Video: Dab tsi yog DNS piav qhia luv luv ntawm cov qauv hierarchical ntawm DNS?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
DNS siv a hierarchy los tswj nws qhov system faib database. Cov DNS hierarchy , tseem hu ua qhov chaw sau npe, yog ib tsob ntoo inverted qauv , zoo li eDirectory. Cov DNS tsob ntoo muaj ib tug sau rau saum lub qauv hu ua root domain. Lub sij hawm los yog dot (.) yog lub npe rau lub hauv paus sau.
Kuj paub, dab tsi yog nyob rau sab saum toj ntawm cov ntoo hierarchy ntawm cov thawj?
DNS hauv paus cheeb tsam yog qhov siab tshaj qib hauv DNS tsob ntoo hierarchy . Lub hauv paus npe server yog lub npe server rau thaj chaw hauv paus. Cov no yog cov ntawv tso cai nameservers uas ua haujlwm rau DNS hauv paus cheeb tsam. Cov servers no muaj cov npe thoob ntiaj teb saum - theem thaj chaw.
Tsis tas li ntawd, DNS yog dab tsi thiab nws lub hom phiaj? Domain Name Servers ( DNS ) yog Internet sib npaug ntawm phau ntawv xov tooj. Lawv tuav cov npe ntawm cov npe sau npe thiab txhais lawv mus rau Internet raws tu qauv (IP) chaw nyob. Qhov no yog qhov tsim nyog vim tias, txawm hais tias cov npe sau tau yooj yim rau tib neeg nco qab, khoos phis tawj lossis tshuab, nkag mus rau cov vev xaib raws li IP chaw nyob.
Kuj paub, dab tsi yog peb lub npe ntawm DNS?
DNS yog TCP/IP raws tu qauv siv rau ntau lub platforms. Cov sau npe lub npe chaw muab faib ua peb txawv seem: generic thaj chaw , lub teb chaws thaj chaw , thiab inverse sau npe.
Vim li cas DNS ua haujlwm hauv kev faib thiab hierarchical?
Lub Npe Lub Npe System ( DNS ) yog a hierarchical , faib database. Nws khaws cov ntaub ntawv rau kev kos npe hauv Is Taws Nem host npe rau IP chaw nyob thiab rov ua dua, xa cov ntaub ntawv xa mus, thiab lwm yam ntaub ntawv siv los ntawm kev siv Internet.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov khoom taw qhia cov qauv database thiab cov qauv kev sib raug zoo?
Qhov sib txawv ntawm kev sib raug zoo database thiab cov khoom taw qhia cov ntaub ntawv yog tias cov ntaub ntawv sib txheeb cov ntaub ntawv khaws cov ntaub ntawv nyob rau hauv daim ntawv ntawm cov ntxhuav uas muaj kab thiab kab. Hauv cov khoom taw qhia cov ntaub ntawv cov ntaub ntawv khaws cia nrog rau nws cov haujlwm uas ua los yog nyeem cov ntaub ntawv uas twb muaj lawm. Cov no yog qhov sib txawv hauv paus
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