{"id":8977,"date":"2026-06-19T08:29:17","date_gmt":"2026-06-19T01:29:17","guid":{"rendered":"https:\/\/longvan.net\/cong-dong\/?p=8977"},"modified":"2026-06-19T08:29:55","modified_gmt":"2026-06-19T01:29:55","slug":"huong-dan-cap-nhat-nginx-va-lo-hong-bao-mat-nghiem-trong-cve-2026-42530","status":"publish","type":"post","link":"https:\/\/longvan.net\/cong-dong\/huong-dan-cap-nhat-nginx-va-lo-hong-bao-mat-nghiem-trong-cve-2026-42530\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn c\u1eadp nh\u1eadt NGINX v\u00e1 l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt nghi\u00eam tr\u1ecdng CVE-2026-42530"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">L\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt nghi\u00eam tr\u1ecdng CVE-2026-42530 (\u0110i\u1ec3m CVSS: 9.2 &#8211; Critical) v\u1eeba \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 NGINX Open Source. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng, ng\u01b0\u1eddi d\u00f9ng v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean m\u00e1y ch\u1ee7 c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra, v\u00e1 l\u1ed7i ho\u1eb7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi ngay l\u1eadp t\u1ee9c.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn chi ti\u1ebft t\u1eeb Long V\u00e2n gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean x\u1eed l\u00fd tri\u1ec7t \u0111\u1ec3 l\u1ed7 h\u1ed5ng n\u00e0y.<\/span><\/p>\n<h4><b>I. Th\u00f4ng tin l\u1ed7 h\u1ed5ng v\u00e0 ph\u1ea1m vi \u1ea3nh h\u01b0\u1edfng<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\"><b>T\u00ean l\u1ed7 h\u1ed5ng:<\/b><span style=\"font-weight: 400;\"> Use-After-Free (CVE-2026-42530).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>M\u1ee9c \u0111\u1ed9:<\/b> <b>Nghi\u00eam tr\u1ecdng (Critical)<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Chi ti\u1ebft:<\/b><span style=\"font-weight: 400;\"> L\u1ed7i n\u1eb1m trong module HTTP\/3 (<\/span><span style=\"font-weight: 400;\">ngx_http_v3_module<\/span><span style=\"font-weight: 400;\">) c\u1ee7a NGINX. Khi k\u1ebb t\u1ea5n c\u00f4ng g\u1eedi m\u1ed9t truy v\u1ea5n HTTP\/3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t, l\u1ed7 h\u1ed5ng c\u00f3 th\u1ec3 b\u1ecb khai th\u00e1c \u0111\u1ec3 g\u00e2y ra t\u00ecnh tr\u1ea1ng T\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DoS) l\u00e0m s\u1eadp h\u1ec7 th\u1ed1ng, ho\u1eb7c nguy hi\u1ec3m h\u01a1n l\u00e0 Th\u1ef1c thi m\u00e3 t\u1eeb xa (RCE) \u0111\u1ec3 chi\u1ebfm to\u00e0n quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n m\u00e1y ch\u1ee7.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Phi\u00ean b\u1ea3n b\u1ecb \u1ea3nh h\u01b0\u1edfng:<\/b><span style=\"font-weight: 400;\"> NGINX Open Source phi\u00ean b\u1ea3n <\/span><b>1.31.0<\/b><span style=\"font-weight: 400;\"> v\u00e0 <\/span><b>1.31.1<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<h4><b>II. C\u00e1ch ki\u1ec3m tra h\u1ec7 th\u1ed1ng c\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u00e1y ch\u1ee7 c\u00f3 n\u1eb1m trong di\u1ec7n r\u1ee7i ro hay kh\u00f4ng, h\u1ec7 th\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c r\u00e0 so\u00e1t d\u1ef1a tr\u00ean 2 \u0111i\u1ec1u ki\u1ec7n. M\u00e1y ch\u1ee7 ch\u1ec9 b\u1ecb \u1ea3nh h\u01b0\u1edfng n\u1ebfu th\u1ecfa m\u00e3n <\/span><b>c\u1ea3 hai<\/b><span style=\"font-weight: 400;\"> \u0111i\u1ec1u ki\u1ec7n sau:<\/span><\/p>\n<p><b>\u0110i\u1ec1u ki\u1ec7n 1: Ki\u1ec3m tra phi\u00ean b\u1ea3n NGINX<\/b><span style=\"font-weight: 400;\"> Ti\u1ebfn h\u00e0nh ki\u1ec3m tra phi\u00ean b\u1ea3n NGINX \u0111ang ch\u1ea1y tr\u00ean m\u00e1y ch\u1ee7 b\u1eb1ng l\u1ec7nh:<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">nginx -v<\/span><\/p><\/blockquote>\n<p><i><span style=\"font-weight: 400;\">N\u1ebfu k\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 l\u00e0 <\/span><\/i><i><span style=\"font-weight: 400;\">1.31.0<\/span><\/i><i><span style=\"font-weight: 400;\"> ho\u1eb7c <\/span><\/i><i><span style=\"font-weight: 400;\">1.31.1<\/span><\/i><i><span style=\"font-weight: 400;\">, h\u1ec7 th\u1ed1ng n\u1eb1m trong d\u1ea3i phi\u00ean b\u1ea3n l\u1ed7i. Ti\u1ebfp t\u1ee5c th\u1ef1c hi\u1ec7n \u0110i\u1ec1u ki\u1ec7n 2.<\/span><\/i><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8978 size-full aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_1-1.png\" alt=\"\" width=\"244\" height=\"61\" \/><\/p>\n<p><b>\u0110i\u1ec1u ki\u1ec7n 2: Ki\u1ec3m tra c\u1ea5u h\u00ecnh HTTP\/3 (QUIC)<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng l\u1ec7nh sau \u0111\u1ec3 r\u00e0 so\u00e1t nhanh xem giao th\u1ee9c HTTP\/3 c\u00f3 \u0111ang \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t trong file c\u1ea5u h\u00ecnh hay kh\u00f4ng:<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">grep -E &#8220;listen.*quic|http3.*on&#8221; \/usr\/local\/nginx\/nginx.conf<\/span><\/p><\/blockquote>\n<p><i><span style=\"font-weight: 400;\">(L\u01b0u \u00fd: Thay th\u1ebf <\/span><\/i><i><span style=\"font-weight: 400;\">\/usr\/local\/nginx\/nginx.conf<\/span><\/i><i><span style=\"font-weight: 400;\"> b\u1eb1ng \u0111\u01b0\u1eddng d\u1eabn th\u01b0 m\u1ee5c\/file c\u1ea5u h\u00ecnh NGINX th\u1ef1c t\u1ebf tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n, v\u00ed d\u1ee5: <\/span><\/i><i><span style=\"font-weight: 400;\">\/etc\/nginx\/<\/span><\/i><i><span style=\"font-weight: 400;\">).<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">N\u1ebfu l\u1ec7nh tr\u1ea3 v\u1ec1 c\u00e1c d\u00f2ng c\u1ea5u h\u00ecnh \u0111ang ho\u1ea1t \u0111\u1ed9ng (kh\u00f4ng c\u00f3 d\u1ea5u <\/span><span style=\"font-weight: 400;\">#<\/span><span style=\"font-weight: 400;\"> \u1edf \u0111\u1ea7u), h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n \u0111ang b\u1ecb \u1ea3nh h\u01b0\u1edfng v\u00e0 c\u1ea7n \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p x\u1eed l\u00fd ngay l\u1eadp t\u1ee9c.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8979 size-full aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-1.png\" alt=\"\" width=\"664\" height=\"72\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-1.png 664w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_2-1-300x33.png 300w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" \/><\/p>\n<h4><b>III. Gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng \u0111ang b\u1ecb \u1ea3nh h\u01b0\u1edfng nh\u01b0ng ch\u01b0a th\u1ec3 s\u1eafp x\u1ebfp l\u1ecbch b\u1ea3o tr\u00ec (downtime) \u0111\u1ec3 c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m, qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n ti\u1ebfn h\u00e0nh v\u00f4 hi\u1ec7u h\u00f3a giao th\u1ee9c HTTP\/3 (QUIC) \u0111\u1ec3 ng\u0103n ch\u1eb7n r\u1ee7i ro b\u1ecb khai th\u00e1c.<\/span><\/p>\n<p><b>B\u01b0\u1edbc 1:<\/b><span style=\"font-weight: 400;\"> M\u1edf c\u00e1c t\u1ec7p c\u1ea5u h\u00ecnh NGINX c\u00f3 ch\u1ee9a t\u1eeb kh\u00f3a <\/span><span style=\"font-weight: 400;\">quic<\/span><span style=\"font-weight: 400;\"> ho\u1eb7c <\/span><span style=\"font-weight: 400;\">http3<\/span><span style=\"font-weight: 400;\"> \u0111\u00e3 t\u00ecm th\u1ea5y \u1edf ph\u1ea7n ki\u1ec3m tra tr\u00ean.<\/span><\/p>\n<p><b>B\u01b0\u1edbc 2:<\/b><span style=\"font-weight: 400;\"> V\u00f4 hi\u1ec7u h\u00f3a (comment b\u1eb1ng d\u1ea5u <\/span><span style=\"font-weight: 400;\">#<\/span><span style=\"font-weight: 400;\">) c\u00e1c d\u00f2ng c\u1ea5u h\u00ecnh thi\u1ebft l\u1eadp c\u1ed5ng UDP cho QUIC.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">V\u00ed d\u1ee5:<\/span><\/i><span style=\"font-weight: 400;\"> \u0110\u1ed5i <\/span><span style=\"font-weight: 400;\">listen 443 quic reuseport;<\/span><span style=\"font-weight: 400;\"> th\u00e0nh <\/span><span style=\"font-weight: 400;\"># listen 443 quic reuseport;<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8980 size-full aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_3-1.png\" alt=\"\" width=\"377\" height=\"149\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_3-1.png 377w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_3-1-300x119.png 300w\" sizes=\"auto, (max-width: 377px) 100vw, 377px\" \/><\/p>\n<p><b>B\u01b0\u1edbc 3:<\/b><span style=\"font-weight: 400;\"> V\u00f4 hi\u1ec7u h\u00f3a ch\u1ec9 th\u1ecb k\u00edch ho\u1ea1t HTTP\/3.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">V\u00ed d\u1ee5:<\/span><\/i><span style=\"font-weight: 400;\"> \u0110\u1ed5i <\/span><span style=\"font-weight: 400;\">http3 on;<\/span><span style=\"font-weight: 400;\"> th\u00e0nh <\/span><span style=\"font-weight: 400;\"># http3 on;<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8981 size-full\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_4-1-e1781804764962.png\" alt=\"\" width=\"412\" height=\"186\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_4-1-e1781804764962.png 412w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_4-1-e1781804764962-300x135.png 300w\" sizes=\"auto, (max-width: 412px) 100vw, 412px\" \/><\/p>\n<p><b>B\u01b0\u1edbc 4:<\/b><span style=\"font-weight: 400;\"> Ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a c\u00fa ph\u00e1p c\u1ea5u h\u00ecnh m\u1edbi v\u00e0 ti\u1ebfn h\u00e0nh t\u1ea3i l\u1ea1i (reload) d\u1ecbch v\u1ee5:<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">nginx -t<\/span><\/p>\n<p><span style=\"font-weight: 400;\">nginx -s reload<\/span><\/p><\/blockquote>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8984 size-full aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_5-1.png\" alt=\"\" width=\"602\" height=\"99\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_5-1.png 602w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/06\/Screenshot_5-1-300x49.png 300w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><\/p>\n<h3><b>IV. C\u00e1ch c\u1eadp nh\u1eadt NGINX ch\u00ednh th\u1ee9c (Gi\u1ea3i ph\u00e1p tri\u1ec7t \u0111\u1ec3)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 kh\u1eafc ph\u1ee5c ho\u00e0n to\u00e0n l\u1ed7 h\u1ed5ng CVE-2026-42530, ph\u01b0\u01a1ng \u00e1n b\u1eaft bu\u1ed9c v\u00e0 an to\u00e0n nh\u1ea5t l\u00e0 n\u00e2ng c\u1ea5p NGINX l\u00ean phi\u00ean b\u1ea3n \u0111\u00e3 \u0111\u01b0\u1ee3c v\u00e1 l\u1ed7i.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>Phi\u00ean b\u1ea3n an to\u00e0n:<\/b> <b>NGINX 1.31.2<\/b><span style=\"font-weight: 400;\"> ho\u1eb7c c\u00e1c b\u1ea3n ph\u00e1t h\u00e0nh m\u1edbi h\u01a1n.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Thao t\u00e1c th\u1ef1c hi\u1ec7n:<\/b>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Sao l\u01b0u (Backup) c\u1ea5u h\u00ecnh v\u00e0 d\u1eef li\u1ec7u h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u1eadp nh\u1eadt package NGINX th\u00f4ng qua tr\u00ecnh qu\u1ea3n l\u00fd g\u00f3i c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh (<\/span><span style=\"font-weight: 400;\">apt<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">yum<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">dnf<\/span><span style=\"font-weight: 400;\">, v.v.) ho\u1eb7c ti\u1ebfn h\u00e0nh bi\u00ean d\u1ecbch l\u1ea1i t\u1eeb m\u00e3 ngu\u1ed3n m\u1edbi nh\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Sau khi qu\u00e1 tr\u00ecnh c\u1eadp nh\u1eadt th\u00e0nh c\u00f4ng v\u00e0 ki\u1ec3m tra phi\u00ean b\u1ea3n b\u1eb1ng l\u1ec7nh <\/span><span style=\"font-weight: 400;\">nginx -v<\/span><span style=\"font-weight: 400;\"> x\u00e1c nh\u1eadn b\u1ea3n 1.31.2+, b\u1ea1n c\u00f3 th\u1ec3 m\u1edf l\u1ea1i file c\u1ea5u h\u00ecnh, x\u00f3a c\u00e1c d\u1ea5u <\/span><span style=\"font-weight: 400;\">#<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 b\u1eadt l\u1ea1i HTTP\/3 v\u00e0 ch\u1ea1y l\u1ec7nh <\/span><span style=\"font-weight: 400;\">nginx -s reload<\/span><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<h3><b>V. L\u01b0u \u00fd quan tr\u1ecdng<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><b>C\u1ea5u h\u00ecnh m\u1eb7c \u0111\u1ecbnh:<\/b><span style=\"font-weight: 400;\"> Giao th\u1ee9c HTTP\/3 <\/span><b>kh\u00f4ng<\/b><span style=\"font-weight: 400;\"> \u0111\u01b0\u1ee3c b\u1eadt theo m\u1eb7c \u0111\u1ecbnh tr\u00ean h\u1ec7 th\u1ed1ng NGINX. N\u1ebfu m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n ch\u1ec9 ph\u1ee5c v\u1ee5 web th\u00f4ng qua HTTP\/1.1 ho\u1eb7c HTTP\/2 (ch\u1ec9 s\u1eed d\u1ee5ng k\u1ebft n\u1ed1i TCP), h\u1ec7 th\u1ed1ng kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi l\u1ed7 h\u1ed5ng n\u00e0y.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Ki\u1ec3m tra c\u00fa ph\u00e1p:<\/b><span style=\"font-weight: 400;\"> H\u00e3y lu\u00f4n th\u1ef1c hi\u1ec7n l\u1ec7nh <\/span><span style=\"font-weight: 400;\">nginx -t<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 ki\u1ec3m tra tr\u01b0\u1edbc khi reload c\u1ea5u h\u00ecnh. Thao t\u00e1c n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 l\u1ed7i c\u00fa ph\u00e1p trong qu\u00e1 tr\u00ecnh ch\u1ec9nh s\u1eeda file, tr\u00e1nh g\u00e2y gi\u00e1n \u0111o\u1ea1n c\u00e1c d\u1ecbch v\u1ee5 web \u0111ang ch\u1ea1y.<\/span><\/li>\n<\/ul>\n<p>Nh\u01b0 v\u1eady, Long V\u00e2n \u0111\u00e3 h\u01b0\u1edbng d\u1eabn qu\u00fd Kh\u00e1ch\u00a0<span class=\"appsElementsGenerativeaiAstAnimated\" data-ast-node-id=\"0\">c\u00e1c b\u01b0\u1edbc gi\u1ea3m thi\u1ec3u t\u1ea1m th\u1eddi v\u00e0 c\u1eadp nh\u1eadt nginx \u0111\u1ec3 kh\u1eafc ph\u1ee5c l\u1ed7 h\u1ed5ng <\/span><strong><span class=\"appsElementsGenerativeaiAstAnimated\" data-ast-node-id=\"1\">CVE-2026-42530<\/span><\/strong>. Ch\u00fac qu\u00fd Kh\u00e1ch th\u00e0nh c\u00f4ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt nghi\u00eam tr\u1ecdng CVE-2026-42530 (\u0110i\u1ec3m CVSS: 9.2 &#8211; Critical) v\u1eeba \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 NGINX Open Source. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng, ng\u01b0\u1eddi d\u00f9ng v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean m\u00e1y ch\u1ee7 c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra, v\u00e1 l\u1ed7i ho\u1eb7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p gi\u1ea3m [&hellip;]<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_oasis_is_in_workflow":0,"_oasis_original":0,"footnotes":""},"categories":[40],"tags":[5,355,459,51],"class_list":["post-8977","post","type-post","status-publish","format-standard","hentry","category-web-hosting","tag-linux","tag-nginx","tag-smartcloud","tag-web-hosting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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