If DNS Stops for 5 Minutes… the Internet COLLAPSES 😱 | DNS Explained | How DNS Really Works скачать в хорошем качестве

If DNS Stops for 5 Minutes… the Internet COLLAPSES 😱 | DNS Explained | How DNS Really Works

Have you ever wondered how your browser magically knows the IP of google.com? What actually happens between typing a URL and seeing a website load? 🤯 This video takes you on a real Internet road-trip to explain DNS (Domain Name System) — the invisible backbone of the internet. 🔍 In this video, you’ll learn: ✔ What DNS really is (in one simple line) ✔ Why the internet cannot function without DNS ✔ Why DNS is distributed, hierarchical, and global ✔ What Root Servers, TLD servers, and Authoritative servers actually do ✔ How a DNS query travels across the world in milliseconds ✔ Why DNS caching makes the internet fast ✔ What DNS records (A, AAAA, CNAME, MX, TXT, NS) are ✔ Why DNS mostly uses UDP port 53 ✔ How DNS is exploited by attackers ✔ What DNSSEC, DoH, and DoT fix ✔ How your home router and ISP handle DNS ✔ Why DNS is the #1 attack vector today DNS is not “just a service”. It is the largest distributed database on Earth, answering billions of queries every second. 👉 Like if DNS finally clicked 👉 Subscribe for deep internet concepts explained visually 👉 Comment “ROOT” if you want a dedicated Root Server video 🌍 dns explained, domain name system, how dns works, dns tutorial, dns hierarchy, root dns server, tld server, authoritative dns, recursive dns, dns resolution process, udp port 53, tcp port 53, dns caching, ttl dns, dns records, a record, cname record, mx record, dns security, dnssec, dns over https, doh, dot dns, internet fundamentals, networking basics, ccna dns, cloudflare dns, google dns, isp dns, reverse dns ptr, dns load balancing, round robin dns #DNS #InternetExplained #NetworkingBasics #CCNA #DomainNameSystem #CyberSecurity #CloudComputing #HowInternetWorks #TechEducation #DNSSEC #DoH #DoT #Networking #websecurity 0:00 Importance: DNS prevents internet collapse by mapping names to IPs. 1:30 Process: DNS is a hierarchical, distributed system, not a single server. 3:00 Structure: 13 Root servers direct traffic to specific TLD (.com, .in) servers. 5:00 Mapping: TLDs point to authoritative servers which act as load balancers. 9:00 Acquisition: Devices receive DNS server info via DHCP from routers and ISPs. 10:30 Efficiency: Caching at OS and ISP levels reduces repeated lookups. 11:00 Recursion: Resolvers query doors iteratively from Root to Authoritative. 13:30 Protocol: Uses UDP port 53 for fast, lightweight response times. 14:30 Security: DNSSEC uses cryptography to stop hijacking and cache poisoning. 15:30 Customization: Users can override ISP DNS with public ones like 8.8.8.8.