ctrl+s locks up ssh

Corey Smith corsmith at gmail.com
Fri May 12 05:05:48 EST 2006

On 5/11/06, Enrico Weigelt <weigelt at metux.de> wrote:
> I've noticed an problem with openssh on GNU/Linux:
> pressing ctrl+s locks up the ssh client. Only killing it helps.
> Is this problem already known ?

That is called software flow-control AKA Xon/Xoff.

Ctrl-s = Xoff (stops the flow)
Ctrl-q = Xon (resumes the flow)

This is a feature of your terminal and not a bug in ssh.

-Corey Smith

More information about the openssh-unix-dev mailing list