hosts.equiv(5) File Formats Manual hosts.equiv(5) hosts.equiv - r /etc/hosts.equiv r ( rlogin rsh rcp) . : +|[-]hostname|+@netgroup|-@netgroup [+|[-]username|+@netgroup|-@netgroup] hostname . . hostname () (+). . (-). . (FQDN) . username ( root) . . username () (+). (-). . (netgroups) @. (+). . " "! /etc/hosts.equiv root . . (PAM). PAM " " promiscuous auth PAM ( rlogin). /etc/host.equiv ~/.rhosts. : + host : host : +host . host : host + : . user host : host user host baduser: host -baduser host host: -host : -host -user . netgroup: +@netgroup netgroup: -@netgroup netgroup host : host +@netgroup netgroup baduser: +@netgroup -baduser +@netgroup : . rhosts(5), rlogind(8), rshd(8) 3 . . : . 6.18 8 2026 hosts.equiv(5)