I did the following search Search results for 'fail2ban' - ownCloud Central and found Fail2ban and ownCloud 8.x + 9.0.x Seems the syntax indeed changed between the versions.
I did the following search Search results for 'fail2ban' - ownCloud Central and found Fail2ban and ownCloud 8.x + 9.0.x Seems the syntax indeed changed between the versions.