18 Mar
2012
18 Mar
'12
12:48 p.m.
On 03/18/2012 12:17 PM, Timothy Murphy 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".
Regards, Patrick