{"id":636,"date":"2023-04-23T00:47:53","date_gmt":"2023-04-22T17:47:53","guid":{"rendered":"http:\/\/vnso.vn\/?p=636"},"modified":"2024-06-27T10:30:08","modified_gmt":"2024-06-27T03:30:08","slug":"tan-cong-ddos-la-gi-ban-co-the-bao-ve-trang-web-cua-minh-nhu-the-nao-2","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/tan-cong-ddos-la-gi-ban-co-the-bao-ve-trang-web-cua-minh-nhu-the-nao-2\/","title":{"rendered":"T\u1ea5n C\u00f4ng DDoS L\u00e0 G\u00ec, B\u1ea1n C\u00f3 Th\u1ec3 B\u1ea3o V\u1ec7 Trang Web C\u1ee7a M\u00ecnh Nh\u01b0 Th\u1ebf N\u00e0o?"},"content":{"rendered":"

B\u1ea1n \u0111\u00e3 bao gi\u1edd lo l\u1eafng v\u1ec1 vi\u1ec7c trang web c\u1ee7a m\u00ecnh b\u1ecb s\u1eadp ch\u01b0a? Cho d\u00f9 b\u1ea1n \u0111i\u1ec1u h\u00e0nh m\u1ed9t c\u1eeda h\u00e0ng tr\u1ef1c tuy\u1ebfn hay qu\u1ea3n l\u00fd m\u1ed9t blog, m\u1ed9t trang web b\u1ecb s\u1eadp c\u00f3 th\u1ec3 \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c m\u1ea5t l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0 ho\u1ea1t \u0111\u1ed9ng kinh doanh. M\u1eb7c d\u00f9 vi\u1ec7c trang web ng\u1eebng ho\u1ea1t \u0111\u1ed9ng trong th\u1eddi gian ng\u1eafn v\u00e0 kh\u00f4ng th\u01b0\u1eddng xuy\u00ean l\u00e0 \u0111i\u1ec1u b\u00ecnh th\u01b0\u1eddng. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 trang web c\u00f3 th\u1ec3 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00ec l\u00fd do \u0111\u1ed9c h\u1ea1i h\u01a1n nhi\u1ec1u \u2013 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS.<\/p>\r\n\r\n\r\n\r\n

N\u1ebfu b\u1ea1n \u0111\u00e3 t\u1eebng l\u00e0 m\u1ee5c ti\u00eau c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS ho\u1eb7c t\u1ef1 m\u00ecnh ch\u1ee9ng ki\u1ebfn \u200b\u200bm\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng b\u1ea1n s\u1ebd bi\u1ebft ch\u00ednh x\u00e1c n\u00f3 c\u00f3 th\u1ec3 g\u00e2y suy nh\u01b0\u1ee3c nh\u01b0 th\u1ebf n\u00e0o. Tuy nhi\u00ean, ch\u00ednh x\u00e1c th\u00ec cu\u1ed9c t\u1ea5n c\u00f4ng DDoS l\u00e0 g\u00ec v\u00e0 l\u00e0m th\u1ebf n\u00e0o b\u1ea1n c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 trang web c\u1ee7a m\u00ecnh kh\u1ecfi n\u00f3?<\/p>\r\n\r\n\r\n\r\n

H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS nh\u1eb1m \u0111\u00e1nh s\u1eadp c\u00e1c trang web v\u00e0 c\u00e1c b\u01b0\u1edbc b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u1ec3 gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i.<\/p>\r\n\r\n\r\n\r\n

1. T\u1ea5n c\u00f4ng DDoS l\u00e0 g\u00ec?<\/h2>\r\n\r\n\r\n\r\n

M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS, vi\u1ebft t\u1eaft c\u1ee7a Distributed Denial of Service. \u0110\u00e2y l\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng \u00e1p \u0111\u1ea3o m\u00e1y ch\u1ee7, m\u1ea1ng ho\u1eb7c d\u1ecbch v\u1ee5 b\u1eb1ng c\u00e1ch \u00e1p \u0111\u1ea3o n\u00f3 b\u1eb1ng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ed9c h\u1ea1i. M\u1ed9t ki\u1ec3u t\u1ea5n c\u00f4ng DoS (t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5), n\u00f3 l\u00e0m ng\u1eadp d\u1ecbch v\u1ee5 khi\u1ebfn d\u1ecbch v\u1ee5 kh\u00f4ng kh\u1ea3 d\u1ee5ng v\u1edbi l\u01b0u l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng h\u1ee3p ph\u00e1p. Nhi\u1ec1u cu\u1ed9c t\u1ea5n c\u00f4ng DDoS s\u1eed d\u1ee5ng nhi\u1ec1u thi\u1ebft b\u1ecb, bao g\u1ed3m c\u1ea3 m\u00e1y t\u00ednh v\u00e0 thi\u1ebft b\u1ecb IoT (Internet of Things), l\u00e0m ngu\u1ed3n l\u01b0u l\u01b0\u1ee3ng t\u1ea5n c\u00f4ng.<\/p>\r\n\r\n\r\n\r\n

L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 \u0111\u01b0\u1ee3c quy\u1ec1n truy c\u1eadp v\u00e0o nhi\u1ec1u thi\u1ebft b\u1ecb \u0111\u00f3?.\u00a0Th\u00f4ng th\u01b0\u1eddng, c\u00e1c m\u00e1y t\u00ednh v\u00e0 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS b\u1ecb nhi\u1ec5m ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0 b\u1ecb khai th\u00e1c. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 di\u1ec5n ra \u00e2m th\u1ea7m trong n\u1ec1n c\u1ee7a thi\u1ebft b\u1ecb ho\u1eb7c ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 chi\u1ebfm to\u00e0n quy\u1ec1n ki\u1ec3m so\u00e1t.\u00a0Nh\u00f3m thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0\u00a0botnet<\/strong>. M\u1ea1ng n\u00e0y c\u0169ng ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 ph\u1ea7n m\u1ec1m t\u1ed1ng ti\u1ec1n, th\u01b0 r\u00e1c v\u00e0 gian l\u1eadn nh\u1ea5p chu\u1ed9t.<\/p>\r\n\r\n\r\n\r\n

M\u1ed9t cu\u1ed9c\u00a0t\u1ea5n c\u00f4ng DDoS<\/a>\u00a0t\u01b0\u01a1ng t\u1ef1 nh\u01b0 vi\u1ec7c \u0111\u01b0\u1eddng cao t\u1ed1c b\u1ecb k\u1eb9t xe, c\u1ea3n tr\u1edf b\u1ea1n ho\u1eb7c b\u1ea5t k\u1ef3 ai kh\u00e1c \u0111i v\u00e0o \u0111\u01b0\u1eddng cao t\u1ed1c v\u00e0 \u0111\u1ebfn n\u01a1i b\u1ea1n \u0111ang c\u1ed1 g\u1eafng \u0111\u1ebfn.\u00a0Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, \u0111\u00edch \u0111\u1ebfn l\u00e0 trang web c\u1ee7a b\u1ea1n v\u00e0 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp ch\u1eb7n m\u1ecdi ng\u01b0\u1eddi di chuy\u1ec3n l\u00e0 cu\u1ed9c t\u1ea5n c\u00f4ng DDoS.<\/p>\r\n\r\n\r\n\r\n

V\u00ec v\u1eady, r\u00f5 r\u00e0ng m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS c\u00f3 th\u1ec3 l\u00e0m suy y\u1ebfu doanh nghi\u1ec7p. Vi\u1ec7c ng\u0103n ch\u1eb7n kh\u00e1ch h\u00e0ng h\u1ee3p ph\u00e1p truy c\u1eadp trang web c\u00f3 th\u1ec3 g\u00e2y ra t\u1ed5n th\u1ea5t l\u1edbn. H\u00e3y t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS v\u00e0 c\u00e1c lo\u1ea1i kh\u00e1c nhau m\u00e0 b\u1ea1n n\u00ean bi\u1ebft.<\/p>\r\n\r\n\r\n\r\n

>>> Xem th\u00eam:\u00a0Ch\u1ed1ng ddos vps, h\u01b0\u1edbng d\u1eabn c\u00e1ch ch\u1ed1ng ddos cho vps<\/a><\/strong><\/p>\r\n\r\n\r\n\r\n

2. C\u00e1c lo\u1ea1i t\u1ea5n c\u00f4ng DDoS ph\u1ed5 bi\u1ebfn<\/h2>\r\n\r\n\r\n\r\n

Tr\u01b0\u1edbc khi t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c ki\u1ec3u t\u1ea5n c\u00f4ng DDoS ph\u1ed5 bi\u1ebfn nh\u1ea5t, tr\u01b0\u1edbc ti\u00ean ch\u00fang ta c\u1ea7n hi\u1ec3u c\u01a1 b\u1ea3n v\u1ec1 nh\u1eefng g\u00ec ch\u00fang \u0111ang t\u1ea5n c\u00f4ng \u2013 m\u1ea1ng.\u00a0Do k\u1ebft n\u1ed1i m\u1ea1ng l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m kh\u00f4ng h\u1eefu h\u00ecnh n\u00ean n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1eb1ng\u00a0m\u00f4 h\u00ecnh K\u1ebft n\u1ed1i h\u1ec7 th\u1ed1ng m\u1edf (OSI).<\/em>\u00a0M\u00f4 h\u00ecnh n\u00e0y kh\u00e1i ni\u1ec7m h\u00f3a k\u1ebft n\u1ed1i m\u1ea1ng b\u1eb1ng c\u00e1ch chia n\u00f3 th\u00e0nh 7 l\u1edbp.<\/p>\r\n\r\n\r\n\r\n

C\u00e1c l\u1edbp \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau ph\u1ed5 bi\u1ebfn nh\u1ea5t b\u1edfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS l\u00e0 c\u00e1c l\u1edbp M\u1ea1ng, V\u1eadn chuy\u1ec3n, Tr\u00ecnh b\u00e0y v\u00e0 \u1ee8ng d\u1ee5ng. M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS nh\u1eafm v\u00e0o c\u00e1c l\u1edbp c\u1ee5 th\u1ec3 \u0111\u1ec3 l\u00e0m t\u00ea li\u1ec7t k\u1ebft n\u1ed1i t\u1ea1i c\u00e1c \u0111i\u1ec3m kh\u00e1c nhau. Ng\u0103n ng\u01b0\u1eddi d\u00f9ng h\u1ee3p ph\u00e1p truy c\u1eadp trang web c\u1ee7a b\u1ea1n.<\/p>\r\n\r\n\r\n\r\n

2.1. T\u1ea5n c\u00f4ng l\u1edbp \u1ee9ng d\u1ee5ng<\/h3>\r\n\r\n\r\n\r\n

Khi t\u1ea5n c\u00f4ng DDoS l\u1edbp 7, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbp \u1ee9ng d\u1ee5ng nh\u1eafm v\u00e0o giao ti\u1ebfp gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh ho\u1eb7c d\u1ecbch v\u1ee5.\u00a0M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS l\u1edbp \u1ee9ng d\u1ee5ng s\u1ebd t\u1eadp trung v\u00e0o ph\u1ea7n k\u1ebft n\u1ed1i m\u1ea1ng n\u01a1i m\u00e1y ch\u1ee7 t\u1ea1o c\u00e1c trang web v\u00e0 ph\u00e2n ph\u1ed1i ch\u00fang theo y\u00eau c\u1ea7u HTTP.\u00a0C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbp \u1ee9ng d\u1ee5ng \u00e1p \u0111\u1ea3o m\u00e1y ch\u1ee7 b\u1eb1ng c\u00e1ch g\u1eedi m\u1ed9t l\u01b0\u1ee3ng l\u1edbn y\u00eau c\u1ea7u HTTP \u0111\u1ed9c h\u1ea1i, tr\u00f4ng c\u00f3 v\u1ebb h\u1ee3p ph\u00e1p v\u00e0 kh\u00f3 ph\u00e2n bi\u1ec7t v\u1edbi l\u01b0u l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng th\u1ef1c.<\/p>\r\n\r\n\r\n\r\n

Hai lo\u1ea1i ch\u00ednh c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS l\u1edbp \u1ee9ng d\u1ee5ng l\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng tr\u00e0n ng\u1eadp HTTP.\u00a0C\u1ea3 hai cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ec1u \u00e1p \u0111\u1ea3o m\u1ee5c ti\u00eau b\u1eb1ng c\u00e1c y\u00eau c\u1ea7u HTTP, nh\u01b0ng ch\u00fang th\u1ef1c hi\u1ec7n \u0111i\u1ec1u \u0111\u00f3 theo nh\u1eefng c\u00e1ch kh\u00e1c nhau.<\/p>\r\n\r\n\r\n

\r\n
\"eg\"<\/figure><\/div>\r\n\r\n\r\n

Flood\u00a0<\/strong>HTTP<\/strong>\u00a0li\u00ean quan \u0111\u1ebfn vi\u1ec7c nhi\u1ec1u thi\u1ebft b\u1ecb g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn m\u1ed9t m\u00e1y ch\u1ee7 \u0111\u1ec3 l\u1ea5y t\u1ec7p, h\u00ecnh \u1ea3nh, v.v., l\u00e0m qu\u00e1 t\u1ea3i m\u00e1y ch\u1ee7 \u0111\u00edch v\u00e0 d\u1eabn \u0111\u1ebfn t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/p>\r\n\r\n\r\n\r\n

Flood\u00a0<\/strong>HTTP POST<\/strong>\u00a0thay v\u00ec g\u1eedi y\u00eau c\u1ea7u cho n\u1ed9i dung t\u0129nh, h\u00e3y g\u1eedi y\u00eau c\u1ea7u cho c\u00e1c t\u00e0i nguy\u00ean \u0111\u01b0\u1ee3c t\u1ea1o \u0111\u1ed9ng nh\u01b0 g\u1eedi bi\u1ec3u m\u1eabu.<\/p>\r\n\r\n\r\n\r\n

M\u1eb7c d\u00f9 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng d\u1ef1a tr\u00ean kh\u1ed1i l\u01b0\u1ee3ng m\u00e0 ch\u00fang ta s\u1ebd \u0111\u1ec1 c\u1eadp sau, nh\u01b0ng c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbp \u1ee9ng d\u1ee5ng th\u01b0\u1eddng tu\u00e2n theo ph\u01b0\u01a1ng ph\u00e1p \u201cth\u1ea5p v\u00e0 ch\u1eadm\u201d. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u00fang nh\u1ecf h\u01a1n, d\u1ec5 d\u00e0ng l\u1ecdt v\u00e0o t\u1ea7m ng\u1eafm cho \u0111\u1ebfn khi ch\u00fang khu\u1ebfch \u0111\u1ea1i v\u00e0 g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/p>\r\n\r\n\r\n\r\n

2.2. T\u1ea5n c\u00f4ng giao th\u1ee9c<\/h3>\r\n\r\n\r\n\r\n

M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng giao th\u1ee9c l\u1ee3i d\u1ee5ng c\u00e1c \u0111i\u1ec3m y\u1ebfu tr\u00ean l\u1edbp 3 v\u00e0 4 c\u1ee7a m\u00f4 h\u00ecnh OSI.\u00a0Ki\u1ec3u t\u1ea5n c\u00f4ng DDoS n\u00e0y s\u1ebd g\u1eedi nhi\u1ec1u \u201cg\u00f3i\u201d ho\u1eb7c m\u1ea9u d\u1eef li\u1ec7u h\u01a1n m\u1ee9c m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 x\u1eed l\u00fd.\u00a0Ngo\u00e0i ra, m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng giao th\u1ee9c c\u00f3 th\u1ec3 g\u1eedi m\u1ed9t l\u01b0\u1ee3ng b\u0103ng th\u00f4ng qu\u00e1 l\u1edbn \u0111\u1ebfn m\u1ea1ng c\u1ee7a b\u1ea1n.\u00a0D\u00f9 b\u1eb1ng c\u00e1ch n\u00e0o, cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y s\u1ebd ti\u00eau t\u1ed1n t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n v\u00e0 d\u1eabn \u0111\u1ebfn t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/p>\r\n\r\n\r\n\r\n

C\u00f3 hai lo\u1ea1i t\u1ea5n c\u00f4ng giao th\u1ee9c ch\u00ednh: T\u1ea5n c\u00f4ng SYN l\u0169 l\u1ee5t v\u00e0 t\u1ea5n c\u00f4ng Ping of Death (POD).<\/p>\r\n\r\n\r\n\r\n

Flood\u00a0<\/strong>SYN<\/strong>\u00a0t\u1eadn d\u1ee5ng l\u1ee3i th\u1ebf c\u1ee7a TCP, cho ph\u00e9p c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh v\u00e0 thi\u1ebft b\u1ecb g\u1eedi tin nh\u1eafn cho nhau.\u00a0SYN l\u00e0 m\u1ed9t lo\u1ea1i g\u00f3i TCP, \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111\u1ec3 y\u00eau c\u1ea7u k\u1ebft n\u1ed1i.\u00a0Thi\u1ebft b\u1ecb nh\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111\u00f3 s\u1ebd c\u1ed1 g\u1eafng g\u1eedi l\u1ea1i ph\u1ea3n h\u1ed3i SYN-ACK.\u00a0Cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y khai th\u00e1c m\u1ed9t \u0111i\u1ec3m y\u1ebfu trong qu\u00e1 tr\u00ecnh n\u00e0y, g\u1eedi nhi\u1ec1u y\u00eau c\u1ea7u SYN m\u00e0 kh\u00f4ng ph\u1ea3n h\u1ed3i l\u1ea1i ph\u1ea3n h\u1ed3i SYN-ACK.\u00a0Khi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau ch\u1edd x\u00e1c nh\u1eadn ph\u1ea3n h\u1ed3i \u0111\u00f3, c\u00e1c k\u1ebft n\u1ed1i m\u1edbi kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u00e0 c\u00e1c y\u00eau c\u1ea7u g\u1eedi \u0111\u1ebfn s\u1ebd b\u1ecb t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/p>\r\n\r\n\r\n\r\n

Ping of Death<\/strong>, ho\u1eb7c POD, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng c\u00f3 m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn kh\u00e1c.\u00a0S\u1eed d\u1ee5ng l\u1ec7nh ping, cu\u1ed9c t\u1ea5n c\u00f4ng DDoS n\u00e0y s\u1ebd g\u1eedi nhi\u1ec1u g\u00f3i qu\u00e1 kh\u1ed5 \u0111\u1ebfn m\u1ee5c ti\u00eau.\u00a0M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng Ping of Death c\u00f3 th\u1ec3 g\u1eedi c\u00e1c g\u00f3i l\u1edbn h\u01a1n\u00a0k\u00edch th\u01b0\u1edbc g\u00f3i t\u1ed1i \u0111a\u00a0v\u00ec n\u00f3 g\u1eedi ch\u00fang d\u01b0\u1edbi d\u1ea1ng c\u00e1c \u0111o\u1ea1n.\u00a0Khi m\u00e1y ch\u1ee7 nh\u1eadn t\u1eadp h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c m\u1ea3nh, d\u1eef li\u1ec7u s\u1ebd tr\u00e0n v\u00e0 g\u00e2y ra s\u1ef1 t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/p>","protected":false},"excerpt":{"rendered":"

B\u1ea1n \u0111\u00e3 bao gi\u1edd lo l\u1eafng v\u1ec1 vi\u1ec7c trang web c\u1ee7a m\u00ecnh b\u1ecb s\u1eadp ch\u01b0a? Cho d\u00f9 b\u1ea1n \u0111i\u1ec1u h\u00e0nh m\u1ed9t c\u1eeda h\u00e0ng tr\u1ef1c tuy\u1ebfn hay qu\u1ea3n l\u00fd m\u1ed9t blog, m\u1ed9t trang web b\u1ecb s\u1eadp c\u00f3 th\u1ec3 \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c m\u1ea5t l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0 ho\u1ea1t \u0111\u1ed9ng kinh doanh. M\u1eb7c d\u00f9 vi\u1ec7c trang […]<\/p>","protected":false},"author":1,"featured_media":17434,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[301],"tags":[],"yoast_head":"\nT\u1ea5n C\u00f4ng DDoS L\u00e0 G\u00ec, B\u1ea1n C\u00f3 Th\u1ec3 B\u1ea3o V\u1ec7 Trang Web C\u1ee7a M\u00ecnh Nh\u01b0 Th\u1ebf N\u00e0o? | C\u00d4NG NGH\u1ec6 VNSO\u2122<\/title>\n<meta name=\"description\" content=\"B\u1ea1n \u0111\u00e3 bao gi\u1edd lo l\u1eafng v\u1ec1 vi\u1ec7c trang web c\u1ee7a m\u00ecnh b\u1ecb s\u1eadp ch\u01b0a? 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