Add 'ServerAliveInterval' option to Tunnel Manager GUI

[Brendan Kidwell]

For some of my tunnels, I need to add the ServerAliveInterval option to my ssh command line invocation, in order to send a keepalive packet often enough to prevent the server or a gateway from dropping the connection.

Please add this option to the GUI, or add the ability to specify any arbitrary additional options to the ssh command.

My current workaround: I put all my options in ~/.ssh/config, and use the "Host" value declared in there as my "Tunnel Host" in Tunnel Manager.

[Brandon Williams (opensource-subakutty)]

Please see my plan for your bug 1127546.

I don't want to clutter the interface with "expert" level options that most people won't need. However, I plan to add a hidden config setting that will allow you to change the default command line options.

For tunnel specific settings, I think your work-around is the right way for expert users to handle this. I will consider adding a comment to the man page that makes it clear that .ssh/config can be used to impact the functionality of tunnels.

[Brandon Williams (opensource-subakutty)]

Revision 73 adds a new hidden configuration variable for advanced users. Add the following to your ~/.TunnelManager/properties.conf:

[BASE]
sshbaseargs = ['-N', '-t', '-x', '-o', 'ExitOnForwardFailure=yes', '-o', 'ServerAliveInterval=300']

This will add a default ServerAliveInterval to be used when executing ssh. If you prefer this to be server specific, add server specific settings to your ~/.ssh/config file instead.