Domain Name System (DNS)
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What is Domain Name System (DNS)?
The Domain Name System (DNS) is a fundamental protocol of the internet that translates human-readable domain names, like www.example.com, into IP addresses, such as 192.0.2.1, which are used by computers to locate and communicate with each other. Essentially, DNS acts as the internet's phonebook, enabling users to access websites and services without needing to memorize numerical IP addresses. When a user types a domain name into a browser, a DNS query is sent to a DNS server, which then resolves the domain into its corresponding IP address, allowing the browser to connect to the appropriate server. DNS is crucial for the functionality of the internet, as it underpins virtually all online activities by ensuring that requests are routed to the correct destinations.
Free resources to learn Domain Name System (DNS)
- ArticleWhat is DNS?
- VideoDNS Explained in 100 Seconds
- VideoWhat is DNS?
More in stage 3: Networking Knowledge
- Networking Knowledge
- Basics of Subnetting
- Public vs Private IP Addresses
- VMWare
- VirtualBox
- esxi
- proxmox
- localhost
- loopback
- CIDR
- subnet mask
- default gateway
- Installation and Configuration
- Different Versions and Differences
- Navigating using GUI and CLI
- Understand Permissions
- Installing Software and Applications
- Performing CRUD on Files
- Troubleshooting
- Common Commands
- Hypervisor
- GuestOS
- HostOS
- VM
- VLAN
- DMZ
- ARP
- VM
- DHCP
- NAT
- IP
- Router
- Switch
- VPN
- MAN
- LAN
- WAN
- WLAN
- ipconfig
- ping
- dig
- netstat
- route
- nmap
- tcpdump
- arp
- tracert
- nslookup
- iptables
- Packet Sniffers
- Port Scanners
- Protocol Analyzers
- DHCP
- DNS
- NTP
- IPAM
Domain Name System (DNS): common questions
Can I learn Domain Name System (DNS) in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Domain Name System (DNS) in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Domain Name System (DNS) tutorial for beginners?
It is lesson 67 of 301 in the free Cyber Security roadmap, in stage 3, Networking Knowledge. If you are new to Cyber Security, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.