My local dns is not resolving particularly one host name .

call_krushna · 05-20-2012, 08:02 AM

Hi Team,

I have configured dns server(Ubuntu 12.04) in network and added number of host A records.Everything is working fine except It is not resolving archive.ubuntu.com .Because of this,I am not able to install any application using apt-get install <apps name> .Once I remove my local dns entry , it is working fine .

Any help is highly helpful.

Thanks in advance .

Zetec · 05-20-2012, 08:37 AM

Are you using DNS forwarders for anything that isn't local?

call_krushna · 05-20-2012, 08:42 AM

yes.
10.0.0.2
4.2.2.2

Zetec · 05-20-2012, 08:44 AM

Is 10.0.0.2 your local server IP?

call_krushna · 05-20-2012, 08:49 AM

yes its secondary dns server in ec2 environment.

1.)10.0.1.133 (Local DNS server )
2.)10.0.0.2 (EC2 DNS server)

In every instance

#cat /etc/resolv.conf
10.0.1.133
10.0.0.2

Please suggest me for any modification.

call_krushna · 05-21-2012, 11:34 PM

Quote:

Originally Posted by call_krushna

yes its secondary dns server in ec2 environment.

1.)10.0.1.133 (Local DNS server )
2.)10.0.0.2 (EC2 DNS server)

In every instance

#cat /etc/resolv.conf
10.0.1.133
10.0.0.2

Please suggest me for any modification.

@Zetec ,Please suggent on this .

fogpipe · 05-22-2012, 12:20 AM

You could always just drop the ip in your hosts file as an interim fix.
Isnt the syntax of resolv.conf supposed to be:
"nameserver xxx.xxx.xxx.xxx."?
Can you tail the log file on the dns server? mine logs errors to /var/log/messages.

Zetec · 05-23-2012, 07:29 AM

Try 4.4.4.4 and 4.4.2.2 in your resolv.conf. Really you should setup DNS Forwarders in bind and have resolv.conf point to local DNS servers.

http://www.akadia.com/services/howto_forward_dns.html