Jim Harrison

14120 Errors; Discussion and Solution

THe dreaded 14120 error; it's caused much grief in the ISA Server community. What is it and what can be done about it? All theses and more will be answered in tomorrow's Jerry Springer show, but for now, you can read this article…

DNS for ISA Server.

Want some more fun? Let’s look at the ISA scenario. What many folks will do is place DNS resolver IPs in both NICs, ISP in the external, local in the internal. While this seems to make sense, it’s actually very inefficient and you can actually cause huge timeouts this way. Remember that TCP/IP will choose the route for a given packet based on its destination, not where it found the data. This means that DNS entries are not really NIC-specific, it’s just more meaningful to the person entering them.

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