{"id":2078,"date":"2024-03-12T09:10:51","date_gmt":"2024-03-12T09:10:51","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/"},"modified":"2024-03-31T15:14:36","modified_gmt":"2024-03-31T15:14:36","slug":"how-to-check-if-the-port-is-open-on-the-other-side-in-linux","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/","title":{"rendered":"How to check if the port is open on the other side in Linux?"},"content":{"rendered":"

You can use telnet, nc (netcat), or nmap<\/a> to check if the ports of a remote host are open.<\/p>\n

    \n
  1. Utilize the telnet command:<\/li>\n<\/ol>\n

    Telnet is a network protocol that allows for interactive text-based communication between remote hosts. You can use the following command to check if a port is open on a remote host:<\/p>\n

    telnet <host> <port>\r\n<\/code><\/pre>\n
    For example, to check if port 80 is open on the remote host 192.168.1.100, you can execute the following command:<\/p>\n
    telnet 192.168.1.100 80\r\n<\/code><\/pre>\n
    If the port is open, you will see a message indicating successful connection; otherwise, a message indicating connection failure will be displayed.<\/p>\n
      \n
    1. Utilize the nc (netcat) command:<\/li>\n<\/ol>\n
      Netcat (nc) is a command line tool used for handling TCP and UDP connections. You can use the following command to check if a port on a remote host is open:<\/p>\n
      nc -z <host> <port>\r\n<\/code><\/pre>\n
      For example, to check if port 80 is open on the remote host 192.168.1.100, you can execute the following command:<\/p>\n
      nc -z 192.168.1.100 80\r\n<\/code><\/pre>\n
      If the port is open, no output will be displayed; otherwise, a message indicating connection failure will be shown.<\/p>\n
        \n
      1. Utilize the nmap command:<\/li>\n<\/ol>\n
        nmap is a network scanning tool that can assist you in checking the port status of remote hosts. You can use the following command to scan the ports of remote hosts:<\/p>\n
        nmap <host>\r\n<\/code><\/pre>\n
        For example, to scan the port status on the remote host 192.168.1.100, you can execute the following command:<\/p>\n
        nmap 192.168.1.100\r\n<\/code><\/pre>\n
        nmap displays the port status of remote hosts (open, closed, or filtered).<\/p>\n
        Please be aware that you may need to install telnet, nc, or nmap tools in the system in order to execute the commands above.<\/p>\n
         <\/p>\n
        More tutorials<\/p>\n
        How can Linux detect if a remote host’s port is open?(Opens in a new browser tab)<\/span><\/a><\/p>\n
        Using Telnet Commands in Linux\/Unix(Opens in a new browser tab)<\/span><\/a><\/p>\n
        How can you check open ports in CentOS?(Opens in a new browser tab)<\/span><\/a><\/p>\n
        Remote Desktop Protocol on Ubuntu 22.04 by utilizing xrdp.(Opens in a new browser tab)<\/span><\/a><\/p>\n
        Primefaces’ Message, Messages, and Growl components(Opens in a new browser tab)<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
        You can use telnet, nc (netcat), or nmap to check if the ports of a remote host are open. Utilize the telnet command: Telnet is a network protocol that allows for interactive text-based communication between remote hosts. You can use the following command to check if a port is open on a remote host: telnet […]<\/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-2078","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow to check if the port is open on the other side in Linux? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"You can use telnet, nc (netcat), or nmap to check if the ports of a remote host are open.Utilize the telnet command:Telnet is a network\" \/>\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\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to check if the port is open on the other side in Linux?\" \/>\n<meta property=\"og:description\" content=\"You can use telnet, nc (netcat), or nmap to check if the ports of a remote host are open.Utilize the telnet command:Telnet is a network\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-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=\"2024-03-12T09:10:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-31T15:14:36+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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/\"},\"author\":{\"name\":\"Olivia Parker\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9\"},\"headline\":\"How to check if the port is open on the other side in Linux?\",\"datePublished\":\"2024-03-12T09:10:51+00:00\",\"dateModified\":\"2024-03-31T15:14:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/\"},\"wordCount\":342,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-check-if-the-port-is-open-on-the-other-side-in-linux\/\",\"name\":\"How to check if the port is open on the other side in Linux? 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