{"id":812,"date":"2019-02-03T14:34:42","date_gmt":"2019-02-03T14:34:42","guid":{"rendered":"https:\/\/www.copahost.com\/blog\/?p=812"},"modified":"2024-10-31T14:44:17","modified_gmt":"2024-10-31T14:44:17","slug":"what-does-dns-stand-for","status":"publish","type":"post","link":"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/","title":{"rendered":"What does DNS stand for?"},"content":{"rendered":"

DNS stands for Domain Name System (RFC 2929<\/a>). It is an internet service by which human-readable domain names (eg- www.abz.com ) are located and translated into machine-readable IP addresses (eg- 50.16.85.103). As an example, DNS may be considered as a phone directory. When we ask what does DNS stand for, we must keep in mind that it holds crucial information about the domain names. These domain names<\/a> comprise of – email servers (MX records) and <\/span><\/span><\/span>email validation protocols\u00a0<\/span><\/span><\/span>(DKIM, SPF, DMARC), TXT record verification, and SSH fingerprints. Thus, DNS works by keeping a record of every device that accesses the internet as per their IP addresses. For example, the basic DNS definition is a server that answers to your browser what is the IP address of a domain name<\/a>.<\/span><\/span><\/span><\/p>\n

How does DNS work?<\/h3>\n

The DNS protocol works just like querying a specific domain name for its IP address<\/a>. This is called “DNS Lookup”. Whenever you try to open a URL<\/a> in your web browser, it will query the DNS records for the IP address of the domain name (with a DNS Lookup). Then, the DNS server tells the IP address to your web<\/a> browser. And finally, the browser establishes a connection with the webserver using this IP and asks for the specific content of the file and path of the requested URL.<\/p>\n

\"What<\/p>\n

Above all, 99% of internet traffic is based on the TCP\/IP protocol. This protocol only “talks” from IP to IP. A domain name (or a subdomain) is like a beautiful “front end” to make things easier for the customer.<\/p>\n

For example, imagine if there weren’t DNS Servers in the world. Every store would give you a business card with their IP address just like: “185.15.43.160”.<\/p>\n

\"example<\/p>\n

Public DNS versus Private DNS servers<\/b><\/span><\/span><\/span><\/h3>\n

The DNS definition between public and private servers is very similar. The difference is only who can or can’t use them. Public DNS servers can resolve (answer) hosts for any connected customer. What does a private DNS stand for? A server only resolves hostnames of locally connected computers, servers or customers.<\/p>\n

Public and Free DNS Servers examples<\/b><\/span><\/span><\/span><\/h3>\n

Some of the best public and free DNS servers include:<\/span><\/span><\/span><\/p>\n