# IP Whitelisting > Add Holistics' IP addresses to your database firewall so a direct connection can be established, with addresses listed by data center region (APAC, EU, US). If you're using [Direct Connection](connect-direct.md) method, you might need to whitelist Holistics' IP addresses in order to connect properly. :::warning NOTE Please consult with your SysOps, DBA to help you to whitelist our IP addresses. Doing so ensures that only specific, trusted hosts can have access to your database. ::: ## IP Addresses to whitelist You can find the 2 IP addresses in your **Data Source Connection Form**. Or, you can check your Data Center and then whitelist the compatible IPs: * **APAC**: * 188.166.198.14 * 188.166.196.151 * **EU**: * 157.245.16.185 * 157.245.16.186 * **US**: * 143.244.210.106 * 143.244.209.90 ## IP Whitelisting Guide ### Using normal web servers ```bash sudo ufw allow from 188.166.198.14 sudo ufw allow from 188.166.196.151 ``` ### Using Amazon Web Services (AWS) If your database is hosted on Amazon AWS, but not on a VPC, you can set up a security group and whitelist Holistics' IP addresses. See the UI below (remember to change the IP address to Holistics IP, with `/32` as the suffix). E.g:`12.12.12.12/32` (see Redshift Documentation [here](https://docs.aws.amazon.com/redshift/latest/gsg/rs-gsg-authorize-cluster-access.html))