Before connecting to any Less-hosted database you need to whitelist the IP address that the traffic will be coming from. By default, we restrict access for security measures. That means it will only the IP addresses that you whitelist that can connect to the particular database.

You can view and create new IP rules by clicking on the three dots to the right from the database overview and navigating to Whitelist IPs. Click the Whitelist New IP to allow new IPs to access your database.

You are not allowed to use any special characters when you name new whitelisting rules

You can also whitelist ranges. For instance, if you want to whitelist 2.0.0.0-2.255.255.255 you can input 2.0.0.0/8. This basically means “keep the first digit fixed but allow the remaining three to vary”. In other words, 2.0.0.0/16 would whitelist this range: 2.0.0.0-2.0.255.255. If you only want to whitelist one particular IP you can use /32 so for instance 8.8.8.8/32 would whitelist only that specific IP.