Is it possible for DNS to direct traffic to different ports?

Posted by Giffyguy on Server Fault See other posts from Server Fault or by Giffyguy
Published on 2010-05-15T17:30:06Z Indexed on 2010/05/15 17:34 UTC
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dns

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port

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ftp

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cname

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alias

Right now I have a DNS CNAME record that makes ftp.angryoctopus.net an alias for the actual FTP URL domain, which is angryoctopus.net:65021

The goal is that a client should be able to type ftp://ftp.angryoctopus.net/ in their browser's address bar, and be directed to Angry Octopus's FTP site on my server - which is hosted at port 65021.

Of course the hostname won't resolve.

Is it possible to accomplish this type of alias somehow, or am I just beating a dead horse? This reminds me of DynDNS, which I used a few years ago for something-or-other. How does DynDNS spoof ports like that, and can I immitate it to make this work?

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