By default Plesk is installed to run on port 8443. Some companies have very restrictive firewalls, which might lead to clients not being able to access the Plesk control panel. I have found that most companies will happily allow a connection on port 443, the standard port for SSL connection. Luckily you can configure Plesk to listen on a second IP address for connections to port 443.
This method describled below has been tested on Plesk for Linux version 6.0.x, 7.1.x and Plesk for Windows version 7.5.x.
Step 1: Add a secondary IP address to your server. The way to do this depends on the OS and is left as an excercise to the reader. We assume that our secondary IP address is: 10.0.0.1
Step 2: Edit the
httpsd.conf file. In this file add the following entry:
Step 3: If on Linux, edit the
ssl.conf file, to only
Listen on the the main IP address’s SSL port.
Step 4: Restart the Plesk control panel
Step 5: Test the setup, by connecting to: https://10.0.0.1/
If everything was done properly the Plesk control panel will now be running on port 443.