Hello,

Indeed running two services on the same port at the same time is not possible.

What you could do is change Apache’s port to another non-default port like 8080 or example. That way the two services would be able to run at the same time.

To change Apache’s port open your Apache configuration file and edit the Listen 80 part to Listen 8080. Then run a config test:

apachectl -t

If you get a Syntax OK then restart Apache:

systemctl restart apache2

After that check if Apache is actually listening on the new port:

netstat -plant | grep -i apache2

Finally you should be able to run the nextcloud service on port 80.

Hope that this helps!
Regards,
Bobby