tcpdump is an excellent place to start. Certain ssh clients talking
to certain ssh servers have, in my experience, resulted in funny stuff
- window size going to zero and staying there - that is really best
detected via tcpdump. Interference from firewall rules can be easily
inferred this way,
On Mon, Nov 13, 2000 at 09:51:26PM -0500, Rod Taylor wrote:
> Needless to say, it's something weird with IPF, Nat, and SSH on both
> ends of the connection through the previous two... Removing either IPF
> or Nat does the trick, as does making one connection non-freebsd (or
> atleast non-openssh).
