October 1998
Beginner
512 pages
14h 22m
English
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Summary
Domain Name System (DNS) is an important user service that should be used on every system connected to the Internet. DNS is a client/server system.
The DNS client issues name queries and is implemented at the application level. It is called the resolver. The resolver is configured during the basic TCP/IP configuration. All systems run the resolver.
The server answers name queries and it runs at the operating system level. It is called the name server. The name server is configured by the DNS Manager, which defines the servers, the zones, and the database information contained in the zones.
DNS servers can be primary, secondary, and caching servers. The original domain database source files are found on the primary server. The domain database file is called a zone file. The zone file is constructed from standard resources records (RR) that are defined in RFCs. The RRs share a common structure and are used to define all DNS database information. All other servers derive the database information from the primary server. Secondary servers make complete copies of the zone information. Caching-only servers cache data one answer at a time.
The DNS server can be tested using nslookup. This test tool is included with Windows NT.
In this chapter we have seen how to configure and test domain name service. In the next chapter we look at Routing and Remote Access Service (RRAS).
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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.