I installed NextCloud on Ubuntu 18 using the guide at
https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-nextcloud-on-ubuntu-18-04

Now I want to install fail2ban. The installation went OK and I can see fail2ban jail for sshd. The fail2ban log files show activity.

Questions:
If I am running NextCloud do I need to configure fail2ban to handle apache log (by enabling apache-auth) ?

Does the NetCloud login page failures get logged to apache error_log?

If yes, how do I configure fail2ban to use the correct log file. Since apache was installed via snap its log file location is at a different path.

Sorry, I am new to this so I may be asking something obvious or may not have provided sufficient information. Do let me know if I should add any more information.