Well I'm not sure if this is a hacking attempt or just a DoS attack. For the last 6 days I have had 10,000 SIP register requests per minute from an IP address in China.(221.194.57.246) It's always the same register message 'aaron@...'
Right now I have set a port forwarding rule in my internet gateway firewall to send the requests back to that address. This jerk is using 6GB of my download quota per day. I think the only solution for me is to get my IP address changed and update DNS.
Have you read this article?
Works for me.Not sure what the deal is, when I click on the link Firefox is tossing the error:
Method Not Implemented
GET to / not supported.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
If I google the url I am able to view the cached copy.
?
root@pbx:~ $mysql -p
mysql> select * from cdr where dcontext='from-sip-external';
mysql> select * from cdr where calldate > "2012-01-25" and dcontext='from-sip-external' limit 10;
+---------------------+---------------------+---------+-----+-------------------+----------------------------+------------+------------+----------+----------+---------+-------------+----------+-------------+----------+-----------+
| calldate | clid | src | dst | dcontext | channel | dstchannel | lastapp | lastdata | duration | billsec | disposition | amaflags | accountcode | uniqueid | userfield |
+---------------------+---------------------+---------+-----+-------------------+----------------------------+------------+------------+----------+----------+---------+-------------+----------+-------------+----------+-----------+
| 2012-01-25 08:25:55 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000000 | | Congestion | 5 | 13 | 13 | ANSWERED | 3 | | | |
| 2012-01-25 08:25:56 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000001 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:25:58 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000002 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:00 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000003 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:02 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000004 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:04 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000005 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:06 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000006 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:08 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000007 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:10 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000008 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
| 2012-01-25 08:26:12 | "unknown" <unknown> | unknown | s | from-sip-external | SIP/195.137.189.2-00000009 | | Congestion | 5 | 12 | 12 | ANSWERED | 3 | | | |
+---------------------+---------------------+---------+-----+-------------------+----------------------------+------------+------------+----------+----------+---------+-------------+----------+-------------+----------+-----------+
10 rows in set (0.01 sec)
Link up your team and customers Phone System Live Chat Video Conferencing
Hosted or Self-managed. Up to 10 users free forever. No credit card. Try risk free.
Check your inbox!
We’ve sent you an email. Click on the button in the email body to verify your email address – (if you can not find it, check your spam folder).
Upon verification you will be directed to the 3CX setup wizard.