Provided by: ssh-tools_1.7-2_all
NAME
ssh-ping - check if host is reachable using ssh_config
DESCRIPTION
Usage: ssh-ping [OPTIONS] [user@]hostname OPTIONS: -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. -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 ENVIRONMENT_VARIABLES: SSH_PING_NO_COLORS if set, no colors are shown (like -n) Example: SSH_PING_NO_COLORS=true ssh-ping -c 1 hostname EXIT_CODES: 0 No requests lost 1 More than 1 request lost 2 All requests lost Example: ssh-ping -q -c 1 hostname >/dev/null || ...