{"id":423,"date":"2022-07-15T20:27:24","date_gmt":"2022-07-15T20:27:24","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=423"},"modified":"2022-07-15T20:27:24","modified_gmt":"2022-07-15T20:27:24","slug":"vpn-101","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/mang-rieng-ao\/vpn-101\/","title":{"rendered":"M\u1ea1ng ri\u00eang \u1ea3o 101"},"content":{"rendered":"<p>M\u1ea1ng ri\u00eang \u1ea3o, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 VPN, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp internet v\u00e0 che gi\u1ea5u danh t\u00ednh k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a b\u1ea1n. L\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung n\u00e0y ng\u0103n ch\u1eb7n b\u00ean th\u1ee9 ba theo d\u00f5i h\u00e0nh vi tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n ho\u1eb7c l\u1ea5y d\u1eef li\u1ec7u c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n. <\/p>\n\n\n\n<p>B\u00e0i vi\u1ebft sau \u0111\u00e2y s\u1ebd \u0111i s\u00e2u v\u00e0o s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a VPN.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-a-vpn\">VPN l\u00e0 g\u00ec?<\/h2>\n\n\n<p>H\u00e3y ngh\u0129 v\u1ec1 M\u1ea1ng ri\u00eang \u1ea3o (VPN) nh\u01b0 v\u1ec7 s\u0129 c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n tr\u00ean internet. Ph\u1ea7n m\u1ec1m ti\u1ec7n d\u1ee5ng n\u00e0y gi\u00fap b\u1ea1n an to\u00e0n v\u00e0 ri\u00eang t\u01b0 khi l\u01b0\u1edbt web. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n an to\u00e0n b\u00ean trong m\u1ed9t \u0111\u01b0\u1eddng h\u1ea7m an to\u00e0n, \u1ea9n kh\u1ecfi nh\u1eefng con m\u1eaft t\u00f2 m\u00f2. \u0110\u1ec3 l\u00e0m t\u1ed1t h\u01a1n, n\u00f3 che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a b\u1ea1n, gi\u1eef b\u00ed m\u1eadt danh t\u00ednh tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n v\u00e0 cung c\u1ea5p c\u00e1c li\u00ean k\u1ebft an to\u00e0n \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m truy c\u1eadp Wi-Fi m\u1edf. VPN \u0111\u01b0\u1ee3c trang b\u1ecb m\u1ed9t s\u1ed1 c\u00f4ng ngh\u1ec7 kh\u00e1 th\u00fa v\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1eaft tay an to\u00e0n gi\u1eefa hai \u0111\u1ecba \u0111i\u1ec3m.<\/p>\n\n\n\n<p>Gi\u1ea3 s\u1eed b\u1ea1n \u0111ang ng\u1ed3i \u1edf nh\u00e0 v\u00e0 c\u1ea7n khai th\u00e1c t\u00e0i nguy\u00ean tr\u00ean m\u1ea1ng v\u0103n ph\u00f2ng c\u1ee7a m\u00ecnh \u2013 VPN c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n th\u1ef1c hi\u1ec7n \u0111i\u1ec1u \u0111\u00f3. Gi\u1ed1ng nh\u01b0 vi\u1ec7c t\u1ea1o ra m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn ri\u00eang t\u01b0, an to\u00e0n qua m\u1ea1ng internet r\u1ed9ng m\u1edf, ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi kh\u1ed5ng l\u1ed3. T\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n, \u0111\u01b0\u1eddng truy\u1ec1n an to\u00e0n n\u00e0y c\u00f3 th\u1ec3 cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 chuy\u00ean bi\u1ec7t \u0111\u1ec3 gi\u00fap h\u00e0nh tr\u00ecnh s\u1ed1 c\u1ee7a b\u1ea1n an to\u00e0n h\u01a1n.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-does-a-vpn-work\">VPN ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n<p>H\u00e3y h\u00ecnh dung VPN, hay M\u1ea1ng ri\u00eang \u1ea3o, nh\u01b0 m\u1ed9t \u0111\u01b0\u1eddng \u1ed1ng k\u1ef9 thu\u1eadt s\u1ed1 an to\u00e0n k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u1edbi m\u1ed9t m\u00e1y t\u00ednh kh\u00e1c \u1edf b\u1ea5t k\u1ef3 \u0111\u00e2u tr\u00ean th\u1ebf gi\u1edbi. T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n c\u1ea7n \u0111\u1ec3 thi\u1ebft l\u1eadp l\u00e0 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i internet v\u00e0 ph\u1ea7n m\u1ec1m VPN ph\u00f9 h\u1ee3p. B\u00ean trong \u0111\u01b0\u1eddng \u1ed1ng ho\u1eb7c &quot;\u0111\u01b0\u1eddng h\u1ea7m&quot; n\u00e0y, d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a th\u00e0nh m\u1ed9t m\u00e3 kh\u00f3 b\u1ebb kh\u00f3a, gi\u1eef cho d\u1eef li\u1ec7u an to\u00e0n v\u00e0 ri\u00eang t\u01b0 khi truy\u1ec1n qua internet. <\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"the-role-of-ip-addresses\">Vai tr\u00f2 c\u1ee7a \u0110\u1ecba ch\u1ec9 IP<\/h3>\n\n\n<p>Khi b\u1ea1n k\u1ebft n\u1ed1i v\u1edbi internet, thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c g\u00e1n m\u1ed9t m\u00e3 \u0111\u1ecbnh danh duy nh\u1ea5t \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ecba ch\u1ec9 IP. \u0110\u1ecba ch\u1ec9 n\u00e0y ti\u1ebft l\u1ed9 th\u00f4ng tin chi ti\u1ebft v\u1ec1 v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd v\u00e0 Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) c\u1ee7a b\u1ea1n. VPN thay th\u1ebf \u0111\u1ecba ch\u1ec9 IP c\u1ee7a b\u1ea1n b\u1eb1ng m\u1ed9t \u0111\u1ecba ch\u1ec9 t\u1eeb m\u00e1y ch\u1ee7 VPN, \u1ea9n v\u1ecb tr\u00ed th\u1ef1c v\u00e0 th\u00f4ng tin ISP c\u1ee7a b\u1ea1n.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"the-encryption-process\">Qu\u00e1 tr\u00ecnh m\u00e3 h\u00f3a<\/h3>\n\n\n<p>M\u00e3 h\u00f3a gi\u1ed1ng nh\u01b0 m\u1ed9t ng\u00f4n ng\u1eef b\u00ed m\u1eadt m\u00e0 ch\u1ec9 b\u1ea1n v\u00e0 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n hi\u1ec3u. N\u00f3 l\u1ea5y d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh m\u1ed9t \u0111\u1ecbnh d\u1ea1ng b\u00ed \u1ea9n tr\u00f4ng gi\u1ed1ng nh\u01b0 ti\u1ebfng l\u00f3ng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai kh\u00e1c. <br><\/p>\n\n\n\n<p>\u0110\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c ng\u00f4n ng\u1eef b\u00ed m\u1eadt n\u00e0y, b\u1ea1n c\u1ea7n m\u1ed9t kh\u00f3a \u0111\u1eb7c bi\u1ec7t \u2013 v\u00e0 n\u1ebfu kh\u00f4ng c\u00f3 n\u00f3, th\u00f4ng tin n\u00e0y v\u1eabn l\u00e0 b\u00ed m\u1eadt. Hi\u1ec7n nay, m\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 VPN th\u00f4ng minh c\u00f2n ti\u1ebfn xa h\u01a1n n\u1eefa v\u1edbi c\u00e1i g\u1ecdi l\u00e0 m\u00e3 h\u00f3a &#039;kh\u00f4ng truy c\u1eadp&#039;. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ngay c\u1ea3 c\u00e1c nh\u00e0 cung c\u1ea5p VPN c\u0169ng kh\u00f4ng n\u1eafm gi\u1eef kh\u00f3a \u0111\u1ec3 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n. Gi\u1ed1ng nh\u01b0 vi\u1ec7c b\u1ea1n \u0111\u1eb7t d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh v\u00e0o m\u1ed9t h\u1ed9p k\u00fd g\u1eedi an to\u00e0n m\u00e0 ch\u1ec9 b\u1ea1n m\u1edbi c\u00f3 th\u1ec3 m\u1edf.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"the-various-vpn-protocols\">C\u00e1c giao th\u1ee9c VPN kh\u00e1c nhau<\/h3>\n\n\n<p>Giao th\u1ee9c VPN x\u00e1c \u0111\u1ecbnh c\u00e1ch thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n k\u1ebft n\u1ed1i v\u1edbi internet. M\u1ed7i giao th\u1ee9c cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng v\u00e0 m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt kh\u00e1c nhau. <\/p>\n\n\n\n<p>Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 giao th\u1ee9c VPN ph\u1ed5 bi\u1ebfn nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PPTP <\/strong>(Giao th\u1ee9c \u0111\u01b0\u1eddng h\u1ea7m \u0111i\u1ec3m-\u0111i\u1ec3m): PPTP l\u00e0 giao th\u1ee9c VPN c\u0169 h\u01a1n, t\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i. Giao th\u1ee9c n\u00e0y d\u1ec5 thi\u1ebft l\u1eadp nh\u01b0ng thi\u1ebfu b\u1ea3o m\u1eadt.<\/li>\n\n\n\n<li><strong>L2TP\/IPsec<\/strong> (Giao th\u1ee9c \u0111\u01b0\u1eddng h\u1ea7m l\u1edbp 2 k\u1ebft h\u1ee3p v\u1edbi B\u1ea3o m\u1eadt giao th\u1ee9c Internet): Giao th\u1ee9c n\u00e0y an to\u00e0n h\u01a1n PPTP nh\u01b0ng c\u00f3 th\u1ec3 ch\u1eadm h\u01a1n v\u00e0 kh\u00f3 c\u1ea5u h\u00ecnh h\u01a1n.<\/li>\n\n\n\n<li><strong>SSTP <\/strong>(Giao th\u1ee9c \u0111\u01b0\u1eddng h\u1ea7m \u1ed5 c\u1eafm b\u1ea3o m\u1eadt): SSTP cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd v\u00e0 t\u1ed1c \u0111\u1ed9 c\u00f3 th\u1ec3 nhanh h\u01a1n L2TP\/IPsec, nh\u01b0ng giao th\u1ee9c n\u00e0y ch\u1ec9 kh\u1ea3 d\u1ee5ng tr\u00ean h\u1ec7 th\u1ed1ng Windows.<\/li>\n\n\n\n<li><strong>IKEv2\/IPSec <\/strong>(Internet Key Exchange Phi\u00ean b\u1ea3n 2, k\u1ebft h\u1ee3p v\u1edbi Internet Protocol Security<strong>)<\/strong>:IKEv2\/IPSec l\u00e0 giao th\u1ee9c m\u1edbi h\u01a1n, nhanh h\u01a1n, an to\u00e0n h\u01a1n v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng h\u01a1n, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 tr\u00ean h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/encryption-vpn-explained.jpg\" alt=\"VPN ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o\" class=\"wp-image-461\" srcset=\"https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/encryption-vpn-explained.jpg 960w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/encryption-vpn-explained-300x169.jpg 300w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/encryption-vpn-explained-768x432.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"vpn-technologies\">C\u00f4ng ngh\u1ec7 VPN<\/h2>\n\n\n<p>M\u1ed9t s\u1ed1 c\u00f4ng ngh\u1ec7 VPN \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i hi\u1ec7n nay:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u1edfVPN<\/strong>: M\u1ed9t c\u00f4ng ngh\u1ec7 VPN \u0111\u00e1ng tin c\u1eady v\u00e0 an to\u00e0n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh. OpenVPN l\u00e0 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho nh\u1eefng ng\u01b0\u1eddi t\u00ecm ki\u1ebfm m\u00e3 h\u00f3a m\u1ea1nh m\u1ebd. Tuy nhi\u00ean, n\u00f3 c\u00f3 th\u1ec3 thi\u1ebfu c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 t\u1ed1c \u0111\u1ed9 duy\u1ec7t nhanh h\u01a1n, c\u1ea7n thi\u1ebft cho c\u00e1c d\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn n\u1ed9i dung nh\u01b0 Netflix ho\u1eb7c Hulu Plus.<\/li>\n\n\n\n<li><strong>D\u00e2y B\u1ea3o V\u1ec7<\/strong>: Giao th\u1ee9c VPN m\u00e3 ngu\u1ed3n m\u1edf m\u1edbi h\u01a1n n\u00e0y cung c\u1ea5p t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n v\u00e0 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p m\u00e3 h\u00f3a hi\u1ec7n \u0111\u1ea1i. WireGuard ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi d\u00f9ng \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t d\u1ecbch v\u1ee5 nh\u1ecf g\u1ecdn nh\u01b0ng \u0111\u00e1ng tin c\u1eady.<\/li>\n\n\n\n<li><strong>PPTP<\/strong>: M\u1ed9t c\u00f4ng ngh\u1ec7 VPN c\u0169 h\u01a1n v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho \u0111\u1ebfn ng\u00e0y nay. M\u1eb7c d\u00f9 ch\u1ec9 h\u1ed7 tr\u1ee3 k\u1ebft n\u1ed1i quay s\u1ed1 v\u00e0 m\u00e3 h\u00f3a b\u1ecb x\u00e2m ph\u1ea1m, hi\u1ec7u su\u1ea5t nhanh c\u1ee7a n\u00f3 v\u1eabn \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u1ed5 bi\u1ebfn li\u00ean t\u1ee5c.<\/li>\n\n\n\n<li><strong>IKEv2<\/strong>: M\u1ed9t giao th\u1ee9c b\u1ea3o m\u1eadt cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ed1i \u0111e d\u1ecda m\u1ea1ng th\u00f4ng qua m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c d\u1eef li\u1ec7u. IKEv2 c\u00f3 l\u1ee3i th\u1ebf v\u1ec1 t\u1ed1c \u0111\u1ed9, nh\u01b0ng k\u1ebft n\u1ed1i c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 \u0111\u1ed9t ng\u1ed9t chuy\u1ec3n \u0111\u1ed5i m\u1ea1ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1 cho ng\u01b0\u1eddi d\u00f9ng c\u1ea7n \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt nhanh ch\u00f3ng khi \u0111ang di chuy\u1ec3n.<\/li>\n<\/ul>\n\n\n<h2>T\u1ea7m quan tr\u1ecdng c\u1ee7a Ch\u00ednh s\u00e1ch Kh\u00f4ng ghi nh\u1eadt k\u00fd<\/h2>\n<p>Ch\u00ednh s\u00e1ch kh\u00f4ng ghi nh\u1eadt k\u00fd l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 VPN gi\u00fap \u0111\u1ea3m b\u1ea3o quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n.<\/p>\n\n\n<p>VPN c\u00f3 ch\u00ednh s\u00e1ch kh\u00f4ng ghi nh\u1eadt k\u00fd s\u1ebd kh\u00f4ng theo d\u00f5i ho\u1ea1t \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn ho\u1eb7c \u0111\u1ecba ch\u1ec9 IP c\u1ee7a b\u1ea1n. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 nh\u00e0 cung c\u1ea5p VPN kh\u00f4ng l\u01b0u b\u1ea5t k\u1ef3 nh\u1eadt k\u00fd n\u00e0o ghi l\u1ea1i ho\u1ea1t \u0111\u1ed9ng internet c\u1ee7a b\u1ea1n.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"sitetosite-vpn\">VPN Site-to-Site<\/h2>\n\n\n<p>VPN site-to-site cung c\u1ea5p m\u1ed9t chi\u1ec1u h\u01b0\u1edbng k\u1ebft n\u1ed1i an to\u00e0n kh\u00e1c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/site-to-site-vpn-diagrame-2.jpg\" alt=\"site-to-site-vpn-s\u01a1 \u0111\u1ed3\" class=\"wp-image-455\" srcset=\"https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/site-to-site-vpn-diagrame-2.jpg 960w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/site-to-site-vpn-diagrame-2-300x169.jpg 300w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/site-to-site-vpn-diagrame-2-768x432.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<p>VPN site-to-site cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng c\u00f4ng ty t\u1eeb b\u1ea5t k\u1ef3 \u0111\u1ecba \u0111i\u1ec3m n\u00e0o qua Internet. T\u00ednh n\u0103ng n\u00e0y cho ph\u00e9p truy c\u1eadp v\u00e0o c\u00e1c t\u00e0i nguy\u00ean m\u1ea1ng quan tr\u1ecdng, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y ch\u1ee7 email ho\u1eb7c m\u00e1y ch\u1ee7 \u1ee9ng d\u1ee5ng ch\u1ecbu tr\u00e1ch nhi\u1ec7m qu\u1ea3n l\u00fd email ho\u1eb7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p><strong>L\u1ee3i \u00edch c\u1ee7a VPN Site-to-Site<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>:VPN c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng ho\u1eb7c thu h\u1eb9p quy m\u00f4 theo y\u00eau c\u1ea7u kinh doanh b\u1eb1ng c\u00e1ch th\u00eam ho\u1eb7c b\u1edbt m\u00e1y ch\u1ee7 VPN.<\/li>\n\n\n\n<li><strong>Hi\u1ec7u su\u1ea5t<\/strong>:VPN mang l\u1ea1i hi\u1ec7u su\u1ea5t cao v\u00ec m\u1ed7i trang web \u0111\u1ec1u \u0111\u01b0\u1ee3c trang b\u1ecb ph\u1ea7n c\u1ee9ng VPN chuy\u00ean d\u1ee5ng.<\/li>\n\n\n\n<li><strong>S\u1ef1 \u1ed5n \u0111\u1ecbnh<\/strong>:VPN cung c\u1ea5p \u0111\u1ed9 tin c\u1eady v\u00e0 \u1ed5n \u0111\u1ecbnh cao h\u01a1n, kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c v\u1ea5n \u0111\u1ec1 k\u1ebft n\u1ed1i internet.<\/li>\n\n\n\n<li><strong>B\u1ea3o v\u1ec7<\/strong>:VPN c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 b\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a d\u1eef li\u1ec7u tr\u01b0\u1edbc khi truy\u1ec1n qua m\u1ea1ng Internet m\u1edf.<\/li>\n<\/ul>\n\n\n\n<p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a VPN Site-to-Site<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb<\/strong>:Vi\u1ec7c gi\u00e1m s\u00e1t v\u00e0 ki\u1ec3m so\u00e1t vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u c\u00f3 th\u1ec3 tr\u1edf n\u00ean kh\u00f3 kh\u0103n do ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp c\u1ee7a t\u1eebng k\u1ebft n\u1ed1i VPN site-to-site, \u0111i\u1ec1u n\u00e0y v\u00f4 t\u00ecnh c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn ph\u00e2n c\u1ea5p d\u1eef li\u1ec7u v\u00e0 t\u0103ng \u0111\u1ed9 tr\u1ec5 m\u1ea1ng.<\/li>\n\n\n\n<li><strong>B\u1ea3o v\u1ec7<\/strong>:M\u1eb7c d\u00f9 VPN site-to-site c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 m\u1ed9t v\u1ecb tr\u00ed khi c\u1ea3 hai v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00f9ng m\u1ed9t m\u1ea1ng, vi\u1ec7c ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp v\u00e0 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u tr\u1edf n\u00ean kh\u00f3 kh\u0103n, c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111\u1ebfn b\u1ea3o m\u1eadt kh\u00f4ng t\u1ed1i \u01b0u ngay c\u1ea3 khi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a t\u1ea1i hai v\u1ecb tr\u00ed ri\u00eang bi\u1ec7t.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"types-of-vpns\">C\u00e1c lo\u1ea1i VPN<\/h2>\n\n\n<p>M\u1ed9t s\u1ed1 lo\u1ea1i v\u00e0 giao th\u1ee9c VPN \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u kh\u00e1c nhau. Ba lo\u1ea1i VPN ch\u00ednh l\u00e0 Remote-Access, Site-to-Site d\u1ef1a tr\u00ean Intranet v\u00e0 Site-to-Site d\u1ef1a tr\u00ean Extranet.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/Remote-Access-VPN-1.jpg\" alt=\"VPN truy c\u1eadp t\u1eeb xa\" class=\"wp-image-465\" srcset=\"https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/Remote-Access-VPN-1.jpg 960w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/Remote-Access-VPN-1-300x169.jpg 300w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/07\/Remote-Access-VPN-1-768x432.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n<h3 class=\"wp-block-heading\" id=\"intranetbased-sitetosite\">Site-to-Site d\u1ef1a tr\u00ean Intranet<\/h3>\n\n\n<p>VPN Site-to-Site d\u1ef1a tr\u00ean Intranet v\u1ec1 c\u01a1 b\u1ea3n h\u1ee3p nh\u1ea5t nhi\u1ec1u m\u1ea1ng c\u1ee5c b\u1ed9 th\u00e0nh m\u1ed9t mi\u1ec1n m\u1ea1ng l\u1edbn. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i b\u1edfi c\u00e1c doanh nghi\u1ec7p c\u00f3 nhi\u1ec1u chi nh\u00e1nh, cho ph\u00e9p h\u1ecd h\u1ee3p nh\u1ea5t c\u00e1c t\u00e0i nguy\u00ean t\u1eeb nhi\u1ec1u v\u1ecb tr\u00ed kh\u00e1c nhau m\u1ed9t c\u00e1ch an to\u00e0n nh\u01b0 th\u1ec3 h\u1ecd \u0111ang ho\u1ea1t \u0111\u1ed9ng t\u1eeb m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m v\u1eadt l\u00fd duy nh\u1ea5t. Lo\u1ea1i c\u1ea5u h\u00ecnh VPN n\u00e0y c\u0169ng c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c tri\u1ec3n khai WAN \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u1ea7n m\u1ec1m (SD-WAN), n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u00e0 qu\u1ea3n l\u00fd m\u1ea1ng.<\/p>\n\n\n\n<p>T\u1ea7m quan tr\u1ecdng c\u1ee7a VPN site-to-site tr\u1edf n\u00ean r\u00f5 r\u00e0ng khi m\u1ed7i \u0111\u1ecba \u0111i\u1ec3m s\u1edf h\u1eefu c\u00e1c quy tr\u00ecnh ho\u1eb7c t\u00e0i nguy\u00ean ri\u00eang bi\u1ec7t m\u00e0 to\u00e0n b\u1ed9 t\u1ed5 ch\u1ee9c c\u1ea7n truy c\u1eadp. V\u00ed d\u1ee5, v\u1edbi VPN Site-to-Site d\u1ef1a tr\u00ean Intranet \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp gi\u1eefa nhi\u1ec1u chi nh\u00e1nh c\u1ee7a c\u00f4ng ty, m\u1ed7i chi nh\u00e1nh c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o c\u00e1c b\u1ea3n thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt t\u00f9y ch\u1ec9nh cho kh\u00e1ch h\u00e0ng, b\u1ea5t k\u1ec3 v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<p>VPN site-to-site \u0111\u00e3 xu\u1ea5t hi\u1ec7n t\u1eeb l\u00e2u, th\u1eadm ch\u00ed c\u00f2n tr\u01b0\u1edbc c\u1ea3 khi c\u00f3 Internet hi\u1ec7n \u0111\u1ea1i, do k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang v\u1edbi ARPANET v\u00e0 s\u1ef1 ra \u0111\u1eddi c\u1ee7a giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn\/giao th\u1ee9c Internet (TCP\/IP).<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"remote-access-vpn\">VPN truy c\u1eadp t\u1eeb xa<\/h3>\n\n\n<p>VPN truy c\u1eadp t\u1eeb xa l\u00e0 m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt k\u1ebft n\u1ed1i gi\u1eefa hai m\u1ea1ng. Ng\u01b0\u1eddi d\u00f9ng l\u00e0m vi\u1ec7c t\u1ea1i nh\u00e0 c\u00f3 th\u1ec3 truy c\u1eadp an to\u00e0n v\u00e0o c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 d\u1eef li\u1ec7u c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u doanh nghi\u1ec7p, v\u1edbi t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 nh\u1eadn \u0111\u1ec1u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a.<\/p>\n\n\n\n<p>VPN cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng t\u1eeb xa truy c\u1eadp v\u00e0o m\u1ea1ng c\u1ee7a c\u00f4ng ty nh\u01b0 th\u1ec3 h\u1ecd \u0111ang c\u00f3 m\u1eb7t tr\u1ef1c ti\u1ebfp. D\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i m\u00e0 t\u1ed5 ch\u1ee9c kh\u00f4ng ph\u1ea3i lo l\u1eafng v\u1ec1 vi\u1ec7c d\u1eef li\u1ec7u b\u1ecb can thi\u1ec7p ho\u1eb7c ch\u1eb7n l\u1ea1i. Nh\u00e2n vi\u00ean l\u00e0m vi\u1ec7c t\u1eeb xa c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 t\u1ea1i b\u00e0n l\u00e0m vi\u1ec7c c\u1ee7a h\u1ecd th\u00f4ng qua VPN truy c\u1eadp t\u1eeb xa, t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c c\u1ee7a nh\u00e2n vi\u00ean t\u1ea1i v\u0103n ph\u00f2ng ch\u00ednh c\u00f3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"extranetbased-sitetosite\">Site-to-Site d\u1ef1a tr\u00ean Extranet<\/h3>\n\n\n<p>VPN Site-to-Site d\u1ef1a tr\u00ean Extranet \u0111\u01b0\u1ee3c c\u00e1c t\u1ed5 ch\u1ee9c s\u1eed d\u1ee5ng \u0111\u1ec3 chia s\u1ebb th\u00f4ng tin c\u1ee5 th\u1ec3 trong khi v\u1eabn b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0. M\u1ed7i th\u1ef1c th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi VPN Site-to-Site d\u1ef1a tr\u00ean Extranet v\u00e0 quy\u1ebft \u0111\u1ecbnh th\u00f4ng tin n\u00e0o s\u1ebd chia s\u1ebb v\u1edbi c\u00e1c doanh nghi\u1ec7p kh\u00e1c. H\u1ecd c\u00f3 th\u1ec3 c\u1ed9ng t\u00e1c m\u00e0 kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn quy\u1ec1n s\u1edf h\u1eefu tr\u00ed tu\u1ec7 c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<p>VPN Extranet th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i an to\u00e0n c\u00e1c \u0111\u1ed1i t\u00e1c kinh doanh \u0111\u1ec3 chia s\u1ebb d\u1eef li\u1ec7u v\u00e0 \u1ee9ng d\u1ee5ng, th\u01b0\u1eddng s\u1eed d\u1ee5ng internet l\u00e0m ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n t\u1ea3i. VPN Extranet y\u00eau c\u1ea7u ph\u1ea7n m\u1ec1m c\u1ed5ng VPN \u0111\u1eb7c bi\u1ec7t \u1edf c\u1ea3 hai \u0111\u1ea7u k\u1ebft n\u1ed1i \u0111\u1ec3 m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u gi\u1eefa hai trang web.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"using-vpn-for-unblocking-streaming-services\">S\u1eed d\u1ee5ng VPN \u0111\u1ec3 b\u1ecf ch\u1eb7n d\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn<\/h2>\n\n\n<p>Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 c\u1ea7n b\u1ecf qua c\u00e1c kh\u1ed1i VPN \u0111\u1ec3 c\u00f3 quy\u1ec1n truy c\u1eadp kh\u00f4ng h\u1ea1n ch\u1ebf v\u00e0o n\u1ed9i dung b\u1ecb h\u1ea1n ch\u1ebf theo \u0111\u1ecba l\u00fd. C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 tr\u00e1nh c\u00e1c kh\u1ed1i n\u00e0y, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 \u1ea9n ho\u1eb7c &quot;\u1ea9n&quot; \u0111\u1ec3 ng\u1ee5y trang l\u01b0u l\u01b0\u1ee3ng VPN th\u00e0nh l\u01b0u l\u01b0\u1ee3ng HTTPS th\u00f4ng th\u01b0\u1eddng. Ngo\u00e0i ra, th\u1eed m\u1ed9t m\u00e1y ch\u1ee7 VPN kh\u00e1c ho\u1eb7c thay \u0111\u1ed5i giao th\u1ee9c VPN c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng th\u00edch s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP d\u00e2n d\u1ee5ng h\u01a1n l\u00e0 \u0111\u1ecba ch\u1ec9 IP trung t\u00e2m d\u1eef li\u1ec7u \u0111\u1ec3 tr\u00e1nh b\u1ecb c\u00e1c d\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn \u0111\u00e1nh d\u1ea5u. Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p VPN \u0111\u00e1ng tin c\u1eady v\u1edbi c\u00e1c t\u00ednh n\u0103ng m\u1ea1nh m\u1ebd c\u00f3 kh\u1ea3 n\u0103ng v\u01b0\u1ee3t qua c\u00e1c r\u00e0o c\u1ea3n n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 c\u00f3 tr\u1ea3i nghi\u1ec7m ph\u00e1t tr\u1ef1c tuy\u1ebfn m\u01b0\u1ee3t m\u00e0.<\/p>\n\n\n\n<p>Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 VPN \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng b\u1ecf ch\u1eb7n c\u00e1c d\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ExpressVPN<\/strong>:\u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi m\u1ea1ng l\u01b0\u1edbi m\u00e1y ch\u1ee7 r\u1ed9ng kh\u1eafp t\u1ea1i 94 qu\u1ed1c gia, ExpressVPN c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua c\u00e1c h\u1ea1n ch\u1ebf v\u1ec1 \u0111\u1ecba l\u00fd tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng nh\u01b0 Netflix, BBC iPlayer v\u00e0 Hulu.<\/li>\n\n\n\n<li><strong>NordVPN<\/strong>:V\u1edbi m\u00e1y ch\u1ee7 t\u1ea1i 62 qu\u1ed1c gia, NordVPN c\u00f3 th\u1ec3 b\u1ecf ch\u1eb7n Netflix, BBC iPlayer, Hulu, v.v.<\/li>\n\n\n\n<li><strong>M\u1ea1ng ri\u00eang \u1ea3o CyberGhost<\/strong>: CyberGhost VPN, v\u1edbi m\u00e1y ch\u1ee7 t\u1ea1i 60 qu\u1ed1c gia, c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua c\u00e1c h\u1ea1n ch\u1ebf v\u1ec1 \u0111\u1ecba l\u00fd tr\u00ean Netflix, BBC iPlayer, Hulu, v.v.<\/li>\n\n\n\n<li><strong>VPN ri\u00eang t\u01b0<\/strong>: \u0110\u00e2y l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi kh\u00e1c \u0111\u1ec3 b\u1ecf ch\u1eb7n c\u00e1c d\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn. PrivateVPN c\u00f3 m\u1ea1ng l\u01b0\u1edbi m\u00e1y ch\u1ee7 t\u1ea1i 50 qu\u1ed1c gia v\u00e0 c\u00f3 th\u1ec3 b\u1ecf ch\u1eb7n nhi\u1ec1u n\u1ec1n t\u1ea3ng ph\u00e1t tr\u1ef1c tuy\u1ebfn kh\u00e1c nhau.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-use-a-vpn\">C\u00e1ch s\u1eed d\u1ee5ng VPN<\/h2>\n\n\n<p>S\u1eed d\u1ee5ng VPN l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u01a1n gi\u1ea3n, c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u1edf nh\u00e0 ho\u1eb7c khi \u0111ang di chuy\u1ec3n. Sau \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 thi\u1ebft l\u1eadp v\u00e0 s\u1eed d\u1ee5ng VPN tr\u00ean c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Ch\u1ecdn d\u1ecbch v\u1ee5 VPN<\/strong>:B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p t\u1ed1t c\u00f3 m\u1ea1ng l\u01b0\u1edbi m\u00e1y ch\u1ee7 r\u1ed9ng kh\u1eafp t\u1ea1i nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m, kh\u00f4ng c\u00f3 ch\u00ednh s\u00e1ch ghi nh\u1eadt k\u00fd v\u00e0 m\u00e3 h\u00f3a m\u1ea1nh m\u1ebd.<\/li>\n\n\n\n<li><strong>T\u1ea3i xu\u1ed1ng v\u00e0 c\u00e0i \u0111\u1eb7t \u1ee9ng d\u1ee5ng VPN<\/strong>: Sau khi ch\u1ecdn d\u1ecbch v\u1ee5, h\u00e3y t\u1ea3i xu\u1ed1ng v\u00e0 c\u00e0i \u0111\u1eb7t \u1ee9ng d\u1ee5ng VPN tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/li>\n\n\n\n<li><strong>\u0110\u0103ng nh\u1eadp v\u00e0 ch\u1ecdn v\u1ecb tr\u00ed m\u00e1y ch\u1ee7<\/strong>:M\u1edf \u1ee9ng d\u1ee5ng VPN v\u00e0 \u0111\u0103ng nh\u1eadp b\u1eb1ng th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a b\u1ea1n.<\/li>\n\n\n\n<li><strong>Ch\u1ecdn v\u1ecb tr\u00ed m\u00e1y ch\u1ee7 d\u1ef1a tr\u00ean nhu c\u1ea7u c\u1ee7a b\u1ea1n<\/strong>: V\u00ed d\u1ee5, n\u1ebfu b\u1ea1n mu\u1ed1n xem Netflix c\u1ee7a Hoa K\u1ef3, b\u1ea1n s\u1ebd k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 \u0111\u1eb7t t\u1ea1i Hoa K\u1ef3.<\/li>\n\n\n\n<li><strong>K\u1ebft n\u1ed1i t\u1edbi m\u00e1y ch\u1ee7<\/strong>: T\u00ecm t\u00f9y ch\u1ecdn k\u1ebft n\u1ed1i nhanh trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau th\u00edch c\u1ee7a b\u1ea1n. N\u1ebfu kh\u00f4ng c\u00f3, h\u00e3y nghi\u00ean c\u1ee9u m\u00e1y ch\u1ee7 t\u1ed1t nh\u1ea5t d\u1ef1a tr\u00ean l\u01b0u l\u01b0\u1ee3ng k\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y ho\u1eb7c c\u00f3 d\u00e2y c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u trong qu\u00e1 tr\u00ecnh k\u1ebft n\u1ed1i.<\/li>\n<\/ol>\n\n\n<h3 class=\"wp-block-heading\" id=\"vpn-configuration\">C\u1ea5u h\u00ecnh VPN<\/h3>\n\n\n<p>B\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp b\u1eb1ng t\u00e0i kho\u1ea3n c\u1ee7a m\u00ecnh khi t\u1ea3i xu\u1ed1ng \u1ee9ng d\u1ee5ng VPN. Tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng tr\u00ean c\u00e1c m\u1ea1ng c\u00f4ng c\u1ed9ng nh\u01b0 s\u00e2n bay ho\u1eb7c qu\u00e1n c\u00e0 ph\u00ea, h\u00e3y xem l\u1ea1i c\u00e0i \u0111\u1eb7t c\u1ee7a t\u1eebng ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi s\u1edf th\u00edch c\u1ee7a b\u1ea1n.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"configure-vpn-on-iphone-or-ipad\">C\u1ea5u h\u00ecnh VPN tr\u00ean iPhone ho\u1eb7c iPad<\/h4>\n\n\n<ol class=\"wp-block-list\">\n<li>T\u1ea3i xu\u1ed1ng v\u00e0 c\u00e0i \u0111\u1eb7t \u1ee9ng d\u1ee5ng VPN. Khi \u0111\u01b0\u1ee3c nh\u1eafc cho ph\u00e9p \u1ee9ng d\u1ee5ng truy c\u1eadp trong khi t\u1ea1o k\u1ebft n\u1ed1i m\u1edbi, h\u00e3y nh\u1ea5p v\u00e0o \u201c<strong>Cho ph\u00e9p<\/strong>\u201d \u0111\u1ec3 thi\u1ebft l\u1eadp t\u1ef1 \u0111\u1ed9ng.<\/li>\n\n\n\n<li>Sau khi VPN \u0111\u01b0\u1ee3c b\u1eadt, h\u00e3y \u0111i t\u1edbi \u201c<strong>C\u00e0i \u0111\u1eb7t<\/strong>\u201c.<\/li>\n\n\n\n<li>V\u00f4\u0303 nhe\u0323 &quot;<strong>T\u1ed5ng quan<\/strong>\u201c.<\/li>\n\n\n\n<li>Ch\u1ecdn \u1ee9ng d\u1ee5ng VPN.<\/li>\n\n\n\n<li>Chuy\u1ec3n \u0111\u1ed5i \u201c<strong>Tr\u1ea1ng th\u00e1i<\/strong>\u201d b\u1eadt l\u00ean.<\/li>\n<\/ol>\n\n\n<h4 class=\"wp-block-heading\" id=\"configure-vpn-on-android-devices\">C\u1ea5u h\u00ecnh VPN tr\u00ean thi\u1ebft b\u1ecb Android<\/h4>\n\n\n<p>Thi\u1ebft b\u1ecb Android l\u00e0 c\u00f4ng c\u1ee5 \u0111a n\u0103ng v\u00e0 vi\u1ec7c b\u1ea3o v\u1ec7 ho\u1ea1t \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110\u1ec3 k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb Android c\u1ee7a b\u1ea1n v\u1edbi VPN, h\u00e3y l\u00e0m theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>T\u1ea3i xu\u1ed1ng v\u00e0 c\u00e0i \u0111\u1eb7t \u1ee9ng d\u1ee5ng VPN t\u1eeb Google Play Store.<\/li>\n\n\n\n<li>\u0110\u0103ng nh\u1eadp.<\/li>\n\n\n\n<li>Ch\u1ecdn m\u00e1y ch\u1ee7.<\/li>\n\n\n\n<li>V\u00f4\u0303 nhe\u0323 &quot;<strong>K\u1ebft n\u1ed1i<\/strong>\u201c.<\/li>\n<\/ol>\n\n\n<h4 class=\"wp-block-heading\" id=\"configure-vpn-on-windows-pc\">C\u1ea5u h\u00ecnh VPN tr\u00ean PC Windows<\/h4>\n\n\n<p>\u0110\u1ec3 k\u1ebft n\u1ed1i PC c\u1ee7a b\u1ea1n v\u1edbi VPN, h\u00e3y l\u00e0m theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Nh\u1ea5p v\u00e0o logo Windows v\u00e0 \u0111i t\u1edbi \u201c<strong>C\u00e0i \u0111\u1eb7t<\/strong>\u201c.<\/li>\n\n\n\n<li>Ch\u1ecdn &quot;<strong>M\u1ea1ng &amp; Internet<\/strong>&quot;, sau \u0111\u00f3 &quot;<strong>M\u1ea1ng ri\u00eang \u1ea3o VPN<\/strong>\u201c.<\/li>\n\n\n\n<li>\u0110i\u1ec1n v\u00e0o c\u00e0i \u0111\u1eb7t k\u1ebft n\u1ed1i: Ch\u1ecdn \u201cTh\u00eam k\u1ebft n\u1ed1i VPN\u201d t\u1eeb danh s\u00e1ch th\u1ea3 xu\u1ed1ng v\u00e0 th\u00eam k\u1ebft n\u1ed1i VPN c\u1ee7a b\u1ea1n. \u0110i\u1ec1n ch\u00ednh x\u00e1c th\u00f4ng tin \u0111\u0103ng nh\u1eadp v\u00e0 nh\u1ea5p v\u00e0o \u201cL\u01b0u\u201d.<\/li>\n\n\n\n<li>Sau khi ch\u1ecdn k\u1ebft n\u1ed1i VPN t\u1eeb m\u00e0n h\u00ecnh C\u00e0i \u0111\u1eb7t VPN, h\u00e3y nh\u1ea5p v\u00e0o \u201cK\u1ebft n\u1ed1i\u201d.<\/li>\n<\/ol>\n\n\n<h4 class=\"wp-block-heading\" id=\"configure-a-vpn-on-mac\">C\u1ea5u h\u00ecnh VPN tr\u00ean m\u00e1y Mac<\/h4>\n\n\n<p>Ng\u01b0\u1eddi d\u00f9ng Mac c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft l\u1eadp t\u00edch h\u1ee3p \u0111\u1ec3 thi\u1ebft l\u1eadp VPN. Chu\u1ea9n b\u1ecb s\u1eb5n t\u1ea5t c\u1ea3 th\u00f4ng tin c\u1ea7n thi\u1ebft, bao g\u1ed3m lo\u1ea1i VPN (PPTP so v\u1edbi L2TP), \u0111\u1ecba ch\u1ec9\/t\u00ean m\u00e1y ch\u1ee7, t\u00ean ng\u01b0\u1eddi d\u00f9ng, m\u1eadt kh\u1ea9u v\u00e0 b\u00ed m\u1eadt \u0111\u01b0\u1ee3c chia s\u1ebb. Th\u00f4ng tin n\u00e0y l\u00e0 duy nh\u1ea5t \u0111\u1ed1i v\u1edbi m\u1ed7i nh\u00e0 cung c\u1ea5p m\u1ea1ng; b\u1ea1n n\u00ean l\u1ea5y th\u00f4ng tin t\u1eeb h\u1ecd tr\u01b0\u1edbc khi thi\u1ebft l\u1eadp.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Nh\u1ea5p v\u00e0o logo Apple, sau \u0111\u00f3 \u201c<strong>T\u00f9y ch\u1ecdn h\u1ec7 th\u1ed1ng<\/strong>\u201c.<\/li>\n\n\n\n<li>Nh\u1ea5p v\u00e0o \u201c<strong>M\u1ea1ng<\/strong>\u201c.<\/li>\n\n\n\n<li>Nh\u1ea5p v\u00e0o ph\u00edm D\u1ea5u c\u1ed9ng \u0111\u1ec3 t\u1ea1o m\u1ea1ng m\u1edbi.<\/li>\n\n\n\n<li>Nh\u1eadp \u0110\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 v\u00e0 T\u00ean t\u00e0i kho\u1ea3n, sau \u0111\u00f3 nh\u1ea5p v\u00e0o \u201cC\u00e0i \u0111\u1eb7t x\u00e1c th\u1ef1c\u201d.<\/li>\n\n\n\n<li>Nh\u1eadp M\u1eadt kh\u1ea9u, sau \u0111\u00f3 nh\u1eadp B\u00ed m\u1eadt \u0111\u01b0\u1ee3c chia s\u1ebb v\u00e0 nh\u1ea5p v\u00e0o \u201c<strong>\u0110\u01af\u1ee2C R\u1ed2I<\/strong>\u201c.<\/li>\n\n\n\n<li>Nh\u1ea5p v\u00e0o \u201c<strong>\u00c1p d\u1ee5ng<\/strong>\u201c, sau \u0111\u00f3 \u201cK\u1ebft n\u1ed1i\u201d.<\/li>\n<\/ol>\n\n\n<h2 class=\"wp-block-heading\" id=\"summary\">B\u1ea3n t\u00f3m t\u1eaft<\/h2>\n\n\n<p>VPN l\u00e0 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an ninh v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn. Ch\u00fang thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n, \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a gi\u1eefa thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u00e0 m\u00e1y ch\u1ee7 t\u1eeb xa, cho ph\u00e9p duy\u1ec7t web \u1ea9n danh v\u00e0 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u. B\u1eb1ng c\u00e1ch che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, VPN gi\u00fap b\u1ecf qua c\u00e1c h\u1ea1n ch\u1ebf v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd v\u00e0 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i s\u1ef1 gi\u00e1m s\u00e1t c\u1ee7a ch\u00ednh ph\u1ee7 v\u00e0 gi\u00e1m s\u00e1t kh\u00f4ng mong mu\u1ed1n. <br><\/p>\n\n\n\n<p>V\u00ec ch\u00fang t\u01b0\u01a1ng th\u00edch v\u1edbi \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng v\u00e0 m\u00e1y t\u00ednh x\u00e1ch tay, n\u00ean vi\u1ec7c \u0111\u00e1nh gi\u00e1 t\u1eebng VPN d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt, t\u1ed1c \u0111\u1ed9, v\u1ecb tr\u00ed m\u00e1y ch\u1ee7 v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt quy\u1ec1n ri\u00eang t\u01b0 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m t\u1ed1t nh\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":"<p>M\u1ea1ng ri\u00eang \u1ea3o, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 VPN, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp internet v\u00e0 che gi\u1ea5u danh t\u00ednh k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a b\u1ea1n. L\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung n\u00e0y\u2026 <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/vi\/mang-rieng-ao\/vpn-101\/\">Ti\u1ebfp t\u1ee5c \u0111\u1ecdc <span class=\"screen-reader-text\">M\u1ea1ng ri\u00eang \u1ea3o 101<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":647,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-423","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vpn","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is a VPN? | Security Briefing<\/title>\n<meta name=\"description\" content=\"Learn all about VPNs, the different types available, and how they can help keep your data safe and secure online.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/securitybriefing.net\/vi\/mang-rieng-ao\/vpn-101\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a VPN? 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