reverse DNS in LINUX
Hi,
I was having problem with setting up reverse DNS entries for my IP address.
the IP provider has agreed to relay their reverse query to 2 nameserver ns1.domain.com and ns2.domain.com
these 2 name servers are INITIALLY located at 1 IP 64.62.250.96, However, I recently changed them to other locations: ns1.domain.com --> ip1, and ns2.domain.com --> ip2. I also have 2 dns servers at those 2 ips, running BIND.
What should I configure for BIND in order to handle reverse look up?
here is my zone file:
xxx.xxx.xxx.in-addr.arpa. IN SOA ns1.domain.com. admin@domain.net. (
1999040701 ;Serial number
10800 ;Refresh
3600 ;Retry
604800 ;Expire
86400) ;Minimum TTL
@ IN NS ns1.domain.com.
@ IN NS ns2.domain.com.
xxx IN PTR cpanel.domain.net.
are those looking correct?. Because, PTR looking still fails at this time ;(
thanks!!!
I was having problem with setting up reverse DNS entries for my IP address.
the IP provider has agreed to relay their reverse query to 2 nameserver ns1.domain.com and ns2.domain.com
these 2 name servers are INITIALLY located at 1 IP 64.62.250.96, However, I recently changed them to other locations: ns1.domain.com --> ip1, and ns2.domain.com --> ip2. I also have 2 dns servers at those 2 ips, running BIND.
What should I configure for BIND in order to handle reverse look up?
here is my zone file:
xxx.xxx.xxx.in-addr.arpa. IN SOA ns1.domain.com. admin@domain.net. (
1999040701 ;Serial number
10800 ;Refresh
3600 ;Retry
604800 ;Expire
86400) ;Minimum TTL
@ IN NS ns1.domain.com.
@ IN NS ns2.domain.com.
xxx IN PTR cpanel.domain.net.
are those looking correct?. Because, PTR looking still fails at this time ;(
thanks!!!
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Thats really a question that only your ISP can answer. Do they support classless reverse delegation? If so, just ask them to delegate the reverse to your dns servers.
ASKER
thanks!
the dnsstuff reverse query still showed that the ns1.domain,net still resides that the old IP which is not correct because I have made changes days before.
Is it problem caused by DNS cache? it's been 48 hours already
the dnsstuff reverse query still showed that the ns1.domain,net still resides that the old IP which is not correct because I have made changes days before.
Is it problem caused by DNS cache? it's been 48 hours already
ASKER
thanks again!! it finally works
ASKER
after using "nslookup xxx.xxx.xxx ns1.domain.net" (right at the DNS itself), i got this
xxx.xxx.xxx.in-addr.arpa name = cpanel.domain.net.
the bind returns ok
Oct 3 15:10:04 ns1 named[2373]: no IPv6 interfaces found
Oct 3 15:10:04 ns1 named: named reload succeeded
i'd like have reverse record for xxx.xxx.xxx.xxx. I've requested the PROVIDER for that IP to point their PTR query to where my dns resides (technically, another IP provider). Will it work that way?
thanks!