# IPv4
127.0.0.1 localhost.localdomain localhost
<public IPv4 address> <your hostname>
#
# IPv6
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
<public IPv6 address> <your hostname>