Hi All, I am using openssh on cygwin along with ssh-tunnel (a pearl script that uses IO and IO::Select) to tunnel through a firewall in order to gain access to my desktop at home. I have noticed that recently the behavior has changed and my connection is broken after 3 seconds of inactivity. How do I, a) find out what is causing the connection to be broken and/or b) keep the connection alive. As long as I am actively feeding commands at the shell prompt the connection stays alive. Tia, Mike