While rewriting my packet filter rules for more strictness, I discovered
that my internal DNS server sends requests to the firewall DNS with both
source and destination ports set to UDP 53. Isn't that a little unusual?
If I allow packets with destination=UDP 53, can I get into trouble?
Senior Information Specialist
Missouri Highway and Transportation Department
P.O. Box 270
Jefferson City MO 65102
Re: DNS port 53
From: "Daniel O'Callaghan" <danny @