{"id":193963,"date":"2025-04-08T06:45:00","date_gmt":"2025-04-08T05:45:00","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=193963"},"modified":"2025-04-14T08:45:56","modified_gmt":"2025-04-14T07:45:56","slug":"all-about-dns-attack","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/all-about-dns-attack","title":{"rendered":"DNS Attack: Understanding, Preventing, and Protecting Effectively"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"193963\" class=\"elementor elementor-193963\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88dfcda e-flex e-con-boxed e-con\" data-id=\"88dfcda\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-506a550 elementor-widget elementor-widget-text-editor\" data-id=\"506a550\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><b>DNS attacks have the potential to disrupt the entire network of a company, crippling its operations for several days and causing substantial losses: downtime for websites and company cloud services, malware infections, and more. By understanding the mechanisms behind these attacks and taking appropriate preventive measures, one can effectively safeguard their infrastructure.<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9eac3a3 elementor-widget elementor-widget-text-editor\" data-id=\"9eac3a3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">In October 2016, sites such as Spotify, Netflix, Twitter, and Amazon were inaccessible for 10 hours within the USA. Other major companies impacted included The New York Times and Microsoft. Interestingly, the IT systems of these companies were not at fault. The attacker merely took advantage of a <\/span><b>security flaw in the DNS server<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">These DNS attacks pose a significant Achilles&#8217; heel for web infrastructure. In 2020, it is estimated that they affected <\/span><b>83% of companies in France<\/b><span style=\"font-weight: 400;\">. So, what&#8217;s really happening?<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-31b082f e-flex e-con-boxed e-con\" data-id=\"31b082f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-66f2125 elementor-widget elementor-widget-heading\" data-id=\"66f2125\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-xl\">What is DNS?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc77472 elementor-widget elementor-widget-text-editor\" data-id=\"fc77472\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/datascientest.com\/en\/decoding-dns-exploring-the-domain-name-system-and-its-functions\">The DNS or Domain Name System<\/a> facilitates the correlation between a website address such as madonna.com and the associated <\/span><b>IP address<\/b><span style=\"font-weight: 400;\">, which is a numeric sequence separated by periods.<\/span><\/p><p><span style=\"font-weight: 400;\">This conversion takes place on a DNS server. In France, the principal reference DNS servers are managed by Free, Orange, SFR, and Bouygues Telecom. There are also free alternatives available like <\/span><b>Google Public DNS<\/b><span style=\"font-weight: 400;\">, <a href=\"https:\/\/datascientest.com\/en\/all-about-cloudflare\">CloudFlare<\/a>, and <\/span><b>OpenDNS<\/b><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">How does it work in practice? When a user types &#8220;madonna.com&#8221; in their browser, this expression is sent to a DNS server which translates it into an IP address: 3.33.139.232.<\/span><\/p><p><span style=\"font-weight: 400;\">The steps are as follows:<\/span><\/p><ul><li><span style=\"font-weight: 400;\">The DNS resolver searches for the IP address in its database or local cache. Caching is a technique commonly used on the web to reduce loading times: the cache stores a copy of the most frequently accessed pages and directly provides them to the user.<\/span><\/li><li><span style=\"font-weight: 400;\">If the DNS resolver can&#8217;t find the IP address, it queries other DNS servers, particularly a reference DNS server.<\/span><\/li><li><span style=\"font-weight: 400;\">Once the IP address is found, the resolver communicates it to the <\/span><b>web browser<\/b><span style=\"font-weight: 400;\">. It also stores it in its local cache to quickly provide it to another user making the same request.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce45f1e elementor-widget elementor-widget-text-editor\" data-id=\"ce45f1e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The October 2016 outage affected sites like Amazon, Twitter, Netflix, and Spotify; it was caused by an attack on the DNS servers of a major American player, Dyn. This was a <a href=\"https:\/\/datascientest.com\/en\/all-about-ddos-attacks\">DDoS attack<\/a> \u2013 explained below.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4263c52 elementor-widget elementor-widget-image\" data-id=\"4263c52\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-1.webp\" title=\"dns-attack-datascientest-1\" alt=\"dns-attack-datascientest-1\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-781982c elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"781982c\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Discover our courses<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f02b454 e-flex e-con-boxed e-con\" data-id=\"f02b454\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f64d14c elementor-widget elementor-widget-heading\" data-id=\"f64d14c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">Why is DNS vulnerable?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c3f6a0 elementor-widget elementor-widget-text-editor\" data-id=\"0c3f6a0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The DNS system was primarily designed to ensure ease of use and respond to requests quickly and accurately. Security was not considered in its initial design. The <\/span><b>DNS protocol<\/b><span style=\"font-weight: 400;\"> is based on plain text exchanges, which can make the interception and falsification of requests easier. As a consequence, <a href=\"https:\/\/datascientest.com\/en\/cyber-attacks-definition-and-modus-operandi\">DNS has become a prime target for cyberattacks<\/a>.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-09ce52f e-flex e-con-boxed e-con\" data-id=\"09ce52f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f911176 elementor-widget elementor-widget-heading\" data-id=\"f911176\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">How do DNS attacks work?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-036639c elementor-widget elementor-widget-text-editor\" data-id=\"036639c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">DNS attacks exploit weaknesses within the domain name system (DNS). In most cases, the malicious entity intercepts a <\/span><b>DNS request<\/b><span style=\"font-weight: 400;\"> and sends a counterfeit response before the genuine DNS server has the chance to reply.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-428f069 e-flex e-con-boxed e-con\" data-id=\"428f069\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f643ecd elementor-widget elementor-widget-heading\" data-id=\"f643ecd\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">Types of DNS attacks<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d2db6e2 elementor-widget elementor-widget-heading\" data-id=\"d2db6e2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">DNS Cache Poisoning Attack<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6aac2cb elementor-widget elementor-widget-text-editor\" data-id=\"6aac2cb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">This technique is designed to redirect users to a <\/span><b>fake web platform<\/b><span style=\"font-weight: 400;\">. The exploited vulnerability in this case is the <\/span><b>DNS cache<\/b><span style=\"font-weight: 400;\">. Incorrect IP addresses are inserted into it, potentially affecting tens of thousands of users.<\/span><\/p><p><span style=\"font-weight: 400;\">When a visitor types an address, such as that of an online e-commerce site, they are redirected to a <\/span><b>fraudulent site<\/b><span style=\"font-weight: 400;\">, risking the theft of their username and password.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbd3654 elementor-widget elementor-widget-heading\" data-id=\"dbd3654\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">DDoS Amplification Attack<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9016ba elementor-widget elementor-widget-text-editor\" data-id=\"f9016ba\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">This type of attack primarily targets <\/span><b>high-traffic websites<\/b><span style=\"font-weight: 400;\"> like those belonging to Sony or Microsoft. A distributed denial of service, or DDoS attack, aims to render an online service unavailable by overwhelming it with traffic from various sources. One of the most notable DDoS attacks occurred when Cloudflare endured 26 million requests per second in 2022.<\/span><\/p><p><span style=\"font-weight: 400;\">In a DDoS amplification attack, an attacker uses <\/span><b>open servers<\/b><span style=\"font-weight: 400;\"> to escalate the volume of traffic targeted at a victim, thus overwhelming it. The attacker, using a botnet, instructs a network of infected computers to send thousands of requests, potentially leading to a system crash.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dd2d8a elementor-widget elementor-widget-image\" data-id=\"7dd2d8a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"571\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-2.webp\" class=\"attachment-full size-full wp-image-193967\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-2.webp 1000w, https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-2-300x171.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-2-768x439.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-204709f elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"204709f\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Find a course for you<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cea4b5 elementor-widget elementor-widget-heading\" data-id=\"5cea4b5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">DNS Hijacking<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35978b7 elementor-widget elementor-widget-text-editor\" data-id=\"35978b7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">This involves manipulating DNS records to reroute DNS requests to other destinations. The techniques used may involve compromising DNS servers or employing a man-in-the-middle attack, where a hacker intercepts and modifies DNS requests.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b0a8b0 elementor-widget elementor-widget-heading\" data-id=\"8b0a8b0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">TCP SYN Flood<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f3aaab elementor-widget elementor-widget-text-editor\" data-id=\"8f3aaab\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">This is another form of denial of service attack: it involves sending a rapid series of <\/span><b>SYN requests<\/b><span style=\"font-weight: 400;\"> (a TCP protocol message used to establish a connection between two computers) to flood the server, rendering it incapable of responding to legitimate traffic.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11ce1a2 elementor-widget elementor-widget-heading\" data-id=\"11ce1a2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Domain Generation Algorithm Attack (DGA)<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d5c7385 elementor-widget elementor-widget-text-editor\" data-id=\"d5c7385\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Here, an attacker generates numerous random domain names to avoid detection and assist in the proliferation of <\/span><b>malware<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07d0de6 elementor-widget elementor-widget-heading\" data-id=\"07d0de6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Cloaking Attack<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38a6c94 elementor-widget elementor-widget-text-editor\" data-id=\"38a6c94\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The attacker manipulates DNS to create a distraction and thereby confuse <\/span><b>security systems<\/b><span style=\"font-weight: 400;\">. The objective is to execute a far more damaging attack immediately following this distraction.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7eac68d e-flex e-con-boxed e-con\" data-id=\"7eac68d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aca12bc elementor-widget elementor-widget-heading\" data-id=\"aca12bc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">How to Prevent DNS Attacks?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3d5175 elementor-widget elementor-widget-heading\" data-id=\"e3d5175\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Implement DNSSEC<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-86a0369 elementor-widget elementor-widget-text-editor\" data-id=\"86a0369\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">DNSSEC (<\/span><b>Domain Name System Security Extensions<\/b><span style=\"font-weight: 400;\">) is an extension that adds a level of authentication and integrity to DNS responses. It uses digital signatures to verify DNS data.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee65d14 elementor-widget elementor-widget-heading\" data-id=\"ee65d14\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Logging<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21ec34e elementor-widget elementor-widget-text-editor\" data-id=\"21ec34e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">By logging requests sent to DNS servers, it becomes possible to <\/span><b>identify anomalies<\/b><span style=\"font-weight: 400;\"> and conduct a thorough analysis.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5812ada elementor-widget elementor-widget-heading\" data-id=\"5812ada\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Access Restriction<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7098e85 elementor-widget elementor-widget-text-editor\" data-id=\"7098e85\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Limiting the use of DNS resolvers to users identified as authorized can prevent cache <\/span><b>poisoning<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81153d8 elementor-widget elementor-widget-heading\" data-id=\"81153d8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Backup of DNS Data<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9593e9a elementor-widget elementor-widget-text-editor\" data-id=\"9593e9a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Maintaining copies on other servers ensures an easy replacement for the data from a <\/span><b>compromised DNS server<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9aa517 elementor-widget elementor-widget-heading\" data-id=\"a9aa517\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Deploy a Dedicated DNS Protection<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-201b875 elementor-widget elementor-widget-text-editor\" data-id=\"201b875\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Subscribing to a DNS security service from a third-party provider is often a sound choice.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c20249 elementor-widget elementor-widget-image\" data-id=\"6c20249\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"571\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-3.webp\" class=\"attachment-full size-full wp-image-193966\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-3.webp 1000w, https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-3-300x171.webp 300w, https:\/\/datascientest.com\/en\/files\/2025\/02\/dns-attack-datascientest-3-768x439.webp 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b184e0b elementor-align-center button-principal elementor-widget elementor-widget-button\" data-id=\"b184e0b\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Become a cybersecurity expert<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d92cb8e e-flex e-con-boxed e-con\" data-id=\"d92cb8e\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1811f8d elementor-widget elementor-widget-html\" data-id=\"1811f8d\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": 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By understanding the mechanisms behind these attacks and taking appropriate preventive measures, one can effectively safeguard their infrastructure. In October 2016, [&hellip;]<\/p>\n","protected":false},"author":45,"featured_media":193965,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2426],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>DNS Attack: Understanding, Preventing, and Protecting Effectively<\/title>\n<meta name=\"description\" content=\"Discover what a DNS attack is, its different forms, its impacts on your site&#039;s security, and the best practices to protect yourself from it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/en\/all-about-dns-attack\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" 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