{"id":53339,"date":"2019-11-29T00:00:00","date_gmt":"2019-11-28T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/dozhivem-do-ponedelnika-ili-kak-perezhit-chyornuyu-pyatnitsu"},"modified":"2020-02-18T14:01:14","modified_gmt":"2020-02-18T11:01:14","slug":"dozhivem-do-ponedelnika-ili-kak-perezhit-chyornuyu-pyatnitsu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/dozhivem-do-ponedelnika-ili-kak-perezhit-chyornuyu-pyatnitsu","title":{"rendered":"Vi overlever til mandag eller hvordan man overlever Black Friday","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>I morgen er det \u00abBlack Friday\u00bb \u2014 for internetprojekter betyder det, at der vil v\u00e6re spidsbelastninger p\u00e5 hjemmesiden. Selv de store spillere kan have problemer med at h\u00e5ndtere dem, som for eksempel <noindex><a rel=\"nofollow\" href=\"https:\/\/www.amazon.com\/Krups-404-70-Open-Master-Opener\/product-reviews\/B00004SPED?pageNumber=2\">skete<\/a><\/noindex> med Amazon p\u00e5 Prime Day i 2017.\u00a0<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ultravds\/blog\/477824\/\"><img decoding=\"async\" alt=\"Vi overlever til mandag eller hvordan man overlever Black Friday\" src=\"\/wp-content\/uploads\/2019\/11\/8eb238383f2164b20c5eefb6efa72d63.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>Vi har besluttet at give et par enkle eksempler p\u00e5, hvordan man arbejder med en virtuel server for at undg\u00e5 fejl og undg\u00e5 at m\u00f8de folk med 503-siden eller endnu v\u00e6rre, About:blank og ERR_CONNECTION_TIMED_OUT. Der er kun \u00e9n dag tilbage til at forberede sig.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Skalering af ressourcer<\/h2>\n<p>\nEn hjemmeside best\u00e5r typisk af forskellige moduler \u2014 databaser, webservere, cache-systemer. Hvert af disse moduler kr\u00e6ver forskellige typer og m\u00e6ngder af ressourcer. Det er n\u00f8dvendigt at udf\u00f8re en analyse af det forbrugte ressourcest\u00f8rrelse p\u00e5 forh\u00e5nd ved hj\u00e6lp af stresstest og vurdere diskens input-output hastighed, CPU-tid, hukommelse og den internetb\u00e5ndbredde, din hjemmeside kr\u00e6ver.<\/p>\n<p>Stresstest kan hj\u00e6lpe med at identificere flaskehalse i dit system og forberede skalering i forvejen. For eksempel kan du forbedre din servers kapacitet ved at \u00f8ge opbevaringspladsen p\u00e5 harddisken i l\u00f8bet af kampagnen, udvide b\u00e5ndbredden p\u00e5 hjemmesiden eller \u00f8ge det virtuelle servers RAM. Efter kampagnen kan du vende det hele tilbage til det oprindelige, hvilket kan g\u00f8res i brugerpanelet uden at kontakte support og tager et par minutter, men det er bedst at g\u00f8re det p\u00e5 forh\u00e5nd og i timer med minimal kundetrafik p\u00e5 hjemmesiden.<\/p>\n<h2>Beskyt dig selv mod DDoS-angreb p\u00e5 forh\u00e5nd<\/h2>\n<p>\nWebsteder falder i udsalgsdage ikke kun p\u00e5 grund af den \u00f8gede kundetrafik, men ogs\u00e5 p\u00e5 grund af DDoS-angreb. Disse kan blive udf\u00f8rt af ondsindede personer, der \u00f8nsker at omdirigere din trafik til deres phishing-ressourcer.\u00a0<\/p>\n<p>DDoS-angreb bliver mere og mere sofistikerede for hver dag. Hackere bruger forskellige metoder, ofte kombineret med DDoS-angreb og angreb p\u00e5 applikationssvagheder. I de fleste tilf\u00e6lde ledsages angrebene af fors\u00f8g p\u00e5 at hacke hjemmesiden.<\/p>\n<p>Det er vigtigt at forberede sig p\u00e5 forh\u00e5nd og tilslutte en beskyttet IP-adresse til din server mod angreb. Hos UltraVDS beskytter vi servere ikke kun ved angreb, men arbejder konstant og stabilt for at modst\u00e5 angreb op til 1,5 Tbps! For at beskytte servere mod DDoS-angreb anvendes en serie filtre tilsluttet internetkanalen med tilstr\u00e6kkelig h\u00f8j kapacitet. Filtre analyserer kontinuerligt den passerende trafik og identificerer anomalier og us\u00e6dvanlig netv\u00e6rksaktivitet. Blandt de analyserede m\u00f8nstre af us\u00e6dvanlig trafik er alle kendte angrebsmetoder, herunder dem, der udf\u00f8res ved hj\u00e6lp af distribuerede botnet.<\/p>\n<p>For at tilslutte en beskyttet adresse til en virtuel server skal du indsende en anmodning til udbyderens supporttjeneste p\u00e5 forh\u00e5nd.<\/p>\n<h2>Accelerere indl\u00e6sning af webstedet<\/h2>\n<p>\nI perioder med kampagner stiger belastningen p\u00e5 serverne, og billeder og produktkort p\u00e5 hjemmesiderne begynder at indl\u00e6se langsomt. Desuden belaster forskellige rammer, JS-biblioteker, CSS-moduler og s\u00e5 videre ogs\u00e5 sideindl\u00e6sningen. En potentiel kunde kan forlade siden, uden at have modtaget svar fra webstedet, selvom der er et mere fordelagtigt tilbud end konkurrenterne. Vi anbefaler at bruge Google DevTools til at kontrollere hastigheden af siden.<\/p>\n<p>En indholdleveringsnetv\u00e6rk (Content Delivery Network, CDN) kan hj\u00e6lpe med at accelerere indl\u00e6sningen af sider. CDN er et geografisk distribueret netv\u00e6rk best\u00e5ende af cachenoder \u2014 tilstedev\u00e6relsespunkter, der kan befinde sig over hele verden. N\u00e5r kunden bes\u00f8ger webstedet, vil de modtage statisk indhold ikke fra din server, men fra den, der er en del af CDN-netv\u00e6rket og ligger t\u00e6ttere p\u00e5 dem. Ved at forkorte ruten mellem serveren og kunden indl\u00e6ses data p\u00e5 webstedet hurtigere.<\/p>\n<p>CDN-netv\u00e6rket kan ops\u00e6ttes selv, hvis du har en VDS med Windows Server Core 2019. Til dette kan du bruge de indbyggede v\u00e6rkt\u00f8jer i operativsystemet s\u00e5som: Active Directory, DFS, IIS, WinAcme, RSAT. Derudover kan du ogs\u00e5 bruge f\u00e6rdige l\u00f8sninger, for eksempel kunne CDN fra Cloudflare l\u00f8se opgaven betydeligt hurtigere og billigere. Plus, dette system har ekstra muligheder: DNS, komprimering af HTML, CSS, JS, mange tilstedev\u00e6relsespunkter.<\/p>\n<p>\u00d8nsker dig held og lykke med salget.<\/p>\n<h2>Black Friday hos UltraVDS<\/h2>\n<p>\nVi har ogs\u00e5 taget del i de traditionelle rabatter denne dag og tilbyder brugerne p\u00e5 Habr en rabatkode <b>BlackFr<\/b> med 15% rabat p\u00e5 alle vores virtuelle servere fra 28. november til 2. december inklusive.<\/p>\n<p>For eksempel, <noindex><a rel=\"nofollow\" href=\"https:\/\/ultravds.com\/\">VDS<\/a><\/noindex> UltraLight-servicen med 1 CPU-kerne, 500 MB RAM og 10 GB diskplads, der k\u00f8rer Windows Server Core 2019, kan k\u00f8bes med rabatkoden <b>BlackFr<\/b> med en yderligere 30% rabat p\u00e5 \u00e5ret for kun 55 rubler om m\u00e5neden, hvilket giver en samlet rabat p\u00e5 45% fra den nuv\u00e6rende pris.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/ultravds.com\/\">UltraVDS<\/a><\/noindex> \u2014 en moderne cloud-udbyder, vi arbejder med hundreder af store organisationer, herunder kendte banker, b\u00f8rsm\u00e6glere, bygge- og medicinalfirmaer.\u00a0<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/ultravds.com\/\"><img decoding=\"async\" alt=\"Vi overlever til mandag eller hvordan man overlever Black Friday\" src=\"\/wp-content\/uploads\/2019\/11\/67e30d88735fd88dd3f778267aa1bd04.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ultravds\/blog\/477824\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0417\u0430\u0432\u0442\u0440\u0430 \u00ab\u0427\u0435\u0440\u043d\u0430\u044f \u041f\u044f\u0442\u043d\u0438\u0446\u0430\u00bb \u2014 \u0434\u043b\u044f \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432 \u044d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442, \u0447\u0442\u043e \u0431\u0443\u0434\u0443\u0442 \u043f\u0438\u043a\u043e\u0432\u044b\u0435 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0430 \u0441\u0430\u0439\u0442. \u0418\u0445 \u043c\u043e\u0433\u0443\u0442 \u043d\u0435 \u0432\u044b\u0434\u0435\u0440\u0436\u0430\u0442\u044c \u0434\u0430\u0436\u0435 \u0433\u0438\u0433\u0430\u043d\u0442\u044b, \u0442\u0430\u043a \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0441\u043b\u0443\u0447\u0438\u043b\u043e\u0441\u044c \u0441 Amazon \u0432 Prime Day \u0432 2017 \u0433\u043e\u0434\u0443.\u00a0 \u041c\u044b \u0440\u0435\u0448\u0438\u043b\u0438 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u043e\u0441\u0442\u044b\u0445 \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u0432 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u043c, \u0447\u0442\u043e\u0431\u044b \u0438\u0437\u0431\u0435\u0436\u0430\u0442\u044c \u043e\u0448\u0438\u0431\u043e\u043a \u0438 \u043d\u0435 \u0432\u0441\u0442\u0440\u0435\u0447\u0430\u0442\u044c \u043d\u0430\u0440\u043e\u0434 503 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435\u0439 \u0438\u043b\u0438 \u0447\u0442\u043e \u0435\u0449\u0435 \u0445\u0443\u0436\u0435, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-53339","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0417\u0430\u0432\u0442\u0440\u0430 \u00ab\u0427\u0435\u0440\u043d\u0430\u044f \u041f\u044f\u0442\u043d\u0438\u0446\u0430\u00bb \u2014 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