LitExtension IPs you need to add:
- Login to Plesk.
- Click Websites & Domains tab at the top.
- Click SQL Whitelist Beta icon.
- Click Add IP, select service and type IP;
- Click OK.
2. Web Host Manager (WHM)
- Login to WHM
- Go to the bottom of the left menu to the Plugins
- Click on the Config Server Security & Firewall option.
- Next to the “Quick Allow” button, type the IP you wish to Allow (Green Box) and press “Quick Allow”.
See the following instructions how to whitelist IPs in cPanel