{"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\/ro\/blog\/zashhita-ot-ddos-atak\/zashhita-servera-ot-ddos-atak","title":{"rendered":"Protec\u021bia serverului \u00eempotriva atacurilor DDoS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dac\u0103 site-ul dumneavoastr\u0103 are un caracter politic, accept\u0103 pl\u0103\u021bi prin Internet sau dac\u0103 conduce\u021bi o afacere profitabil\u0103 - atac DDoS<\/strong> poate avea loc \u00een orice moment. Abrevierea DDoS se traduce din englez\u0103 ca \"atac distribuit de neacordare a serviciilor\". \u0218i protec\u021bia serverului web \u00eempotriva atacurilor DDoS<\/a> este cea mai important\u0103 parte a unui hosting de calitate.<\/p>\n

Spus simplu, atac DDoS<\/strong> este supra\u00eenc\u0103rcarea serverului, astfel \u00eenc\u00e2t acesta s\u0103 nu poat\u0103 deservi vizitatorii. Hackerii preiau o re\u021bea de computere \u0219i trimit c\u0103tre serverul \u021bint\u0103 un num\u0103r imens de cereri goale. Dimensiunea botnet-ului poate varia de la c\u00e2teva zeci la sute de mii de computere. Serverul este obligat s\u0103 r\u0103spund\u0103 la toate cererile, nu face fa\u021b\u0103 \u00eenc\u0103rc\u0103turii \u0219i cade.<\/p>\n

\"\"<\/p>\n

Sisteme de protec\u021bie a serverelor \u00eempotriva atacurilor DDoS<\/h2>\n

Se poate lupta \u00eempotriva atacurilor DDoS<\/strong> prin metode hardware. Pentru aceasta, la echipamentele serverului sunt conectate firewall-uri care decid dac\u0103 s\u0103 permit\u0103 traficul s\u0103 continue. \u00cen firmware-ul lor sunt programate algoritmi care identific\u0103 majoritatea atacurilor. Dac\u0103 puterea atacului nu dep\u0103\u0219e\u0219te valorile stabilite \u00een certificare, echipamentul va func\u021biona \u00een modul normal. Dezavantajul este l\u0103\u021bimea de band\u0103 limitat\u0103 \u0219i dificultatea \u00een redistribuirea traficului.<\/p>\n

O abordare mai popular\u0103<\/strong> este utilizarea unei re\u021bele de filtrare. Deoarece traficul este generat de botnet, utilizarea mai multor computere \u00een lupta \u00eempotriva traficului gol este cea mai optim\u0103 solu\u021bie. Re\u021beaua preia traficul, \u00eel filtreaz\u0103, iar la serverul \u021bint\u0103 ajunge doar traficul verificat \u0219i de calitate provenit de la utilizatori reali. Principalul avantaj al acestei abord\u0103ri este posibilitatea de a configura flexibil protec\u021bia. Hackerii avansa\u021bi au \u00eenv\u0103\u021bat deja s\u0103 mascheze traficul d\u0103un\u0103tor ca trafic obi\u0219nuit al vizitatorilor. Numai un specialist experimentat \u00een protec\u021bia informa\u021biilor va putea recunoa\u0219te traficul prost.<\/p>\n

Pentru a se proteja \u00eempotriva acestor atacuri, furnizorii \u0219i companiile de hosting creeaz\u0103 re\u021bele care trec traficul prin ele \u0219i \u00eel filtreaz\u0103. \u00cen caz extrem, este posibil\u0103 conectarea la noduri externe de cur\u0103\u021bare a traficului.<\/p>\n

Arhitectura re\u021belei const\u0103 din trei straturi: rutare, strat de procesare a pachetelor \u0219i strat de aplica\u021bie. La nivelul de rutare, fluxul este distribuit uniform \u00eentre nodurile re\u021belei datorit\u0103 routerelor de \u00eenalt\u0103 performan\u021b\u0103. La nivelul proces\u0103rii pachetelor, mai multe dispozitive redundant filtreaz\u0103 traficul de intrare conform unor algoritmi specializa\u021bi. La nivelul aplica\u021biilor, au loc criptarea, decriptarea \u0219i procesarea solicit\u0103rilor. Dac\u0103 este necesar, pot fi consultate rapoartele de capacitate \u0219i durat\u0103 a atacurilor, precum \u0219i rapoartele de cur\u0103\u021bare.<\/p>\n

Compania ProHoster va asigura protec\u021bia site-ului dumneavoastr\u0103<\/a> \u00eempotriva atacurilor DDoS cu o intensitate de p\u00e2n\u0103 la 1,2 Tb\/s. Pentru fiecare tip de server, se construiesc \u00een mod implicit \u0219abloane de baz\u0103 pentru a proteja \u00eempotriva celor mai simple atacuri DDoS.<\/em> Pentru \u00eentreb\u0103ri legate de protec\u021bia serverului web \u00eempotriva atacurilor DDoS<\/a> scrie\u021bi echipei noastre de asisten\u021b\u0103 tehnic\u0103. Nu a\u0219tepta\u021bi p\u00e2n\u0103 c\u00e2nd serverul dumneavoastr\u0103 va c\u0103dea \u2013 proteja\u021bi-l deja ast\u0103zi!<\/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 Protec\u021bia serverului web \u00eempotriva atacurilor DDoS | ProHoster","description":"Dac\u0103 site-ul dumneavoastr\u0103 are caracter politic, accept\u0103 pl\u0103\u021bi prin Internet sau dac\u0103 conduce\u021bi o afacere profitabil\u0103 \u2013 un atac DDoS poate avea loc \u00een orice 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