True or False: It is possible to run multiple DNS servers on a single machine.

True or False: It is possible to run multiple DNS servers on a single machine.

• A. True
• B. False
• C. Sometimes
• D. Not possible

Answer: (A)

Multiple DNS server processes can run on one machine because DNS software is just programs that listen on network sockets. You can start more than one instance, each with its own configuration and data, and configure them to listen on different IP addresses or ports. For example, one server could listen on 192.168.1.10:53 and another on 10.0.0.5:53, or you could run one instance on the loopback address for testing while another serves a local network. Containers or separate namespaces can also help keep them isolated. The key point is that you’re not limited to a single DNS server per machine; as long as the servers don’t try to bind to the same IP and port combination, coexistence works. So, this is possible.

Multiple DNS server processes can run on one machine because DNS software is just programs that listen on network sockets. You can start more than one instance, each with its own configuration and data, and configure them to listen on different IP addresses or ports. For example, one server could listen on 192.168.1.10:53 and another on 10.0.0.5:53, or you could run one instance on the loopback address for testing while another serves a local network. Containers or separate namespaces can also help keep them isolated. The key point is that you’re not limited to a single DNS server per machine; as long as the servers don’t try to bind to the same IP and port combination, coexistence works. So, this is possible.