On 15 Jan 10:06, Richard Lewis wrote:
Any suggestions what else could be wrong? Or is it really that all the servers need to have 'UseDNS no'? And if so, what has changed about them all to make this necessary? Or could it be something to do with my network set up?
If UseDNS no fixes it it suggests that you've got broken reverse DNS.
Out of interest, are the hosts that you're trying to connect to over IPv4 or IPv6? And have you got working reverse DNS on the IP that you're connecting from? The ssh daemon by default does a reverse lookup on the IP, and so will stall if there isn't one for a bit.
Thanks,