{"id":12376855,"date":"2026-03-19T00:00:11","date_gmt":"2026-03-18T16:00:11","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/vps%e4%b8%bb%e6%9c%ba%e5%ae%8c%e5%85%a8%e6%8c%87%e5%8d%97%ef%bc%9a%e4%bb%8e%e6%96%b0%e6%89%8b%e5%85%a5%e9%97%a8%e5%88%b0%e8%bf%9b%e9%98%b6%e9%85%8d%e7%bd%ae%e4%b8%8e%e7%ae%a1%e7%90%86%e6%8a%80\/"},"modified":"2026-03-19T00:02:23","modified_gmt":"2026-03-18T16:02:23","slug":"vps-hosting-complete-guide-beginner-to-advanced-configuration-management","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/vps-hosting\/vps-hosting-complete-guide-beginner-to-advanced-configuration-management\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 VPS: T\u1eeb c\u01a1 b\u1ea3n cho ng\u01b0\u1eddi m\u1edbi \u0111\u1ebfn k\u1ef9 thu\u1eadt c\u1ea5u h\u00ecnh v\u00e0 qu\u1ea3n l\u00fd n\u00e2ng cao"},"content":{"rendered":"

Trong k\u1ef7 nguy\u00ean k\u1ef9 thu\u1eadt s\u1ed1 ng\u00e0y nay, d\u00f9 l\u00e0 x\u00e2y d\u1ef1ng blog c\u00e1 nh\u00e2n, trang web doanh nghi\u1ec7p, hay th\u1ef1c hi\u1ec7n c\u00e1c c\u00f4ng vi\u1ec7c ph\u00e1t tri\u1ec3n, ki\u1ec3m th\u1eed v\u00e0 tri\u1ec3n khai \u1ee9ng d\u1ee5ng, vi\u1ec7c s\u1edf h\u1eefu m\u1ed9t m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7 \u0111\u1ed9c l\u1eadp, linh ho\u1ea1t v\u00e0 c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c l\u00e0 \u0111i\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng. M\u00e1y ch\u1ee7 \u1ea3o ri\u00eang (VPS \u2013 Virtual Private Server) ch\u00ednh l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng, n\u1eb1m gi\u1eefa m\u00e1y ch\u1ee7 chia s\u1ebb v\u00e0 m\u00e1y ch\u1ee7 \u0111\u1ed9c l\u1eadp; n\u00f3 cung c\u1ea5p cho b\u1ea1n c\u00e1c ngu\u1ed3n l\u1ef1c m\u00e1y ch\u1ee7 \u201c\u0111\u1ed9c quy\u1ec1n\u201d m\u00e0 v\u1eabn c\u00f3 m\u1ee9c gi\u00e1 ph\u1ea3i ch\u0103ng. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd h\u1ec7 th\u1ed1ng h\u00f3a qu\u00e1 tr\u00ecnh gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u v\u1ec1 VPS t\u1eeb \u0111\u1ea7u, cho \u0111\u1ebfn khi b\u1ea1n n\u1eafm v\u1eefng c\u00e1c k\u1ef9 n\u0103ng c\u1ea5u h\u00ecnh v\u00e0 qu\u1ea3n l\u00fd c\u1ed1t l\u00f5i c\u1ee7a n\u00f3.<\/p>\n\n\n\n

VPS Hosting l\u00e0 g\u00ec v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3<\/h2>\n\n\n\n

VPS (Virtual Private Server) l\u00e0 lo\u1ea1i d\u1ecbch v\u1ee5 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 \u1ea3o h\u00f3a \u0111\u1ec3 chia m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd c\u00f3 hi\u1ec7u su\u1ea5t cao th\u00e0nh nhi\u1ec1u m\u00e1y ch\u1ee7 \u1ea3o \u0111\u1ed9c l\u1eadp v\u00e0 \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp v\u1edbi nhau. M\u1ed7i VPS \u0111\u1ec1u c\u00f3 th\u1ec3 ch\u1ea1y h\u1ec7 \u0111i\u1ec1u h\u00e0nh ri\u00eang, c\u00f9ng v\u1edbi c\u00e1c ngu\u1ed3n l\u1ef1c nh\u01b0 CPU, b\u1ed9 nh\u1edb, kh\u00f4ng gian \u0111\u0129a v\u00e0 b\u0103ng th\u00f4ng d\u00e0nh ri\u00eang. C\u00e1ch th\u1ee9c v\u1eadn h\u00e0nh v\u00e0 qu\u1ea3n l\u00fd m\u1ed9t VPS gi\u1ed1ng h\u1ec7t nh\u01b0 m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd th\u1ef1c th\u1ee5.<\/p>\n\n\n\n

Nguy\u00ean l\u00fd c\u00f4ng ngh\u1ec7 \u1ea3o h\u00f3a c\u1ee7a VPS (Virtual Private Server)<\/h3>\n\n\n\n

Tr\u1ecdng t\u00e2m c\u1ee7a gi\u1ea3i ph\u00e1p n\u00e0y n\u1eb1m \u1edf l\u1edbp \u1ea3o h\u00f3a (Hypervisor). C\u00e1c ngu\u1ed3n l\u1ef1c ph\u1ea7n c\u1ee9ng c\u1ee7a m\u00e1y ch\u1ee7 v\u1eadt l\u00fd \u0111\u01b0\u1ee3c tr\u1eebu t\u01b0\u1ee3ng h\u00f3a v\u00e0 t\u1eadp trung th\u00f4ng qua m\u1ed9t l\u1edbp ph\u1ea7n m\u1ec1m g\u1ecdi l\u00e0 Hypervisor. L\u1edbp ph\u1ea7n m\u1ec1m n\u00e0y n\u1eb1m gi\u1eefa ph\u1ea7n c\u1ee9ng v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh, c\u00f3 nhi\u1ec7m v\u1ee5 t\u1ea1o ra c\u00e1c m\u00e1y \u1ea3o, ph\u00e2n b\u1ed5 t\u00e0i nguy\u00ean, v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c m\u00e1y \u1ea3o \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp v\u1edbi nhau. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ngay c\u1ea3 khi ngu\u1ed3n l\u1ef1c c\u1ee7a c\u00e1c ng\u01b0\u1eddi d\u00f9ng VPS kh\u00e1c tr\u00ean c\u00f9ng m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd b\u1ecb c\u1ea1n ki\u1ec7t ho\u1eb7c b\u1ecb t\u1ea5n c\u00f4ng, m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a VPS c\u1ee7a b\u1ea1n v\u1eabn s\u1ebd kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng, t\u1eeb \u0111\u00f3 \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o m\u1eadt.<\/p>\n

\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 VPS: T\u1eeb l\u1ef1a ch\u1ecdn \u0111\u1ebfn th\u1ef1c h\u00e0nh qu\u1ea3n l\u00fd m\u00e1y ch\u1ee7 chi ti\u1ebft<\/a>\u3002<\/p>\n\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa VPS, m\u00e1y ch\u1ee7 chia s\u1ebb (shared hosting) v\u00e0 m\u00e1y ch\u1ee7 \u0111\u00e1m m\u00e2y (cloud server)<\/h3>\n\n\n\n

So v\u1edbi m\u00e1y ch\u1ee7 chia s\u1ebb (shared hosting), VPS (Virtual Private Server) mang l\u1ea1i quy\u1ec1n ki\u1ec3m so\u00e1t cao h\u01a1n v\u00e0 \u0111\u1ed9 b\u1ea3o \u0111\u1ea3m v\u1ec1 t\u00e0i nguy\u00ean t\u1ed1t h\u01a1n. Trong m\u00e1y ch\u1ee7 chia s\u1ebb, t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng c\u00f9ng s\u1eed d\u1ee5ng chung m\u1ed9t b\u1ed9 t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng v\u00e0 c\u1ea5u h\u00ecnh m\u00f4i tr\u01b0\u1eddng, d\u1eabn \u0111\u1ebfn nguy c\u01a1 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nh\u1eefng ng\u01b0\u1eddi d\u00f9ng kh\u00e1c; trong khi \u0111\u00f3, VPS mang \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m s\u1eed d\u1ee5ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u1ed9t m\u00e1y ch\u1ee7 ri\u00eang v\u1edbi quy\u1ec1n truy c\u1eadp \u201croot\u201d. So v\u1edbi c\u00e1c m\u00e1y ch\u1ee7 \u0111\u00e1m m\u00e2y (nh\u01b0 AWS EC2, Alibaba Cloud ECS), VPS truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd duy nh\u1ea5t, trong khi c\u00e1c m\u00e1y ch\u1ee7 \u0111\u00e1m m\u00e2y d\u1ef1a tr\u00ean c\u00e1c c\u1ee5m ph\u00e2n t\u00e1n quy m\u00f4 l\u1edbn, v\u00ec v\u1eady ch\u00fang c\u00f3 \u01b0u th\u1ebf v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng linh ho\u1ea1t v\u00e0 ph\u1ee5c h\u1ed3i sau s\u1ef1 c\u1ed1. Tuy nhi\u00ean, VPS v\u1eabn \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u1ec1 \u0111\u1ed9 \u0111\u01a1n gi\u1ea3n, t\u00ednh minh b\u1ea1ch v\u00e0 gi\u00e1 tr\u1ecb chi ph\u00ed.<\/p>\n\n\n

\n\n
\n HostArmada VPS Hosting<\/strong>\n
Cloud SSD\/NVMe + t\u0103ng t\u1ed1c b\u1ed9 nh\u1edb \u0111\u1ec7m nhi\u1ec1u l\u1edbp, h\u1ed7 tr\u1ee3 24\/7\/365, th\u1eddi gian ph\u1ea3n h\u1ed3i r\u00f5 r\u00e0ng, VPS 7 ng\u00e0y \u0111\u1ea3m b\u1ea3o ho\u00e0n ti\u1ec1n, thanh to\u00e1n ngay \u0111\u1ec3 nh\u1eadn \u01b0u \u0111\u00e3i gi\u1ea3m 50%<\/div>\n <\/div>\n\n
\n \n \n \"VPS\n \n \n <\/a>\n \n \n Truy c\u1eadp HostArmada <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00e1p VPS ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n?<\/h2>\n\n\n\n

Vi\u1ec7c ch\u1ecdn m\u1ed9t VPS (M\u00e1y \u1ea3o chuy\u00ean d\u1ee5ng) ph\u00f9 h\u1ee3p l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00e0nh c\u00f4ng. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau nh\u1eb1m tr\u00e1nh l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean ho\u1eb7c c\u00e1c r\u00e0o c\u1ea3n v\u1ec1 hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n

H\u00e3y \u0111\u00e1nh gi\u00e1 nh\u1eefng nhu c\u1ea7u c\u1ed1t l\u00f5i c\u1ee7a b\u1ea1n.<\/h3>\n\n\n\n

Tr\u01b0\u1edbc h\u1ebft, h\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng c\u1ee7a b\u1ea1n. B\u1ea1n c\u00f3 mu\u1ed1n x\u00e2y d\u1ef1ng m\u1ed9t blog WordPress c\u00e1 nh\u00e2n v\u1edbi l\u01b0\u1ee3ng truy c\u1eadp h\u00e0ng ng\u00e0y kh\u00f4ng l\u1edbn, hay mu\u1ed1n v\u1eadn h\u00e0nh m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1eb7c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u s\u1eed d\u1ee5ng nhi\u1ec1u t\u00e0i nguy\u00ean (nh\u01b0 CPU, b\u1ed9 nh\u1edb, I\/O \u0111\u0129a v\u00e0 b\u0103ng th\u00f4ng m\u1ea1ng) m\u1ed9t c\u00e1ch li\u00ean t\u1ee5c? C\u00e1c nhu c\u1ea7u v\u1ec1 CPU, b\u1ed9 nh\u1edb, I\/O \u0111\u0129a v\u00e0 b\u0103ng th\u00f4ng m\u1ea1ng kh\u00e1c nhau t\u00f9y theo m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. V\u00ed d\u1ee5, c\u00e1c trang web ch\u1ee9a n\u1ed9i dung th\u01b0\u1eddng c\u1ea7n nhi\u1ec1u b\u1ed9 nh\u1edb v\u00e0 dung l\u01b0\u1ee3ng \u0111\u0129a h\u01a1n, trong khi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng cao c\u00f9ng l\u00fac (high-concurrency applications) l\u1ea1i \u0111\u00f2i h\u1ecfi hi\u1ec7u n\u0103ng CPU v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng m\u1ea1ng t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

Chi ti\u1ebft v\u1ec1 c\u00e1c tham s\u1ed1 quan tr\u1ecdng<\/h3>\n\n\n\n

1. S\u1ed1 l\u01b0\u1ee3ng nh\u00e2n CPU: \u0110i\u1ec1u n\u00e0y quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng x\u1eed l\u00fd song song c\u1ee7a m\u00e1y ch\u1ee7. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng trang web, 1\u20132 nh\u00e2n vCPU l\u00e0 \u0111\u1ee7 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ban \u0111\u1ea7u.
\n2. B\u1ed9 nh\u1edb (RAM): \u1ea2nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u (request) m\u00e0 trang web ho\u1eb7c \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00f9ng l\u00fac. H\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux c\u0169ng y\u00eau c\u1ea7u m\u1ed9t l\u01b0\u1ee3ng b\u1ed9 nh\u1edb nh\u1ea5t \u0111\u1ecbnh; \u0111\u1ed1i v\u1edbi c\u00e1c trang web nh\u1ecf, khuy\u1ebfn ngh\u1ecb b\u1eaft \u0111\u1ea7u v\u1edbi 1GB b\u1ed9 nh\u1edb.
\n3. Lo\u1ea1i l\u01b0u tr\u1eef v\u00e0 dung l\u01b0\u1ee3ng: \u1ed4 \u0111\u0129a HDD truy\u1ec1n th\u1ed1ng c\u00f3 gi\u00e1 r\u1ebb, dung l\u01b0\u1ee3ng l\u1edbn nh\u01b0ng t\u1ed1c \u0111\u1ed9 ch\u1eadm; \u1ed5 \u0111\u0129a SSD (Solid State Drive) c\u00f3 t\u1ed1c \u0111\u1ed9 cao, gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 h\u1ec7 th\u1ed1ng, hi\u1ec7n \u0111ang l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn nh\u1ea5t. Ngo\u00e0i ra, c\u0169ng c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn hi\u1ec7u n\u0103ng I\/O (\u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra) c\u1ee7a b\u1ed9 l\u01b0u tr\u1eef.
\n4. B\u0103ng th\u00f4ng v\u00e0 l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u: B\u0103ng th\u00f4ng l\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u, quy\u1ebft \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 truy c\u1eadp; l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u00e0 t\u1ed5ng l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i trong m\u1ed9t th\u00e1ng. H\u00e3y ch\u1ecdn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 c\u00f3 b\u0103ng th\u00f4ng \u0111\u1ee7 l\u1edbn v\u00e0 h\u1ea1n m\u1ee9c l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng gi\u1edbi h\u1ea1n ho\u1eb7c cao.
\n5. M\u1ea1ng v\u00e0 \u0111\u01b0\u1eddng truy\u1ec1n: \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng trong n\u01b0\u1edbc, v\u1ecb tr\u00ed trung t\u00e2m d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01b0\u1eddng truy\u1ec1n m\u1ea1ng (ch\u1eb3ng h\u1ea1n nh\u01b0 CN2 GIA) c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 tr\u1ec5 k\u1ebft n\u1ed1i v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a d\u1ecbch v\u1ee5.<\/p>\n\n\n\n

Ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e1ng tin c\u1eady<\/h3>\n\n\n\n

Ngo\u00e0i c\u00e1c th\u00f4ng s\u1ed1 ph\u1ea7n c\u1ee9ng, \u0111\u1ed9 tin c\u1eady c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 c\u0169ng r\u1ea5t quan tr\u1ecdng. H\u00e3y xem x\u00e9t \u0111\u00e1nh gi\u00e1 v\u1ec1 uy t\u00edn c\u1ee7a h\u1ecd, c\u00e1c cam k\u1ebft v\u1ec1 t\u1ef7 l\u1ec7 s\u1eb5n s\u00e0ng ph\u1ee5c v\u1ee5 (SLA \u2013 Service Level Agreement), t\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i c\u1ee7a d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt, ph\u01b0\u01a1ng th\u1ee9c thanh to\u00e1n, v\u00e0 li\u1ec7u h\u1ecd c\u00f3 cung c\u1ea5p t\u00ednh n\u0103ng sao l\u01b0u d\u1eef li\u1ec7u mi\u1ec5n ph\u00ed hay kh\u00f4ng. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u, n\u00ean ch\u1ecdn nh\u1eefng nh\u00e0 cung c\u1ea5p cung c\u1ea5p c\u00e1c \u1ee9ng d\u1ee5ng c\u00e0i \u0111\u1eb7t m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng v\u00e0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n qu\u1ea3n tr\u1ecb (nh\u01b0 cPanel\/Plesk \u2013 c\u00f3 th\u1ec3 c\u1ea7n tr\u1ea3 th\u00eam ph\u00ed) \u0111\u1ec3 gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong qu\u00e1 tr\u00ecnh qu\u1ea3n l\u00fd.<\/p>\n

\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 VPS: T\u1eeb kh\u00e1i ni\u1ec7m, mua s\u1eafm \u0111\u1ebfn qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3<\/a>\u3002<\/p>\n\n\n\n\n

C\u00e0i \u0111\u1eb7t ban \u0111\u1ea7u v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n<\/h2>\n\n\n\n

Sau khi mua VPS th\u00e0nh c\u00f4ng, vi\u1ec7c \u0111\u0103ng nh\u1eadp l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0 thi\u1ebft l\u1eadp c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n l\u00e0 nh\u1eefng b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng.<\/p>\n\n\n\n

\u0110\u0103ng nh\u1eadp l\u1ea7n \u0111\u1ea7u v\u00e0 c\u1eadp nh\u1eadt h\u1ec7 th\u1ed1ng<\/h3>\n\n\n\n

H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u1ec1u cung c\u1ea5p m\u1eadt kh\u1ea9u ban \u0111\u1ea7u cho t\u00e0i kho\u1ea3n root ho\u1eb7c kh\u00f3a SSH. B\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng c\u1ee5 k\u1ebft n\u1ed1i SSH (ch\u1eb3ng h\u1ea1n nh\u01b0 PuTTY, Termius ho\u1eb7c terminal h\u1ec7 th\u1ed1ng) \u0111\u1ec3 k\u1ebft n\u1ed1i v\u00e0o m\u00e1y ch\u1ee7. \u0110i\u1ec1u \u0111\u1ea7u ti\u00ean c\u1ea7n l\u00e0m sau khi \u0111\u0103ng nh\u1eadp l\u00e0 c\u1eadp nh\u1eadt c\u00e1c g\u00f3i ph\u1ea7n m\u1ec1m h\u1ec7 th\u1ed1ng nh\u1eb1m kh\u1eafc ph\u1ee5c c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt \u0111\u00e3 bi\u1ebft \u0111\u1ebfn.
\nL\u1ea5y h\u1ec7 \u0111i\u1ec1u h\u00e0nh Ubuntu\/Debian l\u00e0m v\u00ed d\u1ee5, h\u00e3y th\u1ef1c hi\u1ec7n:
\nsudo apt update && sudo apt upgrade -y<\/code><\/p>\n\n\n\n

T\u1ea1o ng\u01b0\u1eddi d\u00f9ng m\u1edbi v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a quy\u1ec1n \u0111\u0103ng nh\u1eadp tr\u1ef1c ti\u1ebfp b\u1eb1ng t\u00e0i kho\u1ea3n root.<\/h3>\n\n\n\n

Vi\u1ec7c lu\u00f4n s\u1eed d\u1ee5ng ng\u01b0\u1eddi d\u00f9ng root \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c l\u00e0 r\u1ea5t nguy hi\u1ec3m. Thay v\u00e0o \u0111\u00f3, b\u1ea1n n\u00ean t\u1ea1o m\u1ed9t ng\u01b0\u1eddi d\u00f9ng b\u00ecnh th\u01b0\u1eddng c\u00f3 quy\u1ec1n sudo v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a kh\u1ea3 n\u0103ng \u0111\u0103ng nh\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o t\u00e0i kho\u1ea3n root th\u00f4ng qua SSH.
\n1. Th\u00eam ng\u01b0\u1eddi d\u00f9ng m\u1edbi:adduser yourusername<\/code>
\n2. C\u1ea5p quy\u1ec1n sudo:usermod -aG sudo yourusername<\/code>
\n3. Chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 ki\u1ec3m th\u1eed quy\u1ec1n sudo cho ng\u01b0\u1eddi d\u00f9ng m\u1edbi.
\n4. Ch\u1ec9nh s\u1eeda t\u1ec7p c\u1ea5u h\u00ecnh SSH:sudo nano \/etc\/ssh\/sshd_config<\/code>T\u00ecm th\u1ea5yPermitRootLogin<\/code>M\u1ed9t d\u00f2ng\u2026 H\u00e3y thay \u0111\u1ed5i n\u00f3 th\u00e0nh: \u201cM\u1ed9t d\u00f2ng.\u201dno<\/code>\u3002
\n5. Kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5 SSH:sudo systemctl restart sshd<\/code><\/p>\n\n

\r\n\t\r\n\t\t\r\n\t\r\n\t
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\r\n\t\t\t\r\n\t\t\t
\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"M\u00e1y\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t
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\r\n\t\t\t\t\tM\u00e1y ch\u1ee7 VPS Bluehost<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\tB\u1ed9 x\u1eed l\u00fd AMD EPYC th\u1ebf h\u1ec7 m\u1edbi, b\u1ed9 nh\u1edb DDR5 + l\u01b0u tr\u1eef NVMe SSD, h\u1ed7 tr\u1ee3 tr\u00f2 chuy\u1ec7n tr\u1ef1c tuy\u1ebfn v\u00e0 \u0111i\u1ec7n tho\u1ea1i 24\/7<\/span>\r\n\t\t\t\t
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\u01afu \u0111\u00e3i t\u1ed1i \u0111a 32%<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp Bluehost VPS Hosting \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n\t\r\n\t
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\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"M\u00e1y\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t
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\r\n\t\t\t\t\tM\u00e1y ch\u1ee7 VPS UltaHost<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\tCPU AMD EPYC, \u0111\u1ea3m b\u1ea3o th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng 99.99%, b\u1ea3o \u0111\u1ea3m ho\u00e0n ti\u1ec1n trong 30 ng\u00e0y<\/span>\r\n\t\t\t\t
\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t \r\n\t\t\t
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\u01afu \u0111\u00e3i gi\u1ea3m 10% c\u00f3 th\u1eddi h\u1ea1n<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp VPS Hosting UltaHost \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n<\/div>\r\n\r\n\r\n\n\n\n\n\n\n\n

C\u1ea5u h\u00ecnh x\u00e1c th\u1ef1c SSH b\u1eb1ng kh\u00f3a v\u00e0 t\u01b0\u1eddng l\u1eeda<\/h3>\n\n\n\n

Vi\u1ec7c \u0111\u0103ng nh\u1eadp b\u1eb1ng m\u1eadt kh\u1ea9u r\u1ea5t d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u201cbrute force\u201d (th\u1eed m\u1ecdi k\u1ebft h\u1ee3p m\u1eadt kh\u1ea9u c\u00f3 th\u1ec3). C\u00e1ch an to\u00e0n h\u01a1n l\u00e0 s\u1eed d\u1ee5ng c\u1eb7p kh\u00f3a SSH (kh\u00f3a c\u00f4ng khai v\u00e0 kh\u00f3a ri\u00eang t\u01b0) \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng.
\n1. T\u1ea1o m\u1ed9t c\u1eb7p kh\u00f3a tr\u00ean m\u00e1y t\u00ednh c\u1ee5c b\u1ed9 (n\u1ebfu ch\u01b0a c\u00f3).
\n2. T\u1ea3i kh\u00f3a c\u00f4ng khai l\u00ean VPS c\u1ee7a b\u1ea1n.~\/.ssh\/authorized_keys<\/code>t\u1ec7p.
\n3. V\u00f4 hi\u1ec7u h\u00f3a vi\u1ec7c \u0111\u0103ng nh\u1eadp b\u1eb1ng m\u1eadt kh\u1ea9u trong t\u1eadp tin c\u1ea5u h\u00ecnh SSH: H\u00e3y th\u1ef1c hi\u1ec7n theo c\u00e1c b\u01b0\u1edbc sau:PasswordAuthentication<\/code>\u0110\u1eb7t th\u00e0nhno<\/code>\u3002<\/p>\n\n\n\n

K\u00edch ho\u1ea1t t\u01b0\u1eddng l\u1eeda l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 b\u1ed5 sung n\u1eefa. H\u00e3y s\u1eed d\u1ee5ng n\u00f3.ufw<\/code>(Uncomplicated Firewall) R\u1ea5t d\u1ec5 \u0111\u1ec3 qu\u1ea3n l\u00fd.
\n1. C\u00e0i \u0111\u1eb7t v\u00e0 k\u00edch ho\u1ea1t UFW (Uncomplicated Firewall):sudo apt install ufw && sudo ufw enable<\/code>
\n2. T\u1eeb ch\u1ed1i m\u1ecdi y\u00eau c\u1ea7u truy c\u1eadp v\u00e0o (inbound requests) theo m\u1eb7c \u0111\u1ecbnh; cho ph\u00e9p m\u1ecdi y\u00eau c\u1ea7u truy c\u1eadp ra (outbound requests).sudo ufw default deny incoming<\/code> sudo ufw default allow outgoing<\/code>
\n3. M\u1edf c\u00e1c c\u1ed5ng c\u1ea7n thi\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 SSH (22), HTTP (80), HTTPS (443):sudo ufw allow 22\/tcp<\/code> sudo ufw allow 80,443\/tcp<\/code><\/p>\n\n\n\n

C\u1ea5u h\u00ecnh n\u00e2ng cao v\u00e0 tri\u1ec3n khai c\u00e1c d\u1ecbch v\u1ee5 ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n

Sau khi c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai v\u00e0 ho\u00e0n t\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh tri\u1ec3n khai d\u1ecbch v\u1ee5 c\u1ee7a m\u00ecnh. D\u01b0\u1edbi \u0111\u00e2y, ch\u00fang ta s\u1ebd l\u1ea5y v\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c tri\u1ec3n khai m\u1ed9t m\u00f4i tr\u01b0\u1eddng LNMP (Linux, Nginx, MySQL, PHP) \u2013 \u0111\u00e2y l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ch\u1ea1y c\u00e1c \u1ee9ng d\u1ee5ng PHP nh\u01b0 WordPress.<\/p>\n

\u0110\u1ecdc th\u00eam T\u00ecm hi\u1ec3u s\u00e2u v\u1ec1 c\u00e1c m\u00e1y ch\u1ee7 \u0111\u1ed9c l\u1eadp: N\u1ec1n t\u1ea3ng cho vi\u1ec7c tri\u1ec3n khai \u1edf c\u1ea5p \u0111\u1ed9 doanh nghi\u1ec7p v\u00e0 x\u00e2y d\u1ef1ng c\u00e1c trang web c\u00f3 hi\u1ec7u su\u1ea5t cao<\/a>\u3002<\/p>\n\n\n\n\n

C\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web (Nginx)<\/h3>\n\n\n\n

Nginx n\u1ed5i ti\u1ebfng v\u1edbi hi\u1ec7u su\u1ea5t cao v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 b\u1ed9 nh\u1edb th\u1ea5p. L\u1ec7nh c\u00e0i \u0111\u1eb7t:sudo apt install nginx -y<\/code>Sau khi c\u00e0i \u0111\u1eb7t xong, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng n\u00f3 th\u00f4ng qua\u2026sudo systemctl start nginx<\/code>Kh\u1edfi \u0111\u1ed9ng \u1ee9ng d\u1ee5ng v\u00e0 thi\u1ebft l\u1eadp \u0111\u1ec3 n\u00f3 t\u1ef1 \u0111\u1ed9ng ch\u1ea1y m\u1ed7i khi m\u00e1y t\u00ednh kh\u1edfi \u0111\u1ed9ng:sudo systemctl enable nginx<\/code>L\u00fac n\u00e0y, n\u1ebfu b\u1ea1n truy c\u1eadp \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 c\u1ee7a m\u00ecnh trong tr\u00ecnh duy\u1ec7t, b\u1ea1n s\u1ebd th\u1ea5y trang ch\u00e0o m\u1eebng c\u1ee7a Nginx. T\u1eadp tin c\u1ea5u h\u00ecnh trang web th\u01b0\u1eddng n\u1eb1m \u1edf \u0111\u00e2u \u0111\u00f3 trong th\u01b0 m\u1ee5c c\u1ea5u h\u00ecnh c\u1ee7a m\u00e1y ch\u1ee7.\/etc\/nginx\/sites-available\/<\/code>th\u01b0 m\u1ee5c ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

C\u00e0i \u0111\u1eb7t C\u01a1 s\u1edf d\u1eef li\u1ec7u (MySQL\/MariaDB) v\u00e0 PHP<\/h3>\n\n\n\n

MariaDB l\u00e0 m\u1ed9t nh\u00e1nh ph\u1ed5 bi\u1ebfn c\u1ee7a MySQL. L\u1ec7nh c\u00e0i \u0111\u1eb7t:sudo apt install mariadb-server -y<\/code>Sau khi c\u00e0i \u0111\u1eb7t xong, nh\u1edb ch\u1eafc ch\u1eafn ph\u1ea3i ch\u1ea1y script kh\u1edfi t\u1ea1o b\u1ea3o m\u1eadt.sudo mysql_secure_installation<\/code>H\u00e3y thi\u1ebft l\u1eadp m\u1eadt kh\u1ea9u cho t\u00e0i kho\u1ea3n root, sau \u0111\u00f3 x\u00f3a c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m v\u00e0 ng\u01b0\u1eddi d\u00f9ng \u1ea9n danh.<\/p>\n\n\n

\n\n
\n hosting.comVPS Hosting<\/strong>\n
SSL mi\u1ec5n ph\u00ed, Cloudflare CDN, WAF, 99.9% th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng SLA, CPU AMD EPYC\u2122 v\u00e0 l\u01b0u tr\u1eef NVMe, \u01b0u \u0111\u00e3i l\u00ean \u0111\u1ebfn 50%<\/div>\n <\/div>\n\n
\n \n \n \"VPS\n \n \n <\/a>\n \n \n Truy c\u1eadp hosting.com <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\n

Ti\u1ebfp theo, h\u00e3y c\u00e0i \u0111\u1eb7t PHP c\u00f9ng c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (extensions) c\u1ea7n thi\u1ebft \u0111\u1ec3 PHP ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u1edbi Nginx v\u00e0 MySQL:sudo apt install php-fpm php-mysql php-cli php-curl php-gd php-mbstring -y<\/code>Sau khi c\u00e0i \u0111\u1eb7t xong, b\u1ea1n c\u1ea7n th\u00eam c\u00e1c l\u1ec7nh chuy\u1ec3n ti\u1ebfp y\u00eau c\u1ea7u PHP \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 ph\u00f9 h\u1ee3p trong t\u1eadp tin c\u1ea5u h\u00ecnh trang web c\u1ee7a Nginx.php-fpm<\/code>X\u1eed l\u00fd ti\u1ebfn tr\u00ecnh (Process handling).<\/p>\n\n\n\n

Tri\u1ec3n khai \u1ee9ng d\u1ee5ng trang web<\/h3>\n\n\n\n

Sau khi ho\u00e0n t\u1ea5t c\u1ea5u h\u00ecnh m\u00f4i tr\u01b0\u1eddng, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i m\u00e3 ngu\u1ed3n trang web c\u1ee7a m\u00ecnh (ch\u1eb3ng h\u1ea1n nh\u01b0 g\u00f3i ph\u1ea7n m\u1ec1m WordPress) l\u00ean th\u01b0 m\u1ee5c Web tr\u00ean VPS (th\u01b0\u1eddng l\u00e0 th\u01b0 m\u1ee5c c\u00f3 t\u00ean \u201cwww\u201d ho\u1eb7c \u201cpublic\u201d).\/var\/www\/html\/<\/code>Ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u01b0 m\u1ee5c t\u00f9y ch\u1ec9nh c\u1ee7a m\u00ecnh. Sau \u0111\u00f3, truy c\u1eadp \u0111\u1ecba ch\u1ec9 IP ho\u1eb7c t\u00ean mi\u1ec1n c\u1ee7a m\u00e1y ch\u1ee7 t\u1eeb tr\u00ecnh duy\u1ec7t, v\u00e0 l\u00e0m theo h\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t c\u1ee7a WordPress \u0111\u1ec3 k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 thi\u1ebft l\u1eadp trang web.<\/p>\n\n\n\n

K\u1ebft n\u1ed1i t\u00ean mi\u1ec1n v\u1edbi ch\u1ee9ng ch\u1ec9 SSL<\/h3>\n\n\n\n

\u4e3a\u4e86\u8ba9\u7528\u6237\u901a\u8fc7\u57df\u540d\u8bbf\u95ee\uff0c\u60a8\u9700\u8981\u5728\u57df\u540d\u6ce8\u518c\u5546\u5904\u5c06\u57df\u540d\u89e3\u6790\u5230\u60a8\u7684VPS\u7684IP\u5730\u5740\uff08\u6dfb\u52a0A\u8bb0\u5f55\uff09\u3002\u968f\u540e\uff0c\u5728Nginx\u914d\u7f6e\u4e2d\u6307\u5b9a\u60a8\u7684\u57df\u540d\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u4e3a\u7f51\u7ad9\u542f\u7528HTTPS\uff0c\u8fd9\u5df2\u662f\u73b0\u4ee3\u7f51\u7ad9\u7684\u6807\u914d\u3002\u60a8\u53ef\u4ee5\u514d\u8d39\u4eceLet\u2019s Encrypt\u83b7\u53d6SSL\u8bc1\u4e66\uff0c\u5e76\u901a\u8fc7Certbot\u5de5\u5177\u81ea\u52a8\u5b89\u88c5\u548c\u914d\u7f6e\uff1asudo apt install certbot python3-certbot-nginx && sudo certbot --nginx<\/code>Ch\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n theo h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1ee3c cung c\u1ea5p l\u00e0 \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

Best Practices for Daily Management and Maintenance<\/h2>\n\n\n\n

Vi\u1ec7c qu\u1ea3n l\u00fd m\u00e1y ch\u1ee7 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng vi\u1ec7c ch\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ea7n l\u00e0 xong; vi\u1ec7c b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3 l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e1y ch\u1ee7 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong th\u1eddi gian d\u00e0i.<\/p>\n\n\n\n

Gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng v\u00e0 xem nh\u1eadt k\u00fd<\/h3>\n\n\n\n

Vi\u1ec7c n\u1eafm r\u00f5 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ch\u1ee7 l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p \u0111\u1ec3 theo d\u00f5i v\u00e0 ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ch\u1ee7.htop<\/code>\u6216glances<\/code>C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y gi\u00fap theo d\u00f5i th\u1eddi gian th\u1ef1c t\u00ecnh tr\u1ea1ng CPU, b\u1ed9 nh\u1edb v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh \u0111ang ch\u1ea1y tr\u00ean h\u1ec7 th\u1ed1ng. H\u00e3y s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 n\u1eafm r\u00f5 hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.df -h<\/code>Ki\u1ec3m tra t\u00ecnh h\u00ecnh s\u1eed d\u1ee5ng kh\u00f4ng gian \u0111\u0129a. C\u00e1c b\u1ea3n ghi nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef t\u1ea1i\u2026\/var\/log\/<\/code>Trong th\u01b0 m\u1ee5c n\u00e0y, v\u00ed d\u1ee5 nh\u01b0\u2026\/var\/log\/syslog<\/code>\u6216\/var\/log\/auth.log<\/code>(Certification logs): Vi\u1ec7c ki\u1ec3m tra ch\u00fang \u0111\u1ecbnh k\u1ef3 gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c n\u1ed7 l\u1ef1c \u0111\u0103ng nh\u1eadp b\u1ea5t h\u1ee3p l\u1ec7.<\/p>\n\n\n\n

Chi\u1ebfn l\u01b0\u1ee3c sao l\u01b0u \u0111\u1ecbnh k\u1ef3<\/h3>\n\n\n\n

Kh\u00f4ng c\u00f3 \u0111i\u1ec1u g\u00ec \u0111au l\u00f2ng h\u01a1n vi\u1ec7c m\u1ea5t d\u1eef li\u1ec7u. Ch\u00fang ta c\u1ea7n thi\u1ebft l\u1eadp m\u1ed9t h\u1ec7 th\u1ed1ng sao l\u01b0u \u0111\u00e1ng tin c\u1eady. N\u1ed9i dung c\u1ea7n \u0111\u01b0\u1ee3c sao l\u01b0u bao g\u1ed3m: c\u00e1c t\u1ec7p tin tr\u00ean trang web, c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u00e1c t\u1ec7p c\u1ea5u h\u00ecnh quan tr\u1ecdng. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng\u2026cron<\/code>B\u1ea1n c\u00f3 th\u1ec3 l\u1eadp l\u1ecbch \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 t\u1ef1 \u0111\u1ed9ng, bao g\u1ed3m vi\u1ec7c vi\u1ebft c\u00e1c script \u0111\u1ec3 \u0111\u1ecbnh k\u1ef3 \u0111\u00f3ng g\u00f3i d\u1eef li\u1ec7u v\u00e0 truy\u1ec1n ch\u00fang \u0111\u1ebfn m\u1ed9t ngu\u1ed3n l\u01b0u tr\u1eef t\u1eeb xa kh\u00e1c (ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t m\u00e1y ch\u1ee7 VPS kh\u00e1c, d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u1ed1i t\u01b0\u1ee3ng, ho\u1eb7c m\u00e1y t\u00ednh c\u1ee5c b\u1ed9). Nhi\u1ec1u nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 VPS c\u0169ng cung c\u1ea5p d\u1ecbch v\u1ee5 sao l\u01b0u (snapshot) c\u00f3 t\u00ednh ph\u00ed, cho ph\u00e9p b\u1ea1n th\u1ef1c hi\u1ec7n vi\u1ec7c sa<\/p>\n\n\n\n

C\u1eadp nh\u1eadt g\u00f3i ph\u1ea7n m\u1ec1m v\u00e0 ki\u1ec3m to\u00e1n b\u1ea3o m\u1eadt<\/h3>\n\n\n\n

C\u1eadp nh\u1eadt \u0111\u1ecbnh k\u1ef3 c\u00e1c g\u00f3i ph\u1ea7n m\u1ec1m h\u1ec7 th\u1ed1ng l\u00e0 c\u00e1ch ch\u00ednh \u0111\u1ec3 kh\u1eafc ph\u1ee5c c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt. B\u1ea1n c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp \u0111\u1ec3 h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt b\u1ea3o m\u1eadt h\u00e0ng tu\u1ea7n:sudo apt install unattended-upgrades<\/code>V\u00e0 h\u00e3y th\u1ef1c hi\u1ec7n c\u1ea5u h\u00ecnh t\u01b0\u01a1ng \u1ee9ng. \u0110\u1ed3ng th\u1eddi, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p nh\u01b0\u2026lynis<\/code>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m to\u00e1n an ninh t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 qu\u00e9t h\u1ec7 th\u1ed1ng v\u1ec1 m\u1eb7t an ninh, v\u00e0 \u00e1p d\u1ee5ng c\u00e1c khuy\u1ebfn ngh\u1ecb c\u1ee7a ch\u00fang \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt.<\/p>\n\n\n\n

T\u00f3m l\u1ea1i<\/h2>\n\n\n\n

VPS (Virtual Private Server) l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p m\u00e1y ch\u1ee7 m\u1ea1nh m\u1ebd, linh ho\u1ea1t v\u00e0 c\u00f3 chi ph\u00ed h\u1ee3p l\u00fd d\u00e0nh cho ng\u01b0\u1eddi d\u00f9ng. T\u1eeb vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a VPS, \u0111\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn k\u1ebf ho\u1ea1ch d\u1ecbch v\u1ee5 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a m\u00ecnh, v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc b\u1ea3o m\u1eadt ban \u0111\u1ea7u c\u1ea7n thi\u1ebft, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u l\u00e0 n\u1ec1n t\u1ea3ng quan tr\u1ecdng \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn \u1ed5n \u0111\u1ecbnh. Ti\u1ebfp theo, b\u1eb1ng c\u00e1ch tri\u1ec3n khai c\u00e1c m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf nh\u01b0 LNMP, b\u1ea1n c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i nh\u1eefng ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt \u0111\u00f3 th\u00e0nh n\u0103ng l\u1ef1c th\u1ef1c s\u1ef1. Cu\u1ed1i c\u00f9ng, \u0111\u1eebng b\u1ecf qua c\u00e1c c\u00f4ng vi\u1ec7c b\u1ea3o tr\u00ec h\u00e0ng ng\u00e0y nh\u01b0 gi\u00e1m s\u00e1t, sao l\u01b0u d\u1eef li\u1ec7u v\u00e0 c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m \u2013 nh\u1eefng y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1ecbch v\u1ee5 ho\u1ea1t \u0111\u1ed9ng b\u1ec1n v\u1eefng trong th\u1eddi gian d\u00e0i. B\u1eb1ng c\u00e1ch n\u1eafm v\u1eefng nh\u1eefng k\u1ef9 n\u0103ng t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 th\u1ec3 t\u1ef1 tin qu\u1ea3n l\u00fd VPS c\u1ee7a m\u00ecnh v\u00e0 cung c\u1ea5p n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho m\u1ecdi d\u1ef1 \u00e1n tr\u00ean m\u1ea1ng.<\/p>\n\n\n\n

FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n

VPS (Virtual Private Server) m\u00e1y ch\u1ee7 ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng lo\u1ea1i ng\u01b0\u1eddi d\u00f9ng n\u00e0o?<\/h3>\n\n\n\n

VPS (Virtual Private Server) r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7 chia s\u1ebb, v\u00e0 c\u1ea7n nhi\u1ec1u quy\u1ec1n ki\u1ec3m so\u00e1t c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh c\u1ea5u h\u00ecnh h\u01a1n. \u0110i\u1ec1u n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n mu\u1ed1n x\u00e2y d\u1ef1ng blog c\u00e1 nh\u00e2n ho\u1eb7c trang web tr\u01b0ng b\u00e0y t\u00e1c ph\u1ea9m v\u1edbi hi\u1ec7u su\u1ea5t cao, c\u00e1c doanh nh\u00e2n v\u1eadn h\u00e0nh trang web th\u01b0\u01a1ng m\u1ea1i nh\u1ecf ho\u1eb7c trang web ch\u00ednh th\u1ee9c c\u1ee7a c\u00f4ng ty, c\u00e1c k\u1ef9 s\u01b0 c\u1ea7n m\u00f4i tr\u01b0\u1eddng ri\u00eang bi\u1ec7t \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c ph\u00e1t tri\u1ec3n v\u00e0 ki\u1ec3m th\u1eed ph\u1ea7n m\u1ec1m, c\u0169ng nh\u01b0 c\u00e1c sinh vi\u00ean v\u00e0 ng\u01b0\u1eddi \u0111am m\u00ea mu\u1ed1n h\u1ecdc c\u00e1ch qu\u1ea3n l\u00fd v\u00e0 v\u1eadn h\u00e0nh m\u00e1y ch\u1ee7 Linux. VPS cung c\u1ea5p m\u1ed9t m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng g\u1ea7n gi\u1ed1ng nh\u01b0 m\u00e1y ch\u1ee7 v\u1eadt l\u00fd (bare metal) cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng n\u00e2ng cao.<\/p>\n\n\n\n

Sau khi mua VPS, t\u00f4i c\u00f3 c\u1ea7n t\u1ef1 c\u00e0i \u0111\u1eb7t h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00f4ng?<\/h3>\n\n\n\n

H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 VPS chuy\u00ean nghi\u1ec7p \u0111\u1ec1u cung c\u1ea5p m\u1ed9t giao di\u1ec7n \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng l\u1ef1a ch\u1ecdn v\u00e0 c\u00e0i \u0111\u1eb7t h\u1ec7 \u0111i\u1ec1u h\u00e0nh khi mua d\u1ecbch v\u1ee5. B\u1ea1n ch\u1ec9 c\u1ea7n ch\u1ecdn m\u1ed9t h\u00ecnh \u1ea3nh h\u1ec7 \u0111i\u1ec1u h\u00e0nh t\u1eeb danh s\u00e1ch (ch\u1eb3ng h\u1ea1n nh\u01b0 Ubuntu 22.04 LTS, CentOS Stream, Debian, v.v.) l\u00e0 \u0111\u01b0\u1ee3c. H\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng c\u1ee7a nh\u00e0 cung c\u1ea5p s\u1ebd th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t v\u00e0 kh\u1edfi t\u1ea1o h\u1ec7 \u0111i\u1ec1u h\u00e0nh trong v\u00e0i ph\u00fat. Khi ho\u00e0n t\u1ea5t, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t m\u00e1y ch\u1ee7 VPS \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t s\u1eb5n c\u00e1c ph\u1ea7n m\u1ec1m c\u01a1 b\u1ea3n, ch\u1ec9 c\u1ea7n k\u1ebft n\u1ed1i qua SSH l\u00e0 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ngay, m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i t\u1ef1 c\u00e0i \u0111\u1eb7t t\u1eeb \u0111\u1ea7u.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 xem hi\u1ec7u n\u0103ng c\u1ee7a VPS c\u1ee7a t\u00f4i c\u00f3 \u0111\u1ee7 t\u1ed1t kh\u00f4ng?<\/h3>\n\n\n\n

C\u00e1ch tr\u1ef1c ti\u1ebfp nh\u1ea5t l\u00e0 th\u1ef1c hi\u1ec7n vi\u1ec7c gi\u00e1m s\u00e1t (monitoring) v\u00e0 ki\u1ec3m th\u1eed \u00e1p l\u1ef1c (stress testing). Trong qu\u00e1 tr\u00ecnh \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n \u0111ang ch\u1ea1y, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng.htop<\/code>\u3001vmstat<\/code>H\u00e3y s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 theo d\u00f5i xem t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng CPU v\u00e0 b\u1ed9 nh\u1edb c\u00f3 li\u00ean t\u1ee5c g\u1ea7n m\u1ee9c 100% hay kh\u00f4ng. N\u1ebfu CPU ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c t\u1ed1i \u0111a trong th\u1eddi gian d\u00e0i, ho\u1eb7c t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb qu\u00e1 cao d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u1ea3i th\u01b0\u1eddng xuy\u00ean s\u1eed d\u1ee5ng ph\u00e2n v\u00f9ng \u0111\u1ec7m (Swap), h\u00e3y xem x\u00e9t c\u00e1c bi\u1ec7n ph\u00e1p kh\u1eaffree -h<\/code>N\u1ebfu xem), \u0111i\u1ec1u \u0111\u00f3 cho th\u1ea5y c\u1ea7n n\u00e2ng c\u1ea5p c\u1ea5u h\u00ecnh. \u0110\u1ed3ng th\u1eddi, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ngiostat<\/code>H\u00e3y ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecdc\/ghi d\u1eef li\u1ec7u tr\u00ean \u1ed5 \u0111\u0129a (I\/O), c\u0169ng nh\u01b0 t\u1ed1c \u0111\u1ed9 truy c\u1eadp internet b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 \u0111o t\u1ed1c \u0111\u1ed9 trang web.ping<\/code>\/traceroute<\/code>L\u1ec7nh n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 tr\u1ec5 m\u1ea1ng v\u00e0 t\u1ef7 l\u1ec7 m\u1ea5t g\u00f3i d\u1eef li\u1ec7u.<\/p>\n\n\n\n

T\u1ea1i sao trang web c\u1ee7a t\u00f4i truy c\u1eadp ch\u1eadm?<\/h3>\n\n\n\n

T\u1ed1c \u0111\u1ed9 truy c\u1eadp trang web ch\u1eadm c\u00f3 th\u1ec3 do nhi\u1ec1u nguy\u00ean nh\u00e2n kh\u00e1c nhau g\u00e2y ra. Tr\u01b0\u1edbc h\u1ebft, h\u00e3y ki\u1ec3m tra xem c\u00e1c t\u00e0i nguy\u00ean c\u1ee7a ch\u00ednh m\u00e1y ch\u1ee7 (CPU, b\u1ed9 nh\u1edb, ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecdc\/ghi tr\u00ean \u0111\u0129a) c\u00f3 \u0111ang \u1edf m\u1ee9c b\u00e3o h\u00f2a hay kh\u00f4ng. Ti\u1ebfp theo, \u0111\u01b0\u1eddng truy\u1ec1n m\u1ea1ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng; \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 VPS qu\u1ed1c t\u1ebf, v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u00e1ch \u0111\u1ecbnh tuy\u1ebfn m\u1ea1ng c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn th\u1eddi gian truy c\u1eadp. Ngo\u00e0i ra, vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a ch\u00ednh trang web c\u0169ng r\u1ea5t c\u1ea7n thi\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u00ecnh \u1ea3nh ch\u01b0a \u0111\u01b0\u1ee3c n\u00e9n, m\u00e3 ngu\u1ed3n kh\u00f4ng s\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef \u0111\u1ec7m (cache), ho\u1eb7c c\u00e1c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u01b0a \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 \u0111o t\u1ed1c \u0111\u1ed9 tr\u1ef1c tuy\u1ebfn (nh\u01b0 GTmetrix, WebPageTest) \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c \u0111i\u1ec3m ngh\u1ebdn v\u1ec1 hi\u1ec7u su\u1ea5t trang web, v\u00e0 ki\u1ec3m tra xem c\u00e1c tham s\u1ed1 c\u1ea5u h\u00ecnh c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 Nginx\/PHP-FPM c\u00f3 h\u1ee3p l\u00fd hay kh\u00f4ng.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 vi\u1ec7c VPS b\u1ecb hacker x\u00e2m nh\u1eadp?<\/h3>\n\n\n\n

Ngo\u00e0i c\u00e1c bi\u1ec7n ph\u00e1p c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong b\u00e0i vi\u1ebft n\u00e0y nh\u01b0 v\u00f4 hi\u1ec7u h\u00f3a \u0111\u0103ng nh\u1eadp root, s\u1eed d\u1ee5ng kh\u00f3a SSH, c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda, b\u1ea1n c\u0169ng n\u00ean: 1. Lu\u00f4n c\u1eadp nh\u1eadt t\u1ea5t c\u1ea3 ph\u1ea7n m\u1ec1m (kh\u00f4ng ch\u1ec9 h\u1ec7 th\u1ed1ng, m\u00e0 c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng b\u1ea1n tri\u1ec3n khai, nh\u01b0 WordPress) l\u00ean phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t. 2. S\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh cho c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 \u1ee9ng d\u1ee5ng, v\u00e0 tr\u00e1nh s\u1eed d\u1ee5ng l\u1ea1i gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau. 3. Ch\u1ec9 m\u1edf c\u00e1c c\u1ed5ng v\u00e0 d\u1ecbch v\u1ee5 c\u1ea7n thi\u1ebft, v\u00ed d\u1ee5 n\u1ebfu kh\u00f4ng c\u1ea7n d\u1ecbch v\u1ee5 th\u01b0, th\u00ec \u0111\u1eebng ch\u1ea1y c\u1ed5ng SMTP. 4. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 Fail2ban \u0111\u1ec3 gi\u00e1m s\u00e1t nh\u1eadt k\u00fd, t\u1ef1 \u0111\u1ed9ng ch\u1eb7n \u0111\u1ecba ch\u1ec9 IP c\u00f3 nhi\u1ec1u l\u1ea7n \u0111\u0103ng nh\u1eadp th\u1ea5t b\u1ea1i. 5. Th\u01b0\u1eddng xuy\u00ean xem x\u00e9t c\u00e1c t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng v\u00e0 quy tr\u00ecnh tr\u00ean m\u00e1y ch\u1ee7, lo\u1ea1i b\u1ecf nh\u1eefng ph\u1ea7n kh\u00f4ng c\u1ea7n thi\u1ebft. Nh\u1eadn th\u1ee9c v\u1ec1 an ninh c\u1ed9ng v\u1edbi c\u1ea5u h\u00ecnh an ninh c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a vi\u1ec7c ph\u00f2ng th\u1ee7.<\/p>","protected":false},"excerpt":{"rendered":"

H\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ch\u1ee7 VPS, s\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n gi\u1eefa m\u00e1y ch\u1ee7 chia s\u1ebb v\u00e0 m\u00e1y ch\u1ee7 \u0111\u00e1m m\u00e2y, \u0111\u1ed3ng th\u1eddi gi\u1ea3i th\u00edch chi ti\u1ebft c\u00e1ch l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p VPS ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng. Ngo\u00e0i ra, h\u01b0\u1edbng d\u1eabn c\u0169ng cung c\u1ea5p c\u00e1c b\u01b0\u1edbc thi\u1ebft l\u1eadp ban \u0111\u1ea7u v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n nh\u01b0 c\u1eadp nh\u1eadt h\u1ec7 \u0111i\u1ec1u h\u00e0nh, t\u1ea1o t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng, v\u00f4 hi\u1ec7u h\u00f3a quy\u1ec1n \u0111\u0103ng nh\u1eadp root v\u00e0 c\u1ea5u h\u00ecnh kh\u00f3a SSH. \u0110\u00e2y l\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o h\u1eefu \u00edch cho ng\u01b0\u1eddi d\u00f9ng VPS t\u1eeb giai \u0111o\u1ea1n m\u1edbi b\u1eaft \u0111\u1ea7u \u0111\u1ebfn khi \u00e1p d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[3188,350,301,282,410],"knowledge_category":[275],"class_list":["post-12376855","knowledge_post","type-knowledge_post","status-publish","hentry","tag-vps","tag-server-management","tag-server-configuration","tag-web-hosting","tag-410","knowledge_category-vps-hosting"],"acf":{"site_seo_keywords":"VPS\u4e3b\u673a,VPS\u914d\u7f6e,VPS\u7ba1\u7406,VPS\u65b0\u624b\u5165\u95e8,VPS\u5b89\u5168\u8bbe\u7f6e,\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\u6307\u5357,\u5982\u4f55\u9009\u62e9VPS\u65b9\u6848"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12376855","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts"}],"about":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/types\/knowledge_post"}],"author":[{"embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":0,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12376855\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12376855"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12376855"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12376855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}