{"id":8902,"date":"2026-06-24T16:33:48","date_gmt":"2026-06-24T09:33:48","guid":{"rendered":"https:\/\/longvan.net\/cong-dong\/?p=8902"},"modified":"2026-06-24T16:33:50","modified_gmt":"2026-06-24T09:33:50","slug":"huong-dan-chong-brute-force-bang-fail2ban-tren-aapanel","status":"publish","type":"post","link":"https:\/\/longvan.net\/cong-dong\/huong-dan-chong-brute-force-bang-fail2ban-tren-aapanel\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ed1ng brute force b\u1eb1ng Fail2Ban tr\u00ean aaPanel"},"content":{"rendered":"<p><strong>I. Gi\u1edbi thi\u1ec7u<\/strong><\/p>\n<p><strong>Brute force<\/strong> l\u00e0 h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng th\u1eed nhi\u1ec1u l\u1ea7n username\/password \u0111\u1ec3 \u0111\u0103ng nh\u1eadp v\u00e0o server ho\u1eb7c d\u1ecbch v\u1ee5 nh\u01b0 SSH, aaPanel, FTP\u2026<\/p>\n<p>Fail2Ban l\u00e0 c\u00f4ng c\u1ee5 gi\u00fap t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n v\u00e0 ch\u1eb7n c\u00e1c IP c\u00f3 h\u00e0nh vi \u0111\u0103ng nh\u1eadp sai nhi\u1ec1u l\u1ea7n.<\/p>\n<p>aaPanel h\u1ed7 tr\u1ee3 plugin <strong>Fail2Ban Manager<\/strong> cho ph\u00e9p:<\/p>\n<ul>\n<li>T\u1ef1 \u0111\u1ed9ng block IP khi \u0111\u0103ng nh\u1eadp sai nhi\u1ec1u l\u1ea7n<\/li>\n<li>B\u1ea3o v\u1ec7 SSH, aaPanel, FTP<\/li>\n<li>Gi\u1ea3m nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng brute force<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt quan tr\u1ecdng khi v\u1eadn h\u00e0nh server.<\/p>\n<h4>II. C\u00e0i \u0111\u1eb7t Fail2Ban<\/h4>\n<h4>B\u01b0\u1edbc 1: C\u00e0i plugin Fail2ban Manager<\/h4>\n<p>V\u00e0o App Store<\/p>\n<p>T\u00ecm Fail2Ban Manager<\/p>\n<p>Nh\u1ea5n Install<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8903 size-full\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_14-1.png\" alt=\"\" width=\"1583\" height=\"654\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_14-1.png 1583w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_14-1-300x124.png 300w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_14-1-1024x423.png 1024w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_14-1-768x317.png 768w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_14-1-1536x635.png 1536w\" sizes=\"auto, (max-width: 1583px) 100vw, 1583px\" \/><\/p>\n<h4>B\u01b0\u1edbc 2. T\u1ea1o rule ch\u1ed1ng brute force<\/h4>\n<p>Ch\u1ecdn service c\u1ea7n b\u1ea3o v\u1ec7<\/p>\n<p>Trong <strong>Fail2Ban<\/strong>, b\u1ea1n c\u00f3 th\u1ec3 b\u1eadt cho: SSH, aaPanel, FTP<\/p>\n<p>\u1edf \u0111\u00e2y admin s\u1ebd thao t\u00e1c ch\u1ed1ng bruteforce cho service ssh.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8904 size-full\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_16.png\" alt=\"\" width=\"902\" height=\"603\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_16.png 902w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_16-300x201.png 300w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_16-768x513.png 768w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/p>\n<h4>B\u01b0\u1edbc 3: C\u1ea5u h\u00ecnh rule ch\u1ed1ng brute force<\/h4>\n<p>C\u00e1c th\u00f4ng s\u1ed1 quan tr\u1ecdng:<\/p>\n<p>Max retry: s\u1ed1 l\u1ea7n \u0111\u0103ng nh\u1eadp sai (v\u00ed d\u1ee5: 5)<\/p>\n<p>Find time: th\u1eddi gian t\u00ednh s\u1ed1 l\u1ea7n retry (v\u00ed d\u1ee5: 10 ph\u00fat)<\/p>\n<p>Ban time: th\u1eddi gian ch\u1eb7n IP (v\u00ed d\u1ee5: 600 gi\u00e2y ho\u1eb7c h\u01a1n)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8905 size-full\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_17-1.png\" alt=\"\" width=\"501\" height=\"491\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_17-1.png 501w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_17-1-300x294.png 300w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/p>\n<h4>B\u01b0\u1edbc 4: Ki\u1ec3m tra v\u00e0 qu\u1ea3n l\u00fd IP b\u1ecb block<\/h4>\n<p>\u0110\u1ec3 v\u00e0o m\u1ee5c Ban List trong Fail2Ban ta b\u1ea5m v\u00e0o rule v\u1eeba c\u1ea5u h\u00ecnh ch\u1ecdn xem log<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8906 size-full\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_20-1.png\" alt=\"\" width=\"905\" height=\"410\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_20-1.png 905w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_20-1-300x136.png 300w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_20-1-768x348.png 768w\" sizes=\"auto, (max-width: 905px) 100vw, 905px\" \/><\/p>\n<p>C\u00f3 th\u1ec3:<\/p>\n<p>\u0111\u1ec3 Unban IP n\u1ebfu c\u1ea7n thi\u1ebft ta ch\u1ec9 c\u1ea7n ch\u1ecdn <strong>del<\/strong> \u1edf danh s\u00e1ch IP\u00a0 ban<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8907 size-full\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_21-1.png\" alt=\"\" width=\"504\" height=\"520\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_21-1.png 504w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2026\/04\/Screenshot_21-1-291x300.png 291w\" sizes=\"auto, (max-width: 504px) 100vw, 504px\" \/><\/p>\n<h4>III. K\u1ebft lu\u1eadn<\/h4>\n<p>Fail2Ban gi\u00fap t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng brute force tr\u00ean server m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p>C\u1ea7n l\u01b0u \u00fd:<\/p>\n<ul>\n<li>Kh\u00f4ng c\u1ea5u h\u00ecnh retry qu\u00e1 th\u1ea5p d\u1ec5 block nh\u1ea7m<\/li>\n<li>N\u00ean whitelist IP qu\u1ea3n tr\u1ecb<\/li>\n<li>Theo d\u00f5i danh s\u00e1ch IP b\u1ecb ch\u1eb7n th\u01b0\u1eddng xuy\u00ean<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 l\u1edbp b\u1ea3o m\u1eadt quan tr\u1ecdng gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro b\u1ecb t\u1ea5n c\u00f4ng \u0111\u0103ng nh\u1eadp.<\/p>\n<p>Nh\u01b0 v\u1eady, Long V\u00e2n \u0111\u00e3 h\u01b0\u1edbng d\u1eabn ch\u1ed1ng brute force b\u1eb1ng Fail2Ban Manager tr\u00ean aaPanel\u00a0 ho\u00e0n t\u1ea5t. Ch\u00fac qu\u00fd kh\u00e1ch th\u00e0nh c\u00f4ng!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn ch\u1ed1ng brute force b\u1eb1ng Fail2Ban tr\u00ean aaPanel<\/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":[1,4],"tags":[252,72],"class_list":["post-8902","post","type-post","status-publish","format-standard","hentry","category-huong-dan-chung","category-linux","tag-fail2ban","tag-linux-firewall"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>H\u01b0\u1edbng d\u1eabn ch\u1ed1ng brute force b\u1eb1ng Fail2Ban tr\u00ean aaPanel - Long V\u00e2n<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longvan.net\/cong-dong\/huong-dan-chong-brute-force-bang-fail2ban-tren-aapanel\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u01b0\u1edbng d\u1eabn ch\u1ed1ng brute force b\u1eb1ng Fail2Ban tr\u00ean aaPanel - 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