Search Results for: Firewall as a service

Using routing rules.

Routing rules are part of the Network Configuration module of ISA and enable you perform various operations described below when configured correctly. This type of tool is very useful in the majority of organizations, especially when you need specific URL’s or web requests redirected to an upstream ISA server or to a server in a different physical location, this maybe at one of your company branches which may lie closer to the web resource, speeding up internet access.

Allowing Intradomain Communications Through an ISA Server.

Of all the mysteries confronted by the ISA Server administrator, perhaps the most difficult one to solve is how to configure intradomain communications across the ISA Server. For over a year, it has been consensus opinion that intradomain communications could not take place across an ISA Server because of problem with dynamic protocol/port assignments, Kerberos, and a variety of other "hand-waving" explanations. I admit to being part of this hand-wavers crowd because I didn’t know precisely the cause of intradomain communications failure across an ISA Server.

Installing ISA Server on a Domain Controller.

One particularly vexing problem that comes up often on the ISAserver.org mailing list and Web boards is how to deal with installing ISA Server on a domain controller (DC). Although its generally a bad idea from a security standpoint to install ISA Server on a DC, people stuck with Small Business Server (SBS) apparently have to put all of their eggs in one basket.

Understanding Site and content rules.

Site and content rules are an integral part of ISA server, and require a good understanding in order to configure ISA server to perform the functions described below. These rules are a very powerful part of ISA and mastering them will help you to get the results required by your organization.

Making Outlook Express Work with ISA Server Quick Start Guide.

I don’t think a day goes by without someone asking either how to configure ISA Server to allow Outlook Express to work, or how fix a problem with ISA Server because Outlook Express isn’t working properly. Instead of answering this same question over and over again, I’ve decided to put together this article on how to configure ISA Server to work with Outlook Express, or any other email client that needs access to common email protocols.

Fix the Windows Update Problem for Web Proxy Clients.

Prior to upgrading to Windows XP Professional, I used Windows 2000 Professional on my production workstations. I never used the Windows Update feature when I ran the Windows 2000 machines, because sometimes the updates had a bad side effect of whacking the Windows 2000 box. The fixing was always problematic, and I never found a way that was cheap, easy and reliable to get back to where I was before the Update broke the machine.

Fixing the Symantec LiveUpdate Problem.

Some of you might have noticed that you can’t update your virus definitions using the Norton Antivirus LiveUpdate feature after installing ISA Server. I ran into this one myself a few weeks ago. After a bit of head banging, I found a configuration that should work for everyone.

Understanding how ISA server clients use DNS.

This tutorial will outline and reveal how the ISA server clients achieve DNS resolution. It will give you a better understanding on how each ISA server client interoperates with ISA server’s DNS or with the DNS servers directly, and will also assist you in choosing the correct client for the job. There are advantages and disadvantages in using each client I will highlight these and also propose a work around solution where there are downfalls.

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