Publishing Exchange 2007 may fail after installing the update "Update for Publishing Microsoft Exchange Server 2007 for ISA Server 2006"

After installing the update “Update for Publishing Microsoft Exchange  Server 2007 for ISA Server 2006″ (http://support.microsoft.com/kb/925403/en-us ), publishing Exchange 2007 using the Exchange RPC Server protocol may fail. Clients may be able to connect, but will not receive notifications for new messages. As a workaround, do the following: 1.       In ISA Server Management, click the…


Account lockout not working using UPN format to logon with forms-based authentication in ISA Server 2006

1. Introduction   Recently we received a support call from a customer saying that one of his network users was able to logon on to a secure web site published by ISA Server 2006 after typing a wrong password five times and finally typing the correct password on the sixth attempt. The account lockout policy…


When ISA Server Can’t Set Up NLB Parameters

ISA Server services use Windows Management Instrumentation (WMI) to control Network Load Balancing (NLB) parameters. It may happen that the compiled version of  NLB Managed Object Format  (MOF) files gets corrupted or incorrectly registered so that ISA Server is not able to control NLB anymore.   In this case:   ·         ISA Server is going…


Windows services may fail to start after installing ISA Server 2004 Service Pack 3

In the following scenario, the Windows operating system may not run correctly after installing ISA Server 2004 Service Pack 3: 1.       ISA Server 2004 is installed on a computer which is a member of an Active Directory domain. 2.       The Enteprise Admins group (which exists by default on the Active Directory root domain)  has been…


Windows services may fail to start after installing ISA Server 2006 Supportability Pack (KB 939455)

In the following scenario, the Windows operating system may not run correctly after installing ISA Server 2006 Supportability Pack: 1.       ISA Server 2006 is installed on a computer which is a member of an Active Directory domain. 2.       The Enteprise Admins group (which exists by default on the Active Directory root domain)  has been assigned…


Missing status in logging details panes

If you’ve installed ISA 2004 SP3 or the recently-released ISA 2006 Supportability Update, you may have noticed missing status codes: As you may guess from the Filter information field, the status should say “12217 The request was rejected by the HTTP filter. Contact your ISA Server administrator.” This happens when you’re looking at logs on…


Questionable users

You may have noticed that in certain cases, the Client Username field in the ISA firewall log has user names with question marks – (?) – after them:  Who are these questionable users? These user names appear when you have a policy rule which allows All Users, and a Firewall Client (FWC) computer passes through…


ISA Server 2006 Supportability Update

Last week, Microsoft announced the ISA Server 2006 Supportability Update package that contains some fixes and new features that were included in SP3 for ISA Server 2004, like:   ·         Improvements to the ISA Server Management console. These improvements include a new Troubleshooting node. ·         Improved log viewing functionality. ·         Additional log filter functionality. ·        …


Certificates with Multiple SAN Entries May Break ISA Server Web Publishing

What is a “SAN”?   “SAN” in this context refers to the certificate attribute “Subject Alternative Name”.  Among other uses, this attribute allows the site administrator to save money and administrative overhead by building a single certificate that lists all the sites that require a server authentication certificate.  There are several articles that deal with…


Diagnostic Improvements in ISA Server 2004 Service Pack 3

1. Introduction   Microsoft® Internet Security and Acceleration (ISA) Server 2004 with Service Pack 3 (SP3) provides improvements on the diagnostic level, which makes troubleshooting much easier. For a summary about the components of this update, see “ISA Server 2004 Service Pack 3” at the Microsoft TechNet Web site.   This article explains some of…