{"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\/cs\/blog\/administrirovanie\/dozhivem-do-ponedelnika-ili-kak-perezhit-chyornuyu-pyatnitsu","title":{"rendered":"Do\u017eijeme se pond\u011bl\u00ed nebo jak p\u0159e\u017e\u00edt \u010dern\u00fd p\u00e1tek","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Z\u00edtra je \u201e\u010cern\u00fd p\u00e1tek\u201c \u2014 pro internetov\u00e9 projekty to znamen\u00e1, \u017ee dojde k vrcholn\u00fdm z\u00e1t\u011b\u017e\u00edm na str\u00e1nk\u00e1ch. I ob\u0159\u00ed spole\u010dnosti to nemus\u00ed vydr\u017eet, nap\u0159\u00edklad to se stalo<\/a><\/noindex> u Amazonu b\u011bhem Prime Day v roce 2017.\u00a0<\/p>\n

\"Do\u017eijeme<\/a><\/noindex><\/p>\n

Rozhodli jsme se uv\u00e9st n\u011bkolik jednoduch\u00fdch p\u0159\u00edklad\u016f pr\u00e1ce s virtu\u00e1ln\u00edm serverem, abychom se vyhnuli chyb\u00e1m a nepotk\u00e1vali u\u017eivatele s chybou 503 nebo, co je je\u0161t\u011b hor\u0161\u00ed, s About:blank a ERR_CONNECTION_TIMED_OUT. Z\u016fst\u00e1v\u00e1 jeden den na p\u0159\u00edpravu.
\n<\/a><\/noindex><\/p>\n

\u0160k\u00e1lov\u00e1n\u00ed zdroj\u016f<\/h2>\n

\nWeb se obvykle skl\u00e1d\u00e1 z r\u016fzn\u00fdch modul\u016f \u2014 datab\u00e1z\u00ed, webov\u00e9ho serveru, syst\u00e9mu cache. Ka\u017ed\u00fd z t\u011bchto modul\u016f vy\u017eaduje r\u016fzn\u00e9 typy a objemy zdroj\u016f. Je t\u0159eba p\u0159edem prov\u00e9st anal\u00fdzu objemu pot\u0159ebn\u00fdch zdroj\u016f pomoc\u00ed stresov\u00fdch test\u016f a vyhodnotit rychlost disku, procesorov\u00fd \u010das, pam\u011b\u0165 a \u0161\u00ed\u0159ku p\u00e1sma va\u0161eho webu.<\/p>\n

Stresov\u00e9 testy pomohou ur\u010dit \u00fazk\u00e1 m\u00edsta va\u0161\u00ed soustavy a v\u010das je \u0161k\u00e1lovat. Nap\u0159\u00edklad m\u016f\u017eete zv\u00fd\u0161it v\u00fdkon va\u0161eho serveru t\u00edm, \u017ee na dobu akce zv\u00fd\u0161\u00edte kapacitu pevn\u00e9ho disku, roz\u0161\u00ed\u0159\u00edte \u0161\u00ed\u0159ku p\u00e1sma nebo zv\u00fd\u0161\u00edte opera\u010dn\u00ed pam\u011b\u0165 virtu\u00e1ln\u00edho serveru. Po akci se v\u0161e m\u016f\u017ee vr\u00e1tit zp\u011bt, to se prov\u00e1d\u00ed v osobn\u00edm \u00fa\u010dtu bez pot\u0159eby kontaktovat technickou podporu a trv\u00e1 to p\u00e1r minut, ale l\u00e9pe je to ud\u011blat p\u0159edem a v dob\u011b minim\u00e1ln\u00ed aktivity z\u00e1kazn\u00edk\u016f na webu.<\/p>\n

P\u0159edem se chr\u00e1nit proti DDoS \u00fatok\u016fm<\/h2>\n

\nWeby b\u011bhem v\u00fdprodejn\u00edch dn\u016f padnou nejen kv\u016fli n\u00e1r\u016fstu z\u00e1kazn\u00edk\u016f, ale tak\u00e9 kv\u016fli DDoS \u00fatok\u016fm. Ty mohou podniknout \u00fato\u010dn\u00edci, kte\u0159\u00ed cht\u011bj\u00ed p\u0159esm\u011brovat v\u00e1\u0161 provoz na sv\u00e9 phishingov\u00e9 str\u00e1nky.\u00a0<\/p>\n

DDoS \u00fatoky se ka\u017ed\u00fdm dnem st\u00e1vaj\u00ed st\u00e1le sofistikovan\u011bj\u0161\u00edmi. Hacke\u0159i pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 p\u0159\u00edstupy, \u010dasto kombinuj\u00ed DDoS \u00fatoky s \u00fatoky na zranitelnosti aplikac\u00ed. V\u011bt\u0161ina \u00fatok\u016f je doprov\u00e1zena pokusy o hacknut\u00ed str\u00e1nek.<\/p>\n

Je d\u016fle\u017eit\u00e9 se p\u0159edem p\u0159ipravit a p\u0159ipojit k va\u0161emu serveru IP adresu chr\u00e1n\u011bnou proti \u00fatok\u016fm. V UltraVDS chr\u00e1n\u00edme servery nez\u00e1visle na tom, zda dojde k \u00fatoku, a stabiln\u011b odol\u00e1v\u00e1me \u00fatok\u016fm a\u017e do 1,5 Tbps! Pro ochranu server\u016f p\u0159ed DDoS \u00fatoky se pou\u017e\u00edv\u00e1 s\u00e9rie filtr\u016f p\u0159ipojen\u00fdch k internetov\u00e9mu kan\u00e1lu s dostate\u010dn\u011b velkou propustnost\u00ed. Filtry postupn\u011b analyzuj\u00ed proch\u00e1zej\u00edc\u00ed provoz, identifikuj\u00ed anom\u00e1lie a nestandardn\u00ed s\u00ed\u0165ovou aktivitu. Mezi analyzovan\u00e9 vzory nestandardn\u00edho provozu pat\u0159\u00ed v\u0161echny dosud zn\u00e1m\u00e9 metody \u00fatok\u016f, v\u010detn\u011b t\u011bch prov\u00e1d\u011bn\u00fdch s pomoc\u00ed distribuovan\u00fdch botnet\u016f.<\/p>\n

Pro p\u0159ipojen\u00ed chr\u00e1n\u011bn\u00e9 adresy k virtu\u00e1ln\u00edmu serveru je t\u0159eba zaslat \u017e\u00e1dost do podpory poskytovatele p\u0159edem.<\/p>\n

Zrychlit na\u010d\u00edt\u00e1n\u00ed webu<\/h2>\n

\nV obdob\u00ed akc\u00ed se zvy\u0161uje z\u00e1t\u011b\u017e na servery, na str\u00e1nk\u00e1ch se za\u010d\u00ednaj\u00ed dlouho na\u010d\u00edtat obr\u00e1zky a karty produkt\u016f. Tak\u00e9 na\u010d\u00edt\u00e1n\u00ed str\u00e1nek zt\u011b\u017euj\u00ed r\u016fzn\u00e9 frameworky, JS knihovny, CSS moduly a tak d\u00e1le. Potenci\u00e1ln\u00ed z\u00e1kazn\u00edk m\u016f\u017ee z webu odej\u00edt bez reakce, i kdy\u017e m\u00e1 lep\u0161\u00ed nab\u00eddku ne\u017e konkurenti. Pro kontrolu rychlosti na\u010d\u00edt\u00e1n\u00ed str\u00e1nek doporu\u010dujeme pou\u017e\u00edt Google DevTools.<\/p>\n

S\u00edt\u00ed pro doru\u010dov\u00e1n\u00ed obsahu (Content Delivery Network, CDN) lze urychlit na\u010d\u00edt\u00e1n\u00ed str\u00e1nek. CDN je geograficky distribuovan\u00e1 s\u00ed\u0165 slo\u017een\u00e1 z ke\u0161ovac\u00edch uzl\u016f - bod\u016f p\u0159\u00edtomnosti, kter\u00e9 mohou b\u00fdt po cel\u00e9m sv\u011bt\u011b. Kdy\u017e z\u00e1kazn\u00edk nav\u0161t\u00edv\u00ed web, obdr\u017e\u00ed statick\u00fd obsah ne od va\u0161eho serveru, ale od toho, kter\u00fd je sou\u010d\u00e1st\u00ed CDN s\u00edt\u011b a je bl\u00ed\u017ee k n\u011bmu. D\u00edky zkr\u00e1cen\u00ed trasy mezi serverem a klientem se data na webu na\u010d\u00edtaj\u00ed rychleji.<\/p>\n

CDN s\u00ed\u0165 si m\u016f\u017eete nastavit sami, pokud m\u00e1te VDS na Windows Server Core 2019, zde m\u016f\u017eete pou\u017e\u00edt integrovan\u00e9 prost\u0159edky opera\u010dn\u00edho syst\u00e9mu jako: Active Directory, DFS, IIS, WinAcme, RSAT. M\u016f\u017eete tak\u00e9 vyu\u017e\u00edt hotov\u00e1 \u0159e\u0161en\u00ed, nap\u0159\u00edklad CDN od Cloudflare by mohla vy\u0159e\u0161it \u00fakol znacn\u011b rychleji a levn\u011bji. Nav\u00edc m\u00e1 tento syst\u00e9m dal\u0161\u00ed funkce: DNS, kompresi HTML, CSS, JS, mnoho bod\u016f p\u0159\u00edtomnosti.<\/p>\n

P\u0159ejeme v\u00e1m \u00fasp\u011b\u0161n\u00fd prodej.<\/p>\n

\u010cern\u00fd p\u00e1tek v UltraVDS<\/h2>\n

\nAni my jsme nep\u0159ehl\u00e9dli tradi\u010dn\u00ed slevy v tento den a nab\u00edz\u00edme u\u017eivatel\u016fm Habr promo k\u00f3d. BlackFr<\/b> s 15% slevou na v\u0161echny na\u0161e virtu\u00e1ln\u00ed servery od 28. listopadu do 2. prosince v\u010detn\u011b.<\/p>\n

Nap\u0159\u00edklad, VDS<\/a><\/noindex> server na tarifu UltraLight s 1 j\u00e1drem CPU, 500 MB RAM a 10 GB \u00falo\u017en\u00e9ho prostoru se syst\u00e9mem Windows Server Core 2019 lze po\u0159\u00eddit s promo k\u00f3dem BlackFr<\/b> s dodate\u010dnou 30% slevou na rok za pouh\u00fdch 55 K\u010d m\u011bs\u00ed\u010dn\u011b, celkov\u00e1 sleva tedy bude \u010dinit 45% z aktu\u00e1ln\u00ed ceny.<\/p>\n

UltraVDS<\/a><\/noindex> \u2014 modern\u00ed cloudov\u00fd poskytovatel, s n\u00e1mi pracuj\u00ed stovky velk\u00fdch organizac\u00ed, mezi nimi\u017e jsou zn\u00e1m\u00e9 banky, burzovn\u00ed makl\u00e9\u0159i, stavebn\u00ed a farmaceutick\u00e9 spole\u010dnosti.\u00a0<\/p>\n

\"Do\u017eijeme<\/a><\/noindex>
\n
Zdroj: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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