From the category archives:
Microsoft have released ISA Server 2004 Service Pack 3, which includes support for Exchange Server 2007 and updated log viewer functionality: Internet Security and Acceleration (ISA) Server 2004 SP3 provides the latest updates to ISA Server 2004 Enterprise Edition, with increased security, new troubleshooting tools, and improved log viewer functionality. This service pack also adds [...]
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Here’s an easy way to crash the Microsoft Firewall service in ISA Server – create a server publishing rule that allows all high ports inbound to an internal NATed IP address. Now this is something that it is not normally done and I don’t think that ISA Server was designed to work this way. I [...]
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ISAServer.org has an excellent four part tutorial on using LDAP to pre-authenticate Outlook Web Access. You can find them here: Â LDAP Pre-authentication with ISA 2006 Firewalls: Using LDAP to Pre-authenticate OWA Access (Part 1) Â LDAP Pre-authentication with ISA 2006 Firewalls: Using LDAP to Pre-authenticate OWA Access (Part 2) Â LDAP Pre-authentication with ISA 2006 Firewalls: Using [...]
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Now that Microsoft have released ISA Server 2006, we have more authentication options available to us. This includes the ability to add two-factor authentication solutions to the existing forms based authentication, traditionally used to authentication against Active Directory only. I have a previous post on how to protect Outlook Web Access with RSA SecurID, which [...]
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I upgraded our firewall a couple of days ago from ISA Server 2004 to ISA Server 2006, which went fairly smoothly with the actual setup routine only taking about 5 minutes to complete. However, after the upgrade there were a couple of items required some configuration changes: 1. Published Public Web Sites Access to unauthenticated [...]
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Just in the process of upgrading our firewall from ISA Server 2004 to ISA Server 2006. Before I did this, though, I wanted to grab an export of my current config. However toward the end of the export, the management console would report this error: 0xc0040357 The Server referenced by Array CLAFW does not exist. [...]
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Another excellent document for protecting Exchange with ISA Server Application Layer Firewall protection for Exchange Server 2003 with ISA Server 2004 And reinforcing a post from last month: “We do not recommend placing an Exchange front-end server in a perimeter network because it is not designed to be a security context, and it requires extensive connectivity to [...]
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Found this via Stanislas Quastana’s blog: ISA Client Spy. Free tools for ISA Server are great and this one, should be an excellent troubleshooting tool. “ISA Client Spy is a FREE utility designed specifically for use with Microsoft ISA Server 2004. With ISA Spy, you can keep an eye on your user’s browsing activity in real time. ISA [...]
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