How to restrict all services to single domain in Ubuntu?

Posted by harold on Server Fault See other posts from Server Fault or by harold
Published on 2014-06-08T19:29:54Z Indexed on 2014/06/08 21:27 UTC
Read the original article Hit count: 264

Filed under:

linux

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ubuntu

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networking

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domain

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Services

Someone has pointed an unknown domain to my server's IP address likely via A records. I would like to reject access to ALL services (httpd, ssh, mail, etc.) from this domain and only allow requests from my domain. I want to make it so when I connect to that domain it's completely rejected from my server. I can disallow access from HTTP by changing my web server settings, but I want to do this for every single type of connection.

How can I do this?

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