Am 10.03.2013 12:57, schrieb Austin Einter:
> I have a CentOS 6.3 machine. I am trying to setup DNS BIND setup in that
> machine. It is having a static global IP. I have done lot of reading ,
> google search and tried all possible option, but still not able to resolve
> the issue.
After reading the entire thread I am still not sure what your actual
issue is. I can only guess some name resolution is not working as expected.
Please state:
- From which machine are you trying to resolve?
- Which name are you trying to resolve?
- Which result are you expecting?
- Which result do you get?
In the meantime, a few comments on your config.
> options {
> listen-on port 53 { 127.0.0.1; 10.0.0.1; };
That doesn't look right. You said your machine has a public IP address
but you make it listen on a private IP address and localhost only.
> listen-on-v6 port 53 { ::1; };
That doesn't look right either. If your machine does IPv6, why have it
listen only on localhost? If it doesn't, why have it listen on IPv6 at all?
> allow-query { localhost; 10.0.0.1/24; 10.0.0.254/24; };
This doesn't look right at all. Neither 10.0.0.1 nor 10.0.0.254 are
compatible with a /24 netmask.
> dnssec-enable yes;
> dnssec-validation yes;
> dnssec-lookaside auto;
I don't think it's a good idea to activate DNSSEC before you have the
basics running.
> @ IN NS ns1.netcloudjobs.com.
> @ IN NS ns2.netcloudjobs.com.
>
> ns1 IN A 173.201.189.43
> ns2 IN A 173.201.189.43
It's very strange to declare two nameservers with the same address. Why
put in ns2 in the first place if it's actually the same machine as ns1?
That doesn't make sense.
> And my reverse zone file looks as
> @ IN NS ns1.netcloudjobs.com.
> @ IN NS ns2.netcloudjobs.com.
> ns1 IN A 173.201.189.43
> ns2 IN A 173.201.189.43
These entries are wrong here.
Simple explanation: A RRs belong in the forward zone, not the reverse zone.
Complex explanation: The RRs you actually create by this look like this:
ns1.189.201.173.in-addr.arpa. IN A 173.201.189.43
ns2.189.201.173.in-addr.arpa. IN A 173.201.189.43
> 43 IN PTR ns1.netcloudjobs.com.
> 44 IN PTR ns2.netcloudjobs.com.
You have a forward/reverse mismatch here. Your reverse zone resolves
173.201.189.44 to ns2.netcloudjobs.com but your forward zone resolves
that to 173.201.189.43 instead of 173.201.189.44.
> I hope I am doing something wrong with configuration. I have done this
> since more than 60 hours. Still I am not able to resolve
> ns1.netcloudjobs.com.
I am:
[ts at dns01 ~]$ host ns1.netcloudjobs.com
ns1.netcloudjobs.com has address 173.201.189.43
[ts at dns01 ~]$
Looks fine to me. So again, please state from where you are trying the
resolution, which result you expect and which result you get.
--
Tilman Schmidt
Phoenix Software GmbH
Bonn, Germany
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