Resetting a lost admin password
The normal ways to recover a lost password are:
Click the password reset link on the login screen; this appears after a failed login attempt. This works only if you have entered your email address on your Personal page in the Nextcloud Web interface, so that the Nextcloud server can email a reset link to you.
Ask another Nextcloud server admin to reset it for you.
If neither of these is an option, then you have a third option, and that is
occ command. See Using the occ command to
learn more about using the
$ sudo -u www-data php /var/www/nextcloud/occ user:resetpassword admin Enter a new password: Confirm the new password: Successfully reset password for admin
If your Nextcloud username is not
admin, then substitute your Nextcloud