1 root::0: 2 other::1:root 3 bin::2:root,daemon 4 sys::3:root,bin,adm 5 adm::4:root,daemon 6 uucp::5:root 7 mail::6:root 8 tty::7:root,adm 9 lp::8:root,adm 10 nuucp::9:root 11 staff::10: 12 daemon::12:root 13 sysadmin::14: 14 games::20: 15 smmsp::25: 16 gdm::50: 17 xvm::60: 18 mysql::70: 19 webservd::80: 20 postgres::90: 21 nobody::60001: 22 noaccess::60002: 23 nogroup::65534: 24