{"id":23264,"date":"2024-03-16T01:06:09","date_gmt":"2024-03-16T01:06:09","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/"},"modified":"2024-03-22T00:51:10","modified_gmt":"2024-03-22T00:51:10","slug":"check-if-the-port-is-available-in-linux","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/","title":{"rendered":"Check if the port is available in Linux."},"content":{"rendered":"

On Linux, you can use the following command to check if a port is available:<\/p>\n

    \n
  1. Using the netstat command:<\/li>\n<\/ol>\n
    netstat -tuln | grep <\u7aef\u53e3\u53f7>\r\n<\/code><\/pre>\n
    This command will list all the ports that are currently being listened to, and search for the specified port number. If the port number is listed, it means the port is being used; otherwise, it is available.<\/p>\n
      \n
    1. Use the lsof command:<\/li>\n<\/ol>\n
      lsof -i :<\u7aef\u53e3\u53f7>\r\n<\/code><\/pre>\n
      This command will display all processes using the specified port. If the output is empty, it means the port is available.<\/p>\n
        \n
      1. Use the nc command:<\/li>\n<\/ol>\n
        nc -zv <IP\u5730\u5740> <\u7aef\u53e3\u53f7>\r\n<\/code><\/pre>\n
        This command tries to connect to the specified IP address and port number. If the connection is successful, it means the port is available. If the connection fails or is refused, it means the port is not available.<\/p>\n
          \n
        1. Use the telnet command:<\/li>\n<\/ol>\n
          telnet <IP\u5730\u5740> <\u7aef\u53e3\u53f7>\r\n<\/code><\/pre>\n
          This command will attempt to connect to the specified IP address and port number. If the connection is successful, it means the port is available. If the connection fails or is refused, it means the port is not available.<\/p>\n
          Please note that the  in the above command should be replaced with the port number you want to check, and the  can be replaced with a specific IP address or hostname.<\/p>\n","protected":false},"excerpt":{"rendered":"
          On Linux, you can use the following command to check if a port is available: Using the netstat command: netstat -tuln | grep <\u7aef\u53e3\u53f7> This command will list all the ports that are currently being listened to, and search for the specified port number. If the port number is listed, it means the port is […]<\/p>\n","protected":false},"author":11,"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-23264","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nCheck if the port is available 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-available-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 available in Linux.\" \/>\n<meta property=\"og:description\" content=\"On Linux, you can use the following command to check if a port is available: Using the netstat command: netstat -tuln | grep <\u7aef\u53e3\u53f7> This command will list all the ports that are currently being listened to, and search for the specified port number. If the port number is listed, it means the port is […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T01:06:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T00:51:10+00:00\" \/>\n<meta name=\"author\" content=\"Olivia Parker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Olivia Parker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/\"},\"author\":{\"name\":\"Olivia Parker\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9\"},\"headline\":\"Check if the port is available in Linux.\",\"datePublished\":\"2024-03-16T01:06:09+00:00\",\"dateModified\":\"2024-03-22T00:51:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/\"},\"wordCount\":205,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/check-if-the-port-is-available-in-linux\/\",\"name\":\"Check if the port is available in Linux. - 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