Hi, reviewing the log I found this error fail2ban:
2014-09-29 00:01:45,175 fail2ban.actions[1371]: WARNING [named-refused-tcp]
Ban 162.212.181.242
2014-09-29 00:27:11,267 fail2ban.actions[1371]: INFO [named-refused-tcp]
162.212.181.242 already banned
2014-09-29 01:30:54,422 fail2ban.actions[1371]: INFO [named-refused-tcp]
162.212.181.242 already banned
2014-09-29 03:50:56,808 fail2ban.actions[1371]: INFO [named-refused-tcp]
162.212.181.242 already banned
2014-09-29 10:01:45,661 fail2ban.actions[1371]: WARNING [named-refused-tcp]
Unban 162.212.181.242
2014-09-29 10:01:45,712 fail2ban.actions.action[1371]: ERROR iptables -n
-L INPUT | grep -q 'fail2ban-Named[ \t]' returned -1
2014-09-29 10:01:45,713 fail2ban.actions.action[1371]: ERROR Invariant
check failed. Trying to restore a sane environment
2014-09-29 10:01:45,715 fail2ban.actions.action[1371]: ERROR iptables -D
INPUT -p tcp -m multiport --dports domain,953 -j fail2ban-Named
iptables -F fail2ban-Named
iptables -X fail2ban-Named returned -1
2014-09-29 10:01:45,759 fail2ban.actions.action[1371]: ERROR iptables -N
fail2ban-Named
iptables -A fail2ban-Named -j RETURN
iptables -I INPUT -p tcp -m multiport --dports domain,953 -j fail2ban-Named
returned -1
2014-09-29 10:01:45,761 fail2ban.actions.action[1371]: ERROR iptables -n
-L INPUT | grep -q 'fail2ban-Named[ \t]' returned -1
2014-09-29 10:01:45,762 fail2ban.actions.action[1371]: CRITICAL Unable to
restore environment
Regards,
--
*Wilmer Arambula. *
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