telnet and ssh: Connection closed by foreign host

I started telnetd and sshd on my ubuntu server. When I use telnet or
putty to connect to it, the connection broken after a while. It seems
there is a time out configured.
Does anyone have any idea on how to disable the time out and keep the
telnet or ssh session alive?

(E-Mail Removed) wrote:
> I started telnetd and sshd on my ubuntu server. When I use telnet or
> putty to connect to it, the connection broken after a while. It seems
> there is a time out configured.
> Does anyone have any idea on how to disable the time out and keep the
> telnet or ssh session alive?
>
There isn't a time out on sshd, at least by default. You probably have a
firewall somewhere in your network that times you out.

Robert

Robert Harris <(E-Mail Removed)> writes:

> (E-Mail Removed) wrote:
> > I started telnetd and sshd on my ubuntu server. When I use telnet or
> > putty to connect to it, the connection broken after a while. It seems
> > there is a time out configured.
> > Does anyone have any idea on how to disable the time out and keep the
> > telnet or ssh session alive?
> >
> There isn't a time out on sshd, at least by default. You probably have a
> firewall somewhere in your network that times you out.

So go set the ClientAliveInterval in /etc/ssh/sshd_config to something
smaller than the timeout.

Scott
--
Scott Hemphill (E-Mail Removed)
"This isn't flying. This is falling, with style." -- Buzz Lightyear

"Scott Hemphill" wrote
> Robert Harris writes:
> > (E-Mail Removed) wrote:
> > > I started telnetd and sshd on my ubuntu server. When I use telnet or
> > > putty to connect to it, the connection broken after a while. It seems
> > > there is a time out configured.
> > > Does anyone have any idea on how to disable the time out and keep the
> > > telnet or ssh session alive?
> > >
> > There isn't a time out on sshd, at least by default. You probably have a
> > firewall somewhere in your network that times you out.
>
> So go set the ClientAliveInterval in /etc/ssh/sshd_config to something
> smaller than the timeout.
>
> Scott
And see if your putty.exe has a 'send keepalives' checkbox in the menues.