Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have inherited some servers and I am trying to understand/improve the named.conf and zone files, I have bought the O'reilly dns and bind book. The server has some zones that aren't mentioned in the book, but the names suggest to me that they are related to standard internal processes :

zone "localdomain." IN {
type master;
file "localdomain.zone";
allow-update { none; };
};

zone "localhost." IN {
type master;
file "localhost.zone";
allow-update { none; };
};

zone "255.in-addr.arpa." IN {
type master;
file "named.broadcast";
allow-update { none; };
};

zone "0.in-addr.arpa." IN {
type master;
file "named.zero";
allow-update { none; };
};

Any thoughts as to whether these are required?

The server is running RHEL 5.

share|improve this question
add comment

1 Answer

up vote 1 down vote accepted

These entries/zones are required by RFC 1034 and represent the DNS entries for localhost and their PTR records. They are only for IPv4 and you have to add the entries/zones for IPv6 if you want to resolve AAAA records for names and their rDNS entries.

share|improve this answer
    
So if I create a slave name server should it have it's own master version of these zone files, as it would for the loopback network? –  Tim the Enchanter Aug 29 '11 at 9:05
    
Yes. Either that or replicate them, too, which would be a silly thing. –  mailq Aug 29 '11 at 9:08
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.