{"id":15510,"date":"2023-02-15T14:10:01","date_gmt":"2023-02-15T12:10:01","guid":{"rendered":"https:\/\/chisla.ua\/?p=15510"},"modified":"2023-05-28T22:47:44","modified_gmt":"2023-05-28T20:47:44","slug":"check-port-on-remote-linux-system","status":"publish","type":"post","link":"https:\/\/chisla.ua\/en\/check-port-on-remote-linux-system\/","title":{"rendered":"3 Ways to Check if a Port is Open on a Remote Linux System"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"15510\" class=\"elementor elementor-15510\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e59c95c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e59c95c\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-58ad16a\" data-id=\"58ad16a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bf25e50 elementor-widget elementor-widget-heading\" data-id=\"bf25e50\" 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 - v3.9.2 - 21-12-2022 *\/\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><h1 class=\"elementor-heading-title elementor-size-default\">3 Ways to Check if a Port is Open on a Remote Linux System<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-30f4075 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"30f4075\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-85a8041\" data-id=\"85a8041\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3a4eafe elementor-widget elementor-widget-text-editor\" data-id=\"3a4eafe\" 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 - v3.9.2 - 21-12-2022 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;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<ul><li>In this article, we will show you how to check which ports are open on a remote Linux system using three methods.<\/li><\/ul><p><b>This can be done with the following Linux commands.<\/b><\/p><ul><li><b>nc<\/b>: Netcat is a simple Unix utility that reads and writes data over network connections using the TCP or UDP protocol.<\/li><li><b>nmap<\/b>: Nmap (&#8220;Network Mapper&#8221;) is an open source tool for network exploration and security auditing. It was designed to quickly scan large networks.<\/li><li><b>telnet<\/b>: The telnet command is used to communicate interactively with another host using the TELNET protocol.<\/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-64bf278 elementor-widget elementor-widget-heading\" data-id=\"64bf278\" 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-default\">How to check if a port is open on a remote Linux system using nc (netcat) command?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35e3f63 elementor-widget elementor-widget-text-editor\" data-id=\"35e3f63\" 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><strong>nc<\/strong> stands for <strong>netcat<\/strong>.<\/p>\n<p>Netcat is a simple Unix utility that reads and writes data over network connections using the TCP or UDP protocol.&nbsp;<span style=\"background-color: var( --e-global-color-1165183 ); color: var( --e-global-color-primary ); letter-spacing: 0px;\">It is designed to be a reliable &#8220;internal&#8221; tool that can be used directly or easily manipulated by other programs and scripts.&nbsp;<\/span><span style=\"background-color: var( --e-global-color-1165183 ); color: var( --e-global-color-primary ); letter-spacing: 0px;\">At the same time, it is a multi-functional network debugging and exploration tool because it can create almost any type of connection you need and has some interesting built-in features.<\/span><\/p>\n<p>Netcat has three main modes of operation.&nbsp;These are connect mode, listen mode and tunnel mode.<\/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-ec30ceb elementor-widget elementor-widget-text-editor\" data-id=\"ec30ceb\" 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>Lorem ipsum dolor sit amet, consectetur adipiscing elit. 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To automate the payment of orders in the online store, you need to connect online acquiring.<\/div><\/div><\/div>\n<\/div>\n<div class=\"jet-posts__item\">\n\t<div class=\"jet-posts__inner-box\"><div class=\"jet-posts__inner-content\"><h4 class=\"entry-title\"><a href=\"https:\/\/chisla.ua\/en\/cooking-courses-on-cannibalism\/\" target=\"\">Culinary courses on cannibalism<\/a><\/h4><div class=\"entry-excerpt\">Warning! This material is the result of an AI experiment. The task is to generate a text using artificial intelligence on a commercial topic (service), but in fact such a service does not exist and cannot exist. 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It uses deep learning techniques, specifically a transformer neural network architecture, to generate human-like text.<\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>How to check if a port is open on a remote Linux system using various commands &#8211; Netcat, Nmap ,Telnet.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[24,23],"class_list":["post-15510","post","type-post","status-publish","format-standard","hentry","category-notes","tag-linux","tag-ssh","no-thumb"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>3 Ways to Check if a Port is Open on a Remote Linux System<\/title>\n<meta name=\"description\" content=\"In this article, we will show you how to check which ports are open on a remote Linux system using three methods - 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