{"id":74853,"date":"2020-03-21T08:42:40","date_gmt":"2020-03-21T05:42:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra"},"modified":"2020-03-21T08:42:40","modified_gmt":"2020-03-21T05:42:40","slug":"linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/linux-kernel-5-6-chto-zhdat-v-novoj-versii-yadra","title":{"rendered":"Linux kernel 5.6 \u2014 mit v\u00e1rhatunk az \u00faj kernelt\u0151l","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Linux kernel 5.6 kiad\u00e1sa m\u00e1rcius v\u00e9g\u00e9re v\u00e1rhat\u00f3. A mai anyagunkban a k\u00f6zelg\u0151 v\u00e1ltoz\u00e1sokat t\u00e1rgyaljuk \u2014 \u00faj f\u00e1jlrendszer, WireGuard protokoll \u00e9s illeszt\u0151program-friss\u00edt\u00e9sek.<\/p>\n

\"Linux<\/a><\/noindex><\/a><\/noindex>
\nFot\u00f3 \u2014 lucas huffman<\/a><\/noindex> \u2014 Unsplash<\/i><\/p>\n

A r\u00e9g\u00f3ta v\u00e1rt VPN-protokoll<\/h2>\n

\nDavid Miller, a Linux h\u00e1l\u00f3zati alrendszer\u00e9nek felel\u0151se \u00fagy d\u00f6nt\u00f6tt, belefoglalja<\/a><\/noindex> a WireGuard kernelbe. Ez egy VPN-alag\u00fat, amelyet az Edge Security kiberbiztons\u00e1gi c\u00e9g fejlesztett ki. Az \u00f6tlet a lkml-en. A fejleszt\u0151k v\u00e9lem\u00e9nye szerint a jav\u00edt\u00e1s egyszer\u0171en nem \u00e9ri meg a f\u00e1radoz\u00e1st.<\/a><\/noindex> m\u00e1r k\u00e9t \u00e9ve, akkor \u0151t t\u00e1mogatta<\/a><\/noindex> maga Linus Torvalds \u2014 azonban a megval\u00f3s\u00edt\u00e1st elhalasztott\u00e1k. A projekt er\u0151sen k\u00f6thet\u0151 volt az Edge Security kriptogr\u00e1fiai funkci\u00f3ihoz. De f\u00e9l \u00e9vvel ezel\u0151tt az \u00faj protokoll szerz\u0151i kompromisszumot k\u00f6t\u00f6ttek \u00e9s \u00e1t\u00e1lltak<\/a><\/noindex> a Kernel Crypto API \u00e1ltal t\u00e1mogatott funkci\u00f3kra.<\/p>\n

Van v\u00e9lem\u00e9ny<\/a><\/noindex>, \u00edgy a WireGuard a j\u00f6v\u0151ben felv\u00e1lthatja az OpenVPN-t. A tesztek szerint az \u00faj protokoll s\u00e1vsz\u00e9less\u00e9ge n\u00e9gyszer magasabb, mint az OpenVPN-\u00e9: 1011 Mbit\/s a 258 Mbit\/s-hoz k\u00e9pest. De itt meg kell jegyezni, hogy a Kernel Crypto API-ra val\u00f3 \u00e1tt\u00e9r\u00e9s rontja a teljes\u00edtm\u00e9nyt.<\/a><\/noindex>A WireGuard egyik m\u00e1sik jellemz\u0151je \u2014<\/p><\/blockquote>\n

\nhogy nem bontja meg a kapcsolatot , m\u00e9g akkor sem, ha a felhaszn\u00e1l\u00f3 \u00faj IP-c\u00edmet kap, \u00e9s \u00f6n\u00e1ll\u00f3an kezeli az \u00fatv\u00e1laszt\u00e1si k\u00e9rd\u00e9seket. Ehhez minden h\u00e1l\u00f3zati interf\u00e9szhez hozz\u00e1rendelnek egy titkos kulcsot. Ez a<\/a><\/noindex>Diffie-Hellman protokoll . Maga a titkos\u00edt\u00e1s<\/a><\/noindex>a ChaCha20-on \u00e9s a Poly1305 algoritmuson<\/a><\/noindex> alapul. Ezeket a AES-256-CTR \u00e9s<\/a><\/noindex>HMAC jav\u00edtott anal\u00f3gj\u00e1nak tekintik.<\/a><\/noindex>.<\/p>\n

\u00daj f\u00e1jlrendszer<\/h2>\n

\nEz a rendszer lett<\/a><\/noindex> a Zonefs, amelyet a Western Digital m\u00e9rn\u00f6kei mutattak be. Z\u00f3n\u00e1zott t\u00e1rol\u00f3eszk\u00f6z\u00f6kkel val\u00f3 munk\u00e1ra k\u00e9sz\u00fclt (zoned storage<\/a><\/noindex>). Ezek blokkt\u00e1rol\u00f3k, amelyek c\u00edmz\u00e9si ter\u00fclete z\u00f3n\u00e1kra van felosztva (p\u00e9ld\u00e1ul NVMe SSD). A f\u00e1jlrendszer lehet\u0151v\u00e9 teszi, hogy minden z\u00f3n\u00e1t f\u00e1jlk\u00e9nt kezeljenek \u2014 azaz speci\u00e1lis API-kat haszn\u00e1ljanak az ioctl<\/a><\/noindex> helyett a t\u00e1rol\u00f3rendszerek el\u00e9r\u00e9s\u00e9hez. Hasonl\u00f3 megk\u00f6zel\u00edt\u00e9st alkalmaznak a RocksDB \u00e9s LevelDB adatb\u00e1zisokban. Ez lehet\u0151v\u00e9 teszi a f\u00e1jlokkal val\u00f3 munk\u00e1ra eredetileg optimaliz\u00e1lt k\u00f3d \u00e1tvitel\u00e9nek k\u00f6lts\u00e9geinek cs\u00f6kkent\u00e9s\u00e9t.<\/p>\n

A Linuxban m\u00e1r l\u00e9tezik funkci\u00f3 a blokkeszk\u00f6z\u00f6kkel val\u00f3 interakci\u00f3hoz. A 4.13-as verzi\u00f3j\u00fa kernelben \u00e9s elindult a projekt\u00fcnk;<\/a><\/noindex> a dm-zoned modul tal\u00e1lhat\u00f3. Ez z\u00f3n\u00e1zott t\u00e1rol\u00f3t mutat be, mint egy hagyom\u00e1nyos blokkeszk\u00f6zt, \u00e9s a Zonefs alternat\u00edv\u00e1ja lesz.<\/p>\n

\"Linux
\nFot\u00f3 \u2014 Suzan Kir\u0161i\u0107<\/a><\/noindex> \u2014 Unsplash<\/i><\/p>\n

A \u00faj f\u00e1jlrendszer bevezet\u00e9se mellett a Linux kernel fejleszt\u0151i a megl\u00e9v\u0151 rendszerekbe is m\u00f3dos\u00edt\u00e1sokat hajtottak v\u00e9gre. \u00daj hozz\u00e1adva<\/a><\/noindex> t\u00f6m\u00f6r\u00edt\u00e9si mechanizmusok LZO<\/a><\/noindex>\/LZ4<\/a><\/noindex> az F2FS eset\u00e9ben a t\u00e1mogat\u00e1s egyel\u0151re k\u00eds\u00e9rleti marad. K\u00e9zzel kell aktiv\u00e1lni a part\u00edci\u00f3 csatol\u00e1sakor (opci\u00f3 compress_algorithm<\/i>). Ezen k\u00edv\u00fcl friss\u00edt\u00e9s megkapja<\/a><\/noindex> EXT4 \u2014 ez k\u00f6zvetlen input\/output m\u0171veletekkel \u00f6sszef\u00fcgg. A friss\u00edt\u00e9si csomagot Riteth Harjan, az IBM m\u00e9rn\u00f6ke mutatta be. Szavai szerint bizonyos esetekben a jav\u00edt\u00e1s ak\u00e1r 140%-kal is n\u00f6velheti a f\u00e1jlrendszer teljes\u00edtm\u00e9ny\u00e9t.<\/a><\/noindex>Meghajt\u00f3friss\u00edt\u00e9sek<\/p>\n

\u00daj meghajt\u00f3 jelenik meg a kernelben<\/h2>\n

\ncpuidle_cooling . Feladata<\/i>\u2014 a CPU\/SoC h\u0171t\u00e9se, \u00e1thidalva az inakt\u00edv ciklusokat munka k\u00f6zben. Valamilyen szinten hasonl\u00edt az Intel processzorok PowerClamp meghajt\u00f3j\u00e1hoz, de nem k\u00f6thet\u0151 egy meghat\u00e1rozott architekt\u00far\u00e1hoz. A rendszert a Linaro szakemberei fejlesztik, akik ny\u00edlt forr\u00e1sk\u00f3d\u00fa szoftver optimaliz\u00e1l\u00e1s\u00e1val foglalkoznak ARM platformokra.<\/a><\/noindex> lesz hozz\u00e1adva kiadt\u00e1k<\/a><\/noindex> a GeForce 20 (TU10x) sorozat\u00fa grafikus k\u00e1rty\u00e1k t\u00e1mogat\u00e1sa. A megfelel\u0151 meghajt\u00f3t Ben Skeggs, a Nouveau projekt munkat\u00e1rsa k\u00e9sz\u00edtette el. Sajnos a GeForce 16 (TU11x) egyel\u0151re \"k\u00edv\u00fcl marad\". Az Nvidia nem biztos\u00edtott firmware k\u00e9peket a k\u00e1rtya inicializ\u00e1l\u00e1s\u00e1hoz. Ezen k\u00edv\u00fcl az \u00faj grafikus k\u00e1rty\u00e1k Linux alatt teljes\u00edtm\u00e9nyprobl\u00e9m\u00e1kkal k\u00fczdhetnek az automatikus \u00f3rajelek hi\u00e1nya miatt. A m\u00faltban meg\u00e1llap\u00edtott\u00e1k, hogy a Nouveau meghajt\u00f3k<\/p>\n

Ezenk\u00edv\u00fcl ak\u00e1r 20\u201330%-kal lassabban m\u0171k\u00f6dhetnek<\/a><\/noindex> mint az eredetik. Andrew Abbate<\/a><\/noindex> A leg\u00fajabb kernel<\/p>\n

\"Linux
\nFot\u00f3 \u2014 t\u00e1mogatni fogja<\/a><\/noindex> \u2014 Unsplash<\/i><\/p>\n

az USB4-et. A megfelel\u0151 m\u00f3dos\u00edt\u00e1sokat az Intel m\u00e9rn\u00f6kei v\u00e9gezt\u00e9k. Megv\u00e1ltoztatt\u00e1k a Thunderbolttal kapcsolatos megl\u00e9v\u0151 k\u00f3dalapot, amely k\u00f6r\u00fclbel\u00fcl k\u00e9tezer sor.<\/a><\/noindex> Term\u00e9szetesen ez nem minden friss\u00edt\u00e9s, ami a kernelbe \u00e9rkezik \u2014 p\u00e9ld\u00e1ul k\u00e9rt\u00e9k<\/a><\/noindex> az extra perif\u00e9ri\u00e1k \u00e9s h\u00e1l\u00f3zati eszk\u00f6z\u00f6k t\u00e1mogat\u00e1sa is v\u00e1rhat\u00f3. Emellett a 5.6-os kernel lesz az els\u0151 32-bites kernel, ahol<\/p>\n

megold\u00f3dik a 2038-as probl\u00e9ma.<\/a><\/noindex> Janu\u00e1r v\u00e9g\u00e9n a m\u00e9rn\u00f6k\u00f6k elk\u00e9sz\u00edtett\u00e9k<\/a><\/noindex> az utols\u00f3 m\u00f3dos\u00edt\u00e1sokat az nfsd, xfs, alsa \u00e9s v4l2 sz\u00e1m\u00e1ra. Rem\u00e9lik, hogy a k\u00f6vetkez\u0151 tizennyolc \u00e9vben a felhaszn\u00e1l\u00f3k \u00e9s a disztrib\u00faci\u00f3k fejleszt\u0151i \u00e1t tudnak t\u00e9rni a 5.6-os kernelre (vagy annak k\u00e9s\u0151bbi verzi\u00f3ira).<\/a><\/noindex>A t\u00e9m\u00e1val kapcsolatos anyagok a 1cloud.ru v\u00e1llalati blogj\u00e1b\u00f3l: A szupersz\u00e1m\u00edt\u00f3g\u00e9pek t\u00f6bbs\u00e9ge Linuxon fut \u2014 besz\u00e9lj\u00fck meg a helyzetet.<\/a><\/noindex> Hogyan biztos\u00edthatjuk a Linux rendszert: 10 tipp<\/p>\n

Mir\u0151l \u00edrunk a Habr\u00e1n:<\/b><\/p>\n

\"Linux Elemzz\u00fck a szem\u00e9lyes adatok \u00e9s a kiberv\u00e9delem v\u00e9delm\u00e9t \u2014 mire \u00e9rdemes figyelni.<\/a><\/noindex>
\n\"Linux Elemz\u00fcnk a szem\u00e9lyes adatok \u00e9s az I.B. v\u00e9delm\u00e9re vonatkoz\u00f3 aj\u00e1nl\u00e1sokat \u2014 mire \u00e9rdemes figyelni<\/a><\/noindex><\/p>\n

A szem\u00e9lyes adatok \u00e9s az inform\u00e1ci\u00f3biztons\u00e1g \u2014 mire \u00e9rdemes figyelni<\/b><\/p>\n

\"Linux Aj\u00e1nl\u00e1sok elemz\u00e9se a szem\u00e9lyes adatok \u00e9s inform\u00e1ci\u00f3biztons\u00e1g v\u00e9delm\u00e9ben<\/a><\/noindex>
\n\"Linux El\u0151sz\u00f6r teleport\u00e1ltak fotont egyik chipr\u0151l a m\u00e1sikra<\/a><\/noindex>
\n\"Linux Hogyan seg\u00edt az IT-szektor a vil\u00e1gnak kevesebb \u00e9telt kidobni<\/a><\/noindex><\/p><\/blockquote>\n

Forr\u00e1s: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412\u044b\u0445\u043e\u0434 Linux kernel 5.6 \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043d\u0430 \u043a\u043e\u043d\u0435\u0446 \u043c\u0430\u0440\u0442\u0430. \u0412 \u043d\u0430\u0448\u0435\u043c \u0441\u0435\u0433\u043e\u0434\u043d\u044f\u0448\u043d\u0435\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u043e\u0431\u0441\u0443\u0436\u0434\u0430\u0435\u043c \u0433\u0440\u044f\u0434\u0443\u0449\u0438\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u2014 \u043d\u043e\u0432\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b WireGuard \u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432. \u0424\u043e\u0442\u043e \u2014 lucas huffman \u2014 Unsplash \u0414\u043e\u043b\u0433\u043e\u0436\u0434\u0430\u043d\u043d\u044b\u0439 VPN-\u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b \u0414\u044d\u0432\u0438\u0434 \u041c\u0438\u043b\u043b\u0435\u0440 (David Miller), \u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0437\u0430 \u0441\u0435\u0442\u0435\u0432\u0443\u044e \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 Linux, \u0440\u0435\u0448\u0438\u043b \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 WireGuard. \u042d\u0442\u043e \u2014 VPN-\u0442\u0443\u043d\u043d\u0435\u043b\u044c, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0439 \u0432 \u0418\u0411-\u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Edge Security. […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":74854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-74853","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Linux kernel 5.6 \u2014 mit v\u00e1rhatunk az \u00faj kernel verzi\u00f3t\u00f3l | ProHoster","description":"A Linux kernel 5.6 megjelen\u00e9se m\u00e1rcius v\u00e9g\u00e9re 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