Finger (79)
https://hacktricks.boitatech.com.br/pentesting/pentesting-finger
perl finger-user-enum.pl -U /usr/share/seclists/Usernames/Names/names.txt -t 192.168.171.140 | grep -v 'is not known'
perl finger-user-enum.pl -U /usr/share/seclists/Usernames/xato-net-10-million-usernames.txt -t 192.168.171.140 | grep -v 'is not known'