This is on 0.8.8 (I know, I know, it's *OLD* )

We upgraded to Centos6.6 (which uses 0.8.8), which
seems quite *NEW* to *us*.

In the logs, I see this:

[root@10telecom02 ~]# grep 5.79.65.144 /var/log/messages*
/var/log/messages-20150419:Apr 13 17:01:09 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:46:05 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (~18 h?)
/var/log/messages-20150419:Apr 14 11:46:37 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:47:08 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (31 sec?)
/var/log/messages-20150419:Apr 14 11:47:54 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:48:00 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (6 sec?)
/var/log/messages-20150419:Apr 14 11:48:31 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:48:33 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (2 sec?)
/var/log/messages-20150419:Apr 14 11:49:05 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:49:08 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (3 sec?)
/var/log/messages-20150419:Apr 14 11:49:40 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:49:43 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (3 sec?)
/var/log/messages-20150419:Apr 14 11:50:14 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:53:01 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (2m, 47sec?)
/var/log/messages-20150419:Apr 14 11:53:58 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:54:08 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (10 sec?)
/var/log/messages-20150419:Apr 14 11:54:40 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 14 11:55:03 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (23 sec?)
/var/log/messages-20150419:Apr 14 11:55:35 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages-20150419:Apr 17 11:55:35 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Unban 5.79.65.144 (3d)
/var/log/messages-20150419:Apr 18 17:29:20 10t02 fail2ban.actions: WARNING
[asterisk-iptables] Ban 5.79.65.144
/var/log/messages:                 Apr 21 17:29:20 10t02 fail2ban.actions:
WARNING [asterisk-iptables] Unban 5.79.65.144 (3d)

The comments on the right in the above, are the time between the previous
Ban
and the Unban.

The bans are configured for 3 days.

A restart of fail2ban occurred  14 Apr,
11:46:02 thru 11:46:06 -- stopping jails
11:46:06 thru 11:46:37  -- starting jails

For the IP mentioned above, no events occurred on the 14th that would
trigger a ban via a log file.

>From 11:46:37 to 11:55:35  (about 9 minutes???) the Bans & Unbans bounced
freely!

​Has anyone noted this kind of behavior? Is it normal? Is it fixed in a
later version?

murf​

-- 

Steve Murphy

✉  murf at parsetree dot com
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