This is for Joomla 2.5, although I suspect that it is the same for the 3.x series.

I have a server sitting behind a NAT-ing firewall, and because of that the true IP address of the server is a 192.168 address, but for users to reach it they access it as www.mydomain.com, which is set to the outside address of the firewall (not a 192.168 address).

When a user is created, the default message goes out, which includes:

`*This email contains your username and password to log in to http:// 192.168.1.100*`

This address is not reachable, and I'd prefer to have the message be:

`*This email contains your username and password to log in to <http://www.mydomain.com>*`

I could go in and change the Joomla source code to force a change to the message, but I'm assuming there is a simpler way to resolve this and I'm just suffering from not seeing the forest because I'm too close to the trees.

I'm wondering if it is a simple as putting an entry in the host table, or a PTR record in the local DNS, that will map 192.168.1.100 onto www.mydomain.com.