Intermittent outages

Kevin Darcy kcd at
Tue Oct 2 21:25:59 UTC 2001

John Anderson wrote:

> Hi,
> I'm getting this message in my logs, and I'm not sure what it means:
> localhost named[468]: sysquery: sendto([].53): Network is
> unreachable

Named is just reporting what it gets from the lower levels of the
networking code. Looks like you have a connectivity problem of some sort.

> (Also, the IP address changes, I've seen and

Those are addresses of a couple of the Internet root nameservers. You're
apparently having problems talking to them.

> I'm running Bind 8.2.2 on RedHat Linux 6.2.

You should upgrade immediately. That version of BIND has horrible security

> I've also seen some intermittent downtime on the zones I host on that
> server, named is still running, but maybe one of my domain names is
> unaccessible, or maybe is not available, yet
> is.
> I haven't been able to pin down a message in the logs that correlate
> with these mysterious outages, so I'm not sure what I can tell you about
> them.

These problems may be indirectly related to your connectivity problem. I'd
attack that one first.

- Kevin

More information about the bind-users mailing list