Fail2Ban rule for MyDNS

Anybody has Fail2Ban rule for MyDNS?

I installed MyDNS as suggested by ISPConfig3 official user manual. I paid 5 Euro for it.

 

Why do you want a fail2ban rule for a DNS server?

There are no logins...

 

Hi falko,

But I see a fail2ban filter for named inside its filter directory.

 

Can you post its contents so that I can see what logins fail2ban is trying to track?

BTW, if you have a filter file, you already have the fail2ban rule in it.

 

named-refused.conf


# Fail2Ban configuration file for named (bind9). Trying to generalize the
# structure which is general to capture general patterns in log
# lines to cover different configurations/distributions
#
# Author: Yaroslav Halchenko
#
# $Revision: 730 $
#

[Definition]

#
# Daemon name
_daemon=named

#
# Shortcuts for easier comprehension of the failregex
__pid_re=(?:\[\d+\])
__daemon_re=\(?%(_daemon)s(?:\(\S+\))?\)?:?
__daemon_combs_re=(?:%(__pid_re)s?:\s+%(__daemon_re)s|%(__daemon_re)s%(__pid_re)s?
# hostname daemon_id spaces
# this can be optional (for instance if we match named native log files)
__line_prefix=(?:\s\S+ %(__daemon_combs_re)s\s+)?

# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = %(__line_prefix)sclient <HOST>#.+: query(?: \(cache\))? '.*' denied\s*$

# Option: ignoreregex
# Notes.: regex to ignore. If this regex matches, the line is ignored.
# Values: TEXT
#
ignoreregex =

 

jail.local



# DNS Servers

# These jails block attacks against named (bind9). By default, logging is off
# with bind9 installation. You will need something like this:
#
# logging {
# channel security_file {
# file "/var/log/named/security.log" versions 3 size 30m;
# severity dynamic;
# print-time yes;
# };
# category security {
# security_file;
# };
# };
#
# in your named.conf to provide proper logging

# Word of Caution:
# Given filter can lead to DoS attack against your DNS server
# since there is no way to assure that UDP packets come from the
# real source IP
[named-refused-udp]

enabled = false
port = domain,953
protocol = udp
filter = named-refused
logpath = /var/log/named/security.log

[named-refused-tcp]

enabled = false
port = domain,953
protocol = tcp
filter = named-refused
logpath = /var/log/named/security.log