How to whitelist Public IP in PBX

Before configuring your phones in FreePBX, it’s a good idea to whitelist your IP address to avoid being blocked by Fail2ban.

You need to get the Public IP by user or ask them to visit and provide IP address.

Follow below steps to Whitelist an IP

Login to FreePBX using Putty

Run the below command to Whitelist it

iptables -A INPUT -s X.X.X.X/16 -j ACCEPT

X.X.X.X should be replacing with the IP address we got from user.

Then, run the below command to save changes

iptables-save > /etc/sysconfig/iptables

To view the IPtabes list to verify if IP has been added successfully

less /etc/sysconfig/iptables

We can also use Asterisk console to view all extensions/registered accounts

asterisk -vr

sip show peers

Type exit to comes out from Asterisk Console

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