{"id":5328,"date":"2018-06-17T03:04:02","date_gmt":"2018-06-17T03:04:02","guid":{"rendered":"https:\/\/www.truehost.co.ke\/support\/?post_type=ht_kb&#038;p=5328"},"modified":"2025-04-09T15:09:05","modified_gmt":"2025-04-09T15:09:05","password":"","slug":"manually-configure-reverse-dns-linux-vps","status":"publish","type":"docs","link":"https:\/\/truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/","title":{"rendered":"Manually configure reverse DNS in Linux VPS"},"content":{"rendered":"<p>rDNS is configured on a zone file. This zone file teaches our name servers to resolve a host from an IP address. The file will be called 10.10.10.10.db, where 10.10.10.10 is our server IP address. Also, save this zone file in path \/var\/named.<\/p>\n<p>One of the foremost importances of reverse DNS or rDNS is spam filtering. A server that sends emails needs to have rDNS configured for it\u2019s emails to be received by almost all other servers. If not, the emails will be treated as Spam and hence blocked or dumped to Spam.<\/p>\n<p>The content of the file is as follows:<\/p>\n<pre class=\"western\"><b>;<\/b>\r\n<b>; BIND reverse data file for 0.10.10.in-addr.arpa<\/b>\r\n<b>;<\/b>\r\n<b>$TTL    604800<\/b>\r\n<b>0.10.10.in-addr.arpa.      IN      SOA     ns1.example.com. <\/b>\r\n<b>admin.example.com. (<\/b>\r\n                          <b>1         ; Serial<\/b>\r\n                          <b>3h       ; Refresh after 3 hours<\/b>\r\n                          <b>1h       ; Retry after 1 hour<\/b>\r\n                          <b>1w       ; Expire after 1 week<\/b>\r\n                          <b>1h )     ; Negative caching TTL of 1 day<\/b>\r\n<b>;<\/b>\r\n<b>0.10.10.in-addr.arpa.       IN      NS      ns1.example.com.<\/b>\r\n<b>0.10.10.in-addr.arpa.       IN      NS      ns2.example.com.<\/b>\r\n<b>10.10.10.10.in-addr.arpa.   IN      PTR     example.com.<\/b><\/pre>\n<p>NOTE: Make sure to replace 10.10.10.10 with your server IP and example.com, with your domain name.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>rDNS is configured on a zone file. This zone file teaches our name servers to resolve a host from an IP address. The file will be called 10.10.10.10.db, where 10.10.10.10 is our server IP address. Also, save this zone file in path \/var\/named. One of the foremost importances of reverse DNS or rDNS is spam [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_eb_attr":"","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"doc_category":[2140],"doc_tag":[],"class_list":["post-5328","docs","type-docs","status-publish","hentry","doc_category-dns"],"year_month":"2026-06","word_count":175,"total_views":0,"reactions":{"happy":0,"normal":0,"sad":0},"author_info":{"name":"w m","author_nicename":"wm","author_url":"https:\/\/truehost.com\/support\/author\/wm\/"},"doc_category_info":[{"term_name":"DNS","term_url":"https:\/\/truehost.com\/support\/docs-category\/dns\/"}],"doc_tag_info":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Manually configure reverse DNS in Linux VPS -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Manually configure reverse DNS in Linux VPS -\" \/>\n<meta property=\"og:description\" content=\"rDNS is configured on a zone file. This zone file teaches our name servers to resolve a host from an IP address. The file will be called 10.10.10.10.db, where 10.10.10.10 is our server IP address. Also, save this zone file in path \/var\/named. One of the foremost importances of reverse DNS or rDNS is spam [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-09T15:09:05+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/knowledge-base\\\/manually-configure-reverse-dns-linux-vps\\\/\",\"url\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/knowledge-base\\\/manually-configure-reverse-dns-linux-vps\\\/\",\"name\":\"Manually configure reverse DNS in Linux VPS -\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/#website\"},\"datePublished\":\"2018-06-17T03:04:02+00:00\",\"dateModified\":\"2025-04-09T15:09:05+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/knowledge-base\\\/manually-configure-reverse-dns-linux-vps\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.truehost.com\\\/support\\\/knowledge-base\\\/manually-configure-reverse-dns-linux-vps\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/knowledge-base\\\/manually-configure-reverse-dns-linux-vps\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Manually configure reverse DNS in Linux VPS\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/#website\",\"url\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/\",\"name\":\"\",\"description\":\"Help In a Click\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/#organization\",\"name\":\"Truehost Kenya\",\"url\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/truehost.com\\\/support\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/cropped-image_2026-04-16_174808866.png\",\"contentUrl\":\"https:\\\/\\\/truehost.com\\\/support\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/cropped-image_2026-04-16_174808866.png\",\"width\":240,\"height\":48,\"caption\":\"Truehost Kenya\"},\"image\":{\"@id\":\"https:\\\/\\\/www.truehost.com\\\/support\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Manually configure reverse DNS in Linux VPS -","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/","og_locale":"en_US","og_type":"article","og_title":"Manually configure reverse DNS in Linux VPS -","og_description":"rDNS is configured on a zone file. This zone file teaches our name servers to resolve a host from an IP address. The file will be called 10.10.10.10.db, where 10.10.10.10 is our server IP address. Also, save this zone file in path \/var\/named. One of the foremost importances of reverse DNS or rDNS is spam [&hellip;]","og_url":"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/","article_modified_time":"2025-04-09T15:09:05+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/","url":"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/","name":"Manually configure reverse DNS in Linux VPS -","isPartOf":{"@id":"https:\/\/www.truehost.com\/support\/#website"},"datePublished":"2018-06-17T03:04:02+00:00","dateModified":"2025-04-09T15:09:05+00:00","breadcrumb":{"@id":"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.truehost.com\/support\/knowledge-base\/manually-configure-reverse-dns-linux-vps\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.truehost.com\/support\/"},{"@type":"ListItem","position":2,"name":"Manually configure reverse DNS in Linux VPS"}]},{"@type":"WebSite","@id":"https:\/\/www.truehost.com\/support\/#website","url":"https:\/\/www.truehost.com\/support\/","name":"","description":"Help In a Click","publisher":{"@id":"https:\/\/www.truehost.com\/support\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.truehost.com\/support\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.truehost.com\/support\/#organization","name":"Truehost Kenya","url":"https:\/\/www.truehost.com\/support\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.truehost.com\/support\/#\/schema\/logo\/image\/","url":"https:\/\/truehost.com\/support\/wp-content\/uploads\/2026\/04\/cropped-image_2026-04-16_174808866.png","contentUrl":"https:\/\/truehost.com\/support\/wp-content\/uploads\/2026\/04\/cropped-image_2026-04-16_174808866.png","width":240,"height":48,"caption":"Truehost Kenya"},"image":{"@id":"https:\/\/www.truehost.com\/support\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/docs\/5328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/comments?post=5328"}],"version-history":[{"count":1,"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/docs\/5328\/revisions"}],"predecessor-version":[{"id":5329,"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/docs\/5328\/revisions\/5329"}],"wp:attachment":[{"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/media?parent=5328"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/doc_category?post=5328"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/truehost.com\/support\/wp-json\/wp\/v2\/doc_tag?post=5328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}