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This file (pri.example.com) is the standard sample zone file used throughout this Chapter and has the following characteristics. NOTE: Both externally visible (public) services and internal hosts are defined in this file.
The Resource Records (RRs) are all defined separately and clicking on any highlighted RR type will take you to a detailed description.
$TTL 86400 ; 24 hours could have been written as 24h or 1d ; $TTL used for all RRs without explicit TTL value $ORIGIN example.com. @ 1D IN SOA ns1.example.com. hostmaster.example.com. ( 2002022401 ; serial 3H ; refresh 15 ; retry 1w ; expire 3h ; minimum ) IN NS ns1.example.com. ; in the domain IN NS ns2.smokeyjoe.com. ; external to domain IN MX 10 mail.another.com. ; external mail provider ; server host definitions ns1 IN A 192.168.0.1 ;name server definition www IN A 192.168.0.2 ;web server definition ftp IN CNAME www.example.com. ;ftp server definition ; non server domain hosts bill IN A 192.168.0.3 fred IN A 192.168.0.4
An alternate file including only hosts externally visible to the domain is also provided. The CNAME Resource Record allow the 'www' server to provide additional services. The associated reverse map zone file is provided.
Problems, comments, suggestions, corrections (including broken links) or something to add? Please take the time from a busy life to 'mail us' (at top of screen), the webmaster (below) or info-support at zytrax. You will have a warm inner glow for the rest of the day.
3 reverse map
4 dns types
5 install bind
8 dns records
12 bind api's
13 dns security
bits & bytes
notes & tips
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