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Learn more about the SSH Authman service.

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When a network session is transiting a firewall, the firewall may close sessions it deems idle - ones which have not sent packets for some time. At WaterlooUWaterloo, the default firewall configurations have a 30 minute timeout for TCP sessions - long enough for most purposes, but people with SSH sessions may find that their connection is terminated earlier than they would like. This can be fixed with a configuration change on the client side, which will cause it to send a "keepalive" packet at fixed intervals. IST recommends a 15 minute keepalive.

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  • Edit your personal SSH configuration file (usually $HOME/.ssh/config) and add or modify the relevant line(s).

  • If you are running a version of OpenSSH older than 3.8, you should upgrade to a more recent version.

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Need

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help?

Contact the IST Service Desk

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online or 519-888-4567 ext. 44357.

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