On Mon, March 9, 2015 13:11, John Plemons wrote:
> Been working on fail2ban, and trying to make it work with plain Jane
> install of Centos 7
>
> Machine is a HP running 2 Quad core Xeons, 16 gig or ram and 1 plus TB
> of disk space. Very generic and vanilla.
>
> Current available epel repo version is fail2ban-0.9.1
>
> Looking at the log file, fail2ban starts and stops fine, there isn't
> output though showing any login attempts being restricted.
>
> 2015-03-09 12:54:37,930 fail2ban.server [14805]: INFO
> Stopping all jails
> 2015-03-09 12:54:37,931 fail2ban.server [14805]: INFO
> Exiting Fail2ban
> 2015-03-09 12:54:38,338 fail2ban.server [16678]: INFO
> Changed logging target to /var/log/fail2ban.log for Fail2ban v0.9.1
> 2015-03-09 12:54:38,341 fail2ban.database [16678]: INFO
> Connected to fail2ban persistent database
> '/var/lib/fail2ban/fail2ban.sqlite3'
>
> I copied jail.conf and added the edited jail.local to the directory
> /etc/fail2ban/
>
> This is about as far as I have gotten with searches on how to
> configure
> with Centos 7.
>
> Any help would be welcome. What am I missing?
>
> john
>
This is what I have for ssh in jail.conf
[ssh-iptables]
enabled = true
filter = sshd
action = iptables[name=SSH, port=ssh, protocol=tcp]
sendmail-whois[name=SSH, dest=x at harte-lyne.ca,
sender=x at harte-lyne.ca, sendername=Fail2Ban]
logpath = /var/log/secure
maxretry = 5
And this (among many others) is what we have in /etc/fail2ban/action.d
cat /etc/fail2ban/action.d/iptables.conf
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
#
[INCLUDES]
before = iptables-blocktype.conf
[Definition]
# Option: actionstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart = iptables -N fail2ban-<name>
iptables -A fail2ban-<name> -j RETURN
iptables -I <chain> -p <protocol> --dport <port> -j
fail2ban-<name>
# Option: actionstop
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop = iptables -D <chain> -p <protocol> --dport <port> -j
fail2ban-<name>
iptables -F fail2ban-<name>
iptables -X fail2ban-<name>
# Option: actioncheck
# Notes.: command executed once before each actionban command
# Values: CMD
#
actioncheck = iptables -n -L <chain> | grep -q 'fail2ban-<name>[ \t]'
# Option: actionban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: See jail.conf(5) man page
# Values: CMD
#
actionban = iptables -I fail2ban-<name> 1 -s <ip> -j <blocktype>
# Option: actionunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: See jail.conf(5) man page
# Values: CMD
#
actionunban = iptables -D fail2ban-<name> -s <ip> -j <blocktype>
[Init]
# Default name of the chain
#
name = default
# Option: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ] Default:
#
port = ssh
# Option: protocol
# Notes.: internally used by config reader for interpolations.
# Values: [ tcp | udp | icmp | all ] Default: tcp
#
protocol = tcp
# Option: chain
# Notes specifies the iptables chain to which the fail2ban rules
should be
# added
# Values: STRING Default: INPUT
chain = INPUT
HTH
--
*** E-Mail is NOT a SECURE channel ***
James B. Byrne mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
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