[CentOS] fail2ban attempt, anyone want to add anything?

Fri Apr 20 06:36:40 UTC 2012
Bob Hoffman <bob at bobhoffman.com>

On 4/20/2012 2:24 AM, Bob Hoffman wrote:
> if I could add something, definitely put ports, if numbers, in
> quotes...without quotes I got some errors in the logs
> port=ftp, no quotes.....port="2222" quotes
>
> and I added one for vsftp, I use port 5000
>
> [vsftpd-iptables]
> enabled  = true
> filter   = vsftpd
> action   = iptables[name=VSFTPD, port="5000", protocol=tcp]
> logpath  = /var/log/vsftpd.log
> maxretry = 5
> bantime  = 1800
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>
my final add on this tonight..

due to the older versions of 'whatever' centos uses, there will be 
errors on startup of fail2ban regarding multiport
jails.
To avoid these errors it was suggested to add a sleep mechanism to the 
start up commands in the proper file.

/etc/fail2ban/action.d/iptables-mutliport.conf

added a sleep line     sleep `perl -e 'print rand(3);'` to line 14 and 
dropped everything down one line to make room for it

actionstart = sleep `perl -e 'print rand(3);'`
               iptables -N fail2ban-<name>
               iptables -A fail2ban-<name> -j RETURN
               iptables -I INPUT -p <protocol> -m multiport --dports 
<port> -j fail2ban-<name>