rpc.rusersd - logged in users server
/usr/sbin/rpc.rusersd
rpc.rusersd is a server which returns information about users currently
logged in to the system.
The currently logged in users are queried using the rusers(1) command.
The rpc.rusersd daemon is normally invoked by inetd(8).
rpc.rusersd uses an RPC protocol defined in /usr/include/rpcsvc/rusers.x.
rusers(1), who(1), w(1), inetd(8)