I have to access the company NextCloud webserver configuration file to change the URL.
But I’m not sure what to do. How should I access webserver configuration file?
you probably need to get sudo access to the webserver terminal or gui.
then depending on how NC is setup the location of config.php varies.
i would start at /var/www see if there is a nextcloud folder. or /etc/apache2/sites-enabled/
else I try docker ps
your question is very vague