This site is under construction and is both very incomplete and subject to change.
The current cannonical site for documentation is here.

2. Check the Existing Filters

In this step we’re just checking that everything looks right:

root@example:~# ls -hl /etc/fail2ban/filter.d/wordpress-*.conf
-rw-r--r-- 1 root root  798 Dec  8 18:32 /etc/fail2ban/filter.d/wordpress-extra.conf
-rw-r--r-- 1 root root 1.3K Dec  8 18:32 /etc/fail2ban/filter.d/wordpress-hard.conf
-rw-r--r-- 1 root root  634 Dec  8 18:32 /etc/fail2ban/filter.d/wordpress-soft.conf
root@example:~#

Don’t worry about the size or the date – as long as you’ve got 3 files with the right names you can move on to the next step.