{"id":78460,"date":"2025-09-12T02:24:35","date_gmt":"2025-09-12T02:24:35","guid":{"rendered":"http:\/\/bangla.sitestree.com\/?p=78460"},"modified":"2025-09-12T02:24:36","modified_gmt":"2025-09-12T02:24:36","slug":"explain-dns","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=78460","title":{"rendered":"Explain DNS"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p>Ref: AI Tools\/OpenAI\/ChatGPT<\/p>\n\n\n\n<p>&#8220;Here\u2019s a <strong>short, simple, and copyright-free<\/strong> version you can post directly on your blog:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 What is DNS?<\/h2>\n\n\n\n<p>DNS stands for <strong>Domain Name System<\/strong>.<br>It\u2019s like the <strong>phonebook of the internet<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Humans use names (like <code>www.google.com<\/code>).<\/li>\n\n\n\n<li>Computers use numbers (IP addresses, like <code>142.250.72.196<\/code>).<\/li>\n\n\n\n<li>DNS is the system that <strong>translates names into numbers<\/strong> so browsers and apps know where to connect.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd39 Example<\/h3>\n\n\n\n<p>When you type <code>facebook.com<\/code> in your browser:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Your computer asks a DNS server: \u201cWhat\u2019s the IP address of facebook.com?\u201d<\/li>\n\n\n\n<li>DNS replies with the correct IP.<\/li>\n\n\n\n<li>Your browser connects to that IP \u2192 website loads.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd39 Why It Matters<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Without DNS, you\u2019d have to remember long IP addresses.<\/li>\n\n\n\n<li>With DNS, the internet becomes human-friendly and easy to use.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ref: AI Tools\/OpenAI\/ChatGPT &#8220;Here\u2019s a short, simple, and copyright-free version you can post directly on your blog: \ud83c\udf10 What is DNS? DNS stands for Domain Name System.It\u2019s like the phonebook of the internet. \ud83d\udd39 Example When you type facebook.com in your browser: \ud83d\udd39 Why It Matters &#8220;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1978],"tags":[],"class_list":["post-78460","post","type-post","status-publish","format-standard","hentry","category-computer-networks","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":78468,"url":"http:\/\/bangla.sitestree.com\/?p=78468","url_meta":{"origin":78460,"position":0},"title":"How DNS Names Work: Example with chat.811tech.ca","author":"Sayed","date":"September 12, 2025","format":false,"excerpt":"Ref: AI Tools\/Open AI\/ChatGPT \" \"Here\u2019s a single, blog-ready explanation that ties all your points together: How DNS Names Work: Example with chat.811tech.ca When you type a web address like chat.811tech.ca into your browser, you\u2019re using the Domain Name System (DNS) to find the right server. Let\u2019s break down what\u2026","rel":"","context":"In &quot;Computer Networks&quot;","block_context":{"text":"Computer Networks","link":"http:\/\/bangla.sitestree.com\/?cat=1978"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":78512,"url":"http:\/\/bangla.sitestree.com\/?p=78512","url_meta":{"origin":78460,"position":1},"title":"Zone vs. Domain vs. Subdomain in DNS","author":"Author-Check- Article-or-Video","date":"September 22, 2025","format":false,"excerpt":"Ref: AI Tools\/OpenAI\/ChatGPT Here\u2019s a blog-ready, copyright-free article explaining Zone vs. Domain vs. Subdomain in DNS. Zone vs. Domain vs. Subdomain in DNS When learning DNS, people often get confused between the terms zone, domain, and subdomain. They sound similar, but each has a specific meaning in the Domain Name\u2026","rel":"","context":"In &quot;Computer Networks&quot;","block_context":{"text":"Computer Networks","link":"http:\/\/bangla.sitestree.com\/?cat=1978"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":78485,"url":"http:\/\/bangla.sitestree.com\/?p=78485","url_meta":{"origin":78460,"position":2},"title":"How an IP Address Gets Resolved to a Name in DNS","author":"Sayed","date":"September 13, 2025","format":false,"excerpt":"REF: AI Tools\/OpenAI\/ChatGPT Great question \ud83d\udc4d \u2014 let\u2019s turn this into a blog-ready, copyright-free post explaining step by step how an IP address gets resolved to a name (reverse lookup) and how the DNS servers, root servers, and TLD servers take part. How an IP Address Gets Resolved to a\u2026","rel":"","context":"In &quot;Computer Networks&quot;","block_context":{"text":"Computer Networks","link":"http:\/\/bangla.sitestree.com\/?cat=1978"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/09\/image-8.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":78466,"url":"http:\/\/bangla.sitestree.com\/?p=78466","url_meta":{"origin":78460,"position":3},"title":"What Does \u201cNamespace\u201d Mean in DNS?","author":"Sayed","date":"September 12, 2025","format":false,"excerpt":"Ref: OpenAI\/ChatGPT\/AI Tools \"What Does \u201cNamespace\u201d Mean in DNS? In the Domain Name System (DNS), a namespace is simply the way all domain names are organized. Think of it as a giant map of names on the internet. The DNS namespace is hierarchical, like a family tree: At the very\u2026","rel":"","context":"In &quot;Computer Networks&quot;","block_context":{"text":"Computer Networks","link":"http:\/\/bangla.sitestree.com\/?cat=1978"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":78523,"url":"http:\/\/bangla.sitestree.com\/?p=78523","url_meta":{"origin":78460,"position":4},"title":"Understanding DNS Lookup and dig Command Output \u2014 A Complete Guide with Examples","author":"Author-Check- Article-or-Video","date":"October 8, 2025","format":false,"excerpt":"REF: AI Tools\/ChatGPT \ud83e\udde0 Understanding DNS Lookup and dig Command Output \u2014 A Complete Guide with Examples If you\u2019ve ever used the internet, you\u2019ve used DNS \u2014 even if you didn\u2019t know it. The Domain Name System (DNS) converts human-friendly names like www.example.com into IP addresses like 93.184.216.34.Let\u2019s explore how\u2026","rel":"","context":"In &quot;Root&quot;","block_context":{"text":"Root","link":"http:\/\/bangla.sitestree.com\/?cat=1"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":78475,"url":"http:\/\/bangla.sitestree.com\/?p=78475","url_meta":{"origin":78460,"position":5},"title":"Partially Qualified Domain Name (PQDN)","author":"Sayed","date":"September 13, 2025","format":false,"excerpt":"Ref: OpenAI\/AI Tools\/ChatGPT Absolutely! Here\u2019s a polished, blog-post-ready version of your explanation on PQDNs: \"Understanding Partially Qualified Domain Names (PQDN) in DNS When working with DNS, you may have heard about Fully Qualified Domain Names (FQDN) and Partially Qualified Domain Names (PQDN). While FQDNs specify the complete path to a\u2026","rel":"","context":"In &quot;Computer Networks&quot;","block_context":{"text":"Computer Networks","link":"http:\/\/bangla.sitestree.com\/?cat=1978"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/09\/image-6.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/09\/image-6.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/09\/image-6.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/09\/image-6.png?resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=78460"}],"version-history":[{"count":1,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78460\/revisions"}],"predecessor-version":[{"id":78461,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78460\/revisions\/78461"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=78460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=78460"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=78460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}