The Domain Name System (DNS) is used to resolve human-readable hostnames into machine-readable IP addresses. It also provides other useful info about domain names, such as mail services. DNS server is a computer server which contains the database of public IP addresses & their associated host-names , It translates those common names to IP addresses as requested , DNS servers run special software & communicate with each other using special protocols .
What Is a Domain Name System Server?
The DNS is a global network of primary and secondary servers maintaining a shared and distributed database that maps the name and IP address of all public accessed devices communicating with the Internet. This would be computers, tablets, smart phones, digital video recorders, and more. The secondary server functions as a backup to the primary server. A DNS server is typically through an Internet service provider or ISP.
How DNS Works:
DNS is a client/server network communication systems , DNS clients send the requests to and receive the responses from DNS servers , The requests containing the name , which result in an IP address being returned from the server , they are called forward DNS lookups , The requests containing IP address & resulting in the names that are called the reverse DNS lookups .DNS contains support for caching the requests & for redundancy , Most network operating systems support configuration of primary , secondary and tertiary DNS servers , each of which can service initial requests from clients & it was designed to avoid a single large central database.
Features of DNS?
Cloud DNS is scalable, reliable and secure - it offers high performance under high traffic spikes from anywhere in the world. It's a purpose-built, aways-on web solution, made to address the web performance needs of any business that relies on the internet.
It's simple to use and understand
By using your provider's service plans, you don't need to worry about the details of keeping a global DNS infrastructure running. You just set your records and kick back, free to focus your time on other pending issues. You pay for a reliable service that's run by experts.
It's boosts your performance
Small businesses or home users typically use the default DNS server of their internet service provider, but other DNS providers are often faster. There is a number of thing that a cloud DNS provider does to keep your performance sharp:
- Overprovisioning machine resources.
- Provisioning servers adequately to handle the load from client traffic, including malicious traffic.
- Preventing DoS and amplification attacks -granted, this is a security measure, but it also has a benefit for performance by eliminating the extra traffic burden placed on DNS servers.
- Load-balancing for shared caching, to improve the aggregated cache hit rate across the serving cluster.
- Providing global coverage for proximity to all users.
You get 24/7 support
Small businesses or home users typically use the default DNS server of their internet service provider, but other DNS providers are often faster. There is a number of thing that a cloud DNS provider does to keep your performance sharp: