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DNS Related Technical Terms

The knowledge of certain technical terms proves to be very useful when trying to grasp technological concepts that are related to a DNS (Domain Name System)<br>

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DNS Related Technical Terms

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  1. DNS Related Technical Terms

  2. Table of Contents • Name server • Anycast • Authoritative Name server • BIND (Berkeley Internet Name Domain) • BGP (Border Gateway Protocol) • CNAME • Delegation • Forward Lookup • Global Node • GSLB • TSIG

  3. Name server • Domain names are translated into IP addresses by name servers. This enables users to access websites by typing their domain names rather than their IP addresses. Name servers are an essential part of the DNS (Domain Name System) and aid in connecting URLs with web servers’ IP addresses. • To digress, every website has an IP address. These websites are made accessible online through the service of web hosting. This service is provided by web hosting companies. The most renowned web hosting companies are usually referred to as the “Best Windows Dedicated Hosting Company”, the “Best Linux Shared Hosting Company”, the “Top Cloud Hosting Company” etc.

  4. Anycast • Anycast is a routing or addressing method. In it, the queries get routed to the nearest node among several options. In the context of DNS, an anycast network responds to the DNS queries from the closest node geographically, when all nodes have the same IP address. This aids in keeping the DNS secure at any given node from the malicious activities or failures at other nodes. Anycast nodes are configured as local nodes or global nodes.

  5. 1-800-123 -8156 Whoa! That’s a big number, aren’t you proud?

  6. Authoritative Name server • The authoritative name server is a server in the DNS. It responds to queries about names in a particular zone. These name servers provide answers about such zones which are locally configured as authoritative zones.

  7. BIND (Berkeley Internet Name Domain) • BIND is the abbreviation for Berkeley Internet Name Domain. It is the most extensively used name server software that can be found on the Internet. It originated as an open-source software for implementing the Internet’s DNS protocols. This software has three components, which include a DNS server, a DNS resolver library and software tools that are meant for testing.

  8. BGP (Border Gateway Protocol) • The BGP is the abbreviation for Border Gateway Protocol and refers to a protocol for system routing. This highly scalable as well as robust protocol is used to route information on the Internet. It defines routing policies by using route parameters. It maintains a routing environment that is stable. It lets gateway hosts exchange routing information in a network of autonomous systems.

  9. Delegation • In delegation, a server is delegated to be a domain name’s authoritative name server. It can involve delegating responsibility with regard to name resolution to a server that is owned by a DNS supplier.

  10. Forward Lookup • In forward lookup, a domain name is used to find an IP address.

  11. Global Node • Queries from anywhere on the Internet are answered by a global node in the DNS. It is accessible from anywhere on the Internet.

  12. GSLB • GSLB stands for Global Server Load Balancing. GSLBs refer to geographically distributed servers. These have authoritative name servers running at every site. Load balancing is meant to manage traffic across the servers.

  13. TSIG • TSIG is the abbreviation for Transaction Signature. It is used to send zone updates in a secure manner between nodes/servers. The DNS uses it as a networking protocol. It ascertains that the information from a certain server is indeed from that server.

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