{"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\/cs\/blog\/zashhita-ot-ddos-atak\/zashhita-servera-ot-ddos-atak","title":{"rendered":"Ochrana serveru p\u0159ed DDoS \u00fatoky","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pokud m\u00e1 va\u0161e webov\u00e9 str\u00e1nky politick\u00fd charakter, p\u0159ij\u00edm\u00e1 platby p\u0159es internet, nebo pokud provozujete ziskov\u00fd podnik \u2013 DDoS \u00fatok<\/strong> m\u016f\u017ee nastat v ka\u017ed\u00e9m okam\u017eiku. Z angli\u010dtiny se zkratka DDoS p\u0159ekl\u00e1d\u00e1 jako \u201edistribuovan\u00fd \u00fatok na odm\u00edtnut\u00ed slu\u017eby\u201c. A ochrana webov\u00e9ho serveru p\u0159ed DDoS \u00fatoky<\/a> je nejd\u016fle\u017eit\u011bj\u0161\u00ed \u010d\u00e1st kvalitn\u00edho hostingu.<\/p>\n

Jednodu\u0161e \u0159e\u010deno, DDoS \u00fatok<\/strong> \u2013 to je p\u0159et\u00ed\u017een\u00ed serveru, aby nebyl schopen obsluhovat n\u00e1v\u0161t\u011bvn\u00edky. Hacke\u0159i ovl\u00e1dnou po\u010d\u00edta\u010dovou s\u00ed\u0165 a na c\u00edlov\u00fd server pos\u00edlaj\u00ed obrovsk\u00e9 mno\u017estv\u00ed pr\u00e1zdn\u00fdch po\u017eadavk\u016f. Velikost botnetu m\u016f\u017ee b\u00fdt od n\u011bkolika des\u00edtek a\u017e po n\u011bkolik stovek tis\u00edc po\u010d\u00edta\u010d\u016f. Server mus\u00ed odpov\u011bd\u011bt na v\u0161echny po\u017eadavky, nezvl\u00e1d\u00e1 z\u00e1t\u011b\u017e a selh\u00e1v\u00e1.<\/p>\n

\"\"<\/p>\n

Syst\u00e9my ochrany server\u016f p\u0159ed DDoS \u00fatoky<\/h2>\n

Se DDoS \u00fatoky<\/strong> lze bojovat hardwarov\u00fdmi prost\u0159edky. K serverov\u00e9mu vybaven\u00ed se p\u0159ipojuj\u00ed firewally, kter\u00e9 rozhoduj\u00ed, zda nechat provoz d\u00e1le. V jejich firmwaru jsou zaps\u00e1ny algoritmy, kter\u00e9 ur\u010duj\u00ed v\u011bt\u0161inu \u00fatok\u016f. Pokud v\u00fdkon \u00fatoku nep\u0159esahuje uveden\u00e9 certifikovan\u00e9 hodnoty, za\u0159\u00edzen\u00ed bude fungovat ve standardn\u00edm re\u017eimu. Nev\u00fdhodou je omezen\u00e1 \u0161\u00ed\u0159ka p\u00e1sma a obt\u00ed\u017enost p\u0159i p\u0159erozd\u011blov\u00e1n\u00ed provozu.<\/p>\n

Popul\u00e1rn\u011bj\u0161\u00ed p\u0159\u00edstup<\/strong> je vyu\u017eit\u00ed filtra\u010dn\u00ed s\u00edt\u011b. Proto\u017ee provoz generuje botnet, vyu\u017eit\u00ed mnoha po\u010d\u00edta\u010d\u016f v boji proti pr\u00e1zdn\u00e9mu provozu je nejsch\u016fdn\u011bj\u0161\u00ed \u0159e\u0161en\u00ed. S\u00ed\u0165 p\u0159ij\u00edm\u00e1 provoz na sebe, filtruje ho a na c\u00edlov\u00fd server se dost\u00e1v\u00e1 pouze ov\u011b\u0159en\u00fd a kvalitn\u00ed provoz od skute\u010dn\u00fdch u\u017eivatel\u016f. Hlavn\u00ed v\u00fdhodou tohoto p\u0159\u00edstupu je mo\u017enost flexibiln\u011b nastavovat ochranu. Pokro\u010dil\u00ed hacke\u0159i se ji\u017e nau\u010dili maskovat \u0161kodliv\u00fd provoz jako b\u011b\u017en\u00fd provoz n\u00e1v\u0161t\u011bvn\u00edk\u016f. Rozpoznat \u0161patn\u00fd provoz m\u016f\u017ee pouze zku\u0161en\u00fd odborn\u00edk na ochranu informac\u00ed.<\/p>\n

Aby se ochr\u00e1nili p\u0159ed takov\u00fdmi \u00fatoky, poskytovatel\u00e9 a hostingov\u00e9 spole\u010dnosti vytv\u00e1\u0159ej\u00ed s\u00edt\u011b, kter\u00e9 propou\u0161t\u00ed provoz a filtruj\u00ed ho. V krajn\u00edm p\u0159\u00edpad\u011b je mo\u017en\u00e9 p\u0159ipojen\u00ed k extern\u00edm \u010dist\u00edc\u00edm uzl\u016fm.<\/p>\n

Architektura s\u00edt\u011b se skl\u00e1d\u00e1 ze t\u0159\u00ed vrstev: sm\u011brov\u00e1n\u00ed, vrstvy zpracov\u00e1n\u00ed paket\u016f a aplika\u010dn\u00ed vrstvy. Na \u00farovni sm\u011brov\u00e1n\u00ed se rovnom\u011brn\u011b rozd\u011bluje tok mezi uzly s\u00edt\u011b d\u00edky vysoce v\u00fdkonn\u00fdm sm\u011brova\u010d\u016fm. Na \u00farovni zpracov\u00e1n\u00ed paket\u016f n\u011bkolik vz\u00e1jemn\u011b z\u00e1lohovan\u00fdch za\u0159\u00edzen\u00ed filtruje p\u0159\u00edchoz\u00ed provoz podle speci\u00e1ln\u00edch algoritm\u016f. Na \u00farovni aplikac\u00ed se prov\u00e1d\u00ed \u0161ifrov\u00e1n\u00ed, de\u0161ifrov\u00e1n\u00ed a zpracov\u00e1n\u00ed po\u017eadavk\u016f. V p\u0159\u00edpad\u011b pot\u0159eby si m\u016f\u017eete p\u0159e\u010d\u00edst zpr\u00e1vy o v\u00fdkonu a d\u00e9lce \u00fatok\u016f, jako\u017e i zpr\u00e1vy o vy\u010di\u0161t\u011bn\u00ed.<\/p>\n

Spole\u010dnost ProHoster zajist\u00ed ochranu Va\u0161\u00ed webov\u00e9 str\u00e1nky<\/a> p\u0159ed DDoS \u00fatoky o s\u00edle a\u017e 1,2 Tb\/s. Pro ka\u017ed\u00fd typ serveru se standardn\u011b vytv\u00e1\u0159\u00ed z\u00e1kladn\u00ed \u0161ablony ochrany p\u0159ed jednodu\u0161\u0161\u00edmi DDoS \u00fatoky.<\/em> Pro dotazy ohledn\u011b ochrany webov\u00e9ho serveru p\u0159ed DDoS \u00fatoky<\/a> n\u00e1m napi\u0161te na technickou podporu. Ne\u010dekejte, a\u017e v\u00e1\u0161 server sel\u017ee \u2013 chra\u0148te ho ji\u017e dnes!<\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0415\u0441\u043b\u0438 \u0412\u0430\u0448 \u0441\u0430\u0439\u0442 \u043d\u043e\u0441\u0438\u0442 \u043f\u043e\u043b\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440, \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u043f\u043b\u0430\u0442\u0435\u0436\u0438 \u0447\u0435\u0440\u0435\u0437 \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442 \u0438\u043b\u0438 \u0435\u0441\u043b\u0438 \u0412\u044b \u0432\u0435\u0434\u0451\u0442\u0435 \u043f\u0440\u0438\u0431\u044b\u043b\u044c\u043d\u044b\u0439 \u0431\u0438\u0437\u043d\u0435\u0441 \u2013 DDoS-\u0430\u0442\u0430\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u043e\u0438\u0437\u043e\u0439\u0442\u0438 \u0432 \u043b\u044e\u0431\u043e\u0439 \u043c\u043e\u043c\u0435\u043d\u0442. \u0421 \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u043e\u0433\u043e \u0430\u0431\u0431\u0440\u0435\u0432\u0438\u0430\u0442\u0443\u0440\u0443 DDoS \u043c\u043e\u0436\u043d\u043e \u043f\u0435\u0440\u0435\u0432\u0435\u0441\u0442\u0438 \u043a\u0430\u043a \u00ab\u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u0430\u044f \u0430\u0442\u0430\u043a\u0430 \u0434\u043b\u044f \u043e\u0442\u043a\u0430\u0437\u0430 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438\u00bb. \u0418 \u0437\u0430\u0449\u0438\u0442\u0430 Web-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043e\u0442 DDoS-\u0430\u0442\u0430\u043a \u2013 \u0441\u0430\u043c\u0430\u044f \u0432\u0430\u0436\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u044c \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0445\u043e\u0441\u0442\u0438\u043d\u0433\u0430. \u041f\u0440\u043e\u0441\u0442\u043e \u0433\u043e\u0432\u043e\u0440\u044f, DDoS-\u0430\u0442\u0430\u043a\u0430 \u2013 \u044d\u0442\u043e \u043f\u0435\u0440\u0435\u0433\u0440\u0443\u0437\u043a\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u0447\u0442\u043e\u0431 […]<\/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\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 Ochrana webov\u00e9ho serveru p\u0159ed DDoS \u00fatoky ochrann\u00fdm syst\u00e9mem server\u016f | ProHoster","description":"Pokud je va\u0161e webov\u00e1 str\u00e1nka politick\u00e9ho charakteru, p\u0159ij\u00edm\u00e1 platby p\u0159es internet nebo pokud podnik\u00e1te ziskov\u011b \u2013 DDoS \u00fatok m\u016f\u017ee nastat v ka\u017ed\u00e9m 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