February 2011
Intermediate to advanced
692 pages
19h 34m
English
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Chapter 2. Zone Files and Resource Records
A zone file describes or translates a domain name into the characteristics, hosts, and services provided by the domain in a way that can be used by DNS software. Badly configured zone files can make a domain unreachable, send e-mail to the wrong location, or even redirect customers to a competitor's web site. Obviously, these are serious consequences, but it can get worse. Answers to queries from a badly configured DNS may be cached (or stored) by other DNS systems for hours, days, or even weeks. It can take a long time for the effects of an error to be rectified—your customers or employees can be left without service or access for prolonged periods. Correctly configured zone files are essential to the ...
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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.
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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.