{"id":41973,"date":"2017-09-13T00:00:00","date_gmt":"2017-09-12T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/zashhita-servera-ot-ddos-atak"},"modified":"2020-02-18T13:44:45","modified_gmt":"2020-02-18T10:44:45","slug":"zashhita-servera-ot-ddos-atak","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/zashhita-ot-ddos-atak\/zashhita-servera-ot-ddos-atak","title":{"rendered":"Ochrona serwera przed atakami DDoS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Je\u015bli twoja strona internetowa ma charakter polityczny, przyjmuje p\u0142atno\u015bci przez Internet lub je\u015bli prowadzisz dochodowy biznes \u2013 atak DDoS<\/strong> mo\u017ce si\u0119 zdarzy\u0107 w ka\u017cdej chwili. Z angielskiego skr\u00f3t DDoS mo\u017cna przet\u0142umaczy\u0107 jako \u201erozproszony atak na odmow\u0119 us\u0142ugi\u201d. I ochrona serwera WWW przed atakami DDoS<\/a> to najwa\u017cniejsza cz\u0119\u015b\u0107 dobrej jako\u015bci hostingu.<\/p>\n

M\u00f3wi\u0105c prosto, atak DDoS<\/strong> jest to przeci\u0105\u017cenie serwera, aby nie m\u00f3g\u0142 obs\u0142ugiwa\u0107 odwiedzaj\u0105cych. Hakerzy przejmuj\u0105 sie\u0107 komputerow\u0105 i wysy\u0142aj\u0105 na docelowy serwer ogromn\u0105 liczb\u0119 pustych \u017c\u0105da\u0144. Rozmiar botnetu mo\u017ce wynosi\u0107 od kilkudziesi\u0119ciu do kilkuset tysi\u0119cy komputer\u00f3w. Serwer musi odpowiedzie\u0107 na wszystkie \u017c\u0105dania, nie radzi sobie z obci\u0105\u017ceniem i pada.<\/p>\n

\"\"<\/p>\n

Systemy ochrony serwer\u00f3w przed atakami DDoS<\/h2>\n

Mo\u017cna walczy\u0107 z atakami DDoS<\/strong> metodami sprz\u0119towymi. W tym celu do sprz\u0119tu serwerowego pod\u0142\u0105cza si\u0119 zapory, kt\u00f3re decyduj\u0105, czy przepuszcza\u0107 ruch dalej. W ich oprogramowaniu zapisane s\u0105 algorytmy, kt\u00f3re identyfikuj\u0105 wi\u0119kszo\u015b\u0107 atak\u00f3w. Je\u015bli moc ataku nie przekracza zadanych w certyfikacji warto\u015bci, sprz\u0119t b\u0119dzie dzia\u0142a\u0142 w normalnym trybie. Niedob\u00f3r \u2013 ograniczona przepustowo\u015b\u0107 i trudno\u015bci w rozdzielaniu ruchu.<\/p>\n

Bardziej popularne podej\u015bcie<\/strong> to u\u017cycie sieci filtruj\u0105cej. Poniewa\u017c ruch generowany jest przez botnet, korzystanie z wielu komputer\u00f3w w walce z pustym ruchem to najoptymalniejsze rozwi\u0105zanie. Sie\u0107 przejmuje ruch na siebie, filtruje go, a do docelowego serwera dociera tylko zweryfikowany i wysokiej jako\u015bci ruch od rzeczywistych u\u017cytkownik\u00f3w. G\u0142\u00f3wna zaleta tego podej\u015bcia to mo\u017cliwo\u015b\u0107 elastycznego dostosowania ochrony. Zaawansowani hakerzy ju\u017c nauczyli si\u0119 maskowa\u0107 z\u0142o\u015bliwy ruch jako ruch zwyk\u0142ych odwiedzaj\u0105cych. Rozpozna\u0107 z\u0142y ruch mo\u017ce tylko do\u015bwiadczony specjalista ochrony informacji.<\/p>\n

Aby chroni\u0107 si\u0119 przed takimi atakami, dostawcy i firmy hostingowe tworz\u0105 sieci, kt\u00f3re przepuszczaj\u0105 przez siebie ruch i filtruj\u0105 go. W ostateczno\u015bci istnieje mo\u017cliwo\u015b\u0107 pod\u0142\u0105czenia do zewn\u0119trznych w\u0119z\u0142\u00f3w oczyszczania ruchu.<\/p>\n

Architektura sieci sk\u0142ada si\u0119 z trzech warstw: routingu, warstwy przetwarzania pakiet\u00f3w oraz warstwy aplikacji. Na poziomie routingu nast\u0119puje r\u00f3wnomierne roz\u0142o\u017cenie przep\u0142ywu mi\u0119dzy w\u0119z\u0142ami sieci dzi\u0119ki niezwykle wydajnym routerom. Na poziomie przetwarzania pakiet\u00f3w kilka wzajemnie rezerwowanych urz\u0105dze\u0144 filtruje przychodz\u0105cy ruch zgodnie ze specjalnymi algorytmami. Na poziomie aplikacji odbywa si\u0119 szyfrowanie, deszyfrowanie oraz przetwarzanie \u017c\u0105da\u0144. W razie potrzeby mo\u017cna zapozna\u0107 si\u0119 z raportami na temat mocy i czasu trwania atak\u00f3w, a tak\u017ce raportami na temat oczyszczania.<\/p>\n

Firma ProHoster zapewni ochron\u0119 Twojej strony internetowej<\/a> przed atakami DDoS o mocy do 1,2 Tb\/s. Dla ka\u017cdego typu serwera domy\u015blnie tworzone s\u0105 podstawowe szablony ochrony przed najprostszymi atakami DDoS.<\/em> W sprawie zapewnienia ochrony serwera webowego przed atakami DDoS<\/a> pisz do naszego wsparcia technicznego. Nie czekaj, a\u017c Tw\u00f3j serwer upadnie \u2013 chro\u0144 go ju\u017c dzisiaj!<\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":41974,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[698],"tags":[],"class_list":["post-41973","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zashhita-ot-ddos-atak"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\udd47 Ochrona serwera webowego przed atakami DDoS system\u00f3w ochrony serwer\u00f3w | ProHoster","description":"Je\u015bli Twoja strona ma charakter polityczny, przyjmuje p\u0142atno\u015bci przez Internet lub je\u015bli prowadzisz dochodowy biznes \u2013 atak DDoS mo\u017ce zdarzy\u0107 si\u0119 w ka\u017cdej 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