Obsolete:Internal DNS proposal
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Note: This page was created as a temporary pastebin and probably doesn't make any sense without its proper context
wikimedia.org
i.wikimedia.org ...zwinger.i.wikimedia.org 10.0.0.4 ...albert.i.wikimedia.org 10.0.0.3 svc.i.wikimedia.org ...ns.svc.i.wikimedia.org 10.0.1.1 ...db-master.svc.i.wikimedia.org 10.0.1.2 ...mail.svc.i.wikimedia.org 10.0.1.3
DNS for i.wikimedia.org is slaved between 3-4 machines using a service IP, 10.0.1.X. failover can be done via e.g.
shouldn't be noticably less reliable than /etc/hosts, and much easier to manage. network 10.0.1.X can be allocate for service IPs.