{"id":4662,"date":"2020-02-03T20:34:44","date_gmt":"2020-02-04T01:34:44","guid":{"rendered":"https:\/\/www.globo.tech\/learning-center\/?p=4662"},"modified":"2020-02-03T20:39:26","modified_gmt":"2020-02-04T01:39:26","slug":"manage-your-reverse-dns-on-the-customer-portal","status":"publish","type":"post","link":"https:\/\/www.globo.tech\/learning-center\/manage-your-reverse-dns-on-the-customer-portal\/","title":{"rendered":"Manage your Reverse DNS on the Customer Portal"},"content":{"rendered":"\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Reverse_DNS_lookup\">Reverse DNS (RDNS)<\/a> is used to resolve IP addresses to domain names. This is the opposite of the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Domain_Name_System\">DNS lookup (Forward Lookup)<\/a> where DNS maps a domain name to an IP address. DNS use A record to determine a domain name&#8217;s IP address while reverse DNS use PTR records to determine an IP address&#8217; associated domain name. In this article, you&#8217;ll see how to manage your RDNS from your Customer Portal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br>Example of DNS Lookup<\/h2>\n\n\n\n<p>Normal DNS lookup queries that domain\u2019s (www.globo.tech) DNS to determine the IP address of the &#8220;www.globo.tech&#8221; domain:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># nslookup www.globo.tech\n Server:         1.1.1.1\n Address:        1.1.1.1#53\n\n Non-authoritative answer:\n Name:   www.globo.tech\n Address: 67.43.229.6\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><br>Example of  RDNS Lookup<\/h2>\n\n\n\n<p>Reverse DNS lookup queries by asking an IP address in which domains are attached to it.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># host 67.43.229.6\n 6.229.43.67.in-addr.arpa domain name pointer globo.tech.<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><br>Differences between DNS and RDNS Lookup<\/h2>\n\n\n\n<p>In short, the RDNS resolves to the GloboTech Instance host which is powering its DNS servers.<\/p>\n\n\n\n<p>The RDNS is mainly used for outbound e-mail servers to trace the origin of an e-mail. This will also add credibility to the e-mail server itself so that the email they are receiving is not malicious spam. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br>How to manage Reverse DNS<\/h2>\n\n\n\n<p>You can manage the RDNS records for any of your <a href=\"https:\/\/www.globo.tech\/cloud-server-pricing\">GloboTech&#8217;s services<\/a> using the Customer Portal.<\/p>\n\n\n\n<p><strong>Step 1:  <\/strong>Login to your GloboTech <a href=\"https:\/\/portal.globo.tech\/access\/login\">Client Area<\/a><\/p>\n\n\n\n<p><strong>Step 2: <\/strong> In the left menu, click on the <strong>NETWORKING<\/strong> tab and then on <strong>Reverse DNS<\/strong>. You should see the assigned IP address of your instance:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.globo.tech\/learning-center\/wp-content\/uploads\/2020\/02\/Edit-RDNS.png\" alt=\"\" class=\"wp-image-4663\" width=\"627\" height=\"333\"\/><\/figure>\n\n\n\n<p><br><strong>Step 3<\/strong>: Click on the <strong>EDIT<\/strong> button and enter the domain name that the IP address should be reporting to and click on the Tab key to apply the changes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.globo.tech\/learning-center\/wp-content\/uploads\/2020\/02\/Config-RDNS.png\" alt=\"\" class=\"wp-image-4664\" width=\"637\" height=\"321\"\/><\/figure>\n\n\n\n<p><br>If the update was successful, you will see the following message.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.globo.tech\/learning-center\/wp-content\/uploads\/2020\/02\/RDNS-Record-Update.png\" alt=\"\" class=\"wp-image-4665\" width=\"536\" height=\"29\"\/><\/figure>\n\n\n\n<p>You can now test the Reverse DNS lookup with the following &#8220;dig&#8221; command:<\/p>\n\n\n\n<p><code> dig -x 173.209.40.131<\/code><\/p>\n\n\n\n<p><br>You should get something like this.  In this example, the Reverse DNS was requested for IP 173.209.40.131, and the authoritative server replied &#8220;test.linuxbuz.com&#8221;:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.globo.tech\/learning-center\/wp-content\/uploads\/2020\/02\/Test-RDNS.png\" alt=\"\" class=\"wp-image-4666\" width=\"689\" height=\"281\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><br>Conclusion<\/h2>\n\n\n\n<p>You now know how to manage your own RDNS for all your <a href=\"https:\/\/www.globo.tech\/dedicated-server-hosting\">GloboTech&#8217;s services<\/a>, trough your Customer Portal access.<\/p>\n\n\n\n<p>Feel free to contact our <a href=\"https:\/\/support.globo.tech\/\">helpdesk <\/a>for assistance with your GloboTech&#8217;s services, if needed.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>A Reverse DNS lookup is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address.<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[153,154],"class_list":["post-4662","post","type-post","status-publish","format-standard","hentry","category-customerportal","tag-rdns","tag-reverse-dns"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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