amstafff, Не, у тебя в hosts правила правильно прописаны
root@adult:~# cat /etc/hosts
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
127.0.0.1 localhost.localdomain localhost
# Auto-generated hostname. Please do not remove this comment.
85.93.3.108 adult ip6-loopback ip6-localhost
::1 localhost
root@adult:~# cat /etc/hostname
adult