SSH sleeping
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What and where is the setting that will keep a ssh tunnel open. At the the present time, if you stop typing to a few minutes, the ssh tunnel has a delay when starting to type.
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http://forum.pfsense.org/index.php/topic,10034.0.html
The more appropriate solution is to enable SSH keepalives in your SSH clients, which will keep the state active. Leaving inactive states hanging around for long periods isn't good.