Difference between revisions of "I have a problem with Security"

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1. Make sure you use strong passwords for authentication<br>
1. Make sure you use strong passwords for authentication<br>
2. Check if there are not unauthorized connections in PBX<br>
2. Check if there are unauthorized connections in PBX<br>
3. [[How to block someone's IP| Block]] all unknown IPs from your system<br>
3. [[How to block someone's IP| Block]] all unknown IPs from your system<br>
4. Some cases indicated problems which are reviewed [http://nerdvittles.com/?p=737 here] and [http://www2.elastix.org/en/component/kunena/116-security/73040-how-to-change-the-default-asteriskuser-password.html here].<br>
4. Some cases indicated problems which are reviewed [http://nerdvittles.com/?p=737 here] and [http://www2.elastix.org/en/component/kunena/116-security/73040-how-to-change-the-default-asteriskuser-password.html here].<br>
5. Setup a secure VPN connection from your PBX to MOR.
5. Setup a secure VPN connection from your PBX to MOR.

Revision as of 07:39, 27 April 2011

You see a lot if unknown calls in your statistics with unusual destinations and callerIDs.

You should see such lines after issuing command iptables --list :

[root@kolmisoft]# iptables --list
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
DROP       all  --  XX.XX.XX.XX         anywhere            
fail2ban-SSH  tcp  --  anywhere             anywhere            tcp dpt:ssh 
fail2ban-ASTERISK  all  --  anywhere             anywhere            
DROP       all  --  XX.XX.XX.XX       anywhere            
DROP       all  --  XX.XX.XX.XX  anywhere      

Where XX.XX.XX.XX is some IP address

  • If you see unauthorized calls from your connected PBX like FreePBX, Elastix:

1. Make sure you use strong passwords for authentication
2. Check if there are unauthorized connections in PBX
3. Block all unknown IPs from your system
4. Some cases indicated problems which are reviewed here and here.
5. Setup a secure VPN connection from your PBX to MOR.