[CentOS] Fail2ban problem

Patrick Lists centos-list at puzzled.xs4all.nl
Sun Mar 18 13:30:05 UTC 2012

On 03/18/2012 02:08 PM, Timothy Murphy wrote:
> Patrick Lists wrote:
>>> If there is a serious power failure, eg during an electric storm,
>>> and the internet goes down
>>> then my CentOS-6.2 server seems to take an inordinate time, maybe
>>> forever, to get past fail2ban.
>>> It is as though there is an extremely long - maybe an hour - timeout
>>> if fail2ban cannot connect to the internet.
>> Just a wild guess but could it be that fail2ban is trying to resolve all
>> the IP addresses in it's database? Iirc there is a config option called
>> use_dns. Try setting it to "no" or "warn".
> Thanks for the suggestion.
> But I couldn't find any option like that anywhere below /etc/fail2ban
> in fail2ban-0.8.4-28.el6 .

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