[unisog] DNS over TCP should we block

Valdis.Kletnieks at vt.edu Valdis.Kletnieks at vt.edu
Wed Jan 5 18:40:12 GMT 2005


On Wed, 05 Jan 2005 10:31:17 CST, Glenn Forbes Fleming Larratt said:
> Oddly enough, it works over UDP for me. I don't know but what that may
> be a protocol extension ("OPT UPDsize=4096"?):

I smell a resolver that speaks EDNS0. ;)

RFC2671 Extension Mechanisms for DNS (EDNS0). P. Vixie. August 1999.
     (Format: TXT=15257 bytes) (Status: PROPOSED STANDARD)
http://www.ietf.org/rfc/rfc2671.txt
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