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Moving a game server without losing players
The copy is never the hard part. The DNS work you do a week early, and the old box you leave running to point the way.
· 3 min read
The copy is never the hard part. The DNS work you do a week early, and the old box you leave running to point the way.
Priority, weight, port, target. The trailing dot that eats hours, the second record everyone forgets, and the TTL step before a move.
DNS cannot point at a port, which is why game server addresses are awkward. What an SRV record does, which games read one, and how to move hosts invisibly.