Reverse DNS question
Bob Smith
bob at netprt.com
Wed Feb 8 20:41:43 UTC 2006
Hey Gurus,
I'm running RH9, and have not had much problem with setting up DNS, with
one exception: getting the reverse DNS lookup to work properly from
outside of the box. I have forward and reverse dns zone files, but
I think I'm missing something. Both are listed in the named.conf file,
but when I use some of the web tools, or do a reverse lookup, it can't find
the domain. Also, some mail servers are now looking for a domain tag
in place of the in-addra.arpa basic declaration.
Any help would be appreciated.
Thanks,
-Bob
Entry in named.conf:
zone "domain.com" {
type master;
file "domain.com.zone";
};
zone "1.100.192.in-addr.arpa" {
type master;
file "1.100.192.in-addr.arpa.zone";
};
Here's a sample of the forward zone file (domain.com.zone)
------------------
$TTL 86400
domain.com. IN SOA machine.domain.com.
webmaster.machine.domain.com (
2006010902 ; serial number
28800 ; refresh interval
7200 ; retry interval
604800 ; expire
86400 ; time to live
)
;
; Name servers
;
domain.com. IN NS machine.domain.com.
domain.com. IN A 192.100.1.2
machine.domain.com. IN A 192.100.1.2
ns1.domain.com. IN CNAME machine.domain.com.
domain.com. IN MX 10 machine.domain.com.
; EOF
And here's the 1.100.192.in-addr.arpa.zone file
$TTL 86400
@ IN SOA ns1.domain.com. webmaster.machine.domain.com (
2006012102 ; serial number
28800 ; refresh interval
7200 ; retry interval
604800 ; expire
86400 ; time to live
)
@ IN NS ns1.domain.com
2 IN PTR domain.com.
; EOF
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