In order to access the local server remotely, the IP address of the current network connection from the location where the server is located is required. Since this IP address usually changes on a regular basis for classic Internet connections a DNS entry is required, which is always changed when a connection is established to e.g. Fritzbox is required.
Xentral has had good experience with the following services:
http://dyn.com/remote-access/ (Paid - first register and then switch in the account to switch to paid account).
It is to register with the services with the desired domain. These are usually the instructions for the router. Sometimes the fields are called slightly differently. Basically, you have to enter a URL, a username and a password. Emergency briefly different constellations simply test.
In order to access the local server over the Internet, port forwarding is required. I.e. normally the webserver runs without encryption on port 80 and with encryption on port 443. In the router, the port forwarding can be set (please search where the word is). There you have to specify the source port, so with the port with which is accessed - so 80 or 443. And then a destination IP address and a destination port is needed. The destination IP address is of the server. And port 80 or 443. After saving it should be possible to access xentral with the configured domain. Access for maintenance or development to the server should be possible as well, the port 22 must be entered here. This can be set up in the Fritzbox as follows can be set up:
Subsequently, xentral has to be informed about the displayed MyFritz address including password and user so that xentral can help via SSH. Example of HTTP or HTTPS forwarding: