February 2011
Intermediate to advanced
692 pages
19h 34m
English
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Chapter 9. DNS Diagnostics and Tools
Diagnosing DNS problems can be complex, made so by its interaction with other DNS systems. A DNS problem may originate locally or anywhere in the chain of name servers that provide the response to a query. Finding the location of the problem is, depending on your outlook, either the bane or the challenge of a DNS administrator's life. This chapter is divided into two parts. The first describes a number of tools that may be used to verify, support, or interrogate DNS systems—DNS utilities. The second part looks at diagnosing DNS systems, in some cases using the tools described and in other cases using methods such as log inspection and invoking debug levels to increase reporting.
DNS Utilities
There are a number ...
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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.
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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.