Specifications

MyPBX SOHO Administrator Guide
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Figure H-2-7
Note: Many attacks are caused by the web access, it’s highly recommend to drop the
untrusted connection via web interface.
Step6. Add common rules to accept the static public IP range of
NTP, SMTP, and POP server.
We recommend opening all ports for NTP, SMTP, and POP server in MyPBX’s firewall,
and the IP address should be a static one or it belongs to a range. If it’s Dyndns, there is
no need to configure this rule, but the IP blacklist should be kept, and “Drop All” should not
be ticked.
For example, the SMTP server is 110.30.1.123.
Name: Allow_SMTP
Protocol: BOTH
Port: 1:65535
IP: 110.30.1.123/255.255.255.255
Action: Accept
Figure H-2-7
As for the rule of NTP and POP server, you can create it one by one.
Step6. Configure auto blacklist rules
Auto blacklist rules: the Server would add the IP address to the blacklist automatically if
the number of the packets it sends exceeds the rule you configured.