FTP Exception

Hello all, new here and new to Astaro. I am trying to set up an exception to allow a user to access an FTP site through his browser. My predecessor had already given access, but the site changed to a different server. The user can still access the old server but needs to get to the new one. I can not find a rule or exception anywhere that I can change to point to the new server. Can anyone send me in the right direction?

Thanks.