nanog mailing list archives

Re: broken DNS proxying at public wireless hotspots


From: Joe Abley <jabley () ca afilias info>
Date: Sun, 4 Feb 2007 01:30:58 -0500



On 4-Feb-2007, at 00:58, Trent Lloyd wrote:

The flaw here is that DNS operates over 53(UDP), last time I checked SSH
doesn't do UDP port forwarding?

In the interests of dispelling a common myth, DNS operates over both 53/udp and 53/tcp. However, given that a substantial portion of most clients' queries will likely use UDP transport, your fundamental point stands.


Joe



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