Tacewar DNS ta hanyar VPN ta hana shafi loda: karanta amsar
Resolver mai tacewa zai iya toshe suna ɗaya yayin da tunnel ke aiki. Karanta nau'in amsar, gano wanda ya mallaki resolver ɗin, kuma canza abin da kake sarrafawa kawai.
Suna ɗaya ya kasa yayin da tunnel ke aiki, kuma browser ɗin yana kiransa kuskuren cibiyar sadarwa, alhali ainihin dalilin shi ne amsar DNS da resolver ɗin ya mayar. Resolver mai tacewa zai iya riƙe, ƙi ko sake rubuta suna ɗaya ya bar kowace sauran bincike tana aiki. Tunnel ɗin yana ɗaukar tambayar; resolver ɗin yana yanke shawarar amsar. Bincika wannan amsar kafin ka taɓa saitunan ɓoyewa.
Tunnel ɗin yana aiki, don haka ɓoyewa ba shi ne wanda ake zargi ba
Yanayin haɗin yana gaya maka ko fakiti suna motsi, ba ko suna yana warwarewa ba. Warwarewa tambaya ce ga uwar garken da aka saita abokin ciniki da ita, kuma manufa a can za ta iya amsa yanki ɗaya daban da kowa. Daga bangaren browser ɗin duk waɗannan amsoshin suna haɗuwa cikin kuskure na gama gari, shi ya sa hasken yanayi ke tabbatar da kaɗan.
Fara rubuta abubuwa uku: resolver ɗin da abokin ciniki ya yi amfani da shi, lambar amsa ga sunan da ya kasa, da tambaya ɗaya ga sunan da ya kamata ya yi aiki. Tambayi resolver ɗin kai tsaye da dig example.com @10.20.0.1 ka karanta layin yanayi, ba saƙon browser ba. Idan sunan gwajin ya warware kuma wanda ya kasa ya mayar da amsar manufa, hujja ta cika. Idan duka biyu suka kasa, tacewar ba ta shiga ba tukuna.
Amsoshi huɗu, masu mallaka huɗu daban-daban
Resolver mai tacewa ba shi da hanya ɗaya ta cewa a'a, kuma siffar ƙin ta nuna wani mataki na gaba daban. Rubuta lambar amsar, domin browser ɗin yana sake rubuta duka huɗun cikin wani abu mai kama da haɗin da ya yanke.
| Answer | What it points at |
|---|---|
| NXDOMAIN | The name is withheld: a policy entry or a zone decision removed it |
| Refused | The resolver declines to answer; usually an access or policy rule |
| Replacement address | A redirect to a block page or sinkhole you can query and inspect |
| No answer at all | Weakest evidence: reachability, load or routing, not necessarily policy |
Daidaita amsar da tebur kafin ka danganta komai ga tunnel ɗin. Ƙi da sunan da aka riƙe duka suna nufin resolver ɗin ya yanke shawara, alhali shiru yana nufin tambayar ba ta taɓa samun amsa ba. Wannan bambanci yana yanke shawarar ko za ka bi mai mallakar manufa ko hanyar cibiyar sadarwa.
Browser biyu na iya bin manufofi biyu
Browser da ke kawo nasa resolver ɗin ɓoyayye ba dole ba ya yi amfani da uwar garken da tsarin aiki ke rabawa, don haka zai iya watsi da manufar da aka gina tunnel ɗin don aiwatarwa. Sannan browser biyu a na'ura ɗaya ba su yarda ba kan sunan mai masauki ɗaya, kuma babu ɗayansu da ya lalace. Duba wane resolver kowace manhaja ta ɗaure da shi kafin ka kira tacewar rashin daidaituwa.
Lokacin da duka manhajoji biyu ke amfani da resolver ɗin tunnel kuma ɗaya kawai ya kasa, bambancin yana cikin manhajar, ba cikin DNS ba. Rubuta adireshin resolver ɗin ga kowace manhaja, domin wannan dalla-dalla yana ɓacewa idan taga ya rufe.
Canza abin da ka mallaka, ka ɗaukaka abin da ba ka mallaka ba
Matakinka na gaba ya dogara da wanda ya mallaki resolver ɗin da kake nufi. Wanda kake gudanarwa da kanka fasali ne da za ka iya karantawa da saitawa: duba zaɓin tacewa da aka rubuta da keɓancewarsa, sannan ka ba da izinin sunan ɗaya. Wanda ma'aikaci ko mai ba da sabis ɗinka ke gudanarwa tikiti ne da yankin, ainihin amsar da lokacin.
Kada ka taɓa sauya da resolver na jama'a don tilasta shafin buɗewa, domin sunaye masu sirri suna daina warwarewa kuma manufar da aka yi da gangan tana daina aiki. Canjin ɗan ƙaramin yana kuma kiyaye hujja lafiya, domin mai shi ya kwatanta rahotonka da nasa bayanai. Bayan canjin, sake gwajin ainihin manhajar maimakon bincike daga harsashi.
Shafin toshewa ba amintaccen takardar shaida ba ne
Shafin maye gurbin da ke gabatar da nasa takardar shaidar zai haifar da gargaɗin asalin HTTPS, kuma juyarwa ba ta sa wannan takardar ta inganta ba. Kada ka danna ta saboda tunnel ɗin yana aiki; gargaɗin shawara ce ta amincewa daban wacce har yanzu dole ta kasance daidai.
Binciken yana rufewa lokacin da sunan da ya kasa ya mayar da amsar manufa kuma sunan gwaji ya mayar da ta al'ada ta hanyar resolver ɗaya. A wannan lokacin gyaran canjin manufa ne, ba canjin tunnel ba, kuma RFC 1035 lambobin amsa su ne abin da kake ambata a cikin rahoton. Riƙe duka sunayen biyu da amsoshin tare; wannan shi ne dukan al'amarin.