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 :: Mailing Lists

[ILUG] Why do my ssh sessions drop after about 15 mins?

[ILUG] Why do my ssh sessions drop after about 15 mins?

Justin Mason jm at jmason.org
Fri Feb 2 15:16:59 GMT 2007


John A. Kinsella writes:
> Hi.
> I'm running Ubuntu Edgy Edge on both work & home desktop machines.
> 
> I ssh in from home to work and all is well.
> 
> Except that after about 15 mins the connection drops.
> 
> Presumably I need to change a setting in  /etc/ssh/sshd_config
> on work box?

It's probably a NAT killing the "idle" connection.
Throw this into ~/.ssh/config on the client machine:

  serveraliveinterval 300
  serveralivecountmax 10


see ssh_config(5).

also, I seem to recall changes made to ssh to improve this,
so an upgrade (of the client side) could help.

--j.



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