{"id":476315,"date":"2023-08-09T07:28:31","date_gmt":"2023-08-09T07:28:31","guid":{"rendered":""},"modified":"2023-09-05T11:12:27","modified_gmt":"2023-09-05T11:12:27","slug":"cold-boot","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/cold-boot\/","title":{"rendered":"Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i"},"content":{"rendered":"<p>Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kh\u1edfi \u0111\u1ed9ng c\u1ee9ng, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng m\u00e1y t\u00ednh t\u1eeb tr\u1ea1ng th\u00e1i t\u1eaft ngu\u1ed3n ho\u1eb7c tr\u1ea1ng th\u00e1i &quot;l\u1ea1nh&quot;. Thu\u1eadt ng\u1eef n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t c\u1ea1nh c\u1ee5m t\u1eeb \u201ckh\u1edfi \u0111\u1ed9ng \u1ea5m\u201d, c\u00f3 ngh\u0129a l\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh \u0111ang ch\u1ea1y.<\/p>\n<h2>S\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 nh\u1eefng \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 Cold Boot<\/h2>\n<p>Thu\u1eadt ng\u1eef \u201ckh\u1edfi \u0111\u1ed9ng ngu\u1ed9i\u201d b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a m\u00e1y t\u00ednh, khi c\u1ea7n kh\u1edfi \u0111\u1ed9ng m\u00e1y t\u00ednh t\u1eeb tr\u1ea1ng th\u00e1i ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 ngu\u1ed3n. \u0110\u00e2y l\u00e0 th\u1eddi k\u1ef3 c\u1ee7a m\u00e1y t\u00ednh l\u1edbn, ti\u1ec1n th\u00e2n c\u1ee7a c\u00e1c m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i. L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn &quot;kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i&quot; c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c s\u00e1ch h\u01b0\u1edbng d\u1eabn v\u00e0 h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng m\u00e1y t\u00ednh t\u1eeb nh\u1eefng n\u0103m 1950 v\u00e0 1960. Thu\u1eadt ng\u1eef n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n bi\u1ec7t n\u00f3 v\u1edbi &quot;kh\u1edfi \u0111\u1ed9ng \u1ea5m&quot;, t\u1ee9c l\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh trong khi n\u00f3 v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n.<\/p>\n<h2>T\u00ecm hi\u1ec3u s\u00e2u h\u01a1n: Kh\u00e1m ph\u00e1 s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a Cold Boot<\/h2>\n<p>Qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i b\u1eaft \u0111\u1ea7u khi b\u1eadt ngu\u1ed3n cho m\u1ed9t m\u00e1y t\u00ednh \u0111\u00e3 t\u1eaft ho\u00e0n to\u00e0n. Qu\u00e1 tr\u00ecnh b\u1eaft \u0111\u1ea7u v\u1edbi vi\u1ec7c ngu\u1ed3n \u0111i\u1ec7n cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n ban \u0111\u1ea7u, b\u1eaft \u0111\u1ea7u tr\u00ecnh t\u1ef1 kh\u1edfi \u0111\u1ed9ng. Thao t\u00e1c n\u00e0y s\u1ebd b\u1eaft \u0111\u1ea7u m\u1ed9t lo\u1ea1t quy tr\u00ecnh ki\u1ec3m tra ph\u1ea7n c\u1ee9ng, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 T\u1ef1 ki\u1ec3m tra khi b\u1eadt ngu\u1ed3n (POST). BIOS (H\u1ec7 th\u1ed1ng \u0111\u1ea7u ra \u0111\u1ea7u v\u00e0o c\u01a1 b\u1ea3n), l\u00e0 ph\u1ea7n s\u1ee5n \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean chip tr\u00ean bo m\u1ea1ch ch\u1ee7, gi\u00e1m s\u00e1t qu\u00e1 tr\u00ecnh n\u00e0y. N\u00f3 ki\u1ec3m tra c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi th\u1ee9 \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>N\u1ebfu POST th\u00e0nh c\u00f4ng, BIOS s\u1ebd \u0111\u1ecbnh v\u1ecb ph\u1ea7n m\u1ec1m b\u1ed9 t\u1ea3i kh\u1edfi \u0111\u1ed9ng tr\u00ean \u1ed5 l\u01b0u tr\u1eef, t\u1ea3i n\u00f3 v\u00e0o b\u1ed9 nh\u1edb c\u1ee7a m\u00e1y t\u00ednh v\u00e0 c\u1ea5p cho n\u00f3 quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n m\u00e1y t\u00ednh. Sau \u0111\u00f3, b\u1ed9 t\u1ea3i kh\u1edfi \u0111\u1ed9ng s\u1ebd t\u1ea3i h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0o b\u1ed9 nh\u1edb, b\u1ed9 nh\u1edb n\u00e0y s\u1ebd ti\u1ebfp qu\u1ea3n v\u00e0 ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng.<\/p>\n<h2>Ph\u00e1 v\u1ee1 qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/h2>\n<p>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a quy tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i bao g\u1ed3m m\u1ed9t lo\u1ea1t c\u00e1c b\u01b0\u1edbc:<\/p>\n<ol>\n<li>B\u1eadt ngu\u1ed3n: \u0110\u00e2y l\u00e0 giai \u0111o\u1ea1n \u0111\u1ea7u ti\u00ean n\u00fat ngu\u1ed3n c\u1ee7a m\u00e1y t\u00ednh \u0111\u01b0\u1ee3c nh\u1ea5n.<\/li>\n<li>T\u1ef1 ki\u1ec3m tra khi b\u1eadt ngu\u1ed3n (POST): BIOS ti\u1ebfn h\u00e0nh m\u1ed9t lo\u1ea1t ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c.<\/li>\n<li>Chuy\u1ec3n giao kh\u1edfi \u0111\u1ed9ng BIOS: BIOS x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng kh\u1edfi \u0111\u1ed9ng (nh\u01b0 \u1ed5 c\u1ee9ng ho\u1eb7c SSD) v\u00e0 chuy\u1ec3n qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng sang b\u1ed9 t\u1ea3i kh\u1edfi \u0111\u1ed9ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean thi\u1ebft b\u1ecb \u0111\u00f3.<\/li>\n<li>Ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 t\u1ea3i kh\u1edfi \u0111\u1ed9ng: B\u1ed9 t\u1ea3i kh\u1edfi \u0111\u1ed9ng \u0111\u1ecbnh v\u1ecb v\u00e0 t\u1ea3i h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0o b\u1ed9 nh\u1edb c\u1ee7a m\u00e1y t\u00ednh.<\/li>\n<li>Kh\u1edfi \u0111\u1ed9ng h\u1ec7 \u0111i\u1ec1u h\u00e0nh: H\u1ec7 \u0111i\u1ec1u h\u00e0nh ti\u1ebfp qu\u1ea3n, kh\u1edfi t\u1ea1o h\u1ec7 th\u1ed1ng c\u1ee7a n\u00f3 v\u00e0 chu\u1ea9n b\u1ecb cho s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ol>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i:<\/p>\n<ul>\n<li>N\u00f3 kh\u1edfi \u0111\u1ed9ng m\u00e1y t\u00ednh t\u1eeb tr\u1ea1ng th\u00e1i ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 ngu\u1ed3n.<\/li>\n<li>N\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c ki\u1ec3m tra ph\u1ea7n c\u1ee9ng to\u00e0n di\u1ec7n trong qu\u00e1 tr\u00ecnh POST.<\/li>\n<li>N\u00f3 kh\u1edfi t\u1ea1o t\u1ea5t c\u1ea3 ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m h\u1ec7 th\u1ed1ng t\u1eeb \u0111\u1ea7u.<\/li>\n<li>N\u00f3 cho ph\u00e9p kh\u1ea3 n\u0103ng truy c\u1eadp c\u00e1c c\u00e0i \u0111\u1eb7t BIOS.<\/li>\n<li>N\u00f3 x\u00f3a b\u1ed9 nh\u1edb kh\u1ea3 bi\u1ebfn (RAM), do \u0111\u00f3 lo\u1ea1i b\u1ecf m\u1ecdi d\u1eef li\u1ec7u c\u00f2n s\u00f3t l\u1ea1i kh\u1ecfi c\u00e1c ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc \u0111\u00f3.<\/li>\n<\/ul>\n<h2>Ph\u00e2n bi\u1ec7t c\u00e1c lo\u1ea1i Boot<\/h2>\n<p>Ch\u1ee7 y\u1ebfu c\u00f3 hai lo\u1ea1i quy tr\u00ecnh kh\u1edfi \u0111\u1ed9ng: Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i v\u00e0 Kh\u1edfi \u0111\u1ed9ng \u1ea5m.<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/th>\n<th>Gi\u00e0y gi\u1eef \u1ea5m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tr\u1ea1ng th\u00e1i b\u1eaft \u0111\u1ea7u<\/td>\n<td>Tr\u1ea1ng th\u00e1i kh\u00f4ng c\u00f3 ngu\u1ed3n<\/td>\n<td>Tr\u1ea1ng th\u00e1i \u0111\u00e3 ch\u1ea1y<\/td>\n<\/tr>\n<tr>\n<td>B\u01afU KI\u1ec6N<\/td>\n<td>Ti\u1ebfn h\u00e0nh<\/td>\n<td>\u0110\u00e3 b\u1ecf qua<\/td>\n<\/tr>\n<tr>\n<td>Thi\u1ebft l\u1eadp l\u1ea1i h\u1ec7 th\u1ed1ng<\/td>\n<td>To\u00e0n di\u1ec7n<\/td>\n<td>m\u1ed9t ph\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1eacP<\/td>\n<td>\u0110\u00e3 x\u00f3a<\/td>\n<td>Kh\u00f4ng thay \u0111\u1ed5i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>S\u1eed d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<\/h2>\n<p>Qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i l\u00e0 c\u00e1ch ti\u00eau chu\u1ea9n \u0111\u1ec3 kh\u1edfi \u0111\u1ed9ng m\u00e1y t\u00ednh. Tuy nhi\u00ean, n\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi h\u1ec7 th\u1ed1ng kh\u00f4ng ph\u1ea3n h\u1ed3i ho\u1eb7c khi c\u00f3 nh\u1eefng thay \u0111\u1ed5i quan tr\u1ecdng v\u1ec1 ph\u1ea7n c\u1ee9ng ho\u1eb7c ph\u1ea7n m\u1ec1m, y\u00eau c\u1ea7u kh\u1edfi t\u1ea1o to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<p>V\u1ec1 v\u1ea5n \u0111\u1ec1 tr\u1ee5c tr\u1eb7c, m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p l\u00e0 m\u00e1y t\u00ednh kh\u00f4ng kh\u1edfi \u0111\u1ed9ng \u0111\u01b0\u1ee3c c\u00f3 th\u1ec3 do l\u1ed7i ph\u1ea7n c\u1ee9ng ho\u1eb7c ph\u1ea7n m\u1ec1m. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, gi\u1ea3i ph\u00e1p th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay th\u1ebf ph\u1ea7n c\u1ee9ng ho\u1eb7c c\u00e0i \u0111\u1eb7t l\u1ea1i ph\u1ea7n m\u1ec1m.<\/p>\n<p>M\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1c li\u00ean quan \u0111\u1ebfn cu\u1ed9c t\u1ea5n c\u00f4ng kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i, m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p n\u00e2ng cao \u0111\u1ec3 tr\u00edch xu\u1ea5t kh\u00f3a m\u00e3 h\u00f3a t\u1eeb m\u00e1y t\u00ednh \u0111ang ch\u1ea1y b\u1eb1ng c\u00e1ch kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y m\u00e0 kh\u00f4ng cho ph\u00e9p x\u00f3a b\u1ed9 nh\u1edb.<\/p>\n<h2>Ph\u00e2n t\u00edch so s\u00e1nh v\u00e0 ph\u00e2n bi\u1ec7t<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh gi\u1eefa Cold Boot, Warm Boot v\u00e0 Hybrid Boot (m\u1ed9t t\u00ednh n\u0103ng trong Windows 8 tr\u1edf l\u00ean):<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/th>\n<th>Gi\u00e0y gi\u1eef \u1ea5m<\/th>\n<th>Kh\u1edfi \u0111\u1ed9ng lai<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tr\u1ea1ng th\u00e1i b\u1eaft \u0111\u1ea7u<\/td>\n<td>Tr\u1ea1ng th\u00e1i kh\u00f4ng c\u00f3 ngu\u1ed3n<\/td>\n<td>Tr\u1ea1ng th\u00e1i \u0111\u00e3 ch\u1ea1y<\/td>\n<td>Kh\u1edfi \u0111\u1ed9ng nhanh v\u1edbi ch\u1ebf \u0111\u1ed9 ng\u1ee7 \u0111\u00f4ng m\u1ed9t ph\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>B\u01afU KI\u1ec6N<\/td>\n<td>Ti\u1ebfn h\u00e0nh<\/td>\n<td>\u0110\u00e3 b\u1ecf qua<\/td>\n<td>\u0110\u00e3 b\u1ecf qua<\/td>\n<\/tr>\n<tr>\n<td>Thi\u1ebft l\u1eadp l\u1ea1i h\u1ec7 th\u1ed1ng<\/td>\n<td>To\u00e0n di\u1ec7n<\/td>\n<td>m\u1ed9t ph\u1ea7n<\/td>\n<td>m\u1ed9t ph\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1eacP<\/td>\n<td>\u0110\u00e3 x\u00f3a<\/td>\n<td>Kh\u00f4ng thay \u0111\u1ed5i<\/td>\n<td>Kh\u00f4ng thay \u0111\u1ed5i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>T\u01b0\u01a1ng lai c\u1ee7a qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn th\u1eddi gian kh\u1edfi \u0111\u1ed9ng nhanh h\u01a1n v\u00e0 h\u1ec7 th\u1ed1ng an to\u00e0n h\u01a1n. C\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 SSD v\u00e0 UEFI (Giao di\u1ec7n ph\u1ea7n m\u1ec1m m\u1edf r\u1ed9ng h\u1ee3p nh\u1ea5t) \u0111ang g\u00f3p ph\u1ea7n v\u00e0o nh\u1eefng ti\u1ebfn b\u1ed9 n\u00e0y, gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian kh\u1edfi \u0111\u1ed9ng. C\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt, nh\u01b0 kh\u1edfi \u0111\u1ed9ng an to\u00e0n v\u00e0 TPM (M\u00f4-\u0111un n\u1ec1n t\u1ea3ng \u0111\u00e1ng tin c\u1eady), \u0111ang \u0111\u01b0\u1ee3c tri\u1ec3n khai \u0111\u1ec3 ng\u0103n ch\u1eb7n truy c\u1eadp h\u1ec7 th\u1ed1ng tr\u00e1i ph\u00e9p.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy v\u00e0 kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i v\u00ec ch\u00fang l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng. Tuy nhi\u00ean, khi m\u00e1y t\u00ednh tr\u1ea3i qua qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i, c\u00e1c c\u00e0i \u0111\u1eb7t m\u1ea1ng (bao g\u1ed3m c\u1ea3 c\u00e0i \u0111\u1eb7t c\u1ee7a m\u00e1y ch\u1ee7 proxy n\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng) s\u1ebd \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o v\u00e0 t\u1ea3i trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng. N\u1ebfu m\u1ed9t h\u1ec7 th\u1ed1ng d\u1ef1a v\u00e0o proxy \u0111\u1ec3 truy c\u1eadp m\u1ea1ng th\u00ec b\u1ea5t k\u1ef3 thay \u0111\u1ed5i quan tr\u1ecdng n\u00e0o trong c\u1ea5u h\u00ecnh m\u1ea1ng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ec1u c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.computerhope.com\/jargon\/c\/coldboot.htm\" target=\"_new\" rel=\"noopener nofollow\">Hy v\u1ecdng m\u00e1y t\u00ednh: Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/a><\/li>\n<li><a href=\"https:\/\/www.techopedia.com\/definition\/3851\/cold-booting\" target=\"_new\" rel=\"noopener nofollow\">Techopedia: Kh\u1edfi \u0111\u1ed9ng ngu\u1ed9i<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Booting\" target=\"_new\" rel=\"noopener nofollow\">Wikipedia: Kh\u1edfi \u0111\u1ed9ng<\/a><\/li>\n<\/ul>","protected":false},"featured_media":467902,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476315","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>An Extensive Examination of Cold Boot<\/mark>","faq_items":[{"question":"What is a cold boot?","answer":"<p>A cold boot, also known as a hard boot, refers to the process of starting a computer from a powered-off, or \"cold,\" state. It involves a series of checks and initializations performed by the computer's BIOS and boot loader.<\/p>"},{"question":"What is the origin of the term cold boot?","answer":"<p>The term \"cold boot\" originated during the early days of computing, when mainframe computers were prevalent. The term was used to differentiate it from the \"warm boot,\" which was a restart of the computer while it was still powered.<\/p>"},{"question":"What is the process involved in a cold boot?","answer":"<p>A cold boot process involves the initial power-on, a series of hardware checks conducted by the BIOS known as the Power-On Self Test (POST), locating and loading the boot loader software by the BIOS, and finally, the loading and initializing of the operating system.<\/p>"},{"question":"What are the key features of a cold boot?","answer":"<p>The key features of a cold boot include starting the computer from a completely unpowered state, a comprehensive hardware check during the POST, initializing all system hardware and software from scratch, accessing BIOS settings, and clearing out the volatile memory (RAM).<\/p>"},{"question":"How does a cold boot compare to a warm boot?","answer":"<p>A cold boot starts the computer from a completely unpowered state and involves a comprehensive system reset, while a warm boot restarts a computer that's already running and only involves a partial system reset.<\/p>"},{"question":"What problems might arise during a cold boot and how can they be solved?","answer":"<p>Common problems during a cold boot can include a computer failing to start due to hardware or software failures, which usually require hardware replacement or software reinstallation. Another issue is a cold boot attack, where encryption keys are extracted from a running computer by rebooting it without allowing the memory to clear.<\/p>"},{"question":"How does the future look for booting processes?","answer":"<p>The future of booting processes involves faster boot times and more secure systems. This is thanks to technologies like SSDs and UEFI, which significantly reduce boot times, and security measures like secure boot and TPM to prevent unauthorized system access.<\/p>"},{"question":"How is a cold boot related to proxy servers?","answer":"<p>While proxy servers aren't directly related to the cold boot process, network settings (including those of a proxy server) are initialized and loaded during the boot process. If a system relies on a proxy for network access, any significant changes in the system's network configuration may necessitate a cold boot.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476315\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/467902"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}