Re: CentOS 4 DNS Server not listening

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On 4/4/07, Michael Barnes <mbarnes@xxxxxxxxxxxx> wrote:
I installed CentOS 4 on a new box to use as a DNS server.  It is a basic
server install.

I configured named and it is all up and running fine.  It just isn't
listening on Port 53.  It also (obviously) does not respond to DNS
requests.  Requests from the machine itself are processed just fine, so
the service is working.  It just can't be used by other machines.  Not
good for a public DNS server.

I did install and turn on SELinux.  Maybe that was a mistake?  I've not
worked with SELinux before.


Sounds like the default firewall is also turned on. The SElinux
policies on this service would affect things both locally and
remotely. Since local host/dig requests work, it sounds like the
iptables is not allowing remote 53 tcp/udp packates


--
Stephen J Smoogen. -- CSIRT/Linux System Administrator
How far that little candle throws his beams! So shines a good deed
in a naughty world. = Shakespeare. "The Merchant of Venice"
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