AS
210.хх.хх.158 cloud.mydomain.net cloud
[...]
192.168.1.20 mail.mydomain.net
192.168.1.9 nextcloud.mydomain.net
[...]
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters