localizar que tem o argumento de conjunto de caracteres em um servidor Exchange 2007: "Erro de argumento de comando inválido"
955196 Arquivos de log não são copiados para o servidor de destino em um ambiente de replicação contínua em espera no Exchange Server 2007
955429 Faz com um aplicativo de backup do VSS que o armazenamento de informações do serviço falha repetidamente em um servidor Exchange 2007 Service Pack 1
955460 A hora de início e a hora de término de uma solicitação de reunião estão incorretas quando um delegado usa o serviço da Web do Exchange para enviar a solicitação em um ambiente do Exchange 2007
955480 As solicitações de reunião de remetentes externos são exibidas como ocupado, em vez de tentativa em um ambiente do Exchange 2007
955599 Mensagens de 10 de identificação de evento preencher o log de aplicativo em um servidor Exchange 2007 CAS se um proprietário de caixa de correio do Exchange Server 2003 faz um Web Service do Exchange chamar
955619 Um usuário não é possível acessar a caixa de correio usando um cliente POP ou um cliente IMAP por meio do servidor de acesso para cliente em um ambiente do Exchange 2007
955741 Uma mensagem permanece na caixa de saída, e a mensagem é reenviada até que ela seja excluída manualmente em dispositivos de 6.1-com base em Windows Mobile em um cenário de proxy do Exchange 2007 Service Pack 1 CAS
955946 O remetente recebe uma notificação de falha na entrega do servidor Exchange 2007 quando o remetente envia uma mensagem particular usando um servidor SMTP
955989 O registro do SPN de um cluster falha, e evento de erro 1119 identificações e 1034 são registrados em um ambiente do Exchange Server 2007 Service Pack 1
956199 Último caractere do nome de exibição chinês ’s usuário será truncado no catálogo de endereços offline em um servidor Exchange 2007
956319 O processo W3wp.exe pode falhar em um servidor Exchange 2007 CAS após usar o Entourage para enviar uma mensagem é maior do que 48 KB
956573 IDENTIFICAÇÃO de evento 1032 não é registrada no log do aplicativo quando os usuários enviar mensagens de email enquanto estiverem conectados ao Outlook Web Access como outro usuário no Exchange 2007
956582 Exchange Server 2007 Update Rollup 3 não atualiza o arquivo do Outlook Web Access logon.aspx depois de modificar o arquivo
956613 O processo W3wp.exe intermitentemente pára de responder e identificação de evento 1000 é feito no Exchange Server 2007 Service Pack 1
956709 Algumas reuniões recorrentes podem estar falta quando você exibe as reuniões usando o Outlook Web Access no Exchange Server 2007
957002 O processo de edgetransport.exe pode falhar intermitentemente em um servidor que está executando o Exchange Server 2007 Service Pack 1
957813 Um relatório de não-entrega é gerado quando você tentar enviar uma mensagem de alta prioridade maior que 250 KB em um ambiente do Exchange Server 2007 Service Pack 1
957978 A geração do OAB não tem êxito e 9328 de identificações de eventos e 9373 são registrados no log do aplicativo em um ambiente de cluster de Windows Server 2008 Exchange 2007 única cópia
958855 O serviço de Transporte de Borda falha repetidamente, e um erro de evento 1000 fizer logon repetidamente um servidor que está executando o Exchange Server 2007 Service Pack 1
958856 IDENTIFICAÇÃO de evento: 7012 ocorre quando você pesquisar logs de controle em um servidor do Exchange Server 2007 de mensagens

Update Rollup 4 para Exchange Server 2007 Service Pack 1

2008-10-26T10:27:00.000-07:00

Update Rollup 4 para Exchange Server 2007 Service Pack 1 (SP1) corrige problemas encontrados no Exchange Server 2007 SP1 desde o lançamento do software. Este update rollup é altamente recomendado para todos os clientes do Exchange Server 2007 SP1.

Para uma lista com todas as mudanças trazidas por este update rollup, visite o KB952580.

Este update rollup não se aplica ao Exchange Server 2007 RTM. Para ver uma lista com os update rollups disponíveis para o Exchange Server 2007 RTM, veja a seção Update rollups for Exchange Server 2007 RTM no artigo KB937052.

Este é um update rollup cumulativo e substitui os seguintes:

KB945684 Update Rollup 1 para Exchange Server 2007 SP1 (KB945684)

KB948016 Update Rollup 2 para Exchange Server 2007 SP1 (KB948016)

KB949870 Update Rollup 3 para Exchange Server 2007 SP1 (KB949870

Download: Update Rollup 4 para Exchange Server 2007 Service Pack 1

Service Unavailable no OWA do Exchange 2007

2008-10-15T07:44:00.000-07:00

Para dividir mais uma experiência com vocês, hoje pela manha estava tento o seguinte problema, Owa não estava funcionando para ninguem em minha empresa, Estava apresentando a seguinte mensagem: Service Unavailable

E no event Viewer
Check the Web Extensions and notice that ASP.Net was prohibit, and ASP.NET 2.0 was Allowed.
Then you point the following errors reported after the 1.1 update:
Event ID : 2268
Raw Event ID : 2268
Record Nr. : 609679
Category : None
Source : W3SVC-WP
Type : Error
Generated : 10/15/2008 04:02:32 AM
Written : 10/15/2008 04:02:32 AM
Machine :
Message : Could not load all ISAPI filters for site/service. Therefore startup aborted.

Data:
C1 00 00 00 ....

Event ID : 2274
Raw Event ID : 2274
Record Nr. : 609678
Category : None
Source : W3SVC-WP
Type : Error
Generated : 10/15/2008 04:02:32 AM
Written : 10/15/2008 04:02:32 AM
Machine :
Message : ISAPI Filter 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\\aspnet_filter.dll' could not be loaded due to a configuration problem. The current configuration only supports loading images built for a AMD64 processor architecture.

----------+----------------+--------------+

Resolução
Descobri que durante as atualizações automaticas havia sido instalado o .net framework 1.1 e apartir deste momento começou a gerar os eventos de erro acima citados, a solução foi a seguinte:
ASP.NET 2.0, versão de 64 bits
loadTOCNode(2, 'moreinformation');
Para executar a versão de 64 bits do ASP.NET 2.0, execute as seguinte etapas:
1.Clique em Iniciar, em Executar, digite cmd e clique em OK.

2.Digite o seguinte comando para desabilitar o modo de 32 bits:
cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 0

3.Digite o seguinte comando para instalar a versão do ASP.NET 2.0 e instalar os mapas de script
na raiz do IIS e em: %SYSTEMROOT%\Microsoft.NET\Framework64\v2.0.50727\aspnet_regiis.exe -i

4.Certifique-se de que o status do ASP.NET versão 2.0.50727 está definido como Permitido na lista Extensão de Serviço Web no Gerenciador dos Serviços de Informações da Internet.

Observação A versão de compilação do ASP.NET 2.0 talvez seja diferente, dependendo de qual for a versão de compilação lançada no momento. Estas etapas são dirigidas à versão de compilação 2.0.50727.

IIS 6.0 é compatível com os modos de 32 bits e de 64 bits. Entretanto, o IIS 6.0 não é compatível com ambos os modos simultaneamente na versão de 64 bits do Windows. O ASP.NET 1.1 é executado somente no modo de 32 bits. O ASP.NET 2.0 é executado no modo de 32 bits ou de 64 bits. Portanto, se você deseja executar o ASP.NET 1.1 e o ASP.NET 2.0 simultaneamente, será necessário executar o IIS no modo de 32 bits.

Fonte:
http://support.microsoft.com/kb/894435

2008-07-29T13:15:00.000-07:00

your Exchange 2007 is nearing its first birthday, there is a good chance you will soon come across some event log warnings concerning the expiry of an internal transport certificate. If you ignore these, users will start chasing you!! Outlook 2007 is now popping an expired certificate warning dialog.
With so many changes, it is easy to overlook some of the less shiny Exchange 2007 improvements, especially if you haven't been using earlier Exchange versions. Exchange 2007 automatically installs a self-signed certificate. Amongst other benefits, this certificate immediately secures OWA access enabling users to login to their mailbox using HTTPS.
One may replace this with the one issued by a Certification Authority. In any case earlier Exchange users will certainly appreciate that starting from the security of a self-signed certificate is much better than starting from the no security of port 80 HTTP.
One Year Later...
Those choosing to continue working with the self-signed certificate will have the opportunity to appreciate how time flies!! In fact Exchange will remind you of its first anniversary with events of the type:
Event Type: Warning Event Source: MSExchangeTransportEvent Category: TransportService Event ID: 12018Date: 13/04/2008Time: 09:01:00User: N/AComputer: EXSERVERDescription:The STARTTLS certificate will expire soon: subject: exserver.domain.local, hours remaining: 157700393E5D76615E855A773CFA08AB5842DFB0. Run the New-ExchangeCertificate cmdlet to create a new certificate.
Event Type: WarningEvent Source: MSExchangeTransportEvent Category: TransportService Event ID: 12017Date: 13/04/2008Time: 09:01:00User: N/AComputer: EXSERVERDescription:An internal transport certificate will expire soon. Thumbprint:157700393E5D76615E855A773CFA08AB5842DFB0, hours remaining: 295
The events are informative enough to point you to the right direction for resolving the issue i.e. calling the New-ExchangeCertificate cmdlet. Exchange is also kind enough to alert you days in advance. In the above event example we have 295 hours left, approximately 12 days.
You do check the event logs right? If not, or you simply ignore these events someone else will remind you! Most commonly Outlook 2007 users will be amongst the first to start knocking at your door. If the certificate expires, opening Outlook will cause an annoying dialog saying:
exserver.domain.localInformation you exchange with this site cannot be viewed or changed by others.However, there is problem with the site's security certificate…
Generating a New Certificate
Solving the problem is simple. To begin let see the currently installed certificate by running: Get-ExchangeCertificate List
Note that here I am taking screen shots from a test machine whose certificate is not about to expire! Some properties worth noticing include:
NotAfter - shows the certificate expiry date
Services - shows that the certificate applies to IMAP, POP, IIS and SMTP
Thumbprint - will use this to identify and make changes to this certificate
Creating a new certificate is just a matter of running the cmdlet:New-ExchangeCertificate
This will warn you about overwriting the SMTP certificate.
To be honest the first time I ran into this, I thought that was it. After all there were no more event log warnings. However this is not the case. Rerunning Get-ExchangeCertificate we see that the IIS service is still using the old certificate. This means Outlook users will still be knocking at our door.
We need to move the IIS service using Enable-ExchangeCertificate. To do this we need the thumbnail value of the newly created certificate. In my case I used this command: Enable-ExchangeCertificate -Thumbprint F7A8F1B443A0E7266C72CDE0603302C07B856076 -Service IIS
With the new certificate in place we may now remove the old certificate using Remove-ExchangeCertificate with the thumbprint value of the old certificate: Remove-ExchangeCertificate -Thumbprint 157700393E5D76615E855A773CFA08AB5842DFB0
References
Outlook 2007 and Exchange 2007 Certificate issue

Event ID 6014 Timeout Error

2008-07-29T10:59:00.000-07:00

Fix for Forefront Update Timeout Errors

I use Microsoft Forefront Security for Exchange Server on my Exchange 2007 Edge server.Recently I noticed the following error in the Application Event log:
Event Type: Error
Event Source: GetEngineFiles
Event Category: Engine Error
Event ID: 6014
Date: 2/9/2008
Time: 10:08:43 AM
User: N/A
Computer: GATEWAY
Description:Microsoft Forefront Server Security encountered an error while performing a scan engine update.Scan Engine: Kaspersky5Update Path: http://forefrontdl.microsoft.com/server/scanengineupdate/x86/Kaspersky5Proxy Settings: DisabledError Code: 0xC0001F58Description: The operation timed out.Followed immediately by:
Event Type: InformationEvent Source: GetEngineFiles
Event Category: General
Event ID: 2017
Date: 2/9/2008
Time: 10:08:43 AM
User: N/A
Computer: GATEWAY
Description:Forefront Server Security has rolled back a scan engine.Scan Engine: Kaspersky5This was happening every 5 minutes after Event ID 2034, which reports that Microsoft Forefront Server Security is attempting a scan engine update of the Kaspersky5 scan engine.To solve this error make the following change to the registry on the server running
Forefront:

Open Regedit
Navigate to the following key:
HKLM\SOFTWARE\Wow6432Node\Microsoft\Forefront Server Security\Exchange Server
Click New DWORD Value
Type EngineDownloadTimeout, and then press ENTER
Right-click the new value and select Modify
Select Decimal as the base, enter 600 in the Value data box, and then click OK. This setting causes the scan engine download process to time out after 600 seconds (10 minutes, instead of 5 minutes)
Exit Regedit

Note: You do not have to restart Forefront Server services or Exchange Server services after you change this registry entry.

Now perform a manual scanner update in Forefront:
Open Forefront Server Security Administrator
Click Scanner Updates under Settings
Select the appropriate scan engine that was previously timing out. In my case, Kaspersky Antivirus Technology
Click the Update Now button on the right side of the screen
Check the Application event log to ensure that the scan engine has updated properly (Event ID 2012).

Planning for Large Mailboxes with Exchange 2007

2008-07-24T13:15:00.000-07:00

Hoje achei um artigo muito interessante para quem precisa gerenciar MailBox muito grande, segeu o Link abaixo!

http://technet.microsoft.com/en-us/exchange/cc671168.aspx

Marcus Nepomuceno
Analista de Infra-Estrutura

Description of Update Rollup 3 for Exchange Server 2007

2008-07-15T06:51:00.000-07:00

Description of Update Rollup 3 for Exchange Server 2007
View products that this article applies to.
Article ID : 935999
Last Review : January 17, 2008
Revision : 7.1

SUMMARY
Microsoft has released Update Rollup 3 for Microsoft Exchange Server 2007. This article contains the following information about the update rollup:

• The issues that the update rollup fixes
• How to obtain the update rollup
• The prerequisites to install the update rollup
• Whether there are any known issues

INTRODUCTION
Issues that the update rollup fixes
Update Rollup 3 for Exchange Server 2007 fixes the issues that are described in the following articles in the Microsoft Knowledge Base:
• 931328 (http://support.microsoft.com/kb/931328/) An integer is added to the end of the legacyExchangeDN attribute of a newly created mailbox in Exchange 2007
• 930468 (http://support.microsoft.com/kb/930468/) The attachment is not displayed when you use Outlook 2003 to open an e-mail message that contains an attachment
• 931842 (http://support.microsoft.com/kb/931842/) Error message when the sender or the receiver of a meeting request has a double-byte character set (DBCS) display name in Exchange Server 2007: "The requested property was not found"
• 932207 (http://support.microsoft.com/kb/932207/) Error message when a user tries to open a forwarded message to accept or to deny a resource request in Exchange Server 2007: "Cannot open the free/busy information"
• 932515 (http://support.microsoft.com/kb/932515/) You receive a 5.2.0 non-delivery report (NDR) message when you send an e-mail message to an Exchange 2007 server that is running the Isinteg.exe tool in a dismounted mailbox store
• 934887 (http://support.microsoft.com/kb/934887/) DBCS characters are converted into two question marks in a forwarded e-mail message in Exchange 2007
• 936337 (http://support.microsoft.com/kb/936337/) Error message when you run the Test-ExchangeSearch cmdlet across domains in an Exchange 2007 environment: "The operation could not be performed because of a service"
• 932905 (http://support.microsoft.com/kb/932905/) A POP3 mail client may receive an error code, and event ID 1009 is logged on an Exchange 2007 mail server
• 934402 (http://support.microsoft.com/kb/934402/) The synchronization session of the mobile device fails, and you receive error code "0X85010015" when you try to synchronize a mobile device by using Exchange ActiveSync in Exchange Server 2007
• 935412 (http://support.microsoft.com/kb/935412/) The outgoing message always displays the name of the sender even though the administrator configured the message to hide the name in Exchange Server 2007
• 934259 (http://support.microsoft.com/kb/934259/) Certain IMAP clients cannot open the bodies of e-mail messages when users access their mailboxes on an Exchange Server 2007 server
• 932605 (http://support.microsoft.com/kb/932605/) A user cannot log on when the user accesses the mailbox of an Exchange 2003 IMAP4 back-end server through an Exchange 2007 server that is serving in a CAS role
• 933261 (http://support.microsoft.com/kb/933261/) The nickname of a mail user must be unique in a forest if you use the original release version of Exchange 2007
• 935202 (http://support.microsoft.com/kb/935202/) You cannot move a mailbox across forests in an Exchange 2007 organization
• 936747 (http://support.microsoft.com/kb/936747/) The Availability service may use a large amount of memory and the corresponding w3wp.exe process has a high memory usage in Exchange Server 2007

MORE INFORMATION

Service pack information

These issues are fixed by Microsoft Exchange Server 2007 Service Pack 1 (SP1). Microsoft released Exchange Server 2007 SP1 on November 29, 2007. To obtain this service pack, visit the following Microsoft Web site:
http://www.microsoft.com/downloads/details.aspx?FamilyId=44C66AD6-F185-4A1D-A9AB-473C1188954C (http://www.microsoft.com/downloads/details.aspx?FamilyId=44C66AD6-F185-4A1D-A9AB-473C1188954C)For more information about the issues that are fixed in Exchange Server 2007 SP1, click the following article number to view the article in the Microsoft Knowledge Base:
946138 (http://support.microsoft.com/kb/946138/) Issues that are fixed in Exchange Server 2007 Service Pack 1

Update rollup information

Update Rollup 3 for Exchange Server 2007 has been replaced by a later update rollup. You must download and install the latest update rollup. Note Update rollups for Exchange Server 2007 are not detected on clustered Exchange Server 2007 systems by Microsoft Update. For more information about how to obtain the latest update rollup for Exchange Server 2007, click the following article number to view the article in the Microsoft Knowledge Base:
937052 (http://support.microsoft.com/kb/937052/) How to obtain the latest update rollup for Exchange 2007 For more information about the Exchange 2007 servicing model, click the following article number to view the article in the Microsoft Knowledge Base:
937194 (http://support.microsoft.com/kb/937194/) The product service strategy for Exchange Server 2007

Prerequisites

The following list contains prerequisites for the update rollup for Exchange Server 2007:
•Exchange Server 2007 must be installed on the computer before you apply this update rollup.
•You must remove interim updates for Exchange Server 2007 before you apply this update rollup.
•Review the issues in the "Known issues" section before you apply this update rollup.
Restart requirement

The required services are automatically stopped and then restarted when you apply this update rollup.

Known issues

Certain Exchange Server services are disabled if you use Microsoft Update to deploy the update rollup or if you deploy the update rollup in silent mode. This known issue occurs only if a file that is updated by the update rollup is being used. This section contains more information about this issue.

Symptoms

You use Microsoft Update to apply Update Rollup 3 for Exchange Server 2007. Or, you apply the update rollup in silent mode. When you do this, certain services in Exchange Server 2007 are stopped and are disabled. Events that resemble the following are logged in the Application log:
Type: Error Source: MsiInstaller Category: None Event ID: 11306 Description: Product: Microsoft Exchange Server -- Error 1306. Another application has exclusive access to the file ' PathOfFile '. Please shut down all other applications, then click Retry. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 7b 32 34 42 32 43 31 36 {24B2C16 0008: 34 2d 44 45 36 36 2d 34 4-DE66-4 0010: 34 46 45 2d 42 34 36 38 4FE-B468 0018: 2d 41 34 36 44 39 44 35 -A46D9D5 0020: 45 36 42 33 31 7d E6B31}
Type: Error Source: MsiInstaller Category: None Event ID: 1023 Description: Product: Microsoft Exchange Server - Update 'Update Rollup 3 for Exchange Server 2007 (KB935999)' could not be installed. Error code 1603. Additional information is available in the log file Drive :\ FileName.log. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 7b 32 34 42 32 43 31 36 {24B2C16 0008: 34 2d 44 45 36 36 2d 34 4-DE66-4 0010: 34 46 45 2d 42 34 36 38 4FE-B468 0018: 2d 41 34 36 44 39 44 35 -A46D9D5 0020: 45 36 42 33 31 7d 20 7b E6B31} { 0028: 44 43 46 35 41 46 45 32 DCF5AFE2 0030: 2d 45 38 30 41 2d 34 32 -E80A-42 0038: 46 42 2d 41 36 30 44 2d FB-A60D- 0040: 41 33 42 37 35 45 38 45 A3B75E8E 0048: 43 33 39 34 7d 20 31 36 C394} 16 0050: 30 33 03
Type: Information Source: MsiInstaller Category: None Event ID: 11729 Description: Product: Microsoft Exchange Server -- Configuration failed. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 7b 32 34 42 32 43 31 36 {24B2C16 0008: 34 2d 44 45 36 36 2d 34 4-DE66-4 0010: 34 46 45 2d 42 34 36 38 4FE-B468 0018: 2d 41 34 36 44 39 44 35 -A46D9D5 0020: 45 36 42 33 31 7d E6B31} Additionally, you receive an error message that resembles the following if you use Microsoft Update to apply the update rollup:
Error Code: 0x80070643
Cause

This issue occurs if a silent installation of the update rollup encounters a "File in use" scenario. In this scenario, a file that is updated by the update rollup is being used.
Workaround

To work around this issue, view the Application log events that are mentioned in the "Symptoms" section to determine the file that is being used. Then, make sure that the file is not being used when you install the update rollup. Additionally, recover the original state of the Exchange Server services. To do this, use one of the following methods:

•If this is the first time that you experience this issue, run the ServiceControl.ps1 AfterPatch command from the Exchange Management Shell.
•If this is not the first time that you experience this issue, use the Services tool to manually configure the Startup type setting of the services. Perform this procedure before you install the update rollup.

REFERENCES

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 (http://support.microsoft.com/kb/824684/LN/) Description of the standard terminology that is used to describe Microsoft software updates

APPLIES TO
• Microsoft Exchange Server 2007 Enterprise Edition
• Microsoft Exchange Server 2007 Standard Edition

How to Configure the Availability Service for Cross-Forest Topologies

2008-07-15T06:48:00.000-07:00

Exchange 2007
How to Configure the Availability Service for Cross-Forest Topologies
Applies to: Exchange Server 2007, Exchange Server 2007 SP1 Topic Last Modified: 2007-03-28
This topic explains how to use the Exchange Management Shell to configure the Availability service for cross-forest topologies. The Availability service improves information workers' free/busy data by providing secure, consistent, and up-to-date free/busy information to computers that are running Microsoft Office Outlook 2007. By default, this service is installed with Microsoft Exchange Server 2007. In cross-forest topologies where all connecting client computers are running Outlook 2007, the Availability service is the only method of retrieving free/busy data.
Note:
You cannot use the Exchange Management Console to configure the Availability service for cross-forest topologies.
You can use the Availability service in cross-forest topologies across trusted or untrusted forests. The type of free/busy information is determined by whether the cross-forest free/busy data is configured as a per-user or an organization-wide service. Per-user free/busy information is possible only in a trusted cross-forest topology and makes it possible for the Availability service to make cross-forest requests on behalf of a particular user. This also allows a user in a remote forest to grant detailed free/busy information to a cross-forest user.
However, with organization-wide free/busy data, the Availability service can make cross-forest requests only on behalf of a particular organization. With organization-wide free/busy data, a user's default free/busy information is returned, and it is not possible to control the level of free/busy information that is returned to users in the other forest.
Configuring Windows for Cross-Forest Topologies

To configure Microsoft Windows for a cross-forest topology, you must install and configure GAL Synchronization (GALSync). For complete information about how to install and configure the GALSync feature in Microsoft Identity Integration Server (MIIS) 2003, see the following resources:
Microsoft Identity Integration Server 2003 Scenarios
Microsoft Identity Integration Server 2003
If you are running Office Outlook 2003 or earlier, you must use the Microsoft Exchange Inter-Organization Replication tool to synchronize free/busy data across multiple forests. For more information about the Microsoft Exchange Inter-Organization Replication tool, see Microsoft Exchange Server Inter-Organization Replication.
Before You Begin

To run the Get-ClientAccessServer cmdlet, the account you use must be delegated the following:
Exchange View-Only Administrator role
To run the Add-ADPermission cmdlet, the account you use must be delegated the following:
Exchange Organization Administrator role
To run the Add-AvailabilityAddressSpace cmdlet, the account you use must be delegated the following:
Exchange Organization Administrator role
To run the Set-AvailabilityConfig cmdlet, the account you use must be delegated the following:
Exchange Organization Administrator role
For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.
Procedure

To use the Exchange Management Shell to configure per-user free/busy data in a trusted cross-forest topology

On a Client Access server in the target forest, run the following commands to configure the Availability service for per-user free/busy data:
Copy CodeGet-ClientAccessServer Add-ADPermission -Accessrights Extendedright -Extendedrights "ms-Exch-
EPI-Token-Serialization" -User "\Client Access servers"
On the local Client Access server in the source forest, run the following command to define the access method and associated credentials:
Copy CodeAdd-AvailabilityAddressSpace -Forestname ContosoForest.com -AccessMethod PerUserFB -UseServiceAccount:$true
Note:
To configure bidirectional cross-forest availability, repeat these steps in the target forest.
For detailed syntax and parameter information, see the following cmdlet reference topics:
Get-ClientAccessServer
Add-ADPermission
Add-AvailabilityAddressSpace
Set-AvailabilityConfig
To use the Exchange Management Shell to configure organization-wide free/busy data in an untrusted cross-forest topology

On a Client Access server in the target forest, run the following command to set the organization-wide account on the availability configuration object to configure the access level for free/busy information:
Copy CodeSet-AvailabilityConfig -OrgWideAccount "Contoso.com\User"
Run the following commands to add the Availability address space configuration object for the source forest:
Copy Code$a = get-credential (Enter the credentials for organization-wide user in Contoso.com domain)
Add-AvailabilityAddressspace -Forestname Contoso.com -Accessmethod OrgWideFB -Credential:$a
If you choose to configure cross-forest availability with trust, and choose to use a service account (instead of specifying organization-wide or per-user credentials), you need to run the following command in the target forest to give Client Access servers in the source forest permission to serialize original user context.
To use the Exchange Management Shell to configure trusted cross-forest availability with a service account

Run the following command to configure trusted cross-forest availability with a service account:
Copy CodeGet-ClientAccessServer Add-ADPermission -Accessrights Extendedright -Extendedright "ms-Exch-EPI-Token-Serialization" -User "\Exchange servers"
Exchange 2007 and Exchange 2003 Cross-Forest Availability

For Outlook 2007 and Exchange 2007 users to view the free/busy information of Exchange Server 2003 users in another forest, you must configure the Availability service by using the Add-AvailabilityAddressSpace cmdlet. You will only need to run this command once on any server in the Exchange 2007 forest.
To use the Exchange Management Shell to configure Exchange 2007 and Exchange 2003 cross-forest availability

Run the following command to set public folder free/busy availability:
Copy CodeAdd-AvailabilityAddressSpace -ForestName Contoso.com -AccessMethod PublicFolder
Note:
To replicate free/busy information and public folder content between Exchange organizations you must use the Microsoft Exchange Inter-Organization Replication tool. For more information about the Microsoft Exchange Inter-Organization Replication tool, see Microsoft Exchange Server Inter-Organization Replication.

Rollup 2 for Exchange Server 2007 Service Pack 1 (KB948016)

2008-06-30T07:37:00.000-07:00

O Update Rollup 2 for Exchange Server 2007 Service Pack 1 (KB948016) está disponível para download.

Overview Update Rollup 2 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
For a list of changes that are included in this update rollup, see KB948016.
This update rollup does not apply to Exchange Server 2007 Release To Manufacturing (RTM). For a list of update rollups applicable to Exchange Server 2007 RTM, refer to the section Update rollups for Exchange Server 2007 RTM in the Knowledge Base article KB937052.
This is a cumulative update rollup and replaces the following:
KB945684 Update Rollup 1 for Exchange Server 2007 Service Pack 1 (KB945684)
System Requirements
Supported Operating Systems: Windows Server 2003 R2 (32-Bit x86); Windows Server 2003 R2 x64 editions; Windows Server 2003 Service Pack 2; Windows Server 2003 Service Pack 2 x64 Edition; Windows Server 2008; Windows Vista; Windows XP Service Pack 2
Exchange Server 2007 SP1 must be installed prior to installing this update rollup.
This update rollup cannot be installed if you are using Exchange Server 2007 RTM.
Any Interim Updates for Exchange Server 2007 must be uninstalled prior to installing this update rollup.
32-bit editions of Windows Server 2003 with SP2, Windows Server 2003 R2 with SP2, Windows Server 2008, Windows Vista and Windows XP with SP2 are only supported for Exchange Server 2007 management tools.

Exchange 2007: Windows 2003 Scalable Networking pack and its possible effects on Exchange

2008-03-02T18:27:00.001-08:00

Previously I did not mention what network cards were affected, but the majority of the cases that we have seen have dealt with Broadcom cards or network cards that have a Broadcom chipset in them.

Broadcom has provided an update to their drivers and can be downloaded from http://www.broadcom.com/support/ethernet_nic/netxtremeii.php that helps resolves the issues with these offloading feature problems. To determine if you have the correct update, you need to check the version numbers to ensure they are 3.7.19 or later. Anything lower than that does not have the fixes in them. ExBPA is being updated with a new rule to detect if the Scalable Networking pack features are enabled on the server.

NOTE: Before updating directly from Broadcom's site, I would recommend checking with your Server manufacturer first before applying the update directly from Broadcom as this may affect your ability to apply updates directly from each vendor in the future using their integrated update utilities.

Currently there are only a handful of manufacturers that have updated the drivers on their sites, but over time, you will see the updates available for downloading.

I have personally dealt with cases that having the Scalable Networking features enabled with the latest drivers have not caused any connectivity issues to/from Exchange servers, so you can now take advantage of these features that may help increase overall network performance on your servers.

EDIT: this post was edited on 7/20/07 to clarify the operating systems version that could be affected by this problem

Possibly impacted Operating System versions:

Windows 2003 SP1 with KB 912222: The Microsoft Windows Server 2003 Scalable Networking Pack Release installed
Windows 2003 SP2

With the release of the Scalable Networking Pack that is included with Windows 2003 SP2, we in Exchange support have been seeing some connectivity issues once the new networking features are enabled. These new features are enabled by default and are only used if your network card driver supports them. Some of the new architectural additions that were introduced with the Scalable Networking Pack are TCP Chimney Offload, Receive-side Scaling (RSS) and NetDMA. These were introduced because of the Microsoft Scalable Networking Initiative that was designed to help reduce OS bottlenecks caused by network packet processing. More information regarding the Scalable Networking initiative can be found at www.microsoft.com/snp.

What this is does essentially is to offload TCP/IP packet processing to the network card, thus freeing up valuable CPU cycles for your applications. The throughput increases that you can get from having these enabled are quite significant.

To support these new features, the NDIS miniport driver had to be redesigned to handle this, thus NDIS 6.0 was born. For more information regarding the updated NDIS miniport driver, see http://msdn2.microsoft.com/en-us/library/ms798546.aspx from the Windows Driver Kit NDIS Miniport Driver Reference. With the NDIS 5.1 driver, the Operating System was limited to processing network traffic on a single CPU which impacted CPU performance quite significantly. The new NDIS driver design allows for processing this same information across multiple processors which will improve performance quite significantly.

This appears like this would actually increase the performance of Operating System, but what does this have to do with Exchange? Well, some of the issues surrounding the problems are documented in 936594 and a short list of what may affect Exchange is listed below.

You cannot create a Remote Desktop Protocol (RDP) connection to the server.
You cannot connect to shares on the server from a computer on the local area network.
You cannot connect to Microsoft Exchange Server from a computer that is running Microsoft Outlook.
You can only connect to Web sites that are hosted on the server or on the Internet by using a secure sockets layer (SSL) connection. In this scenario, you cannot connect to a Web site that does not use SSL encryption.
You experience slow network performance.
You cannot create an outgoing FTP connection from the server.
You experience intermittent RPC communications failures.
Some Outlook clients may be unable to connect to Exchange.
You cannot run the Configure E-mail and Internet Connection Wizard successfully.
Microsoft Internet Security and Acceleration (ISA) Server blocks RPC communications.
You cannot browse Internet Information Services (IIS) Virtual Directories.

In Support Services, we are also seeing some of the following behaviors when clients are trying to connect to the Exchange server.

32 MAPI sessions exceeded (9646 errors) causing the inability for Outlook clients to connect to the Information Store. This can occur more frequently with VPN connected clients and we have also seen scenarios where Exchange 2007 is affected with Windows 2003 SP2 installed as well.
Non-paged pool memory leaks caused by having the Chimney feature enabled. Sometimes you can't even start the IIS services when Non-paged pool gets below 20MB.
The Inability to logon to Outlook Web Services or even IIS for that matter, either locally or remotely.
Networking throughput is decreased when these features are turned on. This is the opposite of what the Networking Pack is supposed to do.
Cluster ISAlive checks fail randomly
TCP Connections are reset when RSS is enabled.
TCP port exhaustion

Wow, now that is a lot of things that could possibly go wrong, so why have this enabled by default? The default assumes that the network card drivers are up to date or have the latest driver release that supports the new networking features. Most of the issues that we see are due to outdated network card drivers and simply updating the network card driver to the latest release has provided relief in most situations. Other cause that has been seen is outdated Storport/SAN drivers consuming higher than normal non-paged pool memory, so ensure that you have the latest storport.sys and SAN drivers installed on your servers to help mitigate this problem. If you are still having problems, then I would highly recommend opening a case with Support Services for further assistance.

So how does one go about troubleshooting something like this? One would think that Netmon may show you what is going on, but the truth to the matter is that once the data is handed off to the Network card, the netmon filter can never log that request. This makes it harder to troubleshoot unfortunately.

You can actually see what connections are offloaded by using the netstat â€“t command. This â€“t switch is only available if the networking pack is installed on a server. An offloaded network connection can be in one of the following states:

In Host â€“ The network connection is being handled by the host CPU
Offloading â€“ the network connection is in the process of being transferred to the offload target
Uploading â€“ the network connection is in the process of being transferred back to the host CPU
Offloaded â€“ the network connection is being handled by the offload target.

One of the more common issues we have seen is working with the TCP Chimney offload feature and most of the resolutions to date that we provide to customers is to disable that feature to see if that helps your specific scenario.

To disable TCP Chimney, you can do this one of two ways. I prefer the latter as it is instantaneous and does not require a reboot.

To Disable TCP Chimney, Navigate to the following registry key and set the value to 0. Note: You have to reboot the server after this registry change.

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"EnableTCPChimney"=dword:00000000

Or you can use the netsh command which I prefer without having to reboot:

Netsh int ip set chimney DISABLED

If that does help with the situation, you could also try disabling the following offloading keys under the above registry hive to disable the RSS features.

"EnableTCPA"=dword:00000000
"EnableRSS"=dword:00000000

If any of the above options help with the issue, this may be as simple as updating your network card drivers to the latest version and then re-enabling those features again to see if the problem still occurs. If there are still questions regarding whether or not your network card supports these new features, contact the hardware vendor for your card for more information.

To help with some of the HTTP resource constraints that may occur when nonpaged pool memory is less than 20MB on an Exchange Server with these features enabled, you can enable the AggressiveMemoryUsage registry key per 934878 to help HTTP services continue to function in low nonpaged pool memory conditions. Setting this same registry key may also help with allowing your cluster HTTP IsAlive polls to function in these low memory conditions that normally result in a failover. Of course, this is a workaround for a short period of time, but root cause of paged pool memory issues should be identified and fixed by following KB articles 177415, 912376, 317249, to help determine what might be causing the problem.

One other thing to mention here is that TCP Chimney offload and NetDMA will not work with the following features enabled:

Windows Firewall
Internet Protocol security (IPsec)
Internet Protocol Network Address Translation (IPNAT)
Third-party firewalls
NDIS 5.1 intermediate drivers

If any one of these features is turned on, TCP Chimney offload and NetDMA will not work regardless of the registry settings.

Using offloading with any Microsoft or 3^rd party NAT solution will also cause known connectivity issues with Exchange Servers, SBS, ISA servers, etc.

As you can see, there are many variables that can affect the performance and stability of your network card, so you just need to keep in mind the new networking features during your troubleshooting efforts.

I hope this helps shed some light on these new features and some of the issues that we in support are seeing here today. It may even prevent a future support call somewhere down the road.

For a list of partners that have tested Scalable Networking with their networking products, see Scalable Networking Partners.

References:

You cannot host TCP connections when Receive Side Scaling is enabled in Windows Server 2003 with Service Pack 2
http://support.microsoft.com/default.aspx?scid=kb;EN-US;927695

You may experience network-related problems after you install Windows Server 2003 SP2 or the Scalable Networking Pack on a Windows Small Business Server 2003-based computer that has an advanced network adapter
http://support.microsoft.com/default.aspx?scid=kb;EN-US;936594

TCP traffic stops after you enable both receive-side scaling and Internet Connection Sharing in Windows Vista or in Windows Server 2003 with Service Pack 1
http://support.microsoft.com/default.aspx?scid=kb;EN-US;927168

Fonte: msexchangeteam.com

Marcus Vinicius Melo Nepomuceno

Analista de Infra-Estrutura de TI

Exchange 2007: MSExchangeIS 9646

2008-03-02T17:26:00.001-08:00

Had a user who couldn't log on to his Exchange 2007 mailbox. He was getting this message:

"Unable to open your default e-mail folders. You must connect to your Microsoft Exchange Server computer with the current profile before you can synchronize your folders with your offline profile"

Essa done some digging and found this: http://www.davidunderwood.org/2007/10/02/Exchange2007WithOutlook2003ClientUnableToOpenDefaultEMailFolders.aspx

If you receive the error "Unable to open your default e-mail folders. You must connect to your Microsoft Exchange Server computer with the current profile before you can syncronize your folders with your offline profile" which persists across multiple computers with the same user then the user has attempted to connect too many times to the mail store and locked their store. Restarting the information store for Exchange 2007 corrected the issue.

The Application eventlog on the server reported:

Event Type:    Error
Event Source:    MSExchangeIS
Event Category:    General
Event ID:    9646
Date:        13/11/2007
Time:        15:09:08
User:        N/A
Computer:    GBRPSMMSWM01NB
Description:
Mapi session "/o=MyOrg/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=<user>" exceeded the maximum of 32 objects of type "session".

The fix is a bit drastic! A KB exists: 925815: An Exchange 2007 server stops responding to a MAPI client and logs event ID 9646 in the Application log
http://support.microsoft.com/?kbid=925815

Marcus Vinicius Melo Nepomuceno

Analista de Infra-Estrutura de TI

Exchange 2007: Event ID = 9646 - Users are not able to open default mailboxes.

2008-03-02T16:33:00.000-08:00

PROBLEM:
Users are not able to open default mailboxes.

Event Viewer from Exchange server
-----------
Event Type: Error
Event Source: MSExchangeIS
Event Category: General
Event ID: 9646
Date: 21/02/2008
Time: 16:32:54
User: N/A
Computer: Exchange server
Description:
Mapi session "/O=X/OU=X/cn=Recipients/cn=X" exceeded the maximum of 32 objects of type "session".

After installing Windows 2003 Scalable Networking Pack or Windows 2003 SP2 you no longer see TCPIP keepalives on network connections

This happens where the NIC card is a Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client); it can also occur with a re-branded card, such as HP NC373i.

KeepAlives failures appear differently in different applications. For Exchange, administrators will see old, orphaned connections, especially from users who connect via WiFi, VPN, etc. The connection counts will grow until users reach a maximum number of connections, causing various connection-related errors in Outlook. Event ID 9646 may appear in the application log at this point.

Problem was solved by disabling Chimney on the Exchange Network Card as requested on the article below:
disable these options due the communications problems reported after installing Win2k3 sp2:

936594 You may experience network-related problems after you install Windows Server 2003 SP2 or the Scalable Networking Pack on a Windows Small Business Server 2003-based computer

Mas um caso Solucionado - Duvidas entrem em Contato.

Marcus Vinicius Melo Nepomuceno
Analista de Infra-Estrutura de TI

Informatica: Concurso na Area de TI

2008-01-30T17:53:00.000-08:00

Esta Semana estive fazendo uma prova do concurso da Prodesp, achei interessante ao ler um folheto que indicava o site abaixo, aproveitei e coloquei aqui para todos terem acesso.
www.ticoncursos.com.br

Marcus Nepomuceno
Analista de Infra-Estrutura de TI

Exchange 2007: Conhecendo.

2008-01-04T05:36:00.000-08:00

A funcionalidade principal de um servidor Exchange é o transporte de mensagens de quem envia (origem) até quem recebe (destino final). Além da responsabilidade de rotear mensagens pear dentro da organização e para outras engines de transporte, o serviço de transporte do Exchange 2007 também é responsável pela aplicação de filtros de message hygiene que basicamente protegem a organização contra SPAM e Virus. Como esse tópico é GIGANTE, vou publicando por partes pois na minha opiníão, a parte de transporte é a alteração mais radical e mais legal do Exchange 2007.

Os 3 principais componentes envolvidos no processo de roteamento são:

Componentes de SMTP (SMTP IN e SMTP OUT) - Responsáveis por recever e enviar messagens sobre o protocolo SMTP;
Componentes de Fila e Gerenciamento de conexões - Responsáveis pela fila e por gerenciar as conexões para a entrega das messagens;
O Categorizer - Responsável por resolução de endereços, rotear, conversão de conteúdo, geração de DSN e MEX Runtime (Messaging Extensibility Runtime), responsável por monitorar eventos e tomar ações com as mensagens do pipeline.
No Exchange 2007, o principal componente para recebimento e envio de mensagens é o SMTP. Dois papéis do Exchange 2007 (HUB e Edge) são responsáveis pela entrega e roteamento de mensagens usando SMTP.

Todo o processo de roteamento, entrega e recebimento de mensagens no 2007 foi modificado em relação ao Exchange 2003. Veja o que mudou.

Código foi Reescrito - No Exchange 2003 grande parte do código era escrito em C e C++. O Exchange 2007 foi reescrito em C# e foi contruido em cima do framework .NET 2.0.

Serviço de Transporte - Diferente do Exchange 2003 que dependia da extensão do protocolo SMTP que era gerenciado pelo IIS o Exchange 2007 gerencia seus próprios componentes para roteamento e entrega de messagens. Todos os componentes agora são parte do serviço de transporte do Exchange 2007.

Papéis - As funcionalidades de transporte no Exchange 2007 dependem no papel que foi dado no momento da instalação. Os principais papeis de roteamento são o Edge Server e o Hub Transport Server. O Edge server foi projetado reduzir a superficie de ataque do Exchange pois ele foi desenhado para ficar na DMZ. O HUB tem a função similar ao do BridgeHead no Exchange 2003 com várias funcionalidades a mais que veremos em detalhes nos próximos artigos deste blog.

Roteamento - A entrega de mensagens para dentro ou para fora da organização passou por uma restruturação completa. O roteamento de messagens entre servidores Exchangefoi otimizado a acrescido de novas funcionalidades. Para que uma mensagem seja entregue para um recipiente dentro da organização pelo menos um HUB Server por Site Active Directory deve existir. Isso é mandatório mesmo para entrega de mensagens recebidas por usuários que compartilham um mesmo mailbox store.

Message Extensibility - Message Extensibility é implementado atraves do MEx Runtime e sua função é monitorar eventos disparar e controlar a execução de agentes.O MEx Runtime pode disparar agentes com diferentes objetivos como por exemplo message hyegiene, implementação de políticas etc. Para fazer isso, os agentes do Message Externsibility são registrados para serem disparados por eventos específicos. Nas versões anteriores do Exchange isso podia ser feito através da implementação de Event Sinks.

Ese Storage - No Exchange 2007 Hub Transport e Edge Server usa o ESE database para armazenar messagens enfileiradas e informações configuração como por exemplo block lists e remetentes. O ADAM, Active Directory application Mode, que é utilizado pelo Edge server é armazenado também em um ESE database.

Administração - No Exchange 2003 toda a administração do servidor era feita através do EMC (Exchange Management Console). No Exchange 2007 o EMC deve ser considerado como uma interface para o Exchange PowerShell. Atividades de administração avançadas não serão mais executadas a partir do EMC mas sim do shell.

Alta Disponibilidade - Cluster não é mais suportado no HUB eno Edge servr. Para alta disponibilidade é necessário a instalação de multiplos servidores. Para alta disponibilidade do fluxo de mensagens intra-org multiplos HUBs Servers podem ser instalados. Para alta disponibilidade do Edge server multiplos edge server devem ser instalados e os registros MX dever ser atualizados para incluirem todos os servidores. A clonagem pode ser utilizada para copiar a configuração de anti-spam entre os servidores.

Disater Recovery - O Hub Server armazena todas as informações de configurações no Active Directory. Como o AD é um repositório central, permite que em um cenário de Disaster Recovery o Hub server seja facilmente restaurado. Como no Exchange 2003 existe uma opção no setup para restauração do Hub server (/m:RestoreServer). Essa opção faz com que o Exchange dutilize os objetos existentes no AD ao invés de criá-los, aproveitando assim todas as informações de configuração. No Edge o processo é um pouco diferente, o Edge armazena toda a informação de configuração no ADAM, porém em um cenário de Disaster Recovery do Edge não é utilizado a opção Restore Server. Ao invés disso, um novo Edge é instalado e reconfigurado a partir de um clone da configuração (vamos saber mais sobre isso) e re-publicado no AD.

Link State - O Exchange 2003 utiliza Routing Groups para controlar as mensagens dentro da sua organização. A utilização de Routing Grupos ou Grupos de Roteamento necessitava de algoritmos de controle de link chamado no Exchange Link State. Não vou entrar a fundo nesse assunto porque não é o foco desse artigo, mas basicamente como o próprio nome diz é o algorítmo que controla o estado do link para que o Exchange conheça a topologia de roteamento. Agora, o Exchange 2007 roteia as mensagens baseado na topologia de sites do Active Directory e não existe mais o link state, ou seja não é mais responsabilidade do Exchange manter informações de rotas ele só consulta, isso fica por conta do AD.

MTA (X400) - O foco do Exchange 2007 é mensagens entregues através do protocolo SMTP. As implementações do MTA no Exchange 2007 foram removidas. No entanto o Exchange 2007 continua suportando mensagens baseadas em address types como (NOTES e (GWISE) o reteamento de mensagens que não utilizaresm esses Address Types deverão ser entregues por um servidor Exchange 2003 ou utilizar software de terceiros para o roteamento; O Exchange 2007 continua suportando outros conectores porém sua implementação mudou completamente veja abaixo.

Conectores Interop - A maioria dos conectores disponíveis no Exchange 2003 a nas versões anteriores foram removidos do Exchange 2007. O Exchange 2007 somente suporta conectores baseados em SMTP e um gateway não SMTP que utiliza o diretório "Drop" para processamento de mensagens por software de terceiros.

No próximo artigo vou falar um pouco mais sobre os papéis do HUB e Edge e detalhar um pouco da arquitetura e pre requisitos destes servidores.

Microsoft ForeFront Client Security

2007-12-16T17:49:00.001-08:00

WIndows 2003 - DNS

2007-12-16T16:43:00.000-08:00

Exchange 2007: Cmdlet - Shell

2007-12-16T12:34:00.001-08:00

Por Dentro do A380

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Airbus A380

2007-12-09T08:38:00.000-08:00

Impressionante este Video!

Mostra a contrução de um A380 em 7 Minutos muito bom!

http://www.youtube.com/watch?v=LbEiHGZtCFA