Re: question about the dns port

fom my understanig dns has both udp and tcp ports for gather information.. >From: "jackie xu" <[EMAIL PROTECTED]> >Reply-To: "jackie xu" <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: question about the dns port >Date: Tue, 14 Nov 2000 16

Re: question about the dns port

Yes. Basically dns lookups can be both port 53->53 and >1023-> 53 They can also use udp and/or TCP. I'm just a *nix hacker but, in I *think* bind 8 there is a config knob to set this behavior. ere it is from my linux machine. /* * If there is a firewall between you and nameservers

question about the dns port

i am building a access list on a router to filter the dns lookup, i am wondering whether the source and destination udp port are both domain(53) or the source port is choosed randomly when a client query the dns server, and how about the situation is when domain file transfer happens. thanks adva