{"id":99198,"date":"2021-02-19T10:22:43","date_gmt":"2021-02-19T08:22:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-dns-server-bind-dobavlena-eksperimentalnaya-podderzhka-dns-over-https"},"modified":"2021-02-19T10:22:43","modified_gmt":"2021-02-19T08:22:43","slug":"v-dns-server-bind-dobavlena-eksperimentalnaya-podderzhka-dns-over-https","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/v-dns-server-bind-dobavlena-eksperimentalnaya-podderzhka-dns-over-https","title":{"rendered":"V DNS stre\u017eniku BIND je bila dodana eksperimentalna podpora za DNS-over-HTTPS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 BIND \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 \u043e \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0432 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0443\u044e \u0432\u0435\u0442\u043a\u0443 9.17 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 «DNS \u043f\u043e\u0432\u0435\u0440\u0445 HTTPS» (DoH, DNS over HTTPS) \u0438 DNS \u043f\u043e\u0432\u0435\u0440\u0445 TLS (DoT, DNS over TLS), \u0430 \u0442\u0430\u043a\u0436\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 XFR-over-TLS \u0434\u043b\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e DNS-\u0437\u043e\u043d \u043c\u0435\u0436\u0434\u0443 \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u043c\u0438. DoH \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0434\u043b\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 9.17.10, \u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 DoT \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 9.17.7. \u041f\u043e\u0441\u043b\u0435 \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 DoT \u0438 DoH \u0431\u0443\u0434\u0435\u0442 \u0431\u044d\u043a\u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u0432 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u0443\u044e \u0432\u0435\u0442\u043a\u0443 9.16. <\/p>\n

Implementacija protokola HTTP\/2, ki se uporablja v DoH, temelji na uporabi knji\u017enice nghttp2, ki je vklju\u010dena med gradbene odvisnosti (v prihodnje se na\u010drtuje prenos te knji\u017enice med neobvezne odvisnosti). Podpirajo se tako \u0161ifrirane (TLS) kot nezahtevene povezave preko HTTP\/2. Pri ustreznih nastavitvah en proces named zdaj lahko obravnava ne le tradicionalne DNS poizvedbe, temve\u010d tudi poizvedbe, poslane z uporabo DoH (DNS-over-HTTPS) in DoT (DNS-over-TLS). Podpora HTTPS na strani odjemalca (dig) zaenkrat \u0161e ni realizirana. Podpora XFR-over-TLS je na voljo tako za prihajajo\u010de kot za odhajajo\u010de poizvedbe. <\/p>\n

\u041e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c DoH \u0438 DoT \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u043f\u0446\u0438\u0439 http \u0438 tls \u0432 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u0435 listen-on. \u0414\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u043d\u0435\u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e DNS-over-HTTP \u0432 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u0445 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0443\u043a\u0430\u0437\u0430\u0442\u044c «tls none». \u041a\u043b\u044e\u0447\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0442\u0441\u044f \u0432 \u0441\u0435\u043a\u0446\u0438\u0438 «tls». \u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0435 \u0441\u0435\u0442\u0435\u0432\u044b\u0435 \u043f\u043e\u0440\u0442\u044b 853 \u0434\u043b\u044f DoT, 443 \u0434\u043b\u044f DoH \u0438 80 \u0434\u043b\u044f DNS-over-HTTP \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u043f\u0435\u0440\u0435\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u044b \u0447\u0435\u0440\u0435\u0437 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b tls-port, https-port \u0438 http-port. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440: tls local-tls { key-file «\/path\/to\/priv_key.pem»; cert-file «\/path\/to\/cert_chain.pem»; }; http local-http-server { endpoints { «\/dns-query»; }; }; options { https-port 443; listen-on port 443 tls local-tls http myserver {any;}; } <\/p>\n

Med zna\u010dilnostmi implementacije DoH v BIND je omenjeno, da se integrira kot splo\u0161ni transport, ki se lahko uporablja ne le za obdelavo poizvedb strank k resolverju, temve\u010d tudi pri izmenjavi podatkov med stre\u017eniki, prenosu con s strani avtoritativnega DNS stre\u017enika ter pri obdelavi vseh poizvedb, ki jih podpirajo drugi transporti DNS. <\/p>\n

Druga zna\u010dajka je mogu\u0107nost premje\u0161tanja operacija \u0161ifriranja za TLS na drugi poslu\u017eitelj, \u0161to mo\u017ee biti potrebno kada se TLS certifikati pohranjuju na drugom sustavu (na primjer, u infrastrukturi s web poslu\u017eiteljima) i upravlja im drugi osoblje. Podr\u0161ka za neza\u0161ti\u0107eni DNS-over-HTTP implementirana je za pojednostavljenje debuggiranja i kao sloj za prijenos unutar mre\u017ee, na temelju kojeg se mo\u017ee organizirati \u0161ifriranje na drugom poslu\u017eitelju. Na vanjskom poslu\u017eitelju za formiranje TLS prometa mo\u017ee se koristiti nginx, sli\u010dno na\u010dinu na koji se organizira obvezivanje HTTPS za web stranice. <\/p>\n

Podsje\u0107amo da DNS-over-HTTPS mo\u017ee biti koristan za isklju\u010divanje curenja informacija o tra\u017eenim nazivima poslu\u017eitelja putem DNS poslu\u017eitelja pru\u017eatelja usluga, borbu protiv MITM napada i zamjene DNS prometa (na primjer, prilikom povezivanja na javne Wi-Fi mre\u017ee), te protiv blokada na razini DNS (DNS-over-HTTPS ne mo\u017ee zamijeniti VPN<\/a> u podru\u010dju zaobila\u017eenja blokada, implementiranih na razini DPI) ili za organizaciju rada kada nije mogu\u0107e izravno pristupiti DNS poslu\u017eiteljima (na primjer, prilikom rada putem proxyja). Ako se u uobi\u010dajenom scenariju DNS upiti izravno \u0161alju na odre\u0111ene DNS poslu\u017eitelje navedene u konfiguraciji sustava, tada se u slu\u010daju DNS-over-HTTPS upit za odre\u0111ivanje IP-naslove<\/a> naziva ugra\u0111uje u HTTPS promet i \u0161alje na HTTP poslu\u017eitelj, gdje resolver obra\u0111uje upite putem Web API-ja. <\/p>\n

\u201eDNS over TLS\u201c se razlikuje od \u201eDNS over HTTPS\u201c primenom standardnog DNS protokola (obi\u010dno se koristi mre\u017eni port 853), umotanog u enkriptovanu komunikaciju organizovanu putem TLS protokola uz validaciju hosta preko TLS\/SSL sertifikata, koji je potvrdila sertifikaciona agencija. Postoje\u0107i standard DNSSEC koristi enkripciju samo za autentifikaciju klijenta i servera, ali ne \u0161titi saobra\u0107aj od presretanja i ne garantuje poverljivost zahteva.
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 BIND \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 \u043e \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0432 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0443\u044e \u0432\u0435\u0442\u043a\u0443 9.17 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 «DNS \u043f\u043e\u0432\u0435\u0440\u0445 HTTPS» (DoH, DNS over HTTPS) \u0438 DNS \u043f\u043e\u0432\u0435\u0440\u0445 TLS (DoT, DNS over TLS), \u0430 \u0442\u0430\u043a\u0436\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 XFR-over-TLS \u0434\u043b\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e DNS-\u0437\u043e\u043d \u043c\u0435\u0436\u0434\u0443 \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u043c\u0438. DoH \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0434\u043b\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 9.17.10, \u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 DoT \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 9.17.7. […]<\/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":[702],"tags":[],"class_list":["post-99198","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47Eksperimentalna podr\u0161ka za DNS-over-HTTPS dodana je u DNS poslu\u017eitelj BIND | ProHoster","description":"Razvija\u010di DNS poslu\u017eitelja BIND najavili su dodavanje podr\u0161ke za tehnologije \"DNS preko HTTPS\" (DoH, DNS over HTTPS) i DNS preko TLS (DoT, DNS over TLS) u eksperimentalnu granu 9.17, kao 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