Ruptime
This gives you the uptime and system load of shell servers.
debian up 7+06:45, 8 users, load 0.31, 0.37, 0.45 fedora up 7+08:05, 0 users, load 0.13, 0.13, 0.10 ftp down 19+02:10 inuvik up 7+04:48, 0 users, load 13.82, 13.79, 14.10 kali up 2+03:10, 0 users, load 0.07, 0.03, 0.00 mint up 7+08:05, 0 users, load 0.09, 0.07, 0.07 mxlinux up 7+07:50, 6 users, load 0.04, 0.08, 0.08 popos up 7+08:05, 0 users, load 0.56, 0.41, 0.32 radius up 7+06:44, 2 users, load 0.09, 0.09, 0.08 rocky8 up 7+08:04, 1 user, load 0.52, 0.51, 0.42 ubuntu up 7+04:45, 5 users, load 1.94, 2.23, 2.18 zorin up 7+08:04, 0 users, load 0.05, 0.07, 0.08