How to change Apache port in Linux ?

Change the port number of Apache web server in Linux and Unix?

Some times we have to change the port for some services such as Apache so that they start listening on the port.

To change the port of Apache we have to edit httpd.conf which is located in /etc/httpd/conf in most Linux distributions. Open httpd.conf file and search for the word Listen. This Listen entry is to inform Apache where to listen for incoming http packets so that Apache can start processing the http packets.

Now change the port assigned to what ever port you want.
Listen <port>

Changing the port to 443 in httpd.conf file.
Listen 443

Once you edited the httpd.conf file save and exit it.

Service httpd restart

Start the Apache service to take this change live. Now try to access website with mention port.