Cách cài đặt tường lửa UFW trên Ubuntu 16.04 (P1)

{"success":true,"head":"<title>Cách cài đặt tường lửa UFW trên Ubuntu 16.04 (P1) - CyStack Blog</title>\n<meta name=\"description\" content=\"UFW (Uncomplicated Firewall) là một giao diện với iptables nhằm hướng tới việc đơn giản hoá quá trình cấu hình tường lửa. Nếu bạn đang tìm kiếm công cụ nhằm nâng cao bảo mật mạng của mình thì UFW sẽ là sự lựa chọn đúng đắn dành cho bạn, hướng dẫn cách cài đặt tường lửa UFW trên Ubuntu 16.04\"/>\n<meta name=\"robots\" content=\"nofollow, noindex\"/>\n<meta property=\"og:locale\" content=\"en_US\" />\n<meta property=\"og:type\" content=\"article\" />\n<meta property=\"og:title\" content=\"Cách cài đặt tường lửa UFW trên Ubuntu 16.04 (P1) - CyStack Blog\" />\n<meta property=\"og:description\" content=\"UFW (Uncomplicated Firewall) là một giao diện với iptables nhằm hướng tới việc đơn giản hoá quá trình cấu hình tường lửa. Nếu bạn đang tìm kiếm công cụ nhằm nâng cao bảo mật mạng của mình thì UFW sẽ là sự lựa chọn đúng đắn dành cho bạn, hướng dẫn cách cài đặt tường lửa UFW trên Ubuntu 16.04\" />\n<meta property=\"og:url\" content=\"https://blog.cystack.org/vi/blog/2018/01/25/cach-cai-dat-tuong-lua-voi-ufw-tren-ubuntu-16-04-p1/\" />\n<meta property=\"og:site_name\" content=\"CyStack Blog\" />\n<meta property=\"article:author\" content=\"CEO@CyStack\" />\n<meta property=\"article:tag\" content=\"an ninh mạng\" />\n<meta property=\"article:tag\" content=\"an toàn thông tin\" />\n<meta property=\"article:tag\" content=\"CyStack\" />\n<meta property=\"article:tag\" content=\"CyStack Platform\" />\n<meta property=\"article:tag\" content=\"CyStack Security\" />\n<meta property=\"article:tag\" content=\"firewall with UFW\" />\n<meta property=\"article:tag\" content=\"hướng dẫn cài đặt\" />\n<meta property=\"article:tag\" content=\"tường lửa\" />\n<meta property=\"article:tag\" content=\"tutorials\" />\n<meta property=\"article:tag\" content=\"Ubuntu\" />\n<meta property=\"article:tag\" content=\"vi\" />\n<meta property=\"article:section\" content=\"An toàn vận hành\" />\n<meta property=\"og:updated_time\" content=\"2026-06-23T20:09:45+07:00\" />\n<meta property=\"og:image\" content=\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\" />\n<meta property=\"og:image:secure_url\" content=\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\" />\n<meta property=\"og:image:width\" content=\"1920\" />\n<meta property=\"og:image:height\" content=\"1081\" />\n<meta property=\"og:image:alt\" content=\"cài đặt tường lửa UFW trên Ubuntu\" />\n<meta property=\"og:image:type\" content=\"image/png\" />\n<meta property=\"article:published_time\" content=\"2018-01-25T17:47:45+07:00\" />\n<meta property=\"article:modified_time\" content=\"2026-06-23T20:09:45+07:00\" />\n<meta name=\"twitter:card\" content=\"summary_large_image\" />\n<meta name=\"twitter:title\" content=\"Cách cài đặt tường lửa UFW trên Ubuntu 16.04 (P1) - CyStack Blog\" />\n<meta name=\"twitter:description\" content=\"UFW (Uncomplicated Firewall) là một giao diện với iptables nhằm hướng tới việc đơn giản hoá quá trình cấu hình tường lửa. Nếu bạn đang tìm kiếm công cụ nhằm nâng cao bảo mật mạng của mình thì UFW sẽ là sự lựa chọn đúng đắn dành cho bạn, hướng dẫn cách cài đặt tường lửa UFW trên Ubuntu 16.04\" />\n<meta name=\"twitter:image\" content=\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\" />\n<meta name=\"twitter:label1\" content=\"Written by\" />\n<meta name=\"twitter:data1\" content=\"Trung Nguyen\" />\n<meta name=\"twitter:label2\" content=\"Time to read\" />\n<meta name=\"twitter:data2\" content=\"4 minutes\" />\n<script type=\"application/ld+json\" class=\"rank-math-schema\">{\"@context\":\"https://schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https://blog.cystack.org/#organization\",\"name\":\"CyStack\",\"url\":\"https://blog.cystack.org\"},{\"@type\":\"WebSite\",\"@id\":\"https://blog.cystack.org/#website\",\"url\":\"https://blog.cystack.org\",\"name\":\"CyStack\",\"publisher\":{\"@id\":\"https://blog.cystack.org/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\",\"url\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\",\"width\":\"1920\",\"height\":\"1081\",\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https://blog.cystack.org/vi/blog/2018/01/25/cach-cai-dat-tuong-lua-voi-ufw-tren-ubuntu-16-04-p1/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":\"1\",\"item\":{\"@id\":\"https://blog.cystack.org\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":\"2\",\"item\":{\"@id\":\"https://blog.cystack.org/vi/blog/2018/01/25/cach-cai-dat-tuong-lua-voi-ufw-tren-ubuntu-16-04-p1/\",\"name\":\"C\\u00e1ch c\\u00e0i \\u0111\\u1eb7t t\\u01b0\\u1eddng l\\u1eeda UFW tr\\u00ean Ubuntu 16.04 (P1)\"}}]},{\"@type\":\"WebPage\",\"@id\":\"https://blog.cystack.org/vi/blog/2018/01/25/cach-cai-dat-tuong-lua-voi-ufw-tren-ubuntu-16-04-p1/#webpage\",\"url\":\"https://blog.cystack.org/vi/blog/2018/01/25/cach-cai-dat-tuong-lua-voi-ufw-tren-ubuntu-16-04-p1/\",\"name\":\"C\\u00e1ch c\\u00e0i \\u0111\\u1eb7t t\\u01b0\\u1eddng l\\u1eeda UFW tr\\u00ean Ubuntu 16.04 (P1) - CyStack Blog\",\"datePublished\":\"2018-01-25T17:47:45+07:00\",\"dateModified\":\"2026-06-23T20:09:45+07:00\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/#website\"},\"primaryImageOfPage\":{\"@id\":\"https://s.cystack.net/resource/home/content/03133810/Thumbnail-CyStack.png\"},\"inLanguage\":\"en-US\",\"breadcrumb\":{\"@id\":\"https://blog.cystack.org/vi/blog/2018/01/25/cach-cai-dat-tuong-lua-voi-ufw-tren-ubuntu-16-04-p1/#breadcrumb\"}},{\"@type\":\"Person\",\"@id\":\"https://blog.cystack.org/author/trungnh/\",\"name\":\"Trung Nguyen\",\"url\":\"https://blog.cystack.org/author/trungnh/\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https://secure.gravatar.com/avatar/5e1e19d9b81295eeafdbc4175f18cc5b99a688411b0b5a2189c63881dff568b1?s=96&amp;d=mm&amp;r=g\",\"url\":\"https://secure.gravatar.com/avatar/5e1e19d9b81295eeafdbc4175f18cc5b99a688411b0b5a2189c63881dff568b1?s=96&amp;d=mm&amp;r=g\",\"caption\":\"Trung Nguyen\",\"inLanguage\":\"en-US\"},\"sameAs\":[\"CEO@CyStack\"],\"worksFor\":{\"@id\":\"https://blog.cystack.org/#organization\"}},{\"@type\":\"BlogPosting\",\"headline\":\"C\\u00e1ch c\\u00e0i \\u0111\\u1eb7t t\\u01b0\\u1eddng l\\u1eeda UFW tr\\u00ean Ubuntu 16.04 (P1) - CyStack Blog\",\"keywords\":\"c\\u00e0i \\u0111\\u1eb7t t\\u01b0\\u1eddng l\\u1eeda UFW tr\\u00ean Ubuntu\",\"datePublished\":\"2018-01-25T17:47:45+07:00\",\"dateModified\":\"2026-06-23T20:09:45+07:00\",\"author\":{\"@id\":\"https://blog.cystack.org/author/trungnh/\",\"name\":\"Trung Nguyen\"},\"publisher\":{\"@id\":\"https://blog.cystack.org/#organization\"},\"description\":\"UFW (Uncomplicated Firewall) l\\u00e0 m\\u1ed9t giao di\\u1ec7n v\\u1edbi iptables nh\\u1eb1m h\\u01b0\\u1edbng t\\u1edbi vi\\u1ec7c \\u0111\\u01a1n gi\\u1ea3n ho\\u00e1 qu\\u00e1 tr\\u00ecnh c\\u1ea5u h\\u00ecnh t\\u01b0\\u1eddng l\\u1eeda. 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