{"id":25307,"date":"2021-09-28T07:27:22","date_gmt":"2021-09-28T05:27:22","guid":{"rendered":"https:\/\/www.websupport.sk\/blog\/?p=25307"},"modified":"2025-03-11T21:08:06","modified_gmt":"2025-03-11T20:08:06","slug":"nasadzujeme-novy-stit-proti-ddos-utokom","status":"publish","type":"post","link":"https:\/\/www.websupport.sk\/blog\/2021\/09\/nasadzujeme-novy-stit-proti-ddos-utokom\/","title":{"rendered":"Nasadzujeme nov\u00fd \u0161t\u00edt proti DDoS \u00fatokom"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\"><b>Doba \u010d\u00edtania:<\/b><\/span> <span class=\"rt-time\"> 7<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\n<p><em>Webhosting nie je len o hostingoch a dom\u00e9nach. Aby v\u0161etky tieto slu\u017eby mohli be\u017ea\u0165 e\u0161te lep\u0161ie a stabilnej\u0161ie, pripravujeme nov\u00fa infra\u0161trukt\u00faru pre DNS slu\u017eby. Vrav\u00edte si, \u017ee v\u00e1s ako z\u00e1kazn\u00edka\/z\u00e1kazn\u00ed\u010dky sa to net\u00fdka? Po\u010fte sa dozvedie\u0165, \u010do v\u0161etko touto inov\u00e1ciou z\u00edskate.<br><br>Rozpr\u00e1vali sme sa s jedn\u00fdm z k\u013e\u00fa\u010dov\u00fdch \u013eud\u00ed, ktor\u00ed za touto zmenou stoja &#8211; s Tom\u00e1\u0161om H\u00e1lom, ktor\u00fd p\u00f4sob\u00ed ako CEE IT Security &amp; Operations Manager vo Websupporte.<\/em><\/p>\n\n\n\n<p><strong>V rozhovore sa dozviete:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ako zlep\u0161\u00edme bezpe\u010dnos\u0165 slu\u017eieb vo\u010di DDoS \u00fatokom,<\/li><li>ak\u00fd vplyv m\u00e1 DNS na r\u00fdchlos\u0165 na\u010d\u00edtania webu,<\/li><li>ak\u00e9 technol\u00f3gie bude na\u0161a nov\u00e1 infra\u0161trukt\u00fara vyu\u017e\u00edva\u0165,<\/li><li>\u010do je to IP anycast,<\/li><li>kde vo svete sa nach\u00e1dzaj\u00fa na\u0161e server stacky.<br><br><\/li><\/ul>\n\n\n\n<p><em><strong>\u010co to je DNS a na \u010do sl\u00fa\u017ei?<\/strong><\/em><\/p>\n\n\n\n<p>Slu\u017eba DNS prev\u00e1dza dom\u00e9nov\u00e9 men\u00e1, napr\u00edklad example.com, na tzv. IP adresy, ktor\u00fdm rozumej\u00fa po\u010d\u00edta\u010de (mobily, servery a pod.). Je to z\u00e1kladn\u00e1 slu\u017eba, na ktorej fungovan\u00ed s\u00fa z\u00e1visl\u00e9 v\u0161etky internetov\u00e9 slu\u017eby &#8211; weby, emaily, mobiln\u00e9 aplik\u00e1cie, zasielanie spr\u00e1v, vide\u00e1, online konferencie, internetov\u00e9 bankovn\u00edctvo, d\u00e1tov\u00e9 schr\u00e1nky, cloudov\u00e9 slu\u017eby alebo soci\u00e1lne siete &#8211; jednoducho v\u0161etko, \u010do sa nach\u00e1dza v online priestore.<\/p>\n\n\n\n<p><em><strong>Ako sa prejavuje (ne)kvalita DNS slu\u017eieb?<\/strong><\/em><\/p>\n\n\n\n<p>Ak slu\u017eba DNS funguje spr\u00e1vne, ani o nej nevieme. Ak s\u00fa s \u0148ou probl\u00e9my, prejav\u00ed sa to ako pomal\u00e1 odozva alebo v\u00fdpadky internetov\u00fdch slu\u017eieb, pr\u00edpadne bezpe\u010dnostn\u00e9 probl\u00e9my. Preto je d\u00f4le\u017eit\u00e9 ma\u0165 spo\u013eahliv\u00e9ho poskytovate\u013ea slu\u017eby DNS, ktor\u00fdm je naj\u010dastej\u0161ie t\u00e1 spolo\u010dnos\u0165, u ktorej si registrujete samotn\u00fa dom\u00e9nu.<\/p>\n\n\n\n<p><em><strong>Ak\u00e1 je na\u0161a aktu\u00e1lna situ\u00e1cia?<\/strong><\/em><\/p>\n\n\n\n<p>Aktu\u00e1lne prev\u00e1dzkujeme tri nez\u00e1visl\u00e9 tzv. autoritat\u00edvne DNS servery, na ktor\u00fdch s\u00fa prev\u00e1dzkovan\u00e9 v\u0161etky u n\u00e1s registrovan\u00e9 dom\u00e9ny. Podporujeme tie\u017e bezpe\u010dnostn\u00e9 roz\u0161\u00edrenie DNSSEC, ktor\u00e9 chr\u00e1ni syst\u00e9m proti zneu\u017e\u00edvaniu DNS odpoved\u00ed a z toho plyn\u00facich bezpe\u010dnostn\u00fdch probl\u00e9mov.&nbsp;<\/p>\n\n\n\n<p><em><strong>\u010co na to pou\u017e\u00edvame teraz? Ak\u00e9 technol\u00f3gie?<\/strong><\/em><\/p>\n\n\n\n<p>Na\u0161a infra\u0161trukt\u00fara je zalo\u017een\u00e1 na autoritat\u00edvnom DNS serveri KnotDNS, ktor\u00fd je vyv\u00edjan\u00fd n\u00e1rodn\u00fdm registrom .CZ dom\u00e9ny CZ.NIC, a \u010fal\u0161\u00edch podporn\u00fdch syst\u00e9moch, ktor\u00e9 si vyv\u00edjame sami interne.<\/p>\n\n\n\n<p><em><strong>Pre\u010do rob\u00edme zmenu a \u010do n\u00e1m zmena prinesie?<\/strong><\/em><\/p>\n\n\n\n<p>S\u00fa v z\u00e1sade tri d\u00f4vody, kv\u00f4li ktor\u00fdm do syst\u00e9mu DNS v\u00fdrazne investujeme (ako po finan\u010dnej str\u00e1nke, tak po str\u00e1nke n\u00e1\u0161ho v\u00fdvoja):<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Pozorujeme \u010doraz \u010dastej\u0161ie a silnej\u0161ie tzv. DDoS \u00fatoky, ktor\u00e9 maj\u00fa za cie\u013e vyradi\u0165 syst\u00e9m DNS z prev\u00e1dzky. Chceme infra\u0161trukt\u00faru upravi\u0165 tak, aby bola maxim\u00e1lne robustn\u00e1 a zabezpe\u010dila spo\u013eahliv\u00fa prev\u00e1dzku v\u0161etk\u00fdch hostovan\u00fdch dom\u00e9n aj v pr\u00edpadoch, ke\u010f sme cie\u013eom ve\u013emi siln\u00fdch \u00fatokov.<br><\/li><li>V\u010faka akvizi\u010dn\u00fdm aktivit\u00e1m v na\u0161ej hostingovej skupine skokovo rastieme a hos\u0165ujeme v\u00fdrazne viac dom\u00e9n (z r\u00e1dov stoviek tis\u00edc dom\u00e9n sa pos\u00favame do r\u00e1dov mili\u00f3nov, teda ide r\u00e1dovo o desa\u0165n\u00e1sobn\u00fd rast vo ve\u013emi kr\u00e1tkej dobe). Chceme si by\u0165 ist\u00ed, \u017ee na\u0161a infra\u0161trukt\u00fara tento raketov\u00fd rast dok\u00e1\u017ee bez probl\u00e9mov obsl\u00fa\u017ei\u0165.<br><\/li><li>Chceme zabezpe\u010di\u0165 n\u00edzku dobu odozvy (tzv. latenciu) DNS slu\u017eby nielen v Eur\u00f3pe, ale aj vo zvy\u0161ku sveta. R\u00fdchla odozva DNS sa prejav\u00ed v r\u00fdchlej\u0161om fungovan\u00ed v\u0161etk\u00fdch ostatn\u00fdch slu\u017eieb, napr. na r\u00fdchlosti na\u010d\u00edtania webovej str\u00e1nky.<\/li><\/ol>\n\n\n\n<p><em><strong>Ako sa infra\u0161trukt\u00fara menila? Ako prebiehal v\u00fdvoj a \u010do sme testovali?<\/strong><\/em><\/p>\n\n\n\n<p>Vytvorili sme \u00faplne nov\u00fd dizajn DNS infra\u0161trukt\u00fary &#8211; in\u0161pirovan\u00fd infra\u0161trukt\u00farou pre TLD dom\u00e9nu .CZ od CZ.NIC. Vyu\u017e\u00edva tzv. DNS stacky r\u00f4znych ve\u013ekost\u00ed, ktor\u00e9 s\u00fa rozmiestnen\u00e9 do najr\u00f4znej\u0161\u00edch lokal\u00edt po svete. Ka\u017ed\u00fd stack je samostatn\u00e1 jednotka schopn\u00e1 odbavi\u0165 nielen be\u017en\u00e9 mno\u017estvo DNS po\u017eiadaviek, ale aj r\u00e1dovo v\u00e4\u010d\u0161iu prev\u00e1dzku po\u010das DDoS \u00fatokov. Testovanie prebieha v nieko\u013ek\u00fdch rovin\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>testovanie z\u00e1kladnej funk\u010dnosti (odpovede na DNS po\u017eiadavky, propag\u00e1cia zmien a i.),<\/li><li>testovanie v\u00fdkonu (schopnos\u0165 obsl\u00fa\u017ei\u0165 vysok\u00e9 mno\u017estvo po\u017eiadaviek na vysok\u00fd po\u010det z\u00f3n a r\u00fdchlos\u0165 propag\u00e1cie zmien),<\/li><li>testy redundancie (tj. zachovanie prev\u00e1dzky v pr\u00edpade \u010diasto\u010dnej odst\u00e1vky \u010di v\u00fdpadku).<\/li><\/ul>\n\n\n\n<p><em><strong>\u010co n\u00e1m to umo\u017en\u00ed?<\/strong><\/em><\/p>\n\n\n\n<p>Okrem v\u00fdrazne vy\u0161\u0161ej odolnosti proti DDoS \u00fatokom tie\u017e servisovate\u013enos\u0165 za chodu, \u010di\u017ee mo\u017enos\u0165 odstavi\u0165 ur\u010dit\u00e9 \u010dasti infra\u0161trukt\u00fary (celej lokality) po\u010das \u00fadr\u017eby (upgrady a pod.) bez toho, aby to malo vplyv na dostupnos\u0165 DNS slu\u017eby.<\/p>\n\n\n\n<p><em><strong>Ako to monitorujeme?<\/strong><\/em><\/p>\n\n\n\n<p>Okrem z\u00e1kladn\u00e9ho monitoringu, ktor\u00fd je zalo\u017een\u00fd na syst\u00e9me Zabbix a externom monitoringu Pingdom, vyu\u017e\u00edvame infra\u0161trukt\u00faru v r\u00e1mci projektu RIPE Atlas pre monitoring dostupnosti z mnoh\u00fdch sond po celom svete, aby sme mali \u010do najdetailnej\u0161\u00ed obraz fungovania cel\u00e9ho syst\u00e9mu.<\/p>\n\n\n\n<p><em><strong>Ak\u00fa technol\u00f3giu pou\u017e\u00edvame po novom?<\/strong><\/em><\/p>\n\n\n\n<p>Hlavnou zmenou je nasadenie technol\u00f3gie IP anycast. Za be\u017en\u00fdch podmienok sa za jednou IP adresou skr\u00fdva jeden server v jednej lokalite. S technol\u00f3giou IP anycast m\u00f4\u017eete za jednu IP adresu schova\u0165 prakticky neobmedzen\u00e9 mno\u017estvo serverov v mnoh\u00fdch lokalit\u00e1ch po celom svete, pri\u010dom klient dostane odpove\u010f v\u017edy z tej lokality, ktor\u00e1 je sie\u0165ovo najbli\u017e\u0161ie. V pr\u00edpade nedostupnosti \u013eubovo\u013enej lokality preberaj\u00fa jej \u00falohu automaticky ostatn\u00e9 lokality, \u010d\u00edm sa dosahuje vysok\u00e1 dostupnos\u0165.<\/p>\n\n\n\n<p><em><strong>Ak\u00e9 benefity m\u00e1 toto rie\u0161enie pre bud\u00facnos\u0165 siete, stabilitu a mo\u017enosti jej roz\u0161\u00edrenia?&nbsp;<\/strong><\/em><\/p>\n\n\n\n<p>Rie\u0161enie umo\u017e\u0148uje u\u017e spom\u00ednan\u00fa servisovate\u013enos\u0165 za chodu, vysok\u00fa dostupnos\u0165 a tie\u017e roz\u0161irovanie do prakticky neobmedzen\u00e9ho mno\u017estva \u010fal\u0161\u00edch lokal\u00edt. Z\u00e1rove\u0148 zaist\u00ed r\u00fdchlej\u0161ie odpovede na DNS dopyty, preto\u017ee fyziku neo\u0161\u00e1lite &#8211; odpove\u010f na dopyt medzi Eur\u00f3pou a Amerikou trv\u00e1 r\u00e1dovo stovky ms a ur\u00fdchli\u0165 u\u017e nejde. Pokia\u013e na dopyt z Ameriky odpoviete v Amerike, dostanete sa na 10x r\u00fdchlej\u0161ie odpovede.<\/p>\n\n\n\n<p><em><strong>Jedn\u00fdm z benefitov je aj DDoS ochrana. \u010co je to DDoS?<\/strong><\/em><\/p>\n\n\n\n<p>Princ\u00edp DDoS \u00fatoku je jednoduch\u00fd &#8211; sna\u017e\u00ed sa syst\u00e9m zahlti\u0165 tak\u00fdm mno\u017estvom po\u017eiadaviek z mnoh\u00fdch miest s\u00fabe\u017ene, \u017ee to cie\u013eov\u00fd syst\u00e9m prestane st\u00edha\u0165 a st\u00e1va sa nedostupn\u00fdm. Dnes \u010del\u00edme DDoS \u00fatokom so silou 170Gbps+ a ich sila postupne narast\u00e1. Technol\u00f3gia IP anycast s vhodne vybran\u00fdmi lokalitami pom\u00f4\u017ee v boji s t\u00fdmito \u00fatokmi t\u00fdm, \u017ee vysok\u00fa prev\u00e1dzku rozlo\u017e\u00ed do viacer\u00fdch lokal\u00edt, teda sa \u013eah\u0161ie zvl\u00e1da filtrova\u0165 a obsl\u00fa\u017ei\u0165 bez zahltenia. Z\u00e1rove\u0148 zadr\u017eiava ve\u013ek\u00fa \u010das\u0165 \u00fatoku \u010do najbli\u017e\u0161ie jeho zdroju. Tak\u017ee ak \u00fatok poch\u00e1dza napr\u00edklad prim\u00e1rne z \u00c1zie, tak jeho podstatn\u00e1 \u010das\u0165 v \u00c1zii zostane a do na\u0161ich hlavn\u00fdch datacentier v Eur\u00f3pe u\u017e doraz\u00ed len men\u0161ia \u010das\u0165, ktor\u00fa zvl\u00e1dneme obsl\u00fa\u017ei\u0165 bez dopadu na dostupnos\u0165 slu\u017eby.<\/p>\n\n\n\n<p><em><strong>\u010co v\u0161etko je potrebn\u00e9 rie\u0161i\u0165, ak zist\u00edme, \u017ee sme ter\u010dom DDoS \u00fatoku?<\/strong><\/em><\/p>\n\n\n\n<p>Ak v\u0161etko funguje tak, ako m\u00e1, dok\u00e1\u017ee infra\u0161trukt\u00fara \u00fatoku \u010deli\u0165 bez nutnosti ru\u010dn\u00e9ho z\u00e1sahu &#8211; rozsiahly \u00fatok je rozlo\u017een\u00fd na nieko\u013eko men\u0161\u00edch, tieto \u010dasti s\u00fa v cie\u013eov\u00fdch lokalit\u00e1ch \u010falej filtrovan\u00e9 a zvy\u0161ok je obsl\u00fa\u017een\u00fd v\u010faka v\u00fdrazn\u00e9mu naddimenzovaniu konektivity a HW. V pr\u00edpade, \u017ee niektor\u00e9 \u010diastkov\u00e9 opatrenia zlyhaj\u00fa, sme schopn\u00ed si prev\u00e1dzku prelieva\u0165 pod\u013ea potreby tam, kde ju lep\u0161ie vyfiltrujeme\/obsl\u00fa\u017eime alebo kde nebude ma\u0165 negat\u00edvny vplyv na samotn\u00e9 slu\u017eby, a to \u00faplne transparentne.<\/p>\n\n\n\n<p><em><strong>Ako to poc\u00edtia na\u0161i z\u00e1kazn\u00edci?<\/strong><\/em><\/p>\n\n\n\n<p>Pou\u017e\u00edvatelia slu\u017eieb na dom\u00e9nach na\u0161ich z\u00e1kazn\u00edkov bud\u00fa automaticky \u0165a\u017ei\u0165 z r\u00fdchlej\u0161ej odozvy syst\u00e9mu a z\u00e1rove\u0148 sa z\u00e1kazn\u00edci m\u00f4\u017eu spo\u013eahn\u00fa\u0165, \u017ee slu\u017eby na ich dom\u00e9ne bud\u00fa dostupn\u00e9 aj v pr\u00edpade ve\u013emi siln\u00fdch DDoS \u00fatokov.<\/p>\n\n\n\n<p><em><strong>DNS servery s\u00fa len v na\u0161ej internej infra\u0161trukt\u00fare alebo aj u in\u00fdch providerov?<\/strong><\/em><\/p>\n\n\n\n<p>Nejedn\u00e1 sa u\u017e o jednotliv\u00e9 servery ale o cel\u00e9 stacky, ktor\u00e9 sa skladaj\u00fa z nieko\u013ek\u00fdch serverov v r\u00f4znych \u00faloh\u00e1ch. Ka\u017edop\u00e1dne kostru infra\u0161trukt\u00fary tvoria siln\u00e9 stacky v prim\u00e1rnych datacentr\u00e1ch na\u0161ej hostingov\u00e9 skupiny (v CEE a Nordics), kde je \u0161pi\u010dkov\u00e1 konektivita a tie\u017e tzv. scrubbing (syst\u00e9my filtruj\u00face DDoS \u00fatoky). \u010ealej ich dop\u013a\u0148aj\u00fa men\u0161ie stacky hostovan\u00e9 mimo Eur\u00f3py, ktor\u00fdch lokality vytipov\u00e1v\u00e1me z re\u00e1lnej prev\u00e1dzky a re\u00e1lnych \u00fatokov &#8211; s oh\u013eadom na minimaliz\u00e1ciu latencie a \u010do najv\u00e4\u010d\u0161ie pribl\u00ed\u017eenie sa zdrojom \u00fatokov, ktor\u00e9 si potom tieto vzdialen\u00e9 stacky stiahnu na seba.<\/p>\n\n\n\n<p><em><strong>\u010co si pod t\u00fdm re\u00e1lne m\u00f4\u017eeme predstavi\u0165 &#8211;&nbsp; s\u00fa to fyzick\u00e9 servery, virtu\u00e1lne servery, alebo distribuovan\u00e9 slu\u017eby?<\/strong><\/em><\/p>\n\n\n\n<p>Jednotliv\u00e9 stacky sa svojou ve\u013ekos\u0165ou l\u00ed\u0161ia. Tie v\u00e4\u010d\u0161ie sa skladaj\u00fa z nieko\u013ek\u00fdch fyzick\u00fdch serverov v r\u00f4znych \u00faloh\u00e1ch sa silnou konektivitou, tie najmen\u0161ie vyu\u017e\u00edvaj\u00fa jeden fyzick\u00fd server s virtualiz\u00e1ciou.<\/p>\n\n\n\n<p><em><strong>Zmenilo sa nie\u010do pre na\u0161e datacentr\u00e1?<\/strong><\/em><\/p>\n\n\n\n<p>Sn\u00e1\u010f len d\u00f4raz na siln\u00fa konektivitu a kvalitn\u00fd scrubbing (filtrovanie DDoS \u00fatokov).<\/p>\n\n\n\n<p><em><strong>\u010co nov\u00e1 DNS infra\u0161trukt\u00fara a konkurencia v regi\u00f3ne? Vyu\u017e\u00edva niekto podobn\u00e9 rie\u0161enie?<\/strong><\/em><\/p>\n\n\n\n<p>Nie sme prv\u00ed, kto v CEE regi\u00f3ne vyu\u017e\u00edva IP anycast, ale tr\u00fafam si tvrdi\u0165, \u017ee sme jedin\u00ed, kto buduje takto rozsiahlu a robustn\u00fa infra\u0161trukt\u00faru schopn\u00fa serv\u00edrova\u0165 a\u017e 5 mili\u00f3nov DNS z\u00f3n (tj. 5 mili\u00f3nov z\u00e1kazn\u00edckych dom\u00e9n).<\/p>\n\n\n\n<p><em><strong>Odkedy je nov\u00e1 DNS infra\u0161trukt\u00fara v prev\u00e1dzke a pre koho je dostupn\u00e1?<\/strong><\/em><\/p>\n\n\n\n<p>DNS infra\u0161trukt\u00faru uv\u00e1dzame do produkcie postupne. Prv\u00e1 sa dotkne terci\u00e1lneho DNS serveru NS3 (ns3.websupport.cz\/hu\/sk, resp. ns3.webonic.hu) a to v polovici okt\u00f3bra 2021. V priebehu jesene je v pl\u00e1ne vybudova\u0165 \u010fal\u0161ie dva stacky a prepn\u00fa\u0165 na nov\u00fa infra\u0161trukt\u00faru tie\u017e NS2. Ako posledn\u00fd pr\u00edde na rad NS1 potom, \u010do bude pridan\u00fd \u010fal\u0161\u00ed siln\u00fd stack. \u010eal\u0161\u00ed rozvoj infra\u0161trukt\u00fary v roku 2022 aktu\u00e1lne pl\u00e1nujeme &#8211; overujeme dostupnos\u0165 u\u017e postavenej infra\u0161trukt\u00fary z cel\u00e9ho sveta a pod\u013ea toho vytipov\u00e1vame lokality pre \u010fal\u0161ie stacky.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.websupport.sk\/kariera\/senior-linux-administrator\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1100\" height=\"550\" src=\"https:\/\/www.websupport.sk\/blogoads\/sites\/2\/2021\/11\/senior-linux-admin_websupport-1-1100x550.png\" alt=\"\" class=\"wp-image-25811\" srcset=\"https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/11\/senior-linux-admin_websupport-1-1100x550.png 1100w, https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/11\/senior-linux-admin_websupport-1-300x150.png 300w, https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/11\/senior-linux-admin_websupport-1-768x384.png 768w, https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/11\/senior-linux-admin_websupport-1-1200x600.png 1200w, https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/11\/senior-linux-admin_websupport-1.png 1400w\" sizes=\"auto, (max-width: 1100px) 100vw, 1100px\" \/><\/a><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Webhosting nie je len o hostingoch a dom\u00e9nach. Aby v\u0161etky tieto slu\u017eby mohli be\u017ea\u0165 e\u0161te lep\u0161ie a stabilnej\u0161ie, pripravujeme nov\u00fa infra\u0161trukt\u00faru pre DNS slu\u017eby. Vrav\u00edte si, \u017ee v\u00e1s ako z\u00e1kazn\u00edka\/z\u00e1kazn\u00ed\u010dky sa to net\u00fdka? Po\u010fte sa dozvedie\u0165, \u010do v\u0161etko touto inov\u00e1ciou z\u00edskate. Rozpr\u00e1vali sme sa s jedn\u00fdm z k\u013e\u00fa\u010dov\u00fdch \u013eud\u00ed, ktor\u00ed za touto zmenou stoja &#8211; [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":25316,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,2858,11],"tags":[3305,2975,1206,3326,3323,3317,3320,3308],"class_list":["post-25307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novinky","category-profesional","category-zakulisie","tag-ddos","tag-dns","tag-infrastruktura","tag-ip-anycast","tag-monitoring","tag-stacky","tag-testovanie","tag-utoky"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nasadzujeme nov\u00fd \u0161t\u00edt proti DDoS \u00fatokom - Websupport blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.sk\/blog\/2021\/09\/nasadzujeme-novy-stit-proti-ddos-utokom\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nasadzujeme nov\u00fd \u0161t\u00edt proti DDoS \u00fatokom - Websupport blog\" \/>\n<meta property=\"og:description\" content=\"Webhosting nie je len o hostingoch a dom\u00e9nach. Aby v\u0161etky tieto slu\u017eby mohli be\u017ea\u0165 e\u0161te lep\u0161ie a stabilnej\u0161ie, pripravujeme nov\u00fa infra\u0161trukt\u00faru pre DNS slu\u017eby. Vrav\u00edte si, \u017ee v\u00e1s ako z\u00e1kazn\u00edka\/z\u00e1kazn\u00ed\u010dky sa to net\u00fdka? Po\u010fte sa dozvedie\u0165, \u010do v\u0161etko touto inov\u00e1ciou z\u00edskate. Rozpr\u00e1vali sme sa s jedn\u00fdm z k\u013e\u00fa\u010dov\u00fdch \u013eud\u00ed, ktor\u00ed za touto zmenou stoja &#8211; [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.websupport.sk\/blog\/2021\/09\/nasadzujeme-novy-stit-proti-ddos-utokom\/\" \/>\n<meta property=\"og:site_name\" content=\"Websupport blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-09-28T05:27:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-11T20:08:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/09\/Predstavujeme-novu-DNS-infrastrukturu_1920x1080_TEXT_SK.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"T\u00edm Websupport\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.websupport.sk\/blog\/app\/uploads\/sites\/2\/2021\/09\/Predstavujeme-novu-DNS-infrastrukturu_1920x1080_TEXT_SK.png\" \/>\n<meta name=\"twitter:label1\" content=\"Autor\" \/>\n\t<meta name=\"twitter:data1\" content=\"T\u00edm Websupport\" \/>\n\t<meta name=\"twitter:label2\" content=\"Predpokladan\u00fd \u010das \u010d\u00edtania\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 min\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/\"},\"author\":{\"name\":\"T\u00edm Websupport\",\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/#\\\/schema\\\/person\\\/d3f3517a180f66130801edb710ffb6b3\"},\"headline\":\"Nasadzujeme nov\u00fd \u0161t\u00edt proti DDoS \u00fatokom\",\"datePublished\":\"2021-09-28T05:27:22+00:00\",\"dateModified\":\"2025-03-11T20:08:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/\"},\"wordCount\":1825,\"commentCount\":6,\"publisher\":{\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/app\\\/uploads\\\/sites\\\/2\\\/2021\\\/09\\\/Predstavujeme-novu-DNS-infrastrukturu_1920x1080.png\",\"keywords\":[\"DDoS\",\"dns\",\"infrastruktura\",\"IP anycast\",\"monitoring\",\"stacky\",\"testovanie\",\"utoky\"],\"articleSection\":[\"Novinky\",\"Pre profesion\u00e1lov\",\"Z\u00e1kulisie\"],\"inLanguage\":\"sk-SK\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/\",\"url\":\"https:\\\/\\\/www.websupport.sk\\\/blog\\\/2021\\\/09\\\/nasadzujeme-novy-stit-proti-ddos-utokom\\\/\",\"name\":\"Nasadzujeme nov\u00fd \u0161t\u00edt proti DDoS \u00fatokom - 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Aby v\u0161etky tieto slu\u017eby mohli be\u017ea\u0165 e\u0161te lep\u0161ie a stabilnej\u0161ie, pripravujeme nov\u00fa infra\u0161trukt\u00faru pre DNS slu\u017eby. Vrav\u00edte si, \u017ee v\u00e1s ako z\u00e1kazn\u00edka\/z\u00e1kazn\u00ed\u010dky sa to net\u00fdka? Po\u010fte sa dozvedie\u0165, \u010do v\u0161etko touto inov\u00e1ciou z\u00edskate. 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