{"id":9771,"date":"2016-12-27T10:32:28","date_gmt":"2016-12-27T03:32:28","guid":{"rendered":""},"modified":"2024-06-07T16:12:18","modified_gmt":"2024-06-07T09:12:18","slug":"he-thong-ddos-secure","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/he-thong-ddos-secure\/","title":{"rendered":"H\u1ec7 th\u1ed1ng DDoS Secure"},"content":{"rendered":"<p style=\"text-align: justify;\">Khi b\u1ea1n \u0111\u00e3 \u0111\u0103ng k\u00fd d\u1ecbch v\u1ee5 VPS\/server c\u1ee7a VNSO, th\u00ec VPS c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi <a href=\"https:\/\/vnso.vn\/en\/thue-firewall-chong-ddos\/\"><strong>DDoS Secure<\/strong><\/a>. V\u1eady DDoS l\u00e0 g\u00ec v\u00e0 H\u1ec7 th\u1ed1ng <a href=\"https:\/\/vnso.vn\/en\/thue-firewall-chong-ddos\/\"><strong>DDoS Secure<\/strong><\/a> c\u1ee7a VNSO b\u1ea3o v\u1ec7 VPS\/server c\u1ee7a b\u1ea1n nh\u01b0 th\u1ebf n\u00e0o? Trong b\u00e0i vi\u1ebft nay, VNSO s\u1ebd gi\u1ea3i th\u00edch cho c\u00e1c b\u1ea1n r\u00f5 h\u01a1n v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<p style=\"text-align: justify;\"><!--more--><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-510\" src=\"http:\/\/docs.demo.vnso.vn\/wp-content\/uploads\/2016\/12\/DDoS-08.jpg\" alt=\"ddos-08\" width=\"593\" height=\"290\" \/><\/p>\n<p><span style=\"color: #0000ff;\"><strong>DDoS l\u00e0 g\u00ec?<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><strong>DDoS<\/strong><em> (Distributed Denial of Service)<\/em> l\u00e0 ki\u1ec3u t\u1ea5n c\u00f4ng l\u00e0m cho m\u1ee5c ti\u00eau, nh\u1ea5t l\u00e0 c\u00e1c trang web, d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn, tr\u1edf n\u00ean qu\u00e1 t\u1ea3i. Ng\u01b0\u1eddi d\u00f9ng g\u1eb7p kh\u00f3 kh\u0103n, th\u1eadm ch\u00ed kh\u00f4ng th\u1ec3 truy c\u1eadp v\u00e0o c\u00e1c trang web, d\u1ecbch v\u1ee5 n\u00e0y.<\/p>\n<p>C\u00f3 nhi\u1ec1u d\u1ea1ng t\u1ea5n c\u00f4ng DDoS, trong \u0111\u00f3 c\u00f3 3 d\u1ea1ng t\u1ea5n c\u00f4ng DDoS ph\u1ed5 bi\u1ebfn nh\u01b0 sau:<\/p>\n<p style=\"text-align: justify;\"><strong>Ping of Death:<\/strong>\u00a0M\u00e1y t\u00ednh s\u1ebd b\u1ecb ng\u01b0ng h\u1ecdat \u0111\u1ed9ng, reboot ho\u1eb7c b\u1ecb crash khi b\u1ecb nh\u1eadn nh\u1eefng g\u00f3i d\u1eef li\u1ec7u ping c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn v\u00e0 nhi\u1ec1u l\u1ea7n c\u00f9ng 1 l\u00fac.<\/p>\n<p><strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0V\u00ed d\u1ee5:<\/strong> ping IP -n 1000 (trong \u0111\u00f3: 1000 l\u00e0 s\u1ed1 l\u1ea7n g\u1eedi g\u00f3i d\u1eef li\u1ec7u)<\/p>\n<p style=\"text-align: justify;\"><strong>TCP\/SYN Flooding:<\/strong> \u0110\u00e1nh tr\u00e0n qua giao th\u1ee9c TCP. Hacker th\u1ef1c hi\u1ec7n vi\u1ec7c SYN Flooding b\u1eb1ng c\u00e1ch g\u1eedi t\u1edbi t\u1ea5p, h\u00e0ng lo\u1ea1t TCP\/SYN packet \u0111\u1ebfn c\u1ed5ng d\u1ecbch v\u1ee5 c\u1ee7a m\u00e1y ch\u1ee7 s\u1ebd l\u00e0m m\u00e1y ch\u1ee7 b\u1ecb qu\u00e1 t\u1ea3i v\u00e0 kh\u00f4ng c\u00f2n kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c n\u1eefa.<\/p>\n<p style=\"text-align: justify;\"><strong>UDP\/ICMP Flooding:<\/strong> \u0110\u00e1nh tr\u00e0n qua giao th\u1ee9c UDP. Hacker th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch g\u1eedi 1 s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c g\u00f3i tin UDP\/ICMP c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn \u0111\u1ebfn h\u1ec7 th\u1ed1ng m\u1ea1ng. Khi h\u1ec7 th\u1ed1ng m\u1ea1ng ch\u1ecbu ph\u1ea3i s\u1ef1 t\u1ea5n c\u00f4ng n\u00e0y s\u1ebd b\u1ecb qu\u00e1\u00a0t\u1ea3i v\u00e0 b\u1ecb chi\u1ebfm h\u1ebft b\u0103ng th\u00f4ng \u0111\u01b0\u1eddng truy\u1ec1n \u0111i ra b\u00ean ngo\u00e0i c\u1ee7a m\u1ea1ng n\u00e0y, v\u00ec th\u1ebf n\u00f3 g\u00e2y ra nh\u1eefng \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn \u0111\u01b0\u1eddng truy\u1ec1n c\u0169ng nh\u01b0 t\u1ed1c \u0111\u1ed9 c\u1ee7a m\u1ea1ng, g\u00e2y n\u00ean nh\u1eefng kh\u00f3 kh\u0103n cho kh\u00e1ch h\u00e0ng khi truy c\u1eadp t\u1eeb b\u00ean ngo\u00e0i v\u00e0o m\u1ea1ng n\u00e0y.<\/p>\n<p><a href=\"https:\/\/vnso.vn\/en\/thue-firewall-chong-ddos\/\"><span style=\"color: #0000ff;\"><strong>C\u00e1ch ph\u00f2ng ch\u1ed1ng DDoS<\/strong><\/span><\/a><\/p>\n<p>VNSO \u0111\u00e3 tham kh\u1ea3o v\u00e0 bi\u1ebft m\u1ed9t s\u1ed1 c\u00e1ch nh\u01b0ng h\u1ea7u h\u1ebft kh\u00f4ng ch\u1ed1ng \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch tri\u1ec7t \u0111\u1ec3.<\/p>\n<ul>\n<li style=\"text-align: justify;\">Khi b\u1ea1n ph\u00e1t hi\u1ec7n m\u00e1y ch\u1ee7 m\u00ecnh b\u1ecb t\u1ea5n c\u00f4ng h\u00e3y nhanh ch\u00f3ng truy t\u00ecm \u0111\u1ecba ch\u1ec9 IP \u0111\u00f3 v\u00e0 c\u1ea5m kh\u00f4ng cho g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn m\u00e1y ch\u1ee7.<\/li>\n<li style=\"text-align: justify;\">D\u00f9ng t\u00ednh n\u0103ng l\u1ecdc d\u1eef li\u1ec7u c\u1ee7a router\/firewall \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c packet kh\u00f4ng mong mu\u1ed1n, gi\u1ea3m l\u01b0\u1ee3ng l\u01b0u th\u00f4ng tr\u00ean m\u1ea1ng v\u00e0 t\u1ea3i c\u1ee7a m\u00e1y ch\u1ee7.<\/li>\n<li style=\"text-align: justify;\">S\u1eed d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng cho ph\u00e9p \u0111\u1eb7t rate limit tr\u00ean router\/firewall \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ed1 l\u01b0\u1ee3ng packet v\u00e0o h\u1ec7 th\u1ed1ng.<\/li>\n<li style=\"text-align: justify;\">N\u1ebfu b\u1ecb t\u1ea5n c\u00f4ng do l\u1ed7i c\u1ee7a ph\u1ea7n m\u1ec1m hay thi\u1ebft b\u1ecb th\u00ec nhanh ch\u00f3ng c\u1eadp nh\u1eadt c\u00e1c b\u1ea3n s\u1eeda l\u1ed7i cho h\u1ec7 th\u1ed1ng \u0111\u00f3 ho\u1eb7c thay th\u1ebf.<\/li>\n<li style=\"text-align: justify;\">D\u00f9ng m\u1ed9t s\u1ed1 c\u01a1 ch\u1ebf, c\u00f4ng c\u1ee5, ph\u1ea7n m\u1ec1m \u0111\u1ec3 ch\u1ed1ng l\u1ea1i TCP\/SYN Flooding.<\/li>\n<li style=\"text-align: justify;\">T\u1eaft c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c n\u1ebfu c\u00f3 tr\u00ean m\u00e1y ch\u1ee7 \u0111\u1ec3 gi\u1ea3m t\u1ea3i v\u00e0 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng t\u1ed1t h\u01a1n. N\u1ebfu \u0111\u01b0\u1ee3c c\u00f3 th\u1ec3 n\u00e2ng c\u1ea5p c\u00e1c thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng c\u1ee7a h\u1ec7 th\u1ed1ng hay s\u1eed d\u1ee5ng th\u00eam c\u00e1c m\u00e1y ch\u1ee7 c\u00f9ng t\u00ednh n\u0103ng kh\u00e1c \u0111\u1ec3 ph\u00e2n chia t\u1ea3i.<\/li>\n<li style=\"text-align: justify;\">T\u1ea1m th\u1eddi chuy\u1ec3n m\u00e1y ch\u1ee7 sang m\u1ed9t \u0111\u1ecba ch\u1ec9 kh\u00e1c.<\/li>\n<\/ul>\n<p><span style=\"color: #0000ff;\"><strong>Khi \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng <a href=\"https:\/\/vnso.vn\/en\/thue-firewall-chong-ddos\/\">h\u1ec7 th\u1ed1ng DDoS Secure<\/a> c\u1ee7a VNSO, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\">T\u1ea5t c\u1ea3 c\u00e1c VPS\/server c\u1ee7a VNSO \u0111\u00e3 \u0111\u01b0\u1ee3c H\u1ec7 th\u1ed1ng ph\u00f2ng ch\u1ed1ng DDOS c\u1ee7a VNSO tri\u1ec3n khai \u1edf l\u1edbp trung gian, ngh\u0129a l\u00e0 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c \u0111\u1eb7t gi\u1eefa k\u1ebft n\u1ed1i internet v\u1edbi c\u00e1c m\u00e1y ch\u1ee7 b\u00ean trong. H\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb <strong>\u0111\u1eb7t tr\u01b0\u1edbc Firewall<\/strong> \u0111\u1ec3 c\u00f3 th\u1ec3 x\u1eed l\u00fd packets tr\u01b0\u1edbc, nh\u1eb1m <strong>gi\u1ea3m t\u1ea3i cho t\u01b0\u1eddng l\u1eeda v\u00e0 m\u00e1y ch\u1ee7<\/strong> b\u00ean trong.<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-514\" src=\"http:\/\/docs.demo.vnso.vn\/wp-content\/uploads\/2016\/12\/DDoS-09.jpg\" alt=\"ddos-09\" width=\"648\" height=\"590\" \/><\/p>\n<p style=\"text-align: justify;\">M\u1eb7t kh\u00e1c, \u0111i\u1ec1u hay nh\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng <a href=\"https:\/\/vnso.vn\/en\/thue-firewall-chong-ddos\/\">ph\u00f2ng ch\u1ed1ng DDOS<\/a> n\u00e0y, \u0111\u00f3 ch\u00ednh l\u00e0 <strong>Automation<\/strong>. Sau khi \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh, h\u1ec7 th\u1ed1ng s\u1ebd <strong>t\u1ef1 h\u1ecdc<\/strong> c\u00e1c traffics \u0111\u1ebfn t\u1eebng m\u00e1y ch\u1ee7, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng c\u1ea3nh b\u00e1o v\u00e0 ng\u0103n ch\u1eb7n, gi\u00fap qu\u1ea3n tr\u1ecb k\u1ecbp th\u1eddi n\u1eafm b\u1eaft t\u00ecnh h\u00ecnh v\u00e0 ch\u1ee7 \u0111\u1ed9ng can thi\u1ec7p khi c\u1ea7n. Th\u1eddi gian \u0111\u1ec3 t\u1ef1 h\u1ecdc traffics t\u1eeb <strong>1 &#8211; 2 tu\u1ea7n<\/strong>.<\/p>\n<p style=\"text-align: justify;\"><strong><span style=\"color: #ff0000;\">C\u1ea5u h\u00ecnh DDoS Secure m\u1eb7c \u0111\u1ecbnh c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c\u00a0VPS\/server<\/span><\/strong><\/p>\n<p><a href=\"http:\/\/docs.demo.vnso.vn\/wp-content\/uploads\/2016\/12\/DDoS-11.png\"><img decoding=\"async\" src=\"http:\/\/docs.demo.vnso.vn\/wp-content\/uploads\/2016\/12\/DDoS-11.png\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Trong \u0111\u00f3:<\/p>\n<ul>\n<li style=\"text-align: justify;\"><strong>inb-tcp, inb-udp, inb-icmp, inb-other:<\/strong>\u00a0Qu\u1ea3n l\u00fd chi\u1ec1u <strong>in<\/strong> c\u00e1c giao th\u1ee9c.\n<ul>\n<li style=\"text-align: left;\"><strong>Source TCP ports:<\/strong> Port cho ph\u00e9p truy c\u1eadp t\u1eeb ngo\u00e0i v\u00e0o server qua giao th\u1ee9c TCP.<\/li>\n<li style=\"text-align: left;\"><strong>TCP ports: <\/strong>Port cho ph\u00e9p server truy c\u1eadp ra ngo\u00e0i\u00a0qua giao th\u1ee9c TCP.<\/li>\n<li style=\"text-align: justify;\"><strong>HTTP port:\u00a0<\/strong>Port cho ph\u00e9p server truy c\u1eadp ra ngo\u00e0i\u00a0qua giao th\u1ee9c\u00a0HTTP.<\/li>\n<li style=\"text-align: justify;\"><strong>Speed (bps):<\/strong> Gi\u1edbi h\u1ea1n l\u01b0\u1ee3ng b\u0103ng th\u00f4ng trung b\u00ecnh truy c\u1eadp<strong>\u00a0<\/strong>qua\u00a0port.<\/li>\n<li style=\"text-align: justify;\"><strong>Burst Speed: <\/strong>Gi\u1edbi h\u1ea1n\u00a0l\u01b0\u1ee3ng b\u0103ng th\u00f4ng truy c\u1eadp \u0111\u1ed9t bi\u1ebfn.<\/li>\n<li style=\"text-align: justify;\"><strong>Rate (pps):\u00a0<\/strong>Gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng g\u00f3i packet\u00a0trung b\u00ecnh truy c\u1eadp\u00a0qua\u00a0port.<\/li>\n<li style=\"text-align: justify;\"><strong>Burst Rate:\u00a0<\/strong>Gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng packet truy c\u1eadp \u0111\u1ed9t bi\u1ebfn.<\/li>\n<\/ul>\n<\/li>\n<li style=\"text-align: justify;\"><strong>out-tcp, out-udp, out-icmp, out-other: <\/strong>Qu\u1ea3n l\u00fd chi\u1ec1u <strong>out<\/strong>\u00a0c\u00e1c giao th\u1ee9c.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"color: #ff0000;\"><strong>N\u1ebfu \u0111\u0103ng k\u00fd G\u00f3i Anti DDoS Premium c\u1ee7a VNSO, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c g\u00ec?<\/strong><\/span><\/p>\n<ul>\n<li style=\"text-align: justify;\">B\u1ea1n s\u1ebd c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng DDoS Secure c\u1ee7a VNSO.<\/li>\n<li style=\"text-align: justify;\">B\u1ea1n s\u1ebd c\u00f3 quy\u1ec1n xem, c\u1ea5u h\u00ecnh ri\u00eang DDoS tr\u00ean server c\u1ee7a b\u1ea1n. M\u1ed9t s\u1ed1 t\u00ednh n\u0103ng c\u01a1 b\u1ea3n c\u1ee7a h\u1ec7 th\u1ed1ng nh\u01b0 sau:\n<ul>\n<li>Gi\u00e1m s\u00e1t to\u00e0n b\u1ed9 packets t\u1eeb ngo\u00e0i v\u00e0 b\u00ean trong h\u1ec7 th\u1ed1ng. Nh\u01b0 th\u1ebf, ch\u00fang ta c\u00f3 th\u1ec3 theo d\u00f5i \u0111\u01b0\u1ee3c b\u0103ng th\u00f4ng In-Out c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, chi ti\u1ebft \u0111\u1ebfn t\u1eebng IP b\u00ean trong.<\/li>\n<li>Gi\u00e1m s\u00e1t to\u00e0n b\u1ed9 traffics t\u1eebng source port hay destination port.<\/li>\n<li>Cung c\u1ea5p th\u00f4ng tin gi\u00e1m s\u00e1t TCP, UDP, URL, DNS, SIP\u2026<\/li>\n<li>C\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n t\u1ea5n c\u00f4ng t\u1eeb t\u1eebng IP, \u0111\u1ebfn range IP, AS Number hay c\u1ea3 Country.<\/li>\n<li>C\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh b\u1ea3o v\u1ec7 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng hay chi ti\u1ebft v\u1edbi t\u1eebng IP.<\/li>\n<li>B\u00e1o c\u00e1o t\u1ea5n c\u00f4ng trong m\u1ed7i 5 ph\u00fat.<\/li>\n<li>B\u00e1o c\u00e1o t\u1ed5ng quan traffics m\u1ed7i ng\u00e0y.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn c\u1ea5u h\u00ecnh <strong>DDoS Premium<\/strong>, b\u1ea1n vui l\u00f2ng click t\u1ea1i <a href=\"http:\/\/docs.demo.vnso.vn\/knowledge-base\/huong-dan-su-dung-goi-anti-ddos-premium\/\" target=\"_blank\" rel=\"noopener\">\u0110\u00c2Y<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Khi b\u1ea1n \u0111\u00e3 \u0111\u0103ng k\u00fd d\u1ecbch v\u1ee5 VPS\/server c\u1ee7a VNSO, th\u00ec VPS c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi DDoS Secure. V\u1eady DDoS l\u00e0 g\u00ec v\u00e0 H\u1ec7 th\u1ed1ng DDoS Secure c\u1ee7a VNSO b\u1ea3o v\u1ec7 VPS\/server c\u1ee7a b\u1ea1n nh\u01b0 th\u1ebf n\u00e0o? Trong b\u00e0i vi\u1ebft nay, VNSO s\u1ebd gi\u1ea3i th\u00edch cho c\u00e1c b\u1ea1n r\u00f5 h\u01a1n v\u1ec1 v\u1ea5n [&hellip;]<\/p>","protected":false},"author":1,"featured_media":10803,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52],"tags":[73],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.3 (Yoast SEO v22.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H\u1ec7 th\u1ed1ng DDoS Secure | C\u00d4NG NGH\u1ec6 VNSO\u2122<\/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:\/\/vnso.vn\/en\/he-thong-ddos-secure\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u1ec7 th\u1ed1ng DDoS Secure\" \/>\n<meta property=\"og:description\" content=\"Khi b\u1ea1n \u0111\u00e3 \u0111\u0103ng k\u00fd d\u1ecbch v\u1ee5 VPS\/server c\u1ee7a VNSO, th\u00ec VPS c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi DDoS Secure. V\u1eady DDoS l\u00e0 g\u00ec v\u00e0 H\u1ec7 th\u1ed1ng DDoS Secure c\u1ee7a VNSO b\u1ea3o v\u1ec7 VPS\/server c\u1ee7a b\u1ea1n nh\u01b0 th\u1ebf n\u00e0o? 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