Bind 9.2.2 problem?

[Kevin Darcy]

Martijn van Leeuwen wrote:

> Hello,
>
> I'm using Bind 9.2.2 on Linux 2.4.21 without any special problems except
> one.
> When starting the Bind deamon, names are resolved very quickly.
> Everything works perfect. But after some time, 8 hours, the clients are
> unable to resolve DNS queries.
>
> Example. After booting Bind, using mozilla to go to www.linux.org takes
> a second to resolve and voila. But after 8 hours it takes 15 reloads
> before www.linux.org is resolved.
>
> Note;
> It forwards queries it cannot resolve to external DNS servers.
> These work fine, as they are my ISP's.
> I have the default TTL and no special options in the named.conf.

Suggestions:

1) Turn on debugging and/or dump the contents of the cache when you're
having the problem to try and pinpoint the problem. Fire up a sniffer to
see if BIND is actually sending out query packets in an effort to resolve
the name that's giving you problems, e.g. www.linux.org.

2) Check your resource usage on the box. Maybe BIND is hitting some sort of
resource limit over time. Nameservers tend to be memory-hungry.


- Kevin