Imiba eyahlukeneyo yokusebenza kwe-DNS sele ichukunyiswe ngokuphindaphindiweyo ngumbhali kwinani le ipapashwe njengenxalenye yebhlog. Ngelo xesha, ugxininiso oluphambili luhlala luphucula ukhuseleko lwale nkonzo ye-Intanethi ephambili.
Kuze kube kutshanje, nangona ubuthathaka obucacileyo be-DNS traffic, esele, ubukhulu becala, idluliselwe ngokucacileyo, kwizenzo ezinobungozi kwicala lababoneleli abafuna ukunyusa umvuzo wabo ngokufaka intengiso kumxholo, ii-arhente zokhuseleko zikarhulumente kunye nokuhlolwa, ngokunjalo nabaphuli-mthetho nje, inkqubo , nangona ubukho bezobuchwepheshe ezahlukeneyo ezifana ne-DNSSEC / DANE, i-DNScrypt, i-DNS-over-TLS kunye ne-DNS-over-HTTPS, imisiwe. Kwaye ukuba izisombululo zeseva, kwaye ezinye zazo zikhona ixesha elide, zaziwa ngokubanzi kwaye ziyafumaneka, inkxaso yazo evela kwisoftware yomxhasi ishiya okuninzi ekufuneka ifunwa.
Ngethamsanqa, imeko iyatshintsha. Ngokukodwa, abaphuhlisi besikhangeli esidumileyo seFirefox malunga nezicwangciso zokwenza imo yenkxaso isebenze ngokungagqibekanga (DoH) kungekudala. Oku kufuneka kuncede ukukhusela itrafikhi ye-DNS yomsebenzisi we-WWW kwezi zoyikiso zingasentla, kodwa kunokwazisa ezintsha.
1. Iingxaki ze-DNS-over-HTTPS
Ukuqala nje kokubona, ukuqaliswa kwe-DNS-over-HTTPS kwisoftware ye-Intanethi kubangela ukusabela okuhle kuphela. Nangona kunjalo, umtyholi, njengoko bethetha, ukwiinkcukacha.
Ingxaki yokuqala ethintela umda wosetyenziso olunabileyo lwe-DoH kukugxila kwayo kuphela kwi-web traffic. Ngokwenene, iprotocol ye-HTTP kunye noshicilelo lwayo lwangoku lwe-HTTP/2, apho i-DoH isekelwe khona, sisiseko seWWW. Kodwa i-intanethi ayikho nje iwebhu. Kukho iinkonzo ezininzi ezidumileyo, ezifana ne-imeyile, abathunywa abahlukeneyo abakhawulezayo, iinkqubo zokudlulisa iifayile, ukusasazwa kwemultimedia, njl., ezingasebenzisi i-HTTP. Yiyo ke loo nto, ngaphandle kwembono yoninzi lwe-DoH njenge-panacea, ifumaniseke ingasebenzi ngaphandle komzamo owongezelelweyo (kunye nokungeyomfuneko) kuyo nantoni na ngaphandle kobuchwepheshe besikhangeli. Ngendlela, i-DNS-over-TLS ijongeka njengomgqatswa ofaneleke ngakumbi kule ndima, ephumeza i-encapsulation ye-traffic ye-DNS eqhelekileyo kwi-protocol ye-TLS ekhuselekileyo.
Ingxaki yesibini, enokuthi ibaluleke ngakumbi kuneyokuqala, kukulahlwa kokwabiwa kwe-DNS ngokwendalo ngoyilo kulungiselelwa ukusebenzisa iseva ye-DoH enye echazwe kwiseto lomkhangeli zincwadi. Ngokukodwa, iMozilla icebisa ukusebenzisa inkonzo evela kwi-Cloudflare. Inkonzo efanayo yasungulwa nangabanye abantu ababalaseleyo kwi-Intanethi, ngakumbi uGoogle. Kuvela ukuba ukuphunyezwa kwe-DNS-over-HTTPS kwifom ecetywayo ngoku kwandisa kuphela ukuxhomekeka kwabasebenzisi bokugqibela kwiinkonzo ezinkulu. Akusiyo imfihlo ukuba ulwazi olunokuthi uhlalutyo lwemibuzo ye-DNS lunokuqokelela ngakumbi idatha malunga nayo, kunye nokwandisa ukuchaneka kwayo kunye nokufaneleka.
Kulo mba, umbhali wayekho kwaye uhlala engumxhasi wokuphunyezwa kobuninzi kungekhona kwe-DNS-over-HTTPS, kodwa ye-DNS-over-TLS kunye ne-DNSSEC / DANE njengendawo yendalo yonke, ekhuselekileyo kwaye engafanelekanga ukuqhubela phambili kwi-intanethi ye-Intanethi. ukuqinisekisa ukhuseleko lwetrafikhi ye-DNS. Ngelishwa, ngenxa yezizathu ezicacileyo, umntu akanakulindela ukwaziswa okukhawulezileyo kwenkxaso yobuninzi kwiindlela ezizezinye ze-DoH kwisoftware yabathengi, kwaye isengummandla wabathandi bobuchwephesha bokhuseleko.
Kodwa ekubeni ngoku sine-DoH, kutheni singayisebenzisi emva kokubaleka uphononongo olunokubakho ngamaqumrhu ngeeseva zabo ukuya kweyethu iseva ye-DNS-over-HTTPS?
2. Iprotocol ye-DNS-over-HTTPS
Ukuba ujonga umgangatho ichaza iprotocol ye-DNS-over-HTTPS, unokubona ukuba, ngokwenene, i-API yewebhu ekuvumela ukuba uhlanganise iphakheji ye-DNS eqhelekileyo kwi-HTTP/2 protocol. Oku kuphunyezwa ngeeheader ezikhethekileyo zeHTTP, kunye noguqulo lwefomathi yokubini yedatha yeDNS egqithisiweyo (bona. kunye namaxwebhu alandelayo) kwifomu ekuvumela ukuba udlulise kwaye uwafumane, kunye nokusebenza ngemethadatha eyimfuneko.
Ngokomgangatho, kuphela i-HTTP / 2 kunye noqhagamshelwano olukhuselekileyo lwe-TLS luxhaswa.
Ukuthumela isicelo se-DNS kunokwenziwa kusetyenziswa iindlela eziqhelekileyo ze-GET kunye ne-POST. Kwimeko yokuqala, isicelo siguqulwa sibe yi-base64URL-encoded string, kwaye okwesibini, ngokusebenzisa umzimba we-POST isicelo kwifom yebhinari. Kule meko, uhlobo olukhethekileyo lwedatha ye-MIME lusetyenziswa ngexesha lesicelo se-DNS kunye nempendulo isicelo/dns-umyalezo.
root@eprove:~ # curl -H 'accept: application/dns-message' 'https://my.domaint/dns-query?dns=q80BAAABAAAAAAAAB2V4YW1wbGUDY29tAAABAAE' -v
* Trying 2001:100:200:300::400:443...
* TCP_NODELAY set
* Connected to eprove.net (2001:100:200:300::400) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /usr/local/share/certs/ca-root-nss.crt
CApath: none
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384
* ALPN, server accepted to use h2
* Server certificate:
* subject: CN=my.domain
* start date: Jul 22 00:07:13 2019 GMT
* expire date: Oct 20 00:07:13 2019 GMT
* subjectAltName: host "my.domain" matched cert's "my.domain"
* issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
* SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0x801441000)
> GET /dns-query?dns=q80BAAABAAAAAAAAB2V4YW1wbGUDY29tAAABAAE HTTP/2
> Host: eprove.net
> User-Agent: curl/7.65.3
> accept: application/dns-message
>
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
* Connection state changed (MAX_CONCURRENT_STREAMS == 100)!
< HTTP/2 200
< server: h2o/2.3.0-beta2
< content-type: application/dns-message
< cache-control: max-age=86274
< date: Thu, 12 Sep 2019 13:07:25 GMT
< strict-transport-security: max-age=15768000; includeSubDomains; preload
< content-length: 45
<
Warning: Binary output can mess up your terminal. Use "--output -" to tell
Warning: curl to output it to your terminal anyway, or consider "--output
Warning: <FILE>" to save to a file.
* Failed writing body (0 != 45)
* stopped the pause stream!
* Connection #0 to host eprove.net left intactKwakhona nikela ingqalelo kwisihloko ulawulo-cache: kwimpendulo evela kumncedisi wewebhu. Kwipharamitha ubuninzi ubudala iqulethe ixabiso le-TTL lerekhodi ye-DNS ebuyiselwayo (okanye ixabiso eliphantsi ukuba isethi yazo iyabuyiswa).
Ngokusekelwe koku kungasentla, ukusebenza kweseva ye-DoH inezigaba ezininzi.
- Fumana isicelo se-HTTP. Ukuba le yiGET ngoko ke decode ipakethi ukusuka kwi-base64URL encoding.
- Thumela le pakethi kwiseva ye-DNS.
- Fumana impendulo kumncedisi we DNS
- Fumana ixabiso elincinci le-TTL kwiirekhodi ezifunyenweyo.
- Buyisela impendulo kumxhasi nge-HTTP.
3. Eyakho iseva ye-DNS-phezu kwe-HTTPS
Eyona ndlela ilula, ikhawulezayo nesebenzayo yokuqhuba iseva yakho ye-DNS-ngaphezulu kwe-HTTPS kukusebenzisa iseva yewebhu ye-HTTP/2. , umbhali asele ebhale ngayo ngokufutshane (jonga "").
Olu khetho luxhaswa yinto yokuba yonke ikhowudi yeseva yakho ye-DoH inokuphunyezwa ngokupheleleyo usebenzisa itoliki edityaniswe kwi-H2O ngokwayo. . Ukongeza kumathala eencwadi asemgangathweni, ukutshintshiselana ngedatha kunye nomncedisi we-DNS, udinga ilayibrari ye-Socket (mrbgem), ngethamsanqa, sele ifakiwe kwinguqulo yophuhliso lwangoku lwe-H2O 2.3.0-beta2 kumazibuko eFreeBSD. Nangona kunjalo, akunzima ukuyongeza kuyo nayiphi na inguqulelo yangaphambili ngokudibanisa indawo yokugcina kwikhathalogu /deps phambi kokuhlanganiswa.
root@beta:~ # uname -v
FreeBSD 12.0-RELEASE-p10 GENERIC
root@beta:~ # cd /usr/ports/www/h2o
root@beta:/usr/ports/www/h2o # make extract
===> License MIT BSD2CLAUSE accepted by the user
===> h2o-2.2.6 depends on file: /usr/local/sbin/pkg - found
===> Fetching all distfiles required by h2o-2.2.6 for building
===> Extracting for h2o-2.2.6.
=> SHA256 Checksum OK for h2o-h2o-v2.2.6_GH0.tar.gz.
===> h2o-2.2.6 depends on file: /usr/local/bin/ruby26 - found
root@beta:/usr/ports/www/h2o # cd work/h2o-2.2.6/deps/
root@beta:/usr/ports/www/h2o/work/h2o-2.2.6/deps # git clone https://github.com/iij/mruby-socket.git
Клонирование в «mruby-socket»…
remote: Enumerating objects: 385, done.
remote: Total 385 (delta 0), reused 0 (delta 0), pack-reused 385
Получение объектов: 100% (385/385), 98.02 KiB | 647.00 KiB/s, готово.
Определение изменений: 100% (208/208), готово.
root@beta:/usr/ports/www/h2o/work/h2o-2.2.6/deps # ll
total 181
drwxr-xr-x 9 root wheel 18 12 авг. 16:09 brotli/
drwxr-xr-x 2 root wheel 4 12 авг. 16:09 cloexec/
drwxr-xr-x 2 root wheel 5 12 авг. 16:09 golombset/
drwxr-xr-x 4 root wheel 35 12 авг. 16:09 klib/
drwxr-xr-x 2 root wheel 5 12 авг. 16:09 libgkc/
drwxr-xr-x 4 root wheel 26 12 авг. 16:09 libyrmcds/
drwxr-xr-x 13 root wheel 32 12 авг. 16:09 mruby/
drwxr-xr-x 5 root wheel 11 12 авг. 16:09 mruby-digest/
drwxr-xr-x 5 root wheel 10 12 авг. 16:09 mruby-dir/
drwxr-xr-x 5 root wheel 10 12 авг. 16:09 mruby-env/
drwxr-xr-x 4 root wheel 9 12 авг. 16:09 mruby-errno/
drwxr-xr-x 5 root wheel 14 12 авг. 16:09 mruby-file-stat/
drwxr-xr-x 5 root wheel 10 12 авг. 16:09 mruby-iijson/
drwxr-xr-x 5 root wheel 11 12 авг. 16:09 mruby-input-stream/
drwxr-xr-x 6 root wheel 11 12 авг. 16:09 mruby-io/
drwxr-xr-x 5 root wheel 10 12 авг. 16:09 mruby-onig-regexp/
drwxr-xr-x 4 root wheel 10 12 авг. 16:09 mruby-pack/
drwxr-xr-x 5 root wheel 10 12 авг. 16:09 mruby-require/
drwxr-xr-x 6 root wheel 10 12 сент. 16:10 mruby-socket/
drwxr-xr-x 2 root wheel 9 12 авг. 16:09 neverbleed/
drwxr-xr-x 2 root wheel 13 12 авг. 16:09 picohttpparser/
drwxr-xr-x 2 root wheel 4 12 авг. 16:09 picotest/
drwxr-xr-x 9 root wheel 16 12 авг. 16:09 picotls/
drwxr-xr-x 4 root wheel 8 12 авг. 16:09 ssl-conservatory/
drwxr-xr-x 8 root wheel 18 12 авг. 16:09 yaml/
drwxr-xr-x 2 root wheel 8 12 авг. 16:09 yoml/
root@beta:/usr/ports/www/h2o/work/h2o-2.2.6/deps # cd ../../..
root@beta:/usr/ports/www/h2o # make install clean
...Ubumbeko lweseva yewebhu luqhelekile jikelele.
root@beta:/usr/ports/www/h2o # cd /usr/local/etc/h2o/
root@beta:/usr/local/etc/h2o # cat h2o.conf
# this sample config gives you a feel for how h2o can be used
# and a high-security configuration for TLS and HTTP headers
# see https://h2o.examp1e.net/ for detailed documentation
# and h2o --help for command-line options and settings
# v.20180207 (c)2018 by Max Kostikov http://kostikov.co e-mail: [email protected]
user: www
pid-file: /var/run/h2o.pid
access-log:
path: /var/log/h2o/h2o-access.log
format: "%h %v %l %u %t "%r" %s %b "%{Referer}i" "%{User-agent}i""
error-log: /var/log/h2o/h2o-error.log
expires: off
compress: on
file.dirlisting: off
file.send-compressed: on
file.index: [ 'index.html', 'index.php' ]
listen:
port: 80
listen:
port: 443
ssl:
cipher-suite: ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS
cipher-preference: server
dh-file: /etc/ssl/dhparams.pem
certificate-file: /usr/local/etc/letsencrypt/live/eprove.net/fullchain.pem
key-file: /usr/local/etc/letsencrypt/live/my.domain/privkey.pem
hosts:
"*.my.domain":
paths: &go_tls
"/":
redirect:
status: 301
url: https://my.domain/
"my.domain:80":
paths: *go_tls
"my.domain:443":
header.add: "Strict-Transport-Security: max-age=15768000; includeSubDomains; preload"
paths:
"/dns-query":
mruby.handler-file: /usr/local/etc/h2o/h2odoh.rbInye kuphela i-URL yesiphathi /dns-query apho iseva yethu ye-DNS-phezu kwe-HTTPS, ebhalwe kwi-mruby kwaye ebizwa ngokusingatha ukhetho, eneneni inoxanduva mruby.handler-file.
root@beta:/usr/local/etc/h2o # cat h2odoh.rb
# H2O HTTP/2 web server as DNS-over-HTTP service
# v.20190908 (c)2018-2019 Max Kostikov https://kostikov.co e-mail: [email protected]
proc {|env|
if env['HTTP_ACCEPT'] == "application/dns-message"
case env['REQUEST_METHOD']
when "GET"
req = env['QUERY_STRING'].gsub(/^dns=/,'')
# base64URL decode
req = req.tr("-_", "+/")
if !req.end_with?("=") && req.length % 4 != 0
req = req.ljust((req.length + 3) & ~3, "=")
end
req = req.unpack1("m")
when "POST"
req = env['rack.input'].read
else
req = ""
end
if req.empty?
[400, { 'content-type' => 'text/plain' }, [ "Bad Request" ]]
else
# --- ask DNS server
sock = UDPSocket.new
sock.connect("localhost", 53)
sock.send(req, 0)
str = sock.recv(4096)
sock.close
# --- find lowest TTL in response
nans = str[6, 2].unpack1('n') # number of answers
if nans > 0 # no DNS failure
shift = 12
ttl = 0
while nans > 0
# process domain name compression
if str[shift].unpack1("C") < 192
shift = str.index("x00", shift) + 5
if ttl == 0 # skip question section
next
end
end
shift += 6
curttl = str[shift, 4].unpack1('N')
shift += str[shift + 4, 2].unpack1('n') + 6 # responce data size
if ttl == 0 or ttl > curttl
ttl = curttl
end
nans -= 1
end
cc = 'max-age=' + ttl.to_s
else
cc = 'no-cache'
end
[200, { 'content-type' => 'application/dns-message', 'content-length' => str.size, 'cache-control' => cc }, [ str ] ]
end
else
[415, { 'content-type' => 'text/plain' }, [ "Unsupported Media Type" ]]
end
}Nceda uqaphele ukuba umncedisi we-caching wendawo unoxanduva lokucubungula iipakethi ze-DNS, kulo mzekelo ukusuka kunikezelo oluqhelekileyo lweFreeBSD. Ukusuka kwimbono yokhuseleko, esi sisisombululo esisiso. Nangona kunjalo, akukho nto ikuthintelayo ekutshintsheni localhost kwidilesi eyahlukileyo yeDNS oceba ukuyisebenzisa.
root@beta:/usr/local/etc/h2o # local-unbound verison
usage: local-unbound [options]
start unbound daemon DNS resolver.
-h this help
-c file config file to read instead of /var/unbound/unbound.conf
file format is described in unbound.conf(5).
-d do not fork into the background.
-p do not create a pidfile.
-v verbose (more times to increase verbosity)
Version 1.8.1
linked libs: mini-event internal (it uses select), OpenSSL 1.1.1a-freebsd 20 Nov 2018
linked modules: dns64 respip validator iterator
BSD licensed, see LICENSE in source package for details.
Report bugs to [email protected]
root@eprove:/usr/local/etc/h2o # sockstat -46 | grep unbound
unbound local-unbo 69749 3 udp6 ::1:53 *:*
unbound local-unbo 69749 4 tcp6 ::1:53 *:*
unbound local-unbo 69749 5 udp4 127.0.0.1:53 *:*
unbound local-unbo 69749 6 tcp4 127.0.0.1:53 *:*Ekuphela kwento eseleyo kukuqalisa kwakhona i-H2O kwaye ubone ukuba yintoni eza kuyo.
root@beta:/usr/local/etc/h2o # service h2o restart
Stopping h2o.
Waiting for PIDS: 69871.
Starting h2o.
start_server (pid:70532) starting now...4. Uvavanyo
Ke, makhe sijonge iziphumo ngokuthumela isicelo sovavanyo kwakhona kwaye sijonge kwitrafikhi yenethiwekhi usebenzisa i-utility wcpdump.
root@beta/usr/local/etc/h2o # curl -H 'accept: application/dns-message' 'https://my.domain/dns-query?dns=q80BAAABAAAAAAAAB2V4YW1wbGUDY29tAAABAAE'
Warning: Binary output can mess up your terminal. Use "--output -" to tell
Warning: curl to output it to your terminal anyway, or consider "--output
Warning: <FILE>" to save to a file.
...
root@beta:~ # tcpdump -n -i lo0 udp port 53 -xx -XX -vv
tcpdump: listening on lo0, link-type NULL (BSD loopback), capture size 262144 bytes
16:32:40.420831 IP (tos 0x0, ttl 64, id 37575, offset 0, flags [none], proto UDP (17), length 57, bad cksum 0 (->e9ea)!)
127.0.0.1.21070 > 127.0.0.1.53: [bad udp cksum 0xfe38 -> 0x33e3!] 43981+ A? example.com. (29)
0x0000: 0200 0000 4500 0039 92c7 0000 4011 0000 ....E..9....@...
0x0010: 7f00 0001 7f00 0001 524e 0035 0025 fe38 ........RN.5.%.8
0x0020: abcd 0100 0001 0000 0000 0000 0765 7861 .............exa
0x0030: 6d70 6c65 0363 6f6d 0000 0100 01 mple.com.....
16:32:40.796507 IP (tos 0x0, ttl 64, id 37590, offset 0, flags [none], proto UDP (17), length 73, bad cksum 0 (->e9cb)!)
127.0.0.1.53 > 127.0.0.1.21070: [bad udp cksum 0xfe48 -> 0x43fa!] 43981 q: A? example.com. 1/0/0 example.com. A 93.184.216.34 (45)
0x0000: 0200 0000 4500 0049 92d6 0000 4011 0000 ....E..I....@...
0x0010: 7f00 0001 7f00 0001 0035 524e 0035 fe48 .........5RN.5.H
0x0020: abcd 8180 0001 0001 0000 0000 0765 7861 .............exa
0x0030: 6d70 6c65 0363 6f6d 0000 0100 01c0 0c00 mple.com........
0x0040: 0100 0100 0151 8000 045d b8d8 22 .....Q...].."
^C
2 packets captured
23 packets received by filter
0 packets dropped by kernelIsiphumo sibonisa indlela isicelo sokusombulula idilesi example.com yamkelwa kwaye yaqhutywa ngempumelelo ngumncedisi we DNS.
Ngoku ekuphela kwento eseleyo kukuvula iseva yethu kwisikhangeli seFirefox. Ukwenza oku, kufuneka utshintshe izicwangciso ezininzi kumaphepha oqwalaselo malunga: config.
Okokuqala, le yidilesi ye-API yethu apho isikhangeli siya kucela ulwazi lwe-DNS kuyo inethiwekhi.trr.uri. Kukwacetyiswa ukuba ucacise isizinda se-IP kule URL kwisisombululo esikhuselekileyo se-IP usebenzisa isikhangeli ngokwaso ngaphandle kokufikelela kwi-DNS ngaphakathi network.trr.bootstrapAddress. Kwaye ekugqibeleni, iparameter ngokwayo network.trr.mode kuquka nokusetyenziswa kwe-DoH. Ukuseta ixabiso ku-"3" kuya kunyanzela isikhangeli ukuba sisebenzise kuphela i-DNS-over-HTTPS yokusonjululwa kwegama, ngelixa i-"2" ethembekileyo nekhuselekileyo iya kunika i-DoH ephambili, ishiya ujongo oluqhelekileyo lwe-DNS njengokhetho lokubuyela umva.
5. INZUZO!
Ngaba eli nqaku beliluncedo? Emva koko nceda ungabi neentloni kwaye uxhase ngemali ngefomu yomnikelo (ngezantsi).
umthombo: www.habr.com