Ib qhov zoo ntawm subdomain yog lawv tuaj yeem siv los faib cov npe hauv txoj kev xav tau.
Dab tsi yog qhov zoo ntawm subdomain?
A subdomain cia koj cais qee qhov ntawm koj qhov chaw uas nws nthuav dav txaus los lav lawv tus kheej siab rau hierarchy yam tsis dhau tag nrho cov teeb meem ntawm kev teeb tsa lub vev xaib tshiab nrog lub tshiab domain los yog cov neeg tuaj saib tsis meej pem nrog lub hauv paus sib txawv kiag li.
Qhov twg hauv qab no yog qhov zoo dua ntawm DNS?
Cov txiaj ntsig ntawm DNS yog cov npe sau npe: tuaj yeem qhia rau tus IP chaw tshiab yog tias tus tswv tsev tus IP hloov pauv . nco yooj yim dua li qhov chaw nyob IP . tso cai rau cov koom haum siv lub npe sau npe hierarchy uas yog ywj siab ntawm ib qho chaw nyob IP.
Qhov twg yog qhov piv txwv ntawm FQDN?
Tus tsim nyog sau npe (FQDN) yog lub npe sau tiav rau lub khoos phis tawj tshwj xeeb, lossis tus tswv tsev, hauv internet. FQDN muaj ob ntu: lub hostname thiab lub npe sau. Piv txwv li, ib qho FQDN rau tus neeg xa ntawv hypothetical tej zaum yuav yog mymail.somecollege.edu.
Qhov twg hauv qab no yog qhov ua haujlwm ntawm Rrsig cov ntaub ntawv?
Ib RRSIG-cov ntaub ntawv tuav a DNSSEC kos npe rau cov ntaub ntawv teev tseg (ib lossis ntau cov ntaub ntawv DNS nrog tib lub npe thiab hom). Cov neeg daws teeb meem tuaj yeem txheeb xyuas qhov kos npe nrog tus yuam sij pej xeem khaws cia hauv DNSKEY-cov ntaub ntawv.
