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

[Patrick Laimbock]

On 04-09-14 16:44, motty cruz wrote:
> 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'.

Have a look at Fail2ban:
http://www.fail2ban.org/wiki/index.php/Main_Page

HTH,
Patrick