Configure DNS forwarding on Unbound

Before you begin

Note the IP addresses of the ETP recursive DNS servers. For more information, see View DNS server information.

Complete this procedure to configure DNS forwarding on an Unbound DNS server.

Log in to the Unbound server.
From a terminal window, use a Linux text editor such as vi or Vim to open the unbound.conf file.

Note: The unbound.conf is usually copied to /usr/local/etc/unbound/unbound.conf but it also can be located in /etc/unbound/unbound.conf or /etc/unbound.conf.
Locate the forward-zone area of the file.
Under forward-zone, enter this information:
```
forward-zone:  
           name: "."
           forward-addr: <ETP_primary_IP>
           forward-addr: <ETP_secondary_IP>
```
where:
- <ETP_primary_IP> is the IP address of the primary ETP recursive server.
- <ETP_secondary_IP> is the IP address of the secondary ETP recursive server.
Save these changes.