{"id":36652,"date":"2019-10-31T22:12:57","date_gmt":"2019-10-31T19:12:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/lyubit-i-ne-lyubit-dns-over-https\/"},"modified":"2019-10-31T22:12:57","modified_gmt":"2019-10-31T19:12:57","slug":"lyubit-i-ne-lyubit-dns-over-https","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/administrirovanie\/lyubit-i-ne-lyubit-dns-over-https","title":{"rendered":"\u201eLubi i nie lubi\u201d: DNS over HTTPS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Analizujemy opinie na temat w\u0142a\u015bciwo\u015bci dzia\u0142ania DNS over HTTPS, kt\u00f3re ostatnio sta\u0142o si\u0119 \"jab\u0142kiem niezgody\" w\u015br\u00f3d dostawc\u00f3w Internetu i tw\u00f3rc\u00f3w przegl\u0105darek.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/vasexperts\/blog\/461431\/\"><img decoding=\"async\" alt=\"\u201eLubi i nie lubi\u201d: DNS over HTTPS\" src=\"\/wp-content\/uploads\/2019\/07\/56e79a71ff1fb4c89cc60779cd248fcd.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>\/ Unsplash \/ <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/NPKk_3ZK2DY\">Steve Halama<\/a><\/noindex><\/i><\/p>\n<h2>Istota nieporozumie\u0144<\/h2>\n<p>\nOstatnio <noindex><a rel=\"nofollow\" href=\"https:\/\/www.forbes.com\/sites\/zakdoffman\/2019\/07\/05\/mozilla-slammed-as-internet-villain-for-letting-children-visit-banned-websites\/\">du\u017ce media<\/a><\/noindex> i <noindex><a rel=\"nofollow\" href=\"https:\/\/www.reddit.com\/r\/news\/comments\/bhn8hn\/dns_over_https_is_coming_whether_isps_and\/\">portale bran\u017cowe<\/a><\/noindex> (w tym Habr), cz\u0119sto pisz\u0105 o protokole DNS over HTTPS (DoH). Szyfruje on zapytania do serwera DNS oraz odpowiedzi na nie. Takie podej\u015bcie pozwala ukry\u0107 nazwy host\u00f3w, do kt\u00f3rych odwo\u0142uje si\u0119 u\u017cytkownik. Z publikacji mo\u017cna wywnioskowa\u0107, \u017ce nowy protok\u00f3\u0142 (zatwierdzony przez IETF <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc8484\">w 2018 roku) podzieli\u0142 spo\u0142eczno\u015b\u0107 IT na dwa obozy.<\/a><\/noindex> Jedna po\u0142owa uwa\u017ca, \u017ce nowy protok\u00f3\u0142 zwi\u0119kszy bezpiecze\u0144stwo Internetu i wdra\u017ca go w swoich aplikacjach i us\u0142ugach. Druga po\u0142owa jest przekonana, \u017ce technologia tylko komplikuje prac\u0119 administrator\u00f3w system\u00f3w. Nast\u0119pnie przeanalizujemy argumenty obu stron.<\/p>\n<p>Jak dzia\u0142a DoH <\/p>\n<h2>Zanim przejdziemy do rozmowy o tym, dlaczego dostawcy Internetu i inni uczestnicy rynku opowiadaj\u0105 si\u0119 za lub przeciw DNS over HTTPS, kr\u00f3tko om\u00f3wimy zasady jego dzia\u0142ania.<\/h2>\n<p>\nW przypadku DoH zapytanie o okre\u015blenie adresu IP jest inkapsulowane w ruchu HTTPS. Nast\u0119pnie trafia do serwera HTTP, gdzie jest przetwarzane za pomoc\u0105 API. Oto przyk\u0142ad zapytania z RFC 8484 (<\/p>\n<p>str.6<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc8484\">:method = GET\n   :scheme = https\n   :authority = dnsserver.example.net\n   :path = \/dns-query?\n           dns=AAABAAABAAAAAAAAAWE-NjJjaGFyYWN0ZXJsYWJl\n           bC1tYWtlcy1iYXNlNjR1cmwtZGlzdGluY3QtZnJvbS1z\n           dGFuZGFyZC1iYXNlNjQHZXhhbXBsZQNjb20AAAEAAQ\n   accept = application\/dns-message<\/a><\/noindex>):<\/p>\n<pre><code class=\"bash\">   W ten spos\u00f3b ruch DNS jest ukryty w ruchu HTTPS. Klient i serwer komunikuj\u0105 si\u0119 przez standardowy port 443. W rezultacie zapytania do systemu nazw domen pozostaj\u0105 anonimowe.\n<\/code><\/pre>\n<p>\nDlaczego nie jest lubiany<\/p>\n<h2>Przeciwnicy DNS over HTTPS<\/h2>\n<p>\n, \u017ce nowy protok\u00f3\u0142 obni\u017cy bezpiecze\u0144stwo po\u0142\u0105cze\u0144. Zgodnie z <noindex><a rel=\"nofollow\" href=\"https:\/\/www.theregister.co.uk\/2018\/10\/30\/dns_over_https_controversy\/\">m\u00f3wi\u0105<\/a><\/noindex>Paula Vixie, cz\u0142onka zespo\u0142u deweloper\u00f3w DNS, administratorzy b\u0119d\u0105 mieli trudniej blokowa\u0107 potencjalnie szkodliwe strony. Zwykli u\u017cytkownicy strac\u0105 przy tym mo\u017cliwo\u015b\u0107 skonfigurowania tzw. kontroli rodzicielskiej w przegl\u0105darkach. <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/paulvixie\/status\/1053765281917661184\">s\u0142owami<\/a><\/noindex> Zdanie Paula podzielaj\u0105 dostawcy Internetu w Wielkiej Brytanii. Prawo tego kraju<\/p>\n<p>nakazuje <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Web_blocking_in_the_United_Kingdom\">im blokowa\u0107 zasoby z zabronion\u0105 tre\u015bci\u0105. Jednak wsparcie dla DoH w przegl\u0105darkach komplikuje zadanie filtrowania ruchu. W\u015br\u00f3d krytyk\u00f3w nowego protoko\u0142u znajduj\u0105 si\u0119 r\u00f3wnie\u017c Centrum rz\u0105dowej komunikacji Anglii (<\/a><\/noindex> GCHQ<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A6%D0%B5%D0%BD%D1%82%D1%80_%D0%BF%D1%80%D0%B0%D0%B2%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B9_%D1%81%D0%B2%D1%8F%D0%B7%D0%B8\">) oraz fundacja Internet Watch Foundation (<\/a><\/noindex>IWF<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Internet_Watch_Foundation\">), kt\u00f3ra prowadzi rejestr zablokowanych zasob\u00f3w.<\/a><\/noindex>Na naszym blogu na Habrze:<\/p>\n<blockquote><p><b>Na naszym blogu na Habra:<\/b><\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/vasexperts\/blog\/457106\/\">Wojna z robotami dzwoni\u0105cymi w USA \u2014 kto wygrywa i dlaczego<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/vasexperts\/blog\/452312\/\">Brytyjskie telekomy b\u0119d\u0105 wyp\u0142aca\u0107 abonentom odszkodowania za przerwy w po\u0142\u0105czeniach<\/a><\/noindex><\/li>\n<\/ul>\n<\/blockquote>\n<p>\nEksperci zauwa\u017caj\u0105, \u017ce DNS over HTTPS mo\u017ce sta\u0107 si\u0119 zagro\u017ceniem dla cyberbezpiecze\u0144stwa. Na pocz\u0105tku lipca specjali\u015bci ds. bezpiecze\u0144stwa z Netlab <noindex><a rel=\"nofollow\" href=\"https:\/\/www.zdnet.com\/article\/first-ever-malware-strain-spotted-abusing-new-doh-dns-over-https-protocol\/\">odkryli<\/a><\/noindex> zidentyfikowali pierwszy wirus, kt\u00f3ry wykorzysta\u0142 nowy protok\u00f3\u0142 do przeprowadzania atak\u00f3w DDoS \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.netlab.360.com\/an-analysis-of-godlua-backdoor-en\/\">Godlua<\/a><\/noindex>. Z\u0142o\u015bliwe oprogramowanie korzysta\u0142o z DoH, aby uzyska\u0107 rekordy tekstowe (TXT) i wyodr\u0119bni\u0107 adresy URL serwer\u00f3w kontrolnych.<\/p>\n<p>Szyfrowane zapytania DoH nie by\u0142y rozpoznawane przez oprogramowanie antywirusowe. Specjali\u015bci ds. bezpiecze\u0144stwa <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/GossiTheDog\/status\/1146138461969244160\">obawiaj\u0105 si\u0119<\/a><\/noindex>, \u017ce po Godlua przyjd\u0105 inne z\u0142o\u015bliwe oprogramowania, niewidoczne dla pasywnego monitorowania DNS.<\/p>\n<h2>Jednak nie wszyscy s\u0105 przeciwni<\/h2>\n<p>\nW obronie DNS over HTTPS w swoim blogu <noindex><a rel=\"nofollow\" href=\"https:\/\/www.potaroo.net\/ispcol\/2018-10\/doh.html\">wypowiedzia\u0142 si\u0119<\/a><\/noindex> in\u017cynier z APNIC Geoff Houston. Wed\u0142ug niego nowy protok\u00f3\u0142 pozwoli w walce z atakami DNS hijacking, kt\u00f3re ostatnio staj\u0105 si\u0119 coraz bardziej powszechne. Faktem tym <noindex><a rel=\"nofollow\" href=\"https:\/\/arstechnica.com\/information-technology\/2019\/01\/a-dns-hijacking-wave-is-targeting-companies-at-an-almost-unprecedented-scale\/\">potwierdza<\/a><\/noindex> styczniowy raport firmy FireEye zajmuj\u0105cej si\u0119 bezpiecze\u0144stwem. Rozw\u00f3j protoko\u0142u wspar\u0142y r\u00f3wnie\u017c du\u017ce firmy IT.<\/p>\n<p>Ju\u017c na pocz\u0105tku zesz\u0142ego roku DoH zacz\u0119\u0142o by\u0107 testowane w Google. Miesi\u0105c temu firma <noindex><a rel=\"nofollow\" href=\"http:\/\/www.googblogs.com\/google-public-dns-over-https-doh-supports-rfc-8484-standard\/\">przedstawi\u0142a<\/a><\/noindex> og\u0142osi\u0142a wersj\u0119 General Availability swojego serwisu DoH. W Google <noindex><a rel=\"nofollow\" href=\"https:\/\/threatpost.com\/google-announces-dns-over-https-general-availability\/146057\/\">maj\u0105 nadziej\u0119<\/a><\/noindex>, \u017ce zwi\u0119kszy on bezpiecze\u0144stwo danych osobowych w sieci i ochroni przed atakami MITM.<\/p>\n<p>Inny tw\u00f3rca przegl\u0105darek \u2014 Mozilla \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.nightly.mozilla.org\/2018\/06\/01\/improving-dns-privacy-in-firefox\/\">wspiera<\/a><\/noindex>\u00a0wprowadzi\u0142a DNS over HTTPS latem ubieg\u0142ego roku. R\u00f3wnocze\u015bnie firma aktywnie promuje now\u0105 technologi\u0119 w \u015brodowisku IT. Za to stowarzyszenie dostawc\u00f3w Internet Services Providers Association (ISPA) <noindex><a rel=\"nofollow\" href=\"https:\/\/www.zdnet.com\/article\/uk-isp-group-names-mozilla-internet-villain-for-supporting-dns-over-https\/\">nawet nominowa\u0142o<\/a><\/noindex> Mozill\u0119 do nagrody \u201ez\u0142oczy\u0144ca internetu roku\u201d. W odpowiedzi przedstawiciele firmy <noindex><a rel=\"nofollow\" href=\"https:\/\/www.forbes.com\/sites\/zakdoffman\/2019\/07\/05\/mozilla-slammed-as-internet-villain-for-letting-children-visit-banned-websites\/\">zauwa\u017cyli<\/a><\/noindex>, \u017ce s\u0105 rozczarowani niech\u0119ci\u0105 operator\u00f3w do ulepszania przestarza\u0142ej infrastruktury internetowej.<\/p>\n<p><img decoding=\"async\" alt=\"\u201eLubi i nie lubi\u201d: DNS over HTTPS\" src=\"\/wp-content\/uploads\/2019\/07\/611a1f2d8248e7d61b969c71e5f14d31.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>\/ Unsplash \/ <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/MyzdAXPgr_8\">TETrebbien<\/a><\/noindex><\/i><\/p>\n<p>W obronie Mozilli <noindex><a rel=\"nofollow\" href=\"https:\/\/www.theregister.co.uk\/2019\/07\/12\/ispa_hands_awards_to_bt_and_openreach_following_mozilla_gaffe\/\">opowiedzia\u0142y si\u0119 du\u017ce media<\/a><\/noindex> i niekt\u00f3rzy dostawcy internetowi. W szczeg\u00f3lno\u015bci w British Telecom <noindex><a rel=\"nofollow\" href=\"https:\/\/www.icann.org\/sites\/default\/files\/packages\/ids-2019\/08-fidler-icann-dns-symposium-a-uk-isp-view-on-doh-issue-11may19-en.pdf\">uwa\u017caj\u0105<\/a><\/noindex>, \u017ce nowy protok\u00f3\u0142 nie wp\u0142ynie na filtrowanie tre\u015bci i zwi\u0119kszy bezpiecze\u0144stwo brytyjskich u\u017cytkownik\u00f3w. Pod wp\u0142ywem opinii publicznej ISPA <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ispa.org.uk\/ispa-withdraws-mozilla-internet-villain-nomination-and-category\/\">musia\u0142o wycofa\u0107<\/a><\/noindex> nominacj\u0119 \u201ez\u0142oczy\u0144cy\u201d.<\/p>\n<p>R\u00f3wnie\u017c za wprowadzeniem DNS over HTTPS opowiedzia\u0142y si\u0119 chmurowe firmy, na przyk\u0142ad <noindex><a rel=\"nofollow\" href=\"https:\/\/www.zdnet.com\/article\/how-to-enable-dns-over-https-doh-in-firefox\/\">Cloudflare<\/a><\/noindex>. Ju\u017c oferuj\u0105 us\u0142ugi DNS oparte na nowym protokole. Pe\u0142na lista przegl\u0105darek i klient\u00f3w wspieraj\u0105cych DoH dost\u0119pna jest na\u00a0<noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/curl\/curl\/wiki\/DNS-over-HTTPS\">GitHub<\/a><\/noindex>.<\/p>\n<p>W ka\u017cdym razie nie mo\u017cna jeszcze m\u00f3wi\u0107 o zako\u0144czeniu sporu dw\u00f3ch oboz\u00f3w. Specjali\u015bci IT prognozuj\u0105, \u017ce je\u015bli DNS over HTTPS ma sta\u0107 si\u0119 cz\u0119\u015bci\u0105 masowego stosu technologii internetowych, to proces ten zajmie <noindex><a rel=\"nofollow\" href=\"https:\/\/packetpushers.net\/response-doh-dns-over-https-explained-apnic-blog\/\">niejedno dziesi\u0119ciolecie<\/a><\/noindex>.<\/p>\n<blockquote><p><b>O czym jeszcze piszemy na naszym firmowym blogu:<\/b><\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/vasexperts.ru\/blog\/seti\/kak-postroena-set-internet-provajdera\/\">Jak zbudowana jest sie\u0107 dostawcy internetu<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/vasexperts.ru\/blog\/seti\/osnovnye-servisy-v-setyax-internet-provajdera\/\">Podstawowe us\u0142ugi w sieciach dostawcy internetu<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/vasexperts.ru\/blog\/telekom\/konvergenciya-i-unifikaciya-neskolko-zadach-na-odnom-ustrojstve\/\">Konwergencja i unifikacja \u2014 kilka zada\u0144 na jednym urz\u0105dzeniu<\/a><\/noindex><\/li>\n<\/ul>\n<\/blockquote>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/vasexperts\/blog\/461431\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0431\u0438\u0440\u0430\u0435\u043c \u043c\u043d\u0435\u043d\u0438\u044f \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u044b DNS over HTTPS, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0437\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0441\u0442\u0430\u043b\u0438 \u00ab\u044f\u0431\u043b\u043e\u043a\u043e\u043c \u0440\u0430\u0437\u0434\u043e\u0440\u0430\u00bb \u0441\u0440\u0435\u0434\u0438 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442-\u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u043e\u0432 \u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u043e\u0432. \/ Unsplash \/ Steve Halama \u0421\u0443\u0442\u044c \u0440\u0430\u0437\u043d\u043e\u0433\u043b\u0430\u0441\u0438\u0439 \u0412 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043a\u0440\u0443\u043f\u043d\u044b\u0435 \u0421\u041c\u0418 \u0438 \u0442\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u043b\u043e\u0449\u0430\u0434\u043a\u0438 (\u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0425\u0430\u0431\u0440), \u0447\u0430\u0441\u0442\u043e \u043f\u0438\u0448\u0443\u0442 \u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0435 DNS over HTTPS (DoH). \u041e\u043d \u0448\u0438\u0444\u0440\u0443\u0435\u0442 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a 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