Setting up a DNS port redirect?

Posted by Svetlana on Super User See other posts from Super User or by Svetlana
Published on 2013-07-02T21:25:16Z Indexed on 2013/07/02 23:09 UTC
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networking

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dns

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ftp

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redirection

I have a domain using CloudFlare's DNS, I want to make it redirect to my server's IP (dynamic IP, port 21 blocked by ISP) which at the moment uses a No-IP DNS.

The current setup is that I have a subdomain as a CNAME targetting the No-IP domain, but that only works for things like the Minecraft server (which looks for a set port that isn't blocked by my ISP), and I'd like a solution that lets me redirect port 21 from the CloudFlare domain to port 2121 on the No-IP domain, or something else that points to my dynamic IP, where an FTP server is already set up and running.

I've had SRV records mentioned to me but without any further help, and it only made me more confused. Thanks in advance for the help.

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