[CentOS] Semi-OT: fail2ban issue

Thu Oct 29 16:42:43 UTC 2015
m.roth at 5-cent.us <m.roth at 5-cent.us>

Tony Mountifield wrote:
> In article <1446132814771.22431 at slac.stanford.edu>,
> Eriksson, Thomas <thomas.eriksson at slac.stanford.edu> wrote:
>> This should probably be a bug report for the fail2ban EPEL maintainer,
>> the problem was introduced in version 0.9.3
>>
>> >From the file /etc/fail2ban/action.d/iptables-common.conf
>> ...
>> # Option:  lockingopt
>> # Notes.:  Option was introduced to iptables to prevent multiple
>> instances from
>> #          running concurrently and causing irratic behavior.  -w was
>> introduced
>> #          in iptables 1.4.20, so might be absent on older systems
>> #          See https://github.com/fail2ban/fail2ban/issues/1122
>> # Values:  STRING
>> lockingopt = -w
>> ...
>>
>> Now, CentOS 6.7 has iptables 1.4.7 and the "wait" option does not seem
>> to have been backported by RedHat, so the EPEL package for EL6 should
>> probably not have this as the default.
>>
>> My workaround was to create a file
>> /etc/fail2ban/action.d/iptables-common.local that contains
>> ...
>> [Init]
>> lockingopt =
>> ...
>
> Looks like it has been fixed in the update fail2ban-0.9.3-1.el6.1
>
Thanks to Thomas, and I created the .local file. Thanks to Tony, and I
just updated fail2ban, checked iptables-common.conf, and then rm'd the
.local file.

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