This zone file maps hosts (services) to geographically local IP addresses and provides a form of 'anycast' service. Mail and DNS (ns1) are not geographically mapped.
The Resource Records are all defined separately.
$TTL 86400 ; 24 hours could have been written as 24h or 1d ;used for all queries that originate in mordor $ORIGIN example.com. @ 1D IN SOA ns1.example.com. hostmaster.example.com. ( 2009082600 ; 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.example.com. ; mail service ; server host definitions ns1 IN A 192.168.0.1 ;no geographic map mail IN A 192.168.1.1 ;no geographic map www IN A 172.16.1.1 ;geographic map
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3 reverse map
4 dns types
5 install bind
8 zone records
12 bind api's
13 dns security
bits & bytes
notes & tips
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