Ngaphandle kweeseva ze-DNS, asinakukwazi ukusefa i-intanethi njengoko sisenza yonke imihla, obu bugcisa bebubalulekile ngaphezu kweminyaka engama-30, kodwa ngoku buyahlaziywa. Ewe, sithetha ngokufika kolwandiso olutsha lwe-EDNS "evuselela" ingcamango ye-DNS.
Xa sichwetheza idilesi yewebhusayithi kwibar ye-URL yesikhangeli, ithumela ngokulula isicelo kumncedisi we-Intanethi we-DNS (iNkqubo yeGama leDomain) ukusombulula idilesi ye-IP, eyabelwe elo gama lesizinda.
I-EDNS kunye nendlela ephucula ngayo i-DNS ukuba ikhawuleze kwaye ikhuseleke ngakumbi
Nje ukuba idilesi ye-IP (iProtokholi ye-Intanethi) ifunyenwe, esinye isicelo sithunyelwa kwi-IP (iProtokholi ye-Intanethi) nje ukufumana idatha efunekayo ukuhambisa iphepha lewebhu elifanelekileyo.
Nangona kunjalo, ukufunda okungakumbi malunga ne-EDNS, siya kukuxelela ukuba yintoni i-EDNS kunye nendlela eya kuphucula ngayo i-DNS, iyenze ikhawuleze kwaye ikhuseleke ngakumbi. I-Silent Revolution iyakuphucula ukukhangela kwethu kwi-intanethi yemihla ngemihla ngaphandle kokuba siqaphele.
I-Internet Engineering Task Force (IETF) sele ivumile ukufika kwe-RFC 6891 inkcazo, okanye i-Extension Mechanism ye-DNS (EDNS). Lo mgangatho waqala ukusebenza ngoFebruwari 1, 2019. Kwaye ayisiyiyo loo nto kuphela, kodwa yazisa uluhlu lophuculo kwi-DNS ekhoyo okanye i-DNS.
Yintoni i-EDNS, kwaye iphucula njani i-DNS ukuba ikhawuleze kwaye ikhuseleke ngakumbi?
Inkqubo ye-DNS inoxanduva lokutshintsha iidilesi okanye ii-URL esizifaka kwisikhangeli kwidilesi ye-IP ehambelanayo ukuseka uxhumano. Kuze kube yi-1983, inkqubo ye-HOST yayisetyenziswa, ifayile egcina yonke imimandla ye-Intanethi eyaziwayo, kodwa oku akuzange kwenzeke ngenxa yokukhula kwe-Intanethi.
Namhlanje, iinkqubo zokwandiswa kwe-DNS zifikile kumandla, indalo eya kwenza iiseva ze-DNS zikhawuleze kwaye zisebenze ngakumbi kunangaphambili. Oku akunako nje ukwenza utshintsho ngokulula okanye ukuphucula isantya apho zitolikwa khona, kodwa amanyathelo okhuseleko anokufakwa ukukhusela ukuhlaselwa kweDDoS.
Akuyona i-DNS Extension System yokuqala epapashiweyo (EDNS), njengoko yokuqala yapapashwa kwi-1999 yi-Internet Engineering Task Force njenge-RFC 2671. Nangona kunjalo, oku sele kubhengezwe ukuba kuphelelwe yisikhathi yi-RFC 6891. Ngethamsanqa, njengabasebenzisi, akufanele ukhathazeke malunga nantoni na kuba zonke iinguqu kunye nokuphuculwa kuxhomekeke kwiinkampani ezijongene ne-DNS.
Nangona kunjalo, siya kuqhubeka nokuhamba ngokuqhelekileyo kwaye sisebenzise uphuculo, oluthi ngamanye amaxesha lufihlwe. Ngokudibanisa neenkampani, kuya kufuneka bajonge ukuba inkqubo yabo iyahambelana nayo, kwaye ukuba akunjalo, kuya kufuneka bahlaziye imigangatho emitsha.
Ngapha koko, ii-giants ezinkulu ze-intanethi ezinje ngeGoogle, iCisco, iCleanBrowsing, Cloudflare, Facebook, Internet Systems Consortium, PowerDNS kunye neQuad9 sele zihlengahlengiswe. Ewe, ucinga ntoni ngale nto? Yabelana ngazo zonke iimbono kunye neengcinga zakho kwicandelo lamagqabaza apha ngezantsi. Kwaye ukuba uthanda eli nqaku, ungalibali ukwabelana ngeli nqaku kunye nabahlobo bakho kunye nosapho.
