I am unable to find any documentation regarding the ‘Change IP Address’ page located in the VirtualMin > Manage Virtual Server menu. The right-hand side regarding the ports is unclear to me.
I’m using Redis object cache and so need to put, as far as I understand, the port 8080 in the New HTTP Port text box. What, therefore, is the Port for use in HTTP URLs and when is it used?
I know that when I have to update the SSL certificate, I need to change the port back to 80 in the New HTTP Port text box or else the Let’s Encrypt process fails. Once the certificate is issued or renewed, I need to change it back to port 8080. Is there any way to streamline this process on my end?
I have to say I’m enjoying Virtualmin/Webmin and appreciate the hard work you all perform on it!
And, to answer this: It is used when you have changed the IP address of your server and you want to update the Virtual Server to use it (though there is a bulk change form that’s more convenient in that case). It can also be used to switch to a dedicated IP address or similar, if you’ve added an IP to the system (but dedicated IPs are not really necessary or useful in modern deployments). It can also be used to configure Apache to answer requests for a specific domain on different ports (but only if you’ve also configured Apache to listen on those other ports), but you shouldn’t do that in any common case. 80 and 443 are the HTTP and HTTPS ports, and you should pretty much always leave that alone.
