Named server fails to respond
barmar at alum.mit.edu
Thu Feb 23 04:46:15 UTC 2006
In article <dtj3ag$2dh4$1 at sf1.isc.org>, etieseler at gmail.com wrote:
> Hello list,
> I have been getting stumped with my current issue. I have a BIND
> (9.2.4) server running on Redhat EL3.0. It works most of the time, but
> every now and again it fails to handle DNS requests. While this is
> happening I issue the following command on the DNS server:
> #dig -t ANY maps4.rapmls.com @127.0.01
> ;; global options: printcmd
> ;; connection timed out; no servers could be reached
> I check with netstat and port 53 is listening on both the loopback and
> the IP address of the server for both UPD and TCP.
> I have disabled iptables and even went as far as to remove it entirely,
> and the behavior has not changed.
> After a few minutes it starts to handle requests again. I am stumped!
> The load on the server is minimal, looking through the log files with
> debug level 3 does not reveal anything obvious (What should I look
> for?) This is an internal DNS server that does recursion. It recieves
> no requests from the Internet. I have setup DNS on another server but
> would like to get this resolved. Any thoughts? I will be happy to
> provide further information if needed.
When you turn on tracing, what do you see while it's not responding?
Barry Margolin, barmar at alum.mit.edu
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