ssh-ping(1) on Linux
The text 790acc392126, as Debian 12 (Bookworm) shipped it.
check if host is reachable using ssh_config
Flags it lists
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-4 -
-6 -
-C -
-D -
-F -
-H -
-W -
-c -
-h -
-i -
-l -
-n -
-p -
-q -
-v