NAME¶

ssh-ping - check if host is reachable using ssh_config

SYNOPSIS¶

ssh-ping [OPTIONS] [user@]hostname

check if host is reachable using ssh_config

-4: Use IPv4 only
-6: Use IPv6 only
-c count: Stop after sending <count> request packets
-C: Connect as soon as the host responds
and try reconnecting after a SSH session ends (e.g. rebooting).
Useful also for IDRAC, IPMI, ILO devices, Switches, etc...
which don't have a full shell environment.
CTRL+C stops reconnect attempts.
-E: Exit immediately after first successful ping
(can be used to trigger a follow up task like rsync)
-F configfile: Specifies an alternative per-user configuration file.
If a configuration file is given on the command line,
the system-wide configuration file ( /etc/ssh/ssh_config ) will be ignored.
The default for the per-user configuration file is ~/.ssh/config.
-h: Show this message
-i interval: Wait <interval> seconds between sending each request.
The default is 1 second.
-l user: Try login with <user> as username. The default is the current value of $USER.
-D: Print timestamp (unix time + microseconds as in gettimeofday) before each line
-H: Print timestamp (human readable) before each line
-W timeout: Time to wait for a response, in seconds
-p port: Port to connect to on the remote host.
This can be specified on a per-host basis in the configuration file.
-q: Quiet output.
Nothing is displayed except the summary lines at startup time and when finished
-n: No colors.
(e.g. for black on white terminals)
-v: Verbose output
--version: show version information

Ubuntu (and maybe other distros) already ship
shell completions for ssh which can be used:

March 2024

SSH-TOOLS