I have several Debian installations running on different servers that I manage. One of them is suffering from a latency that seem to manifest itself while connecting via SSH or looking up a hostname for example. The delay is typically 4-5 seconds. After that delay any operation speeds along just fine.

If I do a dig for a hostname my other computers seem to cache the result but this computer returns the information with a delay of about 1 second for each request. I'm not sure this is relevant to the problem.

I don't think it's a problem with the network the computer resides on because no other computers on the same network and IP subnet suffers from this delay.

Anyone seen this before?

Thank you.

This was resolved by removing an obsolete DNS entry in /etc/resolv.conf