On 27 February 2018 at 12:17, Kip Warner <kip@xxxxxxxxxxxxxx> wrote:
[...]
> I am having problems with already established connections to a remote
> server
What platforms are the client and server?
> timing out after a few minutes. I connect either over ssh or via
> rsync tunnelled over the former.
>
> On the client side eventually I just see a whole pile of messages like
> this, but no rsync traffic appears occurring:
>
> debug1: client_input_channel_req: channel 0 rtype keepalive@ope
> nssh.com reply 1
This sounds like some firewall or network device is aggressively
timing out TCP connections. I suggest looking at the output of
netstat at both ends when it starts sending the keepalive packets and
finding the line corresponding to the SSH connection. If the "Send-Q"
columns are non-zero and keep increasing it indicates that TCP is not
getting acks for the packets it's sending. If that's the case you
have a broken network or firewall of some kind.
--
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new)
Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
_______________________________________________
openssh-unix-dev mailing list
openssh-unix-dev@xxxxxxxxxxx
https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
