{"id":1969,"date":"2024-03-12T09:01:28","date_gmt":"2024-03-12T09:01:28","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/"},"modified":"2024-03-22T14:43:25","modified_gmt":"2024-03-22T14:43:25","slug":"how-can-i-change-the-firewall-port-in-centos-7","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/","title":{"rendered":"How can I change the firewall port in CentOS 7?"},"content":{"rendered":"

To modify the port configuration of CentOS 7 firewall, you can follow these steps:<\/p>\n

    \n
  1. Connect to a CentOS 7 server using SSH.<\/li>\n
  2. To check the current firewall status, input the following command:<\/li>\n<\/ol>\n
    sudo systemctl status firewalld\r\n<\/code><\/pre>\n
      \n
    1. If the firewall is currently running, you can use the following command to stop the firewall:<\/li>\n<\/ol>\n
      sudo systemctl stop firewalld\r\n<\/code><\/pre>\n
        \n
      1. To check the current firewall rules, type the following command:<\/li>\n<\/ol>\n
        sudo firewall-cmd --list-all\r\n<\/code><\/pre>\n
          \n
        1. To open the required ports for modification, such as TCP ports 80 and 443, use the following command:<\/li>\n<\/ol>\n
          sudo firewall-cmd --zone=public --add-port=80\/tcp --permanent\r\nsudo firewall-cmd --zone=public --add-port=443\/tcp --permanent\r\n<\/code><\/pre>\n
            \n
          1. Reload the firewall configuration to make the changes take effect.<\/li>\n<\/ol>\n
            sudo firewall-cmd --reload\r\n<\/code><\/pre>\n
              \n
            1. View the new firewall rules.<\/li>\n<\/ol>\n
              sudo firewall-cmd --list-all\r\n<\/code><\/pre>\n
                \n
              1. Finally, activate the firewall and set it to start up automatically.<\/li>\n<\/ol>\n
                sudo systemctl start firewalld\r\nsudo systemctl enable firewalld\r\n<\/code><\/pre>\n
                This successfully modified the port configuration of the CentOS 7<\/a> firewall. Remember to only open necessary ports when modifying firewall rules to ensure server security.<\/p>\n
                 <\/p>\n
                 <\/p>\n
                More tutorials<\/p>\n
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                How can I install MySQL on Rocky Linux 9?(Opens in a new browser tab)<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
                To modify the port configuration of CentOS 7 firewall, you can follow these steps: Connect to a CentOS 7 server using SSH. To check the current firewall status, input the following command: sudo systemctl status firewalld If the firewall is currently running, you can use the following command to stop the firewall: sudo systemctl stop […]<\/p>\n","protected":false},"author":8,"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-1969","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow can I change the firewall port in CentOS 7? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"To modify the port configuration of CentOS 7 firewall, you can follow these steps:Connect to a CentOS 7 server using SSH.To check the current\" \/>\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-can-i-change-the-firewall-port-in-centos-7\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How can I change the firewall port in CentOS 7?\" \/>\n<meta property=\"og:description\" content=\"To modify the port configuration of CentOS 7 firewall, you can follow these steps:Connect to a CentOS 7 server using SSH.To check the current\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/\" \/>\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=\"2024-03-12T09:01:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T14:43:25+00:00\" \/>\n<meta name=\"author\" content=\"William Carter\" \/>\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=\"William Carter\" \/>\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\/how-can-i-change-the-firewall-port-in-centos-7\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/\"},\"author\":{\"name\":\"William Carter\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\"},\"headline\":\"How can I change the firewall port in CentOS 7?\",\"datePublished\":\"2024-03-12T09:01:28+00:00\",\"dateModified\":\"2024-03-22T14:43:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/\"},\"wordCount\":214,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-can-i-change-the-firewall-port-in-centos-7\/\",\"name\":\"How can I change the firewall port in CentOS 7? 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