To configure the system to resolve server1.example.com using the nameserver 192.168.0.254, you need to update the DNS configuration. This can be done by editing the /etc/resolv.conf file to include the nameserver. Here are the steps to do this: 1. Open the /etc/resolv.conf file using a text editor, for example: vi /etc/resolv.conf 2. Add the following line to the file: nameserver 192.168.0.254 3. Save the changes and exit the editor. 4. To verify the changes, you can use the host command: host server1.example.com. This command should resolve the server1.example.com to its IP address using the specified nameserver.