Linux – client side work-around for a too-short auto logout from an SSH connection


I SSH from one Linux host to another Linux host that I don't administer. Its /etc/ssh/sshd_config is apparently configured to auto-logout after an interval of inactivity that is too brief for my taste (How do I enable auto-logout of Interactive ssh logins after one hour).

Is there any way to keep my SSH session alive, perhaps by sending or receiving a newline character every two minutes?

Workarounds like while true { echo ' '; sleep 120 } were common in the days of dialup modems).

FWIW, Windows' PuTTY isn't involved at all.

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