Članci

 Closing or open access to Web Configuration

Why do you need to close web port? Opening your web port exposes your PBX vulnerabilities. By...

 How to modify iptables

First you need to ssh and login as root then modify / etc / sysconfig / iptables or / etc /...

 Possible Failure to Start Iptables/Firewall that Includes FQDN

If you include FQDN (fully qualified domain name, for example pbx1.yourcompany,com,...