How to add IP address to whitelist (via command prompt)?

Distro Discussion & Help
1

Hello,
How to add IP address to whitelist (via command prompt)?

2

Add IP address to what, Fail2ban?

3

If you’re talking about the FreePBX Firewall, see the trust action on this page:
https://wiki.freepbx.org/display/FPG/Firewall+Command+Line