Public DNS servers are maintained by organizations that provide DNS services to the public, such as Google or OpenDNS. Private DNS servers, on the other hand, are typically maintained by organizations for their own internal network use.
The main differences between public and private DNS servers are:
1. Access: Public DNS servers are accessible to anyone on the internet, while private DNS servers are accessible only within the organization’s network.
1. Security: Private DNS servers are generally more secure than public ones because they are not accessible to the public. They are also easier to monitor and control, which makes it easier to identify and mitigate security threats.
1. Customization: Private DNS servers can be customized to meet the needs of the organization, while public DNS servers offer a more limited set of options.
1. Performance: Public DNS servers are typically designed to handle heavy traffic loads from a large number of users, while private DNS servers are designed with the specific network needs of the organization in mind. This can lead to better performance and faster response times.
1. Cost: Public DNS servers are generally free to use, while private DNS servers typically require some investment in hardware, software, and expert knowledge to set up and maintain.
