{"id":123874,"date":"2025-04-30T09:05:06","date_gmt":"2025-04-30T07:05:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/ispolzovanie-zip-bomby-dlya-borby-s-vredonosnymi-web-botami"},"modified":"2025-04-30T09:05:06","modified_gmt":"2025-04-30T07:05:06","slug":"ispolzovanie-zip-bomby-dlya-borby-s-vredonosnymi-web-botami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/ispolzovanie-zip-bomby-dlya-borby-s-vredonosnymi-web-botami","title":{"rendered":"Pou\u017eitie zip-bomby na boj proti \u0161kodliv\u00fdm webov\u00fdm botom","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V poslednom \u010dase v\u00fdrazne vzr\u00e1stla aktivita webov\u00fdch botov, ktor\u00ed indexuj\u00fa n\u00e1v\u0161tevnos\u0165. Okrem spr\u00e1vne funguj\u00facich botov sa roz\u0161\u00edrili aj «neist\u00e9» boty, ktor\u00e9 ignoruj\u00fa pravidl\u00e1 indexovania robots.txt, prich\u00e1dzaj\u00fa z desiatok tis\u00edc r\u00f4znych IP adries, pretvaruj\u00fa sa na leg\u00e1lnych pou\u017e\u00edvate\u013eov a nedodr\u017eiavaj\u00fa rozumn\u00fa politiku intenzity odosielania \u017eiadost\u00ed. Tieto boty vytv\u00e1raj\u00fa obrovsk\u00fd parazitick\u00fd n\u00e1klad na servery, naru\u0161uj\u00fa norm\u00e1lnu funk\u010dnos\u0165 syst\u00e9mov a ukradn\u00fa \u010das administr\u00e1torom. Aktivita tak\u00fdchto botov je mnoh\u00fdmi vn\u00edman\u00e1 ako \u0161kodliv\u00e9 konanie. <\/p>\n

Ako opatrenie na spomalenie \u010dinnosti tak\u00fdchto botov, ako aj botov, ktor\u00e9 skenuj\u00fa neopravite\u013en\u00e9 zranite\u013enosti v typick\u00fdch webov\u00fdch aplik\u00e1ci\u00e1ch, jeden z administr\u00e1torov navrhol met\u00f3du «zip-bomby». Podstatou met\u00f3dy je, \u017ee webov\u00e9mu botovi sa na odpove\u010f na \u017eiados\u0165 o str\u00e1nku posiela obsah, ktor\u00fd je efekt\u00edvne stla\u010den\u00fd met\u00f3dou «deflate», a jeho ve\u013ekos\u0165 po rozbalen\u00ed mnohon\u00e1sobne prevy\u0161uje ve\u013ekos\u0165 prenesen\u00fdch d\u00e1t. Napr\u00edklad pri pou\u017eit\u00ed met\u00f3dy «deflate» m\u00f4\u017ee obsah z \/dev\/zero, zabalen\u00fd do 10 MB, po rozbalen\u00ed vy\u017eadova\u0165 1 GB diskov\u00e9ho priestoru. Pri pou\u017eit\u00ed met\u00f3dy kompresie «brotli» sa podarilo dosiahnu\u0165 \u00farove\u0148, pri ktorej prenos 81 MB vedie k rozbaleniu 100 TB d\u00e1t. <\/p>\n

Aktivova\u0165 tak\u00fato ochranu je mo\u017en\u00e9 vytvoren\u00edm pasc\u00ed, ktor\u00e9 s\u00fa dostupn\u00e9 prostredn\u00edctvom nevidite\u013en\u00fdch odkazov, ozna\u010den\u00fdch zna\u010dkou ‘rel=»nofollow»‘, vyl\u00fa\u010den\u00fdch z index\u00e1cie prostredn\u00edctvom robots.txt a sp\u00fa\u0161\u0165aj\u00facich sa pri dostato\u010dne vysokej \u00farovni rekurzie pre boty sna\u017eiace sa predstiera\u0165 oby\u010dajn\u00fdch pou\u017e\u00edvate\u013eov. V praxi sa navrhnut\u00e1 met\u00f3da neodpor\u00fa\u010da, preto\u017ee m\u00f4\u017ee by\u0165 webov\u00e1 str\u00e1nka zaraden\u00e1 medzi \u0161kodliv\u00e9 str\u00e1nky spolo\u010dnosti Google a za\u010dne by\u0165 ozna\u010dovan\u00e1 ako \u0161kodliv\u00e1 v prehliada\u010di Chrome so zapnut\u00fdm re\u017eimom «Safe Browsing».
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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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