CNAME
Définir un domaine comme étant l'alias d'un autre
blog.example. 86400 IN CNAME host.example.
www.example. 86400 IN CNAME host.example.
play.example. 86400 IN CNAME host.example.
host.example. 10800 IN AAAA 2001:db8::3
host.example. 10800 IN A 203.0.113.42