If you deployed Oracle Analytics Cloud with a public internet accessible endpoint and you have private data sources that Oracle Analytics Cloud connects to over a private access channel, you can use egress rules that you define in network security groups to restrict outgoing traffic through the channel. You can add up to five network security groups.

1. If you haven’t done so already, set up the network security groups that you want to use, and ensure you're assigned the correct policies to access to them.
2. In Oracle Cloud Infrastructure Console, click in the top left corner.
3. Click Analytics & AI. Under Analytics, click Analytics Cloud.
4. Select the compartment that contains the Oracle Analytics Cloud instance you're looking for.
5. Click the name of the instance you want to control access from.
6. On the Instance Details page, navigate to the Resources section, and click Private Access Channel.

   If you haven’t done so already, configure the private access channel, the private data sources you want this instance to connect to, and the network security groups you want the channel to use. See Configure a Private Access Channel.

7. Under Name, click the name of the private access channel you want to edit.
8. Under Networking Information, click the Edit link next to Access Control.
   
9. Click Another Network Security Group, and then select the name of the network security group you want to give access to.

   Click Change Compartment if the network security group you're looking for is located in a different compartment.

   
10. Click Another Network Security Group to give access to other network security groups.
    You can add up to five network security groups.