{"id":23348,"date":"2024-03-16T01:12:27","date_gmt":"2024-03-16T01:12:27","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-open-in-linux\/"},"modified":"2024-03-22T01:03:16","modified_gmt":"2024-03-22T01:03:16","slug":"check-if-the-port-is-open-in-linux","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-open-in-linux\/","title":{"rendered":"Check if the port is open in Linux."},"content":{"rendered":"<p>In Linux systems, you can use the netstat command or the lsof command to check if a port is open.<\/p>\n<ol>\n<li>Use the netstat command:<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>netstat -tuln | grep &lt;\u7aef\u53e3\u53f7&gt;\r\n<\/code><\/pre>\n<p>The -t option displays only TCP protocol ports, the -u option displays only UDP protocol ports, the -l option shows only listening ports, and the -n option displays port numbers in numerical form.<\/p>\n<ol>\n<li>Use the lsof command:<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>lsof -i :&lt;\u7aef\u53e3\u53f7&gt;\r\n<\/code><\/pre>\n<p>The -i option is used to display only network-related information, followed by specifying the port number to be queried.<\/p>\n<p>Both methods can be used to check if a specified port is open and display the corresponding service or process information.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Linux systems, you can use the netstat command or the lsof command to check if a port is open. Use the netstat command: netstat -tuln | grep &lt;\u7aef\u53e3\u53f7&gt; The -t option displays only TCP protocol ports, the -u option displays only UDP protocol ports, the -l option shows only listening ports, and the -n [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-23348","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Check if the port is open in Linux. - Blog - Silicon Cloud<\/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.silicloud.com\/blog\/check-if-the-port-is-open-in-linux\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Check if the port is open in Linux.\" \/>\n<meta property=\"og:description\" content=\"In Linux systems, you can use the netstat command or the lsof command to check if a port is open. 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