That is certainly possible! And it should be quite easy to write that rule :)
@selea OK, I gave it a try. Let's see whether it works!
@carbontwelve Yeah, I’ve added whole blocks owned by Chinese ISPs in the past. 🤨
Perhaps I have to start looking for a better report on the fail2ban log file.
@kensanata I'd be interested in that config
@mrb I added it to the end of https://alexschroeder.ch/wiki/2019-01-20_fail2ban_to_watch_over_my_sites
@kensanata excellent, thanks!