Apache2 – Change HTTPS Port to different number

Change the default https port in the file ports.conf:

vim /etc/apache2/ports.conf

#No line above for https! like Listen 127.0.0.1:9002 this is wrong

<IfModule ssl_module>
        Listen 9002
</IfModule>

<IfModule mod_gnutls.c>
        Listen 9002
</IfModule>

a2enmod ssl

configure the new https port in your apache2 vhost:

<IfModule mod_ssl.c>
        <VirtualHost *:9002>

restart apache2:

systemctl restart apache2