{"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\/it\/blog\/zashhita-ot-ddos-atak\/zashhita-servera-ot-ddos-atak","title":{"rendered":"Protezione del server dagli attacchi DDoS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se il tuo sito ha un carattere politico, accetta pagamenti tramite Internet o se gestisci un'attivit\u00e0 redditizia \u2013 <strong>Attacco DDoS<\/strong> pu\u00f2 verificarsi in qualsiasi momento. L'abbreviazione DDoS pu\u00f2 essere tradotta dall'inglese come \"attacco distribuito per negare il servizio\". E <a rel=\"nofollow\" href=\"\/it\/zhashchita-ot-ddos\/\">la protezione del server web dagli attacchi DDoS<\/a> \u00e8 la parte pi\u00f9 importante di un hosting di qualit\u00e0.<\/p>\n<p>In parole semplici, <strong>Attacco DDoS<\/strong> \u00e8 un sovraccarico del server, affinch\u00e8 non possa servire i visitatori. Gli hacker infiltrano una rete di computer e inviano al server target un'enorme quantit\u00e0 di richieste vuote. La dimensione del botnet pu\u00f2 variare da alcune decine a centinaia di migliaia di computer. Il server \u00e8 costretto a rispondere a tutte le richieste, non riesce a gestire il carico e va in crash.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5179\" src=\"https:\/\/prohoster.info\/wp-content\/uploads\/2017\/09\/zashchita-servera-ot-ddos-atak.png\" alt=\"\" width=\"706\" height=\"424\" \/><\/p>\n<h2>Sistemi di protezione dei server dagli attacchi DDoS<\/h2>\n<p><strong>Affrontare gli attacchi DDoS<\/strong> pu\u00f2 essere fatto con metodi hardware. A questo scopo, ai dispositivi server vengono collegati firewall che decidono se far passare o meno il traffico. Nella loro programmazione ci sono algoritmi che identificano la stragrande maggioranza degli attacchi. Se la potenza dell'attacco non supera i valori fissati nella certificazione, l'hardware funzioner\u00e0 normalmente. Lo svantaggio \u00e8 la larghezza di banda limitata e la difficolt\u00e0 nel ridistribuire il traffico.<\/p>\n<p><strong>Un approccio pi\u00f9 popolare<\/strong> \u00e8 l'uso di una rete filtrante. Poich\u00e9 il traffico \u00e8 generato da una botnet, l'uso di molti computer nella lotta contro il traffico vuoto \u00e8 la soluzione pi\u00f9 ottimale. La rete accoglie il traffico, lo filtra e solo il traffico verificato e di qualit\u00e0 da utenti reali arriva al server target. Il principale vantaggio di questo approccio \u00e8 la flessibilit\u00e0 nella configurazione della protezione. Hacker avanzati hanno gi\u00e0 imparato a mascherare il traffico malevolo come se fosse traffico di visitatori normali. Solo un esperto in sicurezza informatica pu\u00f2 riconoscere il traffico dannoso.<\/p>\n<p>Per proteggersi da tali attacchi, i provider e le aziende di hosting creano reti che filtrano il traffico passante. In casi estremi, \u00e8 possibile collegarsi a nodi di pulizia del traffico di terze parti.<\/p>\n<p>L'architettura della rete \u00e8 composta da tre strati: routing, strato di elaborazione dei pacchetti e strato delle applicazioni. A livello di routing, avviene una distribuzione uniforme del flusso tra i nodi della rete grazie a router ad alte prestazioni. A livello di elaborazione dei pacchetti, pi\u00f9 dispositivi ridondanti filtrano il traffico in entrata secondo algoritmi speciali. A livello delle applicazioni, si svolgono la crittografia, la decrittografia e l'elaborazione delle richieste. Se necessario, \u00e8 possibile leggere i rapporti sulla potenza e sulla durata degli attacchi, oltre ai rapporti di pulizia.<\/p>\n<p><em>Azienda <a href=\"https:\/\/prohoster.info\/it\/hosting\/unlim-khosting\/\"  data-wpil-monitor-id=\"3241\">ProHoster garantir\u00e0 la protezione del tuo sito<\/a> da attacchi DDoS fino a 1,2 Tb\/s. Vengono creati modelli di protezione di base per ogni tipo di server per difendersi dagli attacchi DDoS pi\u00f9 semplici.<\/em> Per domande riguardanti <a rel=\"nofollow\" href=\"\/it\/zhashchita-ot-ddos\/\">la protezione del server web dagli attacchi DDoS<\/a> contattaci tramite il nostro supporto tecnico. Non aspettare che il tuo server vada gi\u00f9 - proteggilo gi\u00e0 oggi!<\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 [&hellip;]<\/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<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 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