Aug 27 2010

update to autossh – or how ServerAliveInterval makes this unnecessary

I had a couple of comments on my earlier post about autossh which suggested that I should look at alternative mechanisms for keeping my ssh tunnel up. Rob in particular suggested that setting “ServerAliveInterval” should work. Oddly I had tried this in the past whilst trying out various configuration options and I swear it didn’t work for me. But since the autossh mechanism felt inelegant I thought I’d revisit my ssh_config file as Rob suggested. And indeed setting ServerAliveInterval to 300 (i.e. 5 minutes) solved my tunnel drop problem. I’d guess that other intervals of less than 1 hour would equally work but I haven’t checked.

I have no idea why my earlier experiments failed.

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