31 de maio de 2006

Exchange 2003 em Windows x64? Nem pensar!

Recentemente, estava eu num cliente a implementar uma infraestrutura de IT - AD, Exchange, SQL, etc. - quando me deparei com um problema inultrapassável. Os servidores eram recentes e suportavam Windows x64, por isso a decisão lógica foi a de instalar esta versão do Windows Server 2003.
Quando chegou a altura de instalar o Exchange Server 2003, começaram os problemas. A parte de Forestprep e Domainprep correram bem, mas quando lancei o setup do Exchange, fui confrontado com um aviso que o ASP.NET não estava instalado.
Após alguma pesquisa no Google, descobri finalmente que esta configuração não é suportada (bolas, já devia saber isto!).
De facto, o Exchange 2003 corre e é suportado em hardware de 64 bits, desde que o sistema operativo instalado seja de 32 bits! Foi a solução seguida.
Aqui ficam alguns links relacionados:

26 de maio de 2006

Leitura de fim-de-semana

Uma lista pequena esta semana, assim podem ler com mais atenção o primeiro artigo ;-)

25 de maio de 2006

Managing Exchange Messaging Services by Using Metrics

Grande, grande documento da equipa Microsoft IT: Managing Exchange Messaging Services by Using Metrics.

This white paper covers:

  • The business value of monitoring and managing Exchange messaging services as an end-to-end business service.
  • The team roles that Microsoft IT uses in monitoring and managing its Exchange messaging services.
  • The meaning of Exchange messaging service management.
  • The components of Exchange messaging service management.
  • The metrics that Microsoft IT uses for monitoring and managing its Exchange messaging services.
  • The processes that Microsoft IT uses for managing its Exchange messaging services.
  • The products and technologies that Microsoft IT uses to monitor and manage Exchange messaging services (including the Microsoft Operations Manager 2005 SLA Scorecard for Exchange).
  • The best practices that Microsoft IT uses in managing its Exchange messaging services.



E aqui fica o resumo das melhores práticas que a equipa Microsoft IT segue:
  • Use MOM 2005 to monitor Exchange Server 2003
  • Apply MOF best practices.
  • Collect metrics by using an automated method.
  • Clearly identify the business requirements for the service and map them to appropriate service levels.
  • Use the service virtual team approach for service delivery.
  • Adopt knowledge management processes that deliver consistent Exchange messaging services at a lower total cost of ownership (TCO).
  • Complete all the details of the service map to understand the dependencies and facilitate SLA and OLA discussions.
  • Conduct service review meetings weekly and monthly.

Sender ID overview

A Microsoft actualizou o folheto de divulgação da tecnologia de Sender ID (versão 2.0). Aqui fica a lista das empresas que já adoptaram este método de combate ao correio não-solicitado:



E aqui ficam mais alguns links interessantes:

  1. Sender ID: "Implementation Tips for the Sender ID Framework—Creating Your SPF Record"
  2. Sender ID: "Sender ID Framework Deployment Overview"
  3. "Sender ID: Authenticating E-Mail" Specification (Draft)
  4. Sender ID: "Sender ID Framework Executive Overview"
  5. Sender ID: "Sender Policy Framework: Authorizing Use of Domains in Mail From"

23 de maio de 2006

TCP/IP Fundamentals for Microsoft Windows

Quer se seja um Administrador de Exchange, um novato ou apenas um curioso tecnológico, os fundamentos de TCP/IP são absolutamente essenciais. A Microsoft publicou ontem o documento TCP/IP Fundamentals for Microsoft Windows. Definitivamente uma leitura obrigatória!

"This online book is a structured, introductory approach to the basic concepts and principles of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite, how the most important protocols function, and their basic configuration in the Microsoft® Windows Server® 2003 and Windows® XP operating systems. This book is primarily a discussion of concepts and principles to lay a conceptual foundation for the TCP/IP protocol suite and provides an integrated discussion of both Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6)."

22 de maio de 2006

Exchange e Outlook dominam o mercado do correio electrónico

De acordo com um estudo efectuado pelo Radicati Group, o Microsoft Exchange Server e o Microsoft Outlook são os campeões do mercado do correio electrónico.

The Radicati Group, Inc.’s latest study, “Microsoft Exchange and Outlook Analysis, 2006-2010,” provides an in-depth analysis of current and forecasted MS Exchange installed base, with extensive breakouts by version, business size and region. According to the report, Microsoft Exchange currently commands a 31% installed base market share and a 52% revenue market share of the corporate insourced messaging software market. The next version of Exchange, called Exchange 2007, is expected to be released in early 2007. Microsoft is also currently beta testing a hosted e-mail service called Office Live.

Microsoft has aggressively expanded its reach into the hosted e-mail market since 2003, and we expect that Microsoft’s revenue in this market will grow at an average annual rate of 25% over the next four years.

Microsoft leads the e-mail client market with Outlook, Outlook Express and Outlook Web Access. Uptake for Outlook Mobile, the company’s e-mail client for mobile devices has also been strong, due to increased demand for smartphones.

Leiam a Press Release completa.

19 de maio de 2006

Standalone Device Emulator 1.0

Finalmente! A Microsoft decidiu lançar uma versão standalone do emulador de dispositivos móveis (smartphone e pocketpc). Antes o emulador estava apenas disponível com a instalação do Visual Studio, embora houvesse uma solução/workaround que não requeria a suite de desenvolvimento da Microsoft (Standalone Emulator).
Bem, o que é certo é que agora já existe a versão oficial standalone. E vem acompanhada com imagens do Windows Mobile 5.0 com o Messaging and Security Feature Pack, o que quer dizer que podemos simular as últimas funcionalidades do Exchange Server SP2: DirectPush e Remote Wipe.
O emulador está disponível neste link e, já agora, aqui ficam umas imagens do seu aspecto.


P.S. À data deste post, a página onde se pode descarregar o emulador tem uma gralha no título ;-)

17 de maio de 2006

Webcasts de messaging em Junho

Fonte: Eileen Brown's WebLog

TechNet Webcast: Security Matters: Secure Messaging (Level 200)
Tuesday, June 06, 2006 - 9:00 AM - 10:00 AM Pacific Time
Ryan McGee, Senior Product Manager, Security Product Market, Microsoft Corporation
This webcast outlines the Microsoft approach to securing a messaging infrastructure. Learn about the comprehensive, multi-layered Microsoft messaging solution comprised of on-premise software and hosted services that complement Microsoft Exchange Server. These products and technologies help prevent server outages, improve employee productivity, and enable secure remote access to Exchange Server. The customer's ability to choose how they want to deploy and manage their messaging infrastructure is given particular focus in this session.TechNet

Webcast: Integrating SharePoint Portal Server 2003, Outlook, and Exchange (Level 300)
Wednesday, June 07, 2006 - 9:30 AM - 10:30 AM Pacific Time
Scott Jamison, Information Worker Architect, Microsoft Corporation
Microsoft Office SharePoint Portal Server 2003 and Microsoft Office Outlook provide key integration points such as contacts and calendars. However, many users want additional integration. This webcast explains how to better integrate SharePoint Portal Server 2003, Outlook, and Microsoft Exchange Server using custom Web parts, Single Sign-On (SSO), search in SharePoint Portal Server, and Microsoft Visual Studio 2005.

TechNet Webcast: Protecting Your Exchange Server 2007 Network from Viruses and Spam (Level 300)
Thursday, June 08, 2006 - 9:00 AM - 10:00 AM Pacific Time
Mihai Costea, Program Manager, Microsoft Corporation
Join this webcast to learn about the agent-based messaging hygiene features in the next version of Microsoft Exchange Server, code-named Exchange Server 2007. Out of the box, Exchange Server 2007 provides you with a competitive antispam solution that is composed of multiple filters with frequent updates and a built-in IP reputation system. Of interest to independent software vendors (ISVs) is antivirus technology such as store scanning and mechanisms for reliable and efficient transport scanning.

TechNet Webcast: Microsoft Exchange Server 2007: The Next Generation of Exchange (Level 200)
Monday, June 12, 2006 - 10:30 AM - 11:45 AM Pacific Time
Terry Myerson, General Manager of Exchange, Microsoft Corporation
Microsoft Exchange Server 2007, the next major version of Exchange Server, represents a leap forward. Information workers can now access larger mailboxes, and e-mail administrators have a more manageable and secure e-mail infrastructure than in the past. In this webcast, we provide an overview of the Exchange Server product direction and look at some of the new features that are included in the product.

TechNet Webcast: Getting Started with Exchange Server 2007: Simple Installation, Setup, and Administration Scenarios (Level 200)
Tuesday, June 13, 2006 - 11:45 AM - 1:00 PM Pacific Time
Alexander MacLeod, Software Development Engineer Test Lead, Microsoft Corporation, Charlie Chung, Program Manager, Microsoft Corporation
Built on a standard Microsoft installer so that you can take advantage of patching services such as the Software Update Service. New server roles so that you can flexibly deploy the topologies you require. The power to automate installation. These are just some of the new advancements in the Microsoft Exchange Server 2007 setup experience. This is a must-see webcast if you are looking for an overview and walk-through of how to deploy Exchange Server 2007.

TechNet Webcast: Mail That Speaks to You: Unified Messaging in Microsoft Exchange Server 2007 (Level 200)
Wednesday, June 14, 2006 - 12:45 PM - 2:00 PM Pacific Time
David Howell, Group Program Manager, Microsoft Corporation
Unified Messaging is being integrated into Microsoft Exchange Server 2007. Attend this webcast to learn about the features and benefits of Exchange Unified Messaging. Exchange Unified Messaging supports speech recognition, so this demonstration is one you aren't going to want to miss! See how Exchange can take voice mail and fax messages and how you can call in over any phone to access your voice mail, e-mail, calendar, or contacts. Exchange Unified Messaging also supports a speech-enabled corporate directory service (an automated attendant) right out of the box, so that you can customize a highly professional telephone presence for your company.

Microsoft Office System Webcast: Tips and Tricks for More Secure Communication with Outlook 2003 (Level 100)
Thursday, June 29, 2006 - 9:00 AM - 10:00 AM Pacific Time
Andy Reed, Senior Training Specialist, Pacific Technical Consulting (PTC)
Learn the fundamentals of security, auditing, privacy, and protection in Microsoft Office Outlook 2003. Find out how to choose secure passwords, create profiles, limit exposure to viruses and junk e-mail, create more secure attachments, and incorporate encryption and digital signatures into your e-mail. This webcast on connected productivity shows how you can reduce vulnerabilities and enhance reliable communication inside and outside your organization by implementing Outlook 2003 with Microsoft Exchange Server 2003. This webcast illustrates these techniques through demonstrations that represent typical interactions between team members.

Momentum Webcast: Increase E-Mail Security and Availability Using Active Directory (Level 100)
Thursday, June 01, 2006 - 9:00 AM - 10:00 AM Pacific Time
Tim Armstrong, Technology presenter, Microsoft Corporation
Maintaining the security and availability of e-mail is a daily responsibility for IT professionals. Microsoft Exchange Server 2003 was developed with this challenge in mind. Exchange Server 2003 builds on the strengths of the Microsoft Windows Server 2003 Active Directory directory service to provide your organization with a secure and powerful e-mail infrastructure. Attend this webcast to learn how Exchange and Active Directory work together to increase the security and availability of your e-mail system, while opening new ways for users to access their information.

TechNet Webcast: Using Microsoft Antigen 9.0 to Secure E-Mail Servers (Level 200)
Tuesday, June 27, 2006 - 11:00 AM - 12:00 PM Pacific Time
Peter Eicher, Senior Product Manager, Microsoft Corporation
Attend this webcast to learn about the latest versions of Microsoft Antigen for Exchange, Antigen for SMTP Gateways, and Antigen Spam Manager. Discover how these products can help protect your business from viruses, worms, spam, and inappropriate content. Find out how Antigen manages multiple antivirus engines to help improve overall virus detection, integrates multiple anti-spam technologies for maximum protection against unsolicited e-mail, and prevents undesirable language or inappropriate content from entering or leaving your organization’s e-mail system. This session includes a live demonstration of Antigen for Exchange, in addition to a discussion of new features like integration of the new Microsoft antivirus engine, improved cluster support, and an enhanced signature update process.

15 de maio de 2006

A Internet Security Systems (ISS) acredita que nos tempos mais próximos poderá surgir um worm que explore a vulnerabilidade descrita no boletim de segurança MS06-019 e que afectará os sistemas baseados em Exchange Server em todo o Mundo. De acordo com a equipa X-Force da ISS:

"Testing done by X-Force confirms denial of service of the Exchange Server is easily achieved with no user interaction and is not mitigated by firewall best practices.
Further analysis of this issue reveals that code execution is possible, but difficult to obtain. However, with the high profile of Microsoft Exchange as a target and the nature in which it is typically deployed, we expect to see active exploitation of this issue in the wild with the possibility of a worm."

Aceitem este conselho, apliquem o patch o mais depressa possível.
Links relacionados:

11 de maio de 2006

Mais 2...

... documentos de Exchange que foram recentemente actualizados e passaram para o novo formato (do qual eu não sou grande fã), encontrando-se agora sincronizados com a versão online.

10 de maio de 2006

Actualização do filtro Junk Email do Outlook (Maio 2006)

Está disponível uma nova actualização para o filtro Junk E-mail do Outlook 2003.

"This update provides the Junk E-mail Filter in Microsoft Office Outlook 2003 with a more current definition of which e-mail messages should be considered junk e-mail."

O download está disponível aqui ou através do Microsoft Update. Como é habitual, está acompanhado pelo respectivo artigo da Knowledge Base:

9 de maio de 2006

Administration Guide for Microsoft Exchange Server 2003

A Microsoft acaba de actualizar o documento Administration Guide for Microsoft Exchange Server 2003, que está agora na versão 4.0.
São algumas centenas (!) de procedimentos que estão minuciosamente descritos, pelo que se recomenda a sua leitura atenta.

This guide explains how features work in the Exchange Server architecture, and how to configure and manage these features for optimal results. This content ranges from configuring global settings at an organizational level, to managing individual servers, to managing Exchange clusters. After reading this guide, you will have a solid understanding of what it takes to configure and manage your Exchange Server 2003 organization.

Actualizações de segurança para Exchange 2000 & 2003

A Microsoft disponibilizou uma actualização de segurança para o Exchange, incluída no boletim mensal de patches de vulnerabilidades.
A vulnerabilidade em causa, MS06-019, pode permitir execução remota de código e encontra-se descrita no artigo 916803 da Knowledge Base. A actualização está disponível nos seguintes links:

Novo blog@MSExchange.org

Desde o dia 5 de Maio que iniciei um novo blog no site MSExchange.org. O endereço é:

O conteúdo deste blog será Inglês e o tema será, obviamente, o servidor Exchange e tudo o que o rodeia. Apesar de eu ser o autor de um outro blog em Inglês, http://msmvps.com/ehlo, tenciono manter os dois, sendo que os conteúdos serão exclusivos em cada um dos blogs.

5 de maio de 2006

Leitura de fim-de-semana

Devido à não publicação desta rúbrica na semana passada, a lista de hoje será anormalmente extensa. Se não tiverem tempo de ler tudo, vejam ao menos o primeiro :-)

Exchange & Office 2007 Roadshow


Andava eu pelos grupos de discussão técnicos da Microsoft, quando li um post do David Figueiredo muito interessante. A Windows IT Pro Magazine em colaboração com a Microsoft está a organizar uma conferência de 1 dia sobre Exchange & Office 2007.

"Get the facts about deploying Exchange & Office 2007 in one information-packed day. Independent Exchange and Office experts will present practical, real-world information in three tracks -- Exchange 12 for the IT Pro, Delivering Better Inbox Value, and The Business Value of Office 2007. Each presentation will end with a question-and-answer session. You'll come away from the Get Ready for Exchange & Office 2007 Roadshow with a clear understanding of how to implement a best-practices migration to Exchange Server 2007, how to use Exchange Server 2007's new capabilities to improve your messaging environment, and how you and your end users can get the most out of Office 2007."

Este roadshow ocorrerá no Centro de Congressos de Lisboa (antiga FIL) no próximo dia 30 de Maio. O registo é grátis e dá ainda direito a uma assinatura digital da revista Windows IT Pro durante 6 meses. Aqui fica o link para o site oficial do evento:

Actualização de ferramentas de Exchange

A Microsoft voltou a realizar pequenas actualizações nalgumas ferramentas de Exchange. Aqui fica a lista:

Documentos de Exchange

A Microsoft está a realizar um esforço no sentido de manter as versões online dos documentos sincronizadas com as versões disponíveis para download.
O último documento documento que passou por este processo foi Exchange Server 2003 RPC over HTTP Deployment Scenarios.
Foi também o caso dos documentos que eu referi num post anterior, Novos documentos de Exchange (?).

3 de maio de 2006

E o nome oficial do Exchange "12" é... Exchange 2007

De volta das minhas repousantes férias, deparei-me com esta notícia "bombástica". O nome oficial da próxima versão do Exchange será Exchange Server 2007.
Duh! Mas será que não poderia ser mais óbvio? Senão vejamos, o nome de código da versão presentemente em desenvolvimento é Exchange "12" e a razão para o "12" foi para alinhar com a versão do Office. Ora, dado que o nome oficial do Office há muito que é conhecido, Office 2007, não faria sentido que o Exchange tivesse agora um nome diferente.
Aqi ficam alguns links relacionados, incluindo um da KC Lemson com uma proposta para o novo logo:

E por falar em nomes oficiais, também o Monad foi rebaptizado: PowerShell! Vejam também os links:

21 de abril de 2006

Leitura de fim-de-semana

AVISO: Para a semana não haverá a tradicional rúbrica de "Leitura de fim-de-semana" por motivo de férias. Quero estar uma semana afastado de toda e qualquer tecnologia. Bem... Estou disposto a abrir uma execepção para a máquina de venda de cervejas ;-)
E agora, a lista:

20 de abril de 2006

Dispositivos móveis com MSFP

Por esta altura já todos devem saber que a funcionalidade de DirectPush do Exchange Server 2003 SP2 só funciona com dispositivos móveis com o Windows Mobile 5.0 e o Messaging and Security Feature Pack (MSFP), certo?
OK, o problema é que o MSFP não pode ser simplesmente descarregado da Internet e instalado, é necessário que o fabricante o disponibilize como actualização.
Jason Langridge compilou recentemente a lista dos dispositivos móveis com MSFP:

Orange
SPV M5000
SPV C600
SPV M600

O2 XDA Mini S

Sprint PPC 6700

i-mate (updates via www.clubimate.com)
SP5 e SP5m
K-Jam
JasJar

QTEK (updates via www.myqtek.com)
9000
9100

Symbol MC70

Gigabye – G-Smart

[UPDATE]
Treo 700w (obrigado Alberto)

19 de abril de 2006

Webcasts de messaging em Maio

Está disponível no blog da Eileen Brown a lista de webcasts de messaging para Maio. Aqui fica um resumo:

TechNet Webcast: Recipient Management and Permissions in Exchange "12" (Level 300)
Tuesday, May 02, 2006 - 11:30 AM - 12:30 PM Pacific Time
Brad Clark, Program Manager Lead, Microsoft Corporation
Learn how to create and manage most types of recipients using the management console and management shell in the next version of Microsoft Exchange Server, code-named Exchange “12,” without Recipient Update Service (RUS) running in the background. See how a lower-level administrator can easily become a Recipient Manager without changing the access control list (ACL). This webcast also provides an overview of the Exchange “12” permissions model along with a primer on provisioning address lists.

TechNet Webcast: Policy Enforcement and Regulatory Compliance with Exchange "12" (Level 300)
Thursday, May 04, 2006 - 11:00 AM - 12:00 PM Pacific Time
Shawn M Thomas, Program Manager Lead, Microsoft Corporation
Many companies struggle to meet the changing interpretations of "compliance," while others have created new business opportunities by implementing tighter controls and increasing the transparency of their business processes. This webcast explains how the new features in the next version of Microsoft Exchange Server, code-named Exchange “12”, can help your company to enforce policies and comply with regulations. We also describe how the Exchange Server partner community can play an important, ongoing role in the dialog on compliance.

TechNet Webcast: Exchange “12” Management Shell and Scripting (Level 300)
Tuesday, May 09, 2006 - 1:00 PM - 2:00 PM Pacific Time
Vivek Sharma, Program Manager, Microsoft Corporation
This webcast focuses on the command-line and scripting interface (based on Microsoft Windows "Monad") in the next version of Microsoft Exchange Server, code-named Exchange “12.” See how to convert your multiple-page Microsoft Visual Basic and component object model (COM) scripts to a single line in Exchange “12.” We cover the basics of the management shell along with the underlying design and key concepts. Learn tips and tricks for building larger scripts that you can use to automate small, medium, and enterprise business scenarios. The session includes demonstrations of several single-line scripts that you can use immediately, with little or no tweaking.

TechNet Webcast: Secure Collaboration with Antigen (Level 200)
Friday, May 12, 2006 - 9:00 AM - 10:30 AM Pacific Time
Matt Hester, TechNet Presenter, Microsoft Corporation
Find out how you can help protect your messaging and collaboration servers from viruses, worms, spam, and inappropriate content with Antigen. This webcast explains what Antigen is and describes how it is tightly integrated with Microsoft Exchange Server, SharePoint Products and Technologies, and Live Communications Server to help ensure strong protection and centralized control without taxing server or network infrastructure performance. Learn how the content and file filtering technologies in Antigen can help ensure that your organization complies with corporate content policies, while eliminating inappropriate language and dangerous attachments from internal and external communications.

TechNet Webcast: Protecting Your Exchange “12” Network from Viruses and Spam (Level 300)
Monday, May 15, 2006 - 11:00 AM - 12:00 PM Pacific Time
Mihai Costea, Program Manager, Microsoft Corporation
Join this webcast to learn about the agent-based messaging hygiene features in the next version of Microsoft Exchange Server, code-named Exchange “12”. Out of the box, Exchange “12” provides you with a competitive antispam solution that is composed of multiple filters with frequent updates and a built-in IP reputation system. Of interest to independent software vendors (ISVs) is antivirus technology such as store scanning and mechanisms for reliable and efficient transport scanning.

TechNet Webcast: Scripting Secrets of Exchange Server 2003 (Level 300)
Wednesday, May 17, 2006 - 11:30 AM - 12:30 PM Pacific Time
Paul Robichaux, , 3Sharp
You have probably heard about the Windows “Monad” Shell, the next-generation command-line and scripting environment coming in the next version of Microsoft Exchange Server, code-named Exchange “12.” But were you aware that Microsoft Exchange Server 2003 already includes a robust set of scripting capabilities? You can script many common, tedious operations in Exchange Server 2003, and you can easily write scripts to inspect or change many key configuration settings of your Exchange organization and servers. Join this webcast to learn how to create and manipulate Exchange objects, how to unlock the full power of unattended setup in Exchange, and how to optimize your backup processes using scripts.

TechNet Webcast: Introduction to the Exchange Server Best Practice Analyzer Tool (ExBPA) (Level 300)
Wednesday, May 31, 2006 - 11:30 AM - 1:00 PM Pacific Time
Harold Wong, TechNet Presenter, Microsoft Corporation
The Microsoft Exchange Server Best Practices Analyzer Tool (ExBPA) is an automated health check and troubleshooting tool. It collects configuration settings and performs network and protocol tests in an Exchange topology, and then sends the results to an XML output file. This webcast describes the benefits of this tool, and covers topics related to its implementation such as scheduling and baseline support. We also discuss how to use the tool with Microsoft Operations Manager (MOM) 2005.

Microsoft Office System Webcast: Tips and Tricks for More Secure Communication with Outlook 2003 (Level 100)
Thursday, May 04, 2006 - 9:00 AM - 10:00 AM Pacific Time
Andy Reed, Senior Training Specialist, Pacific Technical Consulting (PTC)
Learn the fundamentals of security, auditing, privacy, and protection in Microsoft Office Outlook 2003. Find out how to choose secure passwords, create profiles, limit exposure to viruses and junk e-mail, create more secure attachments, and incorporate encryption and digital signatures into your e-mail. This webcast on connected productivity shows how you can reduce vulnerabilities and enhance reliable communication inside and outside your organization by implementing Outlook 2003 with Microsoft Exchange Server 2003. This webcast illustrates these techniques through demonstrations that represent typical interactions between team members.

TechNet Webcast: Mobility Features in Exchange Server 2003 SP2 (Level 300)
Wednesday, May 10, 2006 - 11:30 AM - 12:30 PM Pacific Time
Harold Wong, Senior TS, Microsoft Corporation
Is your organization’s mobile access solution secure, flexible, and affordable? This webcast demonstrates the advanced security features in Microsoft Exchange Server 2003 with Service Pack 2 (SP2) and discusses how the product provides affordable access to e-mail and personal information across a range of mobile devices. Join us as we explore the new mobility enhancements in Exchange Server 2003 SP2, including the new Always-up-to-date Notification feature. We also cover configuring personal identification number (PIN) lock settings, remotely wiping a device, configuring soft certificates to access Exchange Server 2003, and more.

TechNet Webcast: How Microsoft IT Does Mobile Messaging (Level 300)
Tuesday, May 30, 2006 - 9:00 AM - 10:00 AM Pacific Time
David Wilson, Microsoft IT Service Manager, Microsoft Corporation
This webcast describes how Microsoft IT used Microsoft Exchange Server 2003 with Service Pack 2 and Windows Mobile 5.0 with the Messaging and Security Feature Pack to enhance its mobile messaging infrastructure. By implementing these new technologies, Microsoft IT was able to manage mobile devices more easily, better secure mobile devices, and enable end users to take advantage of a richer mobile messaging experience.

18 de abril de 2006

Microsoft promove tecnologia de autenticação de e-mail

Durante a realização do evento Email Authentication Summit que se realiza em Chicago, a Microsoft anunciou que está a desenvolver esforços em conjunto com outros fabricantes para promover a utilização de mecanismos de autenticação de e-mail, prevenindo assim a disseminação de spam e outros tipos de email não desejado.
Obviamente que, no caso particular do gigante informático de Redmond, é uma oportunidade para promover a tecnologia de Sender ID.
A Press Release Microsoft Furthers E-Mail Protection Efforts contém ainda alguns indicadores interessantes relativamente à taxa de crescimento de utilização de Sender ID e ao sucesso de aplicação desta tecnologia no sistema Hotmail/Windows Live Mail.

17 de abril de 2006

13 de abril de 2006

Apresentações da conferência Exchange Connections

O grande Paul Robichaux disponibilizou para download as apresentações que realizou na conferência Exchange Connections, que ocorreu de 9 a 12 de Abril em Orlando, USA.
Aqui fica o link:

12 de abril de 2006

Novos documentos de Exchange (?)

Estão disponíveis para download no site da Microsoft, alguns documentos sobre Exchange com a data de ontem (11-Abr-2006) e com a versão 1.0. Mas os nomes soam-me familiares, não tenho a certeza se são mesmo novos ou se foram apenas actualizados. Aqui ficam os links:

11 de abril de 2006

Documentação de Sender ID

Foi recentemente disponibilizada nova documentação sobre Sender ID. Goste-se ou não, esta tecnologia veio para ficar.

7 de abril de 2006

Leitura de fim-de-semana

A lista, desta vez a tempo e horas.

DirectPush passo-a-passo

Está disponível o guia de configuração passo-a-passo para a implementação das novas funcionalidades de mobile messaging com o Exchange Server 2003 SP2 e o Windows Mobile 5.o. Não se esqueçam que os dispositivos móveis precisam do Messaging and Security Feature Pack, já disponibilizado por alguns fabricantes.

6 de abril de 2006

Actualização de ferramentas de Exchange

A Microsoft voltou a disponibilizar uma actualização de algumas ferramentas para utilizar com o Exchange Server. Aqui fica a lista:

Ah, e já agora, também relacionado com o Exchange 12, saiu a mais recente versão beta do Monad:

5 de abril de 2006

Exchange na Wikipedia

A Wikipedia é hoje uma fonte de informação incontornável. Está lá tudo, desde as artes à ciência e tudo à distância de um click (e à borla).
Descobri recentemente a entrada sobre Exchange Server. História, versões e o futuro, toda a informação sobre o servidor de correio electrónico da Microsoft.
Vale a pena consultar!

4 de abril de 2006

MVP mais 1 ano

Pois é, a mensagem de confirmação chegou finalmente, fui renomeado como Microsoft Most Valuable Professional (MVP) mais um ano.
Fazendo o balanço do meu primeiro ano, aqui ficam alguns apontamentos:

  • De uma forma geral o balanço é positivo, o programa MVP contribui de forma positiva para o conhecimento global da comunidade técnica;
  • Noto que ainda há muita gente em Portugal que não sabe o que são MVP's. Os MVP's não trabalham para a Microsoft e, apesar de pessoalmente ter muitas vezes uma opinião positiva sobre os produtos da empresa de Redmond, a verdade é que estes profissionais são, ou esforçam-se por ser, agnósticos;
  • Penso que internacionalmente, o brand MVP confere alguma notoriedade;
  • O Summit em Redmond foi excelente, só é pena só se realizar de 18 em 18 meses;
  • Os benefícios e o acesso previlegiado a informação podia ser melhorado;
  • A possibilidade de aprofundar o relacionamento com empregados da Microsoft é sem dúvida uma mais-valia;
  • And last, but not the least, as pessoas: Espanhois, Holandeses, Noruegueses, Dinamarqueses, Americanos, Brasileiros, (etc.) e obviamente Portugueses. As pessoas que conheci são fabulosas. Utilizando uma expressão que aprecio particularmente, a todos eles um grande bem-haja!

P.S. Para quando MVP's PALOP? (esta do "para quando" tem muito que se lhe diga... Não liguem, é uma private joke)

Registo para versão Beta do Exchange 12... e outras

Está disponível no site TechNet Beta Central o pré-registo para as versões Beta públicas de variados produtos, entre eles o Exchange 12.

"Será o primeiro a ser notificado quando os lançamentos beta do Windows Vista, Microsoft® Office 2007 e Exchange "12" estiverem disponíveis para transferência ou para encomenda em DVD. Irá ainda receber actualizações e informações regulares através da newsletter Microsoft TechNet Flash, desde o momento em que se regista até ao lançamento do produto. Mais ainda? Ao registar-se terá acesso à Série de Vídeos Windows Vista onde poderá ver executivos da Microsoft a demonstrar as fantásticas funcionalidades do novo interface do produto, bem como os seus benefícios estratégicos de TI para a sua organização."

Exchange Hosted Services

Não foi propriamente uma surpresa o anúncio feito pela Microsoft sobre a sua mais recente oferta: Exchange Hosted Services.
De facto, estes novos serviços são o culminar da aquisição da FrontBridge em Julho do ano passado. A Microsoft vai dividir a sua oferta em 4 serviços distintos:

Microsoft Exchange Hosted Filtering, available with a free 30-day trial, incorporates multiple filters to actively help protect businesses’ inbound and outbound e-mail from spam, viruses, phishing scams and e-mail policy violations.
Microsoft Exchange Hosted Archive is an advanced message archiving system for e-mail and instant messages that helps enterprises meet a variety of regulatory and legal demands placed on their electronic communication systems.
Microsoft Exchange Hosted Continuity is a security-enhanced Web interface that allows ongoing access to e-mail during and after unplanned outages of an on-premise e-mail environment.
Microsoft Exchange Hosted Encryption helps preserve e-mail confidentiality by allowing users to send and receive encrypted e-mail directly from their desktops.


Aqui fica o link para a Press-Release.

2 de abril de 2006

Leitura de fim-de-semana

Uff! Foram dias complicados, os que passaram. Trabalho, trabalho e mais trabalho! E o blog é que paga. Bem, vamos lá tentar retomar o ritmo de posts diários. Aqui fica a lista de fim-de-semana, que na semana passada fez greve.

15 de março de 2006

MSFP, finalmente!

A propósito de comparações entre BlackBerry e o Windows Mobile, actualizei recentemente a ROM do meu i-mate JASJAR, sendo que agora já inclui o famoso Messaging and Security Feature Pack (MSFP).
Traduzindo isto por miudos, tenho uma série de funcionalidades novas entre as quais o direct push e-mail, ou se quiserem, e-mail "na hora" (aliás, no segundo).
A experiência tem sido bastante boa e recomenda-se. Tive até que desligar o direct push, ou arriscava-me a ter uma factura de telemóvel astronómica (não é que a funcionalidade consuma muito tráfego, eu é que recebo muitos mails).
Agora resta esperar que os outros fabricantes comecem a disponibilizar ROMs com o MSFP.

14 de março de 2006

BlackBerry vs Windows Mobile

A WIPRO disponibilizou um documento comparativo entre as tecnologias RIM BlackBerry 4.0 e o Windows Mobile com o Messaging and Security Feature Pack (o tal que permite direct push e-mail). O estudo é patrocinado pela Microsoft, por isso não esperem grandes críticas negativas à tecnologia de Redmond ;-)
O documento pode ser consultado neste link.

3 de março de 2006

Leitura de fim-de-semana

Gostava de poder dizer que estou num paraíso tropical a escrever esta lista, mas não, estou em casa a ouvir a chuva lá fora :-(

Exchange 12 Beta 1 Community Technology Preview

A notícia já tem 2 dias, mas para quem ainda não sabe, a Microsoft vai disponibilizar a versão Beta 1 do Exchange 12 como Community Technology Preview (CTP). Isto na prática quer dizer que os assinantes TechNet e MSDN (cerca de 200.000) vão poder por as mãos na próxima versão do Exchange Server.
Notícias relacionadas:

2 de março de 2006

Sem comentários

1 de março de 2006

Actualização do JetStress

A Microsoft disponibilizou hoje uma versão actualizada da ferramenta JetStress. A nova versão, 06.05.7795, aparece cerca de 1 mês depois da última actualização (06.05.7775). Ainda estou a tentar perceber quais são as diferenças...

"Use Jetstress to verify the performance and stability of a disk subsystem prior to putting an Exchange server into production. Jetstress helps verify disk performance by simulating Exchange disk Input/Output (I/O) load. Specifically, Jetstress simulates the Exchange database and log file loads produced by a specific number of users. You use Performance Monitor, Event Viewer, and ESEUTIL in conjunction with Jetstress to verify that your disk subsystem meets or exceeds the performance criteria you establish."

Webcasts de messaging em Março

Lista de webcasts de messaging e colaboração, compilados por Eileen Brown:

TechNet Webcast: An Overview of Exchange “12” (Level 200)
Tuesday, March 14, 2006 - 1:00 PM - 2:30 PM Pacific Time
Terry Myerson, General Manager, Microsoft Corporation
The next major version of Microsoft Exchange Server (code-named Exchange “12”), represents a leap forward in technology, enhancing information workers’ access to larger mailboxes while giving the e-mail administrator a more manageable and secure e-mail infrastructure. This webcast provides an overview of the product direction and offers a sneak peek at some of the new feature enhancements that will be included in Exchange “12”.

TechNet Webcast: Giving the Administrator More Control in Exchange “12” (Level 200)
Wednesday, March 15, 2006 - 11:30 AM - 1:00 PM Pacific Time
Perry Clarke, Product Unit Manager, Microsoft Corporation
You can now have a complete and scriptable command-line interface for Microsoft Exchange Server. In this webcast, find out about the biggest changes for administrators in the next version of Exchange (code-named Exchange “12”), from the new setup interface and Exchange System Manager to the Exchange command-line shell. See an overview of the updated architecture of Exchange “12” and learn how improvements to input/output and advances in high availability and disaster recovery can make large mailboxes widely available at lower cost.

TechNet Webcast: Client Access and Web Services in Exchange “12” (Level 200)
Thursday, March 16, 2006 - 11:30 AM - 1:00 PM Pacific Time
David Lemson, Group Program Manager, Microsoft Corporation
The front-end server you know from Microsoft Exchange Server 2003 has evolved into the Client Access Services role in the latest release (code-named Exchange “12”). Along with the name change comes new capabilities and broader access to the resources in the Exchange environment. In this webcast, learn about advances in Exchange “12” client access support, including Microsoft Office Outlook Web Access. We also show you how to integrate mail, calendar, and other data from the Exchange store into your line-of-business applications.

TechNet Webcast: Message Security and Active Protection in Exchange “12” (Level 200)
Friday, March 17, 2006 - 9:30 AM - 11:00 AM Pacific Time
Marco DeMello, Product Unit Manager, Microsoft Corporation
Regulations, spam, viruses, snoops, and spies are just some of the many threats and complications that affect e-mail today. In this webcast, find out how the next release of Microsoft Exchange Server (code-named Exchange “12”), can help your organization move from insecure, postcard-like e-mail that can be easily intercepted and read, to e-mail in secure digital envelopes that are encrypted and signed. We explore the anti-spam and anti-virus features in Exchange “12” that help create a cleaner message stream. We also look at the updated range of messaging policy and improved regulatory compliance features in this new release, including transport rules, per-user journaling, message labels, and bannering.

TechNet Webcast: Exchange Server 2003 Tips, Tricks, and Shortcuts (Level 300)
Friday, March 24, 2006 - 11:30 AM - 1:00 PM Pacific Time
Kevin Remde, TechNet Presenter, Microsoft Corporation
Your organization is running Microsoft Exchange Server 2003, and it is stable. What can you do to improve your Exchange operations, customize them, and optimize them to better meet the requirements of your organization? This webcast provides tips on how to customize system messages, address lists, and Microsoft Office Outlook Web Access. We also explain how to control which versions of Microsoft Outlook are allowed to connect to the Exchange server, how to use Mailbox Manager, and how to create catch-all mailboxes.

TechNet Webcast: Exchange Performance Tuning (Level 300)
Wednesday, March 29, 2006 - 9:30 AM - 11:00 AM Pacific Time
Kevin Remde, TechNet Presenter, Microsoft Corporation
Are you getting all the performance out of Exchange Server 2003 that you'd like? During this session, which was highly rated when presented at Tech•Ed 2005 in Orlando, Florida (TechEd ID: MSG368), we explore all aspects of performance tuning for Exchange server 2003, covering Windows, Exchange, and system resources. Understand and learn best practices, registry tweaks, and performance monitoring that can help your Exchange environment run more smoothly.

TechNet Webcast: Introduction to the Latest Suite of Exchange Migration Tools (Code-Named Red Bull) (Level 200)
Wednesday, March 29, 2006 - 1:00 PM - 2:00 PM Pacific Time
Erik Ashby, Program Manager, Microsoft Corporation
Gary Devendorf, Technical Evangelist, Microsoft Corporation
A development group at Microsoft is devoted to providing tools and utilities to assist Lotus Notes customers with migrating to or co-existing with Microsoft Exchange Server and Microsoft .NET. If you currently work with Lotus Notes, check out this webcast to find out what tools are available now and what is planned for the future. Never before has there been this much emphasis on helping Lotus Notes customers embrace the Microsoft platform. It is worth your time to stay up-to-date on the latest developments, because things are changing fast.

Microsoft Office System Webcast: Top 10 Tips to Save Time in Outlook (Level 100)
Thursday, March 16, 2006 - 9:00 AM - 10:00 AM Pacific Time
Andrew Reed, Senior Training Specialist, Pacific Technical Consulting (PTC)
Improve the way you manage information, communicate with others, and organize your work using a single resource. The new and improved features of Microsoft Office Outlook 2003 and Microsoft Exchange Server 2003 work together to help you more effectively manage and organize your e-mail and share information. Join us for this informative webcast to learn some of our favorite tips and tricks for getting the most out of Outlook 2003.

Microsoft Office System Webcast: Tips and Tricks to Take Your E-mail Skills to the Next Level with Outlook 2003 (Level 100)
Thursday, March 23, 2006 - 9:00 AM - 10:00 AM Pacific Time
Andrew Reed, Senior Training Specialist, Pacific Technical Consulting (PTC)
Do you feel comfortable with the basics of Microsoft Office Outlook 2003? Are you ready for more sophisticated techniques? This webcast provides a brief walkthrough of Outlook 2003 and focuses on some of the product's intermediate capabilities. Learn how to manage your Inbox by using rules and alerts, share online calendars, protect and control your sensitive information using Information Rights Management, and more. Improve the way you manage information, communicate with others, and organize your work with Outlook 2003.

Momentum Webcast: Increase Your E-Mail Security and Availability by Leveraging Active Directory (Level 100)
Thursday, March 16, 2006 - 11:00 AM - 12:00 PM Pacific Time
Tim Armstrong, Technology Presenter, Microsoft Corporation
Information technology professionals face many daily challenges. Maintaining the security and availability of e-mail for users is probably one of the most important of these daily challenges. Microsoft Exchange Server 2003 was developed with this in mind. Exchange Server 2003 builds on the strengths of Active Directory and provides you with a secure and powerful e-mail infrastructure. Attend this webcast to learn how Exchange and Active Directory work together to increase the security and availability of your e-mail system, while opening new ways for your users to access their information.

25 de fevereiro de 2006

The Tips and Tricks Guide to Secure Messaging

Jim McBee, blogger e Exchange MVP, tem andado ocupado a escrever um eBook intitulado The Tips and Tricks Guide to Secure Messaging.
Embalado pelo meus 2 últimos posts - Leitura de fim-de-semana e Biblioteca online de Exchange - venho pois convidar que se dediquem à leitura do capítulo diponibilizado online.

23 de fevereiro de 2006

Biblioteca online de Exchange

Existe muita documentação sobre Exchange disponível na Internet. A equipa de Exchange da Microsoft é sem dúvida muito activa neste campo.

No entanto, não há nada como o cheiro a papel e o prazer de desfolhar um livro técnico bem grosso. Infelizmente o preço destas "bíblias" técnicas nem sempre é o mais apelativo. Felizmente existem muitos autores que disponibilizam amostras dos seus trabalhos através da disponibilização de capítulos inteirinhos.

Fazendo alguma pesquisa na Internet consegue-se reunir uma boa colecção destas prendas, uma verdadeira biblioteca online de Exchange.

• Microsoft Exchange Server 2003 Distilled, Scott Schnoll
Exchange Server 2003 Tips and Tricks

• Special Edition Using Microsoft Office Outlook 2003, Patricia Cardoza
Managing Outlook Folders in Office 2003

• Microsoft® Exchange Server 2003 24seven, Jim McBee; Barry Gerber
Chapter 4: Understanding Exchange 2003 Data Storage

• CYA Securing Exchange Server 2003 & Outlook Web Access, Henrik Walther, Patrick Santry
Chapter 5 Securing the Outlook Web Access Server

• Mastering™ Microsoft® Exchange Server 2003 ,Barry Gerber
Chapter 4: Exchange Server 2003 Architecture

• Microsoft Exchange Server 2003 Delta Guide, David McAmis, Don Jones
Chapter 8 "Security"

• Learning Exchange Server 2003, William Boswell
Migrating from Legacy Exchange
Chapter 5, “Managing Recipients and Distribution Lists”

• Anti-Spam Tool Kit, Paul Wolfe Charlie Scott Mike Erwi
Chapter 11, Anti-Spam Servers for Windows
Chapter 5, "Blocking spammers with DNS blacklists"

• Microsoft Exchange Server 2003, Tony Redmond
Chapter 1, "A Brief History of Exchange"
Chapter 8, "Performance and clusters"

• The Administrator Shortcut Guide to Email Protection, Paul Robichaux
Chapter 3, "Server-Side Antivirus Protection"

• Mission-Critical Microsoft Exchange 2003, Jerry Cochran
Chapter 4, "When Exchange Servers Fall Down"
Chapter 5, "Protecting and Recovering Exchange data"

• MCSA/MCSE Implementing and Managing Exchange Server 2003 Exam Cram 2, Orin Thomas, Will Schmied and Ed Tittel
Chapter 6, “Managing, Monitoring, and Troubleshooting the Exchange Organization”

• The Definitive Guide to E-Mail Management and Security, Kevin Beaver
Chapter 6, “Managing e-mail effectively”

• Microsoft Exchange Server 2003 Unleashed, Rand Morimoto
Chapter 3, "Installing Exchange Server 2003"
Chapter 15 "Migrating from Exchange v5.5 to Exchange Server 2003"

• Secure Messaging with Microsoft Exchange 2003, Paul Robichaux
Chapter 13 "Securing Outlook"

• Monitoring and Managing Microsoft Exchange Server 2003, Mike Daugherty
Chapter 9, "Backup and recovery operations"

• Exchange Server Cookbook For Exchange Server 2003 and Exchange 2000 Server, Paul Robichaux, Missy Koslosky, Devin Ganger
Chapter 9, "Public Folder Management"

• Microsoft Exchange Server Survival Guide, Wesley H. Peace III
Chapter 3, "Server Components"

• The Definitive Guide to Windows 2000 and Exchange 2000 Security, Archie Reed, Darren Mar-Elia, and Sean Daily
Chapter 8 "Managing Exchange 2000 Post-Migration Tasks"

• Secure Messaging with Microsoft® Exchange Server 2000, Paul Robichaux
Chapter 4: Threats and Risk Assessment

• Microsoft® Exchange 2000 Server Resource Kit, Microsoft Corporation
Chapter 6 Deployment Strategies

• Configuring Exchange Server 2000, Liz Mason
Chapter 1 What’s New in Exchange 2000

• Microsoft Exchange Server in a Nutshell, Mitch Tulloch
Chapter 2 Architecture and Operation

Se alguém conhecer mais capítulos disponíveis, faça o favor de me avisar.

21 de fevereiro de 2006

Exchange Server 2003 SP2 Help

Está disponível para download o ficheiro de ajuda do Exchange Server 2003 Service Pack 2. Uma ajuda preciosa para qualquer administrador de correio electrónico.

"The Exchange Server 2003 Help can help you in the day-to-day administration of Exchange. Use this information to guide you through Exchange Server 2003 features, tasks, and administration procedures."

15 de fevereiro de 2006

[off-topic] Talento procura-se!

AD, SMS, MOM, SPS, SQL, LCS, MIIS, MOF, ISA, WSUS, estas siglas dizem-te alguma coisa?
MCP, MCSE, MCSA, MCDBA, MVP... E estas?
Se a resposta foi afirmativa nos 2 casos e estás interessado em participar num projecto aliciante na empresa portuguesa com mais competências reconhecidas pela Microsoft, envia o teu currículo para rui.j.silvaATpararedeDOTcom.
Talento, criatividade, motivação, empenho e profissionalismo são as qualidades que procuramos.
Muito trabalho, realização profissional e um ambiente descontraído são algumas das coisas que oferecemos.

14 de fevereiro de 2006

Actualização do filtro Junk E-mail do Outlook (Fevereiro 2006)

Está disponível uma nova actualização para o filtro Junk E-mail do Outlook 2003.

"This update provides the Junk E-mail Filter in Microsoft Office Outlook 2003 with a more current definition of which e-mail messages should be considered junk e-mail."

O download está disponível aqui ou através do Microsoft Update. Como é habitual, está acompanhado pelo respectivo artigo da Knowledge Base:

13 de fevereiro de 2006

Push email ganha momentum

A Microsoft aproveitou a conferência 3GSM World Congress a decorrer em Barcelona para fazer alguns anúncios sobre a sua plataforma móvel. As novidades prendem-se sobretudo com a funcionalidade direct push e-mail disponível com o SP2 do Exchange Server 2003: a Vodafone e a T-Mobile vão passar a disponibilizar este serviço aos seus clientes.

10 de fevereiro de 2006

Leitura de fim-de-semana

Mais uma bela colecção de artigos e notícias. Gostava de salientar a última notícia desta lista: numa altura em que se fala muito da solução da BlackBerry e das funcionalidades de push email do SP2 do Exchange, a Dataviz lançou um produto que é baseado no protocolo ActiveSync e que garante as mesmas funcionalidades. Este produto pode ser muito interessante na medida em que está vocacionado para dispositivos Symbian, o OS de referência dos produtos Nokia.

9 de fevereiro de 2006

Exchange Server SDK Documentation and Samples December 2005

Foi recentemente disponibilizada pela Microsoft uma actualização dos SDK's de Exchange 2000 e 2003.

The Exchange 2000/2003 Server SDK Documentation and Samples assist developers building applications for Exchange 2000 Server. This release of the SDK provides new and updated information and sample code to help you develop collaborative enterprise applications with Exchange. Included in this release are updates to the SDK documentation, tasks for implementing managed store event sinks, procedures for building managed event sink DLLs, and a task for getting free/busy status over HTTP.


Aqui ficam os links:

6 de fevereiro de 2006

Sony Ericsson licencia ActiveSync

"Microsoft Corp. today announced that Sony Ericsson has licensed the Exchange ActiveSync protocol to enable more secure, wireless direct synchronization between Microsoft Exchange Server 2003 and Sony Ericsson’s P990 and M600 phones. This solution will help provide mobile workers with anywhere access to their complete Exchange Server 2003 information, including e-mail, calendar and contacts. For organizations that have deployed Exchange Server 2003 Service Pack 2, additional mobile enhancements such as Direct Push are also supported, providing instant access to newly received e-mail messages. Both of the new phones will be available in the second quarter of 2006."

Aqui está o link para a Press-Release completa.

[off-topic] Part-time job?


Aposto que isto também acontece com todos vocês ;-)
Para a próxima vez que alguém vos pedir este tipo de ajuda já sabem qual é a resposta a dar.

2 de fevereiro de 2006

Actualização do Hardening Guide

Não foram só algumas ferramentas que foram alvo de actualizações. O "Exchange Server 2003 Security Hardening Guide" acaba de ser revisto e está agora na versão 2.2.
É um excelente documento para quem se preocupa com as questões de segurança (quem é que não se preocupa nos dias que correm?).