January 2008
Intermediate to advanced
544 pages
12h 3m
English
Content preview from Apple Training Series Mac OS X Server Essentials, Second Edition
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Troubleshooting
DNS issues take many forms. You may have problems related to end users who misun-
derstand your DNS hierarchy, or typographic problems in your DNS aliases. A system
administrator must be able to determine where a DNS entry is being resolved.
Isolate and Resolve DNS Issues
DNS is a complicated and subtle protocol. Its distributed nature often makes it difficult
to discern where a problem lies: Is it the client, the local DNS server, or some remote DNS
server on the Internet? Advanced DNS issues will likely require an experienced system
administrator. However, a few quick checks can help you isolate a problem.
Perform DNS Lookups
The best graphical tool for troubleshooting DNS issues is Network Utility. The real test of
any DNS change ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.