You can change firewall port values and open additional ports to support interprocess communications between the various Oracle Analytics Server components.

1. Create a custom firewall configuration file.
   1. Use your favorite SSH client to connect to the compute instance for Oracle Analytics Server. Log in as the opc user.

      ssh -i path_to_private_key opc@oas_public_ip

   2. Switch to the oracle user.

      sudo su oracle

   3. Navigate to the folder /u01/app/oas-scripts.
   4. Copy the default firewall configuration file /u01/app/oas-scripts/DefaultSingleNodeOASFirewallPorts.xml and name the copy MyOASFirewallPorts.xml or similar.
2. Configure the required ports in your custom firewall configuration file.

   • For a single node environment, you must include the minimum required ports. See Single Node Environment - Minimum Required Ports.

   • For a scaled-out, multi-node environment, several additional ports are required. See Scaled-out, Multi-node Environment - Minimum Required Ports.

3. Use the script open_oas_firewall_ports.sh to open the ports configured in your custom firewall configuration file (/u01/app/oas-scripts/<Custom Firewall Configuration XML File>).
   1. Navigate to: /u01/app/oas-scripts/open_oas_firewall_ports.sh
   2. If required, edit the script to include the name of your custom firewall configuration file.
      
   3. Run open_oas_firewall_ports.sh to open the ports in your custom firewall configuration script.