Binary package “rwho” in ubuntu mantic
Clients to query the rwho server
The rwho command produces output similar to who, but for all machines on
the local network. If no report has been received from a machine for 11
minutes then rwho assumes the machine is down, and does not report users
last known to be logged into that machine.
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The ruptime command gives a status line like uptime for each machine on the
local network; these are formed from packets broadcast by each host on the
network once a minute.