DNS Full Form
by Yogi P - August 26, 2023
What is the full form of DNS?
Full form of DNS is the Domain Name System.
What does DNS stands for?
DNS stands for Domain Name System. Think of DNS as the phonebook of the internet. While we remember website names, computers understand numerical IP addresses. So, DNS helps convert website names into IP addresses, making it easier for us to browse the web without memorizing long strings of numbers.
How Does DNS Work?
When you type a website name into your browser, here’s what happens:
- Your browser asks a DNS server for the website’s IP address.
- The DNS server checks its lookup table to find the corresponding IP address for that website name.
- Once found, it sends the IP address back to your browser.
- Your browser then connects to the website using that IP address.
All this is done quickly behind the scenes. There’s a Central Registry that holds data for all domain names. Regular updates are made to this, and it can take between 12 to 36 hours for all DNS servers globally to recognize changes or new domains. This delay is known as propagation.
Key Features of DNS:
- DNS works using a distributed database, meaning it’s spread out across multiple locations.
- It not only translates names to IP addresses but can store other data.
- Managing DNS involves using a user interface, where various features and settings can be adjusted.
Benefits of DNS:
- Users get uninterrupted access to websites.
- With “Anycast” technology, if there’s a problem at one location, your request will automatically be redirected to the nearest available location.
- DNS can quickly correct errors.
Drawbacks of DNS:
- ICANN, a private non-profit organization, oversees the primary DNS registry. This central control contrasts with the internet’s decentralized nature and can raise concerns about network neutrality.
- The entire World Wide Web relies on DNS. If DNS fails—even with multiple backup servers—it could disrupt the internet, causing widespread issues.
In summary, DNS is a critical part of how the internet works, turning the website names we know and remember into addresses that computers can understand.
Authenticated resource of this informations:
