Iptables Firewall hoạt động như thế nào?
08/09/2025
Về tác giả
I have over 5 years of experience writing technical documentation for tech products, making them accessible and user-friendly. My focus is always on providing clear and precise information.
@#@
Tôi đã có hơn 5 năm kinh nghiệm viết tài liệu kỹ thuật cho các sản phẩm công nghệ, giúp người dùng dễ dàng tiếp cận và sử dụng. Tôi luôn tập trung vào việc cung cấp thông tin chính xác và dễ hiểu.
Cập nhật thông tin mới nhấtNhận các thông tin mới nhất về mối đe dọa, báo cáo an ninh mạng từ CyStack về hòm thư điện tử của bạn
{"success":true,"head":"<title>Iptables Firewall hoạt động như thế nào? - CyStack Tutorial</title>\n<meta name=\"description\" content=\"Tìm hiểu Iptables Firewall trong Linux: cách cài đặt, cấu hình và quản lý tường lửa để bảo mật hệ thống hiệu quả.\"/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-video-preview:-1, max-image-preview:large\"/>\n<link rel=\"canonical\" href=\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/\" />\n<meta property=\"og:locale\" content=\"en_US\" />\n<meta property=\"og:type\" content=\"article\" />\n<meta property=\"og:title\" content=\"Iptables Firewall hoạt động như thế nào? - CyStack Tutorial\" />\n<meta property=\"og:description\" content=\"Tìm hiểu Iptables Firewall trong Linux: cách cài đặt, cấu hình và quản lý tường lửa để bảo mật hệ thống hiệu quả.\" />\n<meta property=\"og:url\" content=\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/\" />\n<meta property=\"og:site_name\" content=\"CyStack Tutorial\" />\n<meta property=\"article:tag\" content=\"vi\" />\n<meta property=\"article:section\" content=\"Firewall\" />\n<meta property=\"og:image\" content=\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\" />\n<meta property=\"og:image:secure_url\" content=\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\" />\n<meta property=\"og:image:width\" content=\"1200\" />\n<meta property=\"og:image:height\" content=\"630\" />\n<meta property=\"og:image:alt\" content=\"Iptables Firewall hoạt động như thế nào?\" />\n<meta property=\"og:image:type\" content=\"image/jpeg\" />\n<meta property=\"article:published_time\" content=\"2025-09-08T17:20:55+07:00\" />\n<meta name=\"twitter:card\" content=\"summary_large_image\" />\n<meta name=\"twitter:title\" content=\"Iptables Firewall hoạt động như thế nào? - CyStack Tutorial\" />\n<meta name=\"twitter:description\" content=\"Tìm hiểu Iptables Firewall trong Linux: cách cài đặt, cấu hình và quản lý tường lửa để bảo mật hệ thống hiệu quả.\" />\n<meta name=\"twitter:image\" content=\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\" />\n<meta name=\"twitter:label1\" content=\"Written by\" />\n<meta name=\"twitter:data1\" content=\"Chris Pham\" />\n<meta name=\"twitter:label2\" content=\"Time to read\" />\n<meta name=\"twitter:data2\" content=\"5 minutes\" />\n<script type=\"application/ld+json\" class=\"rank-math-schema\">{\"@context\":\"https://schema.org\",\"@graph\":[{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https://blog.cystack.org/tutorial/#person\",\"name\":\"CyStack Tutorial\"},{\"@type\":\"WebSite\",\"@id\":\"https://blog.cystack.org/tutorial/#website\",\"url\":\"https://blog.cystack.org/tutorial\",\"name\":\"CyStack Tutorial\",\"publisher\":{\"@id\":\"https://blog.cystack.org/tutorial/#person\"},\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\",\"url\":\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\",\"width\":\"1200\",\"height\":\"630\",\"caption\":\"Iptables Firewall ho\\u1ea1t \\u0111\\u1ed9ng nh\\u01b0 th\\u1ebf n\\u00e0o?\",\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":\"1\",\"item\":{\"@id\":\"https://blog.cystack.org/tutorial\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":\"2\",\"item\":{\"@id\":\"https://blog.cystack.org/tutorial/category/firewall/\",\"name\":\"Firewall\"}},{\"@type\":\"ListItem\",\"position\":\"3\",\"item\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/\",\"name\":\"Iptables Firewall ho\\u1ea1t \\u0111\\u1ed9ng nh\\u01b0 th\\u1ebf n\\u00e0o?\"}}]},{\"@type\":\"WebPage\",\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/#webpage\",\"url\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/\",\"name\":\"Iptables Firewall ho\\u1ea1t \\u0111\\u1ed9ng nh\\u01b0 th\\u1ebf n\\u00e0o? - CyStack Tutorial\",\"datePublished\":\"2025-09-08T17:20:55+07:00\",\"dateModified\":\"2025-09-08T17:20:55+07:00\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/tutorial/#website\"},\"primaryImageOfPage\":{\"@id\":\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\"},\"inLanguage\":\"en-US\",\"breadcrumb\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/#breadcrumb\"}},{\"@type\":\"Person\",\"@id\":\"https://blog.cystack.org/tutorial/author/codeweaver/\",\"name\":\"Chris Pham\",\"url\":\"https://blog.cystack.org/tutorial/author/codeweaver/\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https://secure.gravatar.com/avatar/7a3584c941fa360ac061b2a8f15684ced7b92daa1f09481be135a684d989e9b9?s=96&d=mm&r=g\",\"url\":\"https://secure.gravatar.com/avatar/7a3584c941fa360ac061b2a8f15684ced7b92daa1f09481be135a684d989e9b9?s=96&d=mm&r=g\",\"caption\":\"Chris Pham\",\"inLanguage\":\"en-US\"}},{\"@type\":\"BlogPosting\",\"headline\":\"Iptables Firewall ho\\u1ea1t \\u0111\\u1ed9ng nh\\u01b0 th\\u1ebf n\\u00e0o? - CyStack Tutorial\",\"keywords\":\"Iptables Firewall\",\"datePublished\":\"2025-09-08T17:20:55+07:00\",\"dateModified\":\"2025-09-08T17:20:55+07:00\",\"articleSection\":\"Firewall\",\"author\":{\"@id\":\"https://blog.cystack.org/tutorial/author/codeweaver/\",\"name\":\"Chris Pham\"},\"publisher\":{\"@id\":\"https://blog.cystack.org/tutorial/#person\"},\"description\":\"T\\u00ecm hi\\u1ec3u Iptables Firewall trong Linux: c\\u00e1ch c\\u00e0i \\u0111\\u1eb7t, c\\u1ea5u h\\u00ecnh v\\u00e0 qu\\u1ea3n l\\u00fd t\\u01b0\\u1eddng l\\u1eeda \\u0111\\u1ec3 b\\u1ea3o m\\u1eadt h\\u1ec7 th\\u1ed1ng hi\\u1ec7u qu\\u1ea3.\",\"name\":\"Iptables Firewall ho\\u1ea1t \\u0111\\u1ed9ng nh\\u01b0 th\\u1ebf n\\u00e0o? - CyStack Tutorial\",\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/#richSnippet\",\"isPartOf\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/#webpage\"},\"image\":{\"@id\":\"https://s2.cystack.net/tutorial/08171808/iptables-firewall-hoat-dong-nhu-the-nao.jpg\"},\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https://blog.cystack.org/tutorial/2025/09/08/iptables-firewall-hoat-dong-nhu-the-nao/#webpage\"}}]}</script>\n"}