{"id":5483,"date":"2021-04-01T17:57:37","date_gmt":"2021-04-01T17:57:37","guid":{"rendered":"https:\/\/ded9.com\/?p=5483"},"modified":"2025-11-12T08:13:32","modified_gmt":"2025-11-12T08:13:32","slug":"what-is-dns","status":"publish","type":"post","link":"https:\/\/ded9.com\/tr\/what-is-dns\/","title":{"rendered":"What Is DNS?"},"content":{"rendered":"<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">In the past, access to system information on a network was only possible through IPs.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"1\">In a network, communication between clients and servers is established by IP addresses.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"2\">Of course, remembering the IPs associated with each site or system on the network is not easy.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"3\">Instead, it&#8217;s easier to remember a name for each IP.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"4\">Therefore, they assigned a specific name to the IP of each site or system.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"5\">For this purpose, a protocol called DNS, or Domain Name System, was developed.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"6\">This protocol is used to translate the names of host systems or their domains into IPs.<\/span> <span class=\"JLqJ4b ChMk0b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"7\">In the following, we will become more familiar with this protocol.<\/span><\/span><\/p>\n<h2><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">What is DNS?<\/span><\/span><\/h2>\n<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> DNS is one of the most widely used protocols on the Internet, and it was introduced in 1984. As mentioned, in order to simplify the process of accessing the information of each site, a domain name (Domain Name) was considered for each of them. Every website on the Internet has its own unique domain and is known through it.<\/span><\/span><\/p>\n<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">Of course, in a network, communication between clients and servers is established via <a href=\"https:\/\/ded9.com\/static-ip-dynamic-ip-and-floating-ip-whats-the-difference\/\">IP<\/a>. Therefore, DNSs were used to convert domain names to IP addresses. DNS is a distributed database in which the domain names and IP addresses of sites are stored. DNS works like a phonebook. Phonebooks list each person&#8217;s name and phone number. In DNSs, domain names are the names of people in the phonebook, and phone numbers are the IPs of sites. If this protocol is not used on the Internet to translate domains, they will have to log in to their different IP sites each time.<\/span><\/span><\/p>\n<h3><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">How does DNS work?<\/span><\/span><\/h3>\n<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> You may be wondering how DNS organizes and identifies domains. The structure of this protocol is designed in such a way that it is not necessary to be aware of all registered domains. In simpler terms, this protocol does not necessarily maintain the domain but processes and ultimately identifies them. To this end, website domains follow a hierarchical structure. In this protocol, the domain of sites is examined step by step from right to left and finally identified. The structure of each domain consists of 5 main parts, which are: <\/span><\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/DNS_root_zone\" target=\"_blank\" rel=\"noopener\"><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">Root Domain<\/span><\/span><\/a><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> Top Level<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> Domain Second<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> Level Domain<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> Subdomain Host Name<\/span><\/span><\/li>\n<\/ul>\n<p><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">Top-Level Domains are divided into seven general categories and more than 100 country and regional domains. Of course, many domains have been defined on the Internet so far. These domains are used at the end of each address, and the type and nature of the user site are indicated. DNSs identify the search area based on these domains to find the equivalent IP. General domains that are three letters are:<\/span><\/span><\/p>\n<ul>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\">com. Sites that use this domain are identified as economic and commercial entities.<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> edu. The owners of this domain are considered to be scientific or academic institutions.<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> gov. This set of domains is reserved for US government agencies.<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> int. The owner of this domain is one of the international organizations (such as UNESCO, FAO, &#8230;).<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> mil. This domain is used for military organizations around the world.<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> net.<\/span><\/span><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> Sites that use this domain are considered one of the network service providers.<\/span><\/span><\/li>\n<li><span class=\"VIiyi\" lang=\"en\"><span class=\"JLqJ4b\" data-language-for-alternatives=\"en\" data-language-to-translate-into=\"fa\" data-phrase-index=\"0\"> org. The owner of this domain is one of the non-profit organizations.<\/span><\/span><\/li>\n<\/ul>\n<h2>FAQ<\/h2>\n<div id=\"rank-math-rich-snippet-wrapper\"><div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-1\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">What is DNS and how does it work?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>DNS (Domain Name System) converts domain names like \u201cwww.example.com\u201d<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-2\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">What are the main types of DNS servers involved in name resolution?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Key types include: \u2013 Recursive resolvers that receive queries from users\u2019 devices. \u2013 Root nameservers, which are at the top of the DNS hierarchy. \u2013 TLD (Top-Level Domain) nameservers (e.g., for \u201c.com\u201d, \u201c.net\u201d). \u2013 Authoritative nameservers, which hold the definitive DNS records for a domain.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-3\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Why is DNS important for websites and internet connectivity?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Because without DNS you\u2019d have to remember numeric IP addresses for every website you wanted to visit. DNS makes navigation manageable and enables scalable, distributed internet infrastructure.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In the past, access to system information on a network was only possible through IPs. In a network, communication between clients and servers is established by IP addresses. Of course, remembering the IPs associated with each site or system on the network is not easy. Instead, it&#8217;s easier to remember a name for each IP. [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":5484,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1043],"tags":[1377,1378],"class_list":["post-5483","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-web","tag-domain","tag-sub-domain"],"acf":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/posts\/5483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/comments?post=5483"}],"version-history":[{"count":3,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/posts\/5483\/revisions"}],"predecessor-version":[{"id":265296,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/posts\/5483\/revisions\/265296"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/media\/5484"}],"wp:attachment":[{"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/media?parent=5483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/categories?post=5483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ded9.com\/tr\/wp-json\/wp\/v2\/tags?post=5483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}