[asterisk-users] Asterisk secure fine tune - stop attack

[Thorsten Göllner]

Am 04.09.2014 16:44, schrieb motty cruz:
> Hi All,
> I see this kind of attack on our Asterisk Server, do you know how to 
> block that IP?
>
> [Sep  4 07:41:06] NOTICE[7375]: chan_sip.c:23375 
> handle_request_invite: Call from '' (213.136.81.166:9306 
> <http://213.136.81.166:9306>) to extension '34422' rejected because 
> extension not found in context 'default'.
>

You should not invest time in blocking single IPs. Take a look at 
"fail2ban".
http://www.fail2ban.org/wiki/index.php/Asterisk

-Thorsten-
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