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John Bokma MexIT
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SSH client time out

Wednesday, June 29, 2011 | 0 comments

Nearly a week ago I did a fresh install of Ubuntu Lucid Lynx on my development system and I am still installing software I need for my work on it and configuring the system. Today I restored the .ssh folder from backup into my home directory. I have in the config file inside this directory the two following settings which keeps my ssh connection up even if I don't use it for a while:

ServerAliveInterval 30
ServerAliveCountMax 4

The first setting makes sure that after 30 seconds of inactivity ssh sends a message to the server. This prevents the the connection being closed. The second setting sets the number of such messages which may be sent without ssh receiving any message back from the server. If this threshold is reached ssh will disconnect from the server.

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