DNS Push Cov Ntawv Ceeb Toom Tau Txais Cov Txheej Txheem Txheej Txheem

IETF (Internet Engineering Task Force) pawg thawj coj, uas tsim Internet raws tu qauv thiab architecture, ua tiav tsim ib qho RFC rau "DNS Push Notifications" mechanism thiab luam tawm cov kev qhia tshwj xeeb hauv qab tus cim RFC 8765. RFC tau txais cov xwm txheej ntawm "Txoj Cai Lij Choj", tom qab ntawd kev ua haujlwm yuav pib muab RFC cov xwm txheej ntawm tus qauv qauv (Draft Standard), uas txhais tau tias ua tiav kev ruaj ntseg ntawm cov txheej txheem thiab suav nrog tag nrho cov lus hais.

Lub "DNS Push Notification" mechanism tso cai rau tus neeg siv khoom asynchronously tau txais cov ntawv ceeb toom los ntawm DNS server txog kev hloov pauv hauv DNS cov ntaub ntawv, tsis tas yuav tsum tshawb xyuas lawv ib ntus. Cov ntawv ceeb toom thawb yog ua tiav siv TCP thauj nkaus xwb, nrog rau kev sib txuas lus ruaj ntseg siv "TLS dhau TCP". Tus neeg rau zaub mov muaj cai DNS tuaj yeem lees txais TCP kev sib txuas los ntawm DNS Push Notification cov neeg siv xa cov ntawv thov rau cov npe tshwj xeeb thiab hom DNS cov ntaub ntawv. Tom qab tau txais daim ntawv thov kev tso npe, tus neeg rau zaub mov nws tus kheej yuav xa cov ntawv ceeb toom rau tus neeg siv khoom txog kev hloov pauv hauv cov ntaub ntawv teev tseg.

Tus neeg siv khoom txiav txim siab seb DNS Push Notification puas tau txais kev txhawb nqa los ntawm kev xa cov lus nug DNS ib txwm kuaj xyuas qhov muaj nyob ntawm SRV cov ntaub ntawv "_dns-push-tls._tcp.zone_name" uas taw qhia rau DNS servers pabcuam cov npe. Tus neeg siv kuj tuaj yeem sau npe rau cov ntaub ntawv uas tsis muaj nyob, thiab tus neeg rau zaub mov yuav tsum ceeb toom rau tus neeg siv yog tias ib qho tshwm sim yav tom ntej. Cov ntawv ceeb toom tsuas yog xa thaum muaj kev sib txuas TCP tsim nrog lub server thiab tsis tsim los taug qab 24 teev hauv ib hnub, 7 hnub hauv ib lub lis piam - qhov kev tso npe yuav tsum raug tshem tawm thaum tsis ua haujlwm (piv txwv li, thaum lub cuab yeej nkag mus rau hauv hom standby) thiab siv tsuas yog thaum muaj kev xav tau ncaj qha los saib xyuas cov kev hloov pauv hauv hom nyob. Kev thov DSN tsis tu ncua kuj tseem tuaj yeem xa los ntawm TCP channel tsim los rau Push ceeb toom.

Tau qhov twg los: opennet.ru