Konstantin Ryabcev, az infrastrukt\u00fara adminisztr\u00e1tora a kernel.org-on, k\u00f6zz\u00e9tette a git.kernel.org szolg\u00e1ltat\u00e1s forgalmi elemz\u00e9s\u00e9nek eredm\u00e9nyeit, amely lehet\u0151v\u00e9 teszi a Linux kernel fejleszt\u00e9s\u00e9vel kapcsolatos git-t\u00e1rol\u00f3k tartalm\u00e1nak megtekint\u00e9s\u00e9t. A szolg\u00e1ltat\u00e1s naponta k\u00f6r\u00fclbel\u00fcl 6 milli\u00f3 lek\u00e9rdez\u00e9st dolgoz fel a commitokr\u00f3l, amelyekb\u0151l 66% robotokt\u00f3l sz\u00e1rmazik, akiket siker\u00fcl blokkolni az Anubis rendszer seg\u00edts\u00e9g\u00e9vel. A lek\u00e9rdez\u00e9sek 33%-a \u00e1tmegy az Anubis rendszeren, amely csak akkor enged\u00e9lyez bejegyz\u00e9st, miut\u00e1n a JavaScript nyelven megoldott\u00e1k egy \u00e9rt\u00e9k kisz\u00e1m\u00edt\u00e1s\u00e1t, amelynek a SHA-256 hash-a egy adott sz\u00e1m\u00fa vezet\u0151 null\u00e1t tartalmaz a kiszolg\u00e1l\u00f3 \u00e1ltal kiadott sztring mellett (ez a feladat CPU er\u0151forr\u00e1sait ig\u00e9nyli a megold\u00e1shoz, de nem ig\u00e9nyel er\u0151forr\u00e1st az ellen\u0151rz\u00e9shez). <\/p>\n
Pontosan meghat\u00e1rozni, hogy ezek k\u00f6z\u00fcl a 33%-b\u00f3l ki az ember \u00e9s ki a fejlett bot, lehetetlen, de a lek\u00e9rdez\u00e9sek jellege alapj\u00e1n arra a k\u00f6vetkeztet\u00e9sre jutottunk, hogy a legitim lek\u00e9rdez\u00e9sek ar\u00e1nya k\u00f6r\u00fclbel\u00fcl 2%, m\u00edg a t\u00f6bbi 98% scraper. A botok egyik jel\u00e9nek tekintik a v\u00e9letlenszer\u0171 r\u00e9gi \u00e1gakban tal\u00e1lhat\u00f3 r\u00e9gi commitok k\u00f6zvetlen lek\u00e9rdez\u00e9seit, amelyek val\u00f3sz\u00edn\u0171tlen, hogy emberek munk\u00e1j\u00e1hoz sz\u00fcks\u00e9gesek. A botok aktivit\u00e1sa hatalmas parazita terhel\u00e9st okoz szerverek<\/a> mivel ahelyett, hogy egyszer bet\u00f6lten\u00e9k az \u00f6sszes k\u00f3dot \u00e9s a commit-t\u00f6rt\u00e9netet a «git clone» m\u0171velettel, a botok milli\u00e1rdnyi lek\u00e9rdez\u00e9st k\u00fcldenek, k\u00fcl\u00f6nb\u00f6z\u0151 webes interf\u00e9szeken kereszt\u00fcl pr\u00f3b\u00e1lgatva minden lehets\u00e9ges megold\u00e1st, \u00e9s t\u00f6bbsz\u00f6r k\u00e9rve azonos adatokat k\u00fcl\u00f6nb\u00f6z\u0151 param\u00e9terekkel. <\/p>\n A botok blokkol\u00e1sa alapj\u00e1n IP-c\u00edmek<\/a> \u00e9s az auton\u00f3m rendszerek meglehet\u0151sen gyorsan le\u00e1lltak m\u0171k\u00f6dni, mivel a botok \u00e1tt\u00e9rtek arra, hogy lek\u00e9rdez\u00e9seket k\u00fcldjenek milli\u00f3k v\u00e9letlenszer\u0171 IP-c\u00edm\u00e9r\u0151l otthoni vagy mobil h\u00e1l\u00f3zatokb\u00f3l, amelyeket botnetaktivit\u00e1s vagy b\u00f6ng\u00e9sz\u0151-kieg\u00e9sz\u00edt\u0151kkel val\u00f3 monetiz\u00e1l\u00e1s eredm\u00e9nyek\u00e9nt szereztek. Minden c\u00edmr\u0151l csup\u00e1n 4-5 lek\u00e9rdez\u00e9st k\u00fcldenek, \u00edgy a t\u0171zfal szintj\u00e9n val\u00f3 blokkol\u00e1suk haszontalan. <\/p>\n Egy ideig seg\u00edtett a botok blokkol\u00e1s\u00e1ban az Anubis rendszer, de id\u0151vel a botok alkalmazkodtak az Anubis \u00e1ltal k\u00edn\u00e1lt sz\u00e1m\u00edt\u00e1sok elv\u00e9gz\u00e9s\u00e9re. Egyebek k\u00f6z\u00f6tt a botok megtanult\u00e1k megoldani az 5. szint\u0171 probl\u00e9m\u00e1t, \u00e9s a tov\u00e1bbi szinten val\u00f3 emelked\u00e9s probl\u00e9m\u00e1s, mivel m\u00e9g az \u00f6t\u00f6dik szint is t\u00f6bb m\u00e1sodpercnyi sz\u00e1m\u00edt\u00e1st ig\u00e9nyel, amely jelent\u0151sen zavarja a legitim felhaszn\u00e1l\u00f3kat. <\/p>\n Ennek eredm\u00e9nyek\u00e9ppen a kernel.org infrastrukt\u00far\u00e1j\u00e1nak a webes adatgy\u0171jt\u0151k k\u00e9relmeinek kiszolg\u00e1l\u00e1s\u00e1ra t\u00f6bb er\u0151forr\u00e1st kell ford\u00edtania, mint az \u00f6sszes t\u00f6bbi leg\u00e1lis m\u0171veletre, bele\u00e9rtve a «git clone» m\u0171veletet is. \u00d6t. szervereken<\/a>, a git.kernel.org-ot kiszolg\u00e1lva, b\u00e1rmikor 14-16 az el\u00e9rhet\u0151 90 CPU mag folyamatosan a git-commitek botok sz\u00e1m\u00e1ra t\u00f6rt\u00e9n\u0151 megjelen\u00edt\u00e9s\u00e9vel van elfoglalva. Az adminisztr\u00e1torok most pr\u00f3b\u00e1lj\u00e1k cs\u00f6kkenteni a terhel\u00e9st, letiltani n\u00e9h\u00e1ny er\u0151forr\u00e1s-ig\u00e9nyes m\u0171veletet, korl\u00e1tozni az anonim hozz\u00e1f\u00e9r\u00e9st \u00e9s cs\u00f6kkenteni a navig\u00e1l\u00e1sra el\u00e9rhet\u0151 linkek sz\u00e1m\u00e1t. \u041a\u043e\u043d\u0441\u0442\u0430\u043d\u0442\u0438\u043d \u0420\u044f\u0431\u0446\u0435\u0432, \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b kernel.org, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u0442\u0440\u0430\u0444\u0438\u043a\u0430 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 git.kernel.org, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 git-\u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0435\u0432 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u044f\u0434\u0440\u0430 Linux. \u0415\u0436\u0435\u0434\u043d\u0435\u0432\u043d\u043e \u0441\u0435\u0440\u0432\u0438\u0441 \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u043e\u043a\u043e\u043b\u043e 6 \u043c\u043b\u043d \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e \u043a\u043e\u043c\u043c\u0438\u0442\u0430\u0445, \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 66% \u043f\u0440\u0438\u0445\u043e\u0434\u044f\u0442\u0441\u044f \u043d\u0430 \u0431\u043e\u0442\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0434\u0430\u0451\u0442\u0441\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Anubis. 33% \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Anubis, \u0440\u0430\u0437\u0440\u0435\u0448\u0430\u044e\u0449\u0435\u0439 \u0432\u0445\u043e\u0434 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u0441\u043b\u0435 \u043f\u043e\u0434\u0431\u043e\u0440\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183180","post","type-post","status-publish","format-standard","hentry","category-news"],"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\n","aioseo_head_json":{"title":"\ud83e\udd47A git.kernel.org-ra ir\u00e1nyul\u00f3 k\u00e9relmek 98%-\u00e1t a botok gener\u00e1lj\u00e1k, \u00f3ri\u00e1si parazitikus terhel\u00e9st okozva | ProHoster","description":"Konstantin Ryabcev, a kernel.org infrastrukt\u00far\u00e1j\u00e1nak adminisztr\u00e1tora, k\u00f6zz\u00e9tette a git.kernel.org szolg\u00e1ltat\u00e1s forgalomelemz\u00e9s\u00e9nek eredm\u00e9nyeit, amely lehet\u0151v\u00e9 teszi a kern fejleszt\u00e9ssel 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Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"