{"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\/sv\/blog\/zashhita-ot-ddos-atak\/zashhita-servera-ot-ddos-atak","title":{"rendered":"Skydd av server mot DDoS-attacker","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Om din webbplats har politisk karakt\u00e4r, tar emot betalningar \u00f6ver Internet eller om du driver ett l\u00f6nsamt f\u00f6retag \u2013 DDoS-attack<\/strong> kan intr\u00e4ffa n\u00e4r som helst. DDoS f\u00f6rkortas fr\u00e5n engelskans \u201dDistributed Denial of Service\u201d, vilket inneb\u00e4r en distribuerad attack f\u00f6r att f\u00f6rhindra service. Och skyddet av webbservern mot DDoS-attacker<\/a> \u00e4r den viktigaste delen av kvalitetswebbhotell.<\/p>\n

Enkelt uttryckt, DDoS-attack<\/strong> \u00e4r det en \u00f6versv\u00e4mning av servern s\u00e5 att den inte kan betj\u00e4na bes\u00f6karna. Hackare tar kontroll \u00f6ver ett datorn\u00e4tverk och skickar en massiv m\u00e4ngd tomma f\u00f6rfr\u00e5gningar till den specifika servern. Storleken p\u00e5 botn\u00e4tet kan variera fr\u00e5n flera dussin till flera hundra tusen datorer. Servern tvingas svara p\u00e5 alla f\u00f6rfr\u00e5gningar, klarar inte av belastningen och kraschar.<\/p>\n

\"\"<\/p>\n

System f\u00f6r skydd av servrar mot DDoS-attacker<\/h2>\n

Det \u00e4r m\u00f6jligt att bek\u00e4mpa DDoS-attacker<\/strong> med h\u00e5rdvarumetoder. F\u00f6r detta kopplas brandv\u00e4ggar till serverutrustningen f\u00f6r att avg\u00f6ra om trafiken ska till\u00e5tas att passera vidare. I deras firmware \u00e4r algoritmer programerade som identifierar de flesta attacker. Om attackens intensitet inte \u00f6verskrider de v\u00e4rden som anges i certifieringen, kommer utrustningen att fungera som vanligt. Nackdelen \u00e4r den begr\u00e4nsade bandbredden och sv\u00e5righeten att omf\u00f6rdela trafiken.<\/p>\n

En mer popul\u00e4r l\u00f6sning<\/strong> \u00e4r att anv\u00e4nda ett filtrerande n\u00e4tverk. Eftersom trafiken genereras av botn\u00e4tet, \u00e4r det mest optimala att anv\u00e4nda m\u00e5nga datorer f\u00f6r att bek\u00e4mpa den tomma trafiken. N\u00e4tverket tar emot trafiken, filtrerar den och endast verifierad och kvalitets trafik fr\u00e5n riktiga anv\u00e4ndare n\u00e5r den avsedda servern. Den st\u00f6rsta f\u00f6rdelen med denna metod \u00e4r m\u00f6jligheten att flexibelt anpassa skyddet. Avancerade hackare har redan l\u00e4rt sig att maskera skadlig trafik som vanlig bes\u00f6kartrafik. Endast en erfaren informationstrygghetsspecialist kan k\u00e4nna igen d\u00e5lig trafik.<\/p>\n

F\u00f6r att skydda mot s\u00e5dana attacker skapar leverant\u00f6rer och webbhotell n\u00e4tverk som passerar trafiken genom sig och filtrerar den. I sista hand \u00e4r det m\u00f6jligt att ansluta till externa trafikrensningsnoder.<\/p>\n

N\u00e4tverksarkitekturen best\u00e5r av tre lager: routing, pakethanteringslager och applikationslager. P\u00e5 routingsniv\u00e5n sker en j\u00e4mn f\u00f6rdelning av fl\u00f6det mellan n\u00e4tknutpunkter tack vare h\u00f6gpresterande routare. P\u00e5 pakethanteringsniv\u00e5n filtrerar flera redundanta enheter den inkommande trafiken efter speciella algoritmer. P\u00e5 applikationsniv\u00e5n sker kryptering, dekryptering och behandling av f\u00f6rfr\u00e5gningar. Vid behov kan du l\u00e4sa rapporter om kapacitet och varaktighet av attacker samt rapporter om rensning.<\/p>\n

F\u00f6retag ProHoster kommer att skydda din webbplats<\/a> fr\u00e5n DDoS-attacker med en kapacitet p\u00e5 upp till 1,2 Tb\/s. F\u00f6r varje typ av server byggs standard skyddsmallar mot de enklaste DDoS-attackerna som standard.<\/em> F\u00f6r fr\u00e5gor ang\u00e5ende skydd av webben server mot DDoS-attacker<\/a> kontakta v\u00e5r tekniska support. V\u00e4nta inte tills din server g\u00e5r ner \u2013 skydda den redan idag!<\/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\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 Skydd av webben server mot DDoS-attacker med serverskyddssystem | ProHoster","description":"Om din webbplats har politisk karakt\u00e4r, tar emot betalningar via Internet eller om du driver en l\u00f6nsam verksamhet \u2013 kan en DDoS-attack intr\u00e4ffa n\u00e4r som 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