{"id":16638,"date":"2026-03-24T05:09:27","date_gmt":"2026-03-24T05:09:27","guid":{"rendered":"https:\/\/cloudmatika.co.id\/?p=16638"},"modified":"2026-07-17T05:54:34","modified_gmt":"2026-07-17T05:54:34","slug":"how-to-open-web-server-ports-on-centos","status":"publish","type":"post","link":"https:\/\/cloudmatika.co.id\/en\/blog-details\/how-to-open-web-server-ports-on-centos\/","title":{"rendered":"Opening Web Server Ports on CentOS"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16638\" class=\"elementor elementor-16638\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f9a716b e-flex e-con-boxed e-con e-parent\" data-id=\"f9a716b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1d52839 elementor-widget elementor-widget-text-editor\" data-id=\"1d52839\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A web server on a VPS requires port configurations to allow public access to hosted websites. The specific ports that need to be opened within iptables are <b>port 80 (HTTP)<\/b> and <b>port 443 (HTTPS)<\/b>. There are two methods to configure this setup:<\/p><h3><b>1: Editing the <\/b><b>\/etc\/sysconfig\/iptables<\/b><b> File<\/b><\/h3><pre>vi \/etc\/sysconfig\/iptables<\/pre><p># Firewall configuration written by system-config-firewall<br \/># Manual customization of this file is not recommended.<br \/>*filter<br \/>:INPUT ACCEPT [0:0]<br \/>:FORWARD ACCEPT [0:0]<br \/>:OUTPUT ACCEPT [0:0]<br \/>-A INPUT -m state &#8211;state ESTABLISHED,RELATED -j ACCEPT<br \/>-A INPUT -p icmp -j ACCEPT<br \/>-A INPUT -i lo -j ACCEPT<br \/>-A INPUT -m state &#8211;state NEW -m tcp -p tcp &#8211;dport 22 -j ACCEPT<br \/>-A INPUT -m state &#8211;state NEW -m tcp -p tcp &#8211;dport 80 -j ACCEPT<br \/>-A INPUT -m state &#8211;state NEW -m tcp -p tcp &#8211;dport 443 -j ACCEPT<br \/>-A INPUT -j REJECT &#8211;reject-with icmp-host-prohibited<br \/>-A FORWARD -j REJECT &#8211;reject-with icmp-host-prohibited<\/p><p><b>2: Using the Command Line Interface (CLI)<\/b><\/p><pre>iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT\niptables -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT\niptables -I INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT\n<\/pre><h3><b>Saving and Restarting iptables<\/b><\/h3><pre>service iptables save<\/pre><p>Next, restart the iptables service to apply the changes:<\/p><pre>service iptables restart<\/pre><p><b>Verifying the Firewall Settings<\/b><\/p><pre>iptables -L<\/pre><p>Chain INPUT (policy ACCEPT)<br \/>target \u00a0 \u00a0 prot opt source \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 destination<br \/>ACCEPT \u00a0 \u00a0 all\u00a0 &#8212;\u00a0 anywhere \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 anywhere\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 state RELATED,ESTABLISHED<br \/>ACCEPT \u00a0 \u00a0 icmp &#8212;\u00a0 anywhere \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 anywhere<br \/>ACCEPT \u00a0 \u00a0 all\u00a0 &#8212;\u00a0 anywhere \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 anywhere<br \/>ACCEPT \u00a0 \u00a0 tcp\u00a0 &#8212;\u00a0 anywhere \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 anywhere\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 state NEW tcp dpt:ssh<br \/>ACCEPT \u00a0 \u00a0 tcp\u00a0 &#8212;\u00a0 anywhere \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 anywhere\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 state NEW tcp dpt:http<br \/>REJECT \u00a0 \u00a0 all\u00a0 &#8212;\u00a0 anywhere \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 anywhere\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 reject-with icmp-host-prohibited<\/p><p>Once verified, you can test the connection by accessing the website hosted on your server via any web browser.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>A web server on a VPS requires port configurations to allow public access to hosted websites. The specific ports that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16639,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[62],"tags":[],"class_list":["post-16638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-support"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Opening Web Server Ports on CentOS<\/title>\n<meta name=\"description\" content=\"A web server on a VPS requires port configurations to allow public access to hosted websites. 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