DNS lus yog dab tsi?
DNS lus yog dab tsi?

Video: DNS lus yog dab tsi?

Video: DNS lus yog dab tsi?
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DNS lus . Cov DNS raws tu qauv siv ib yam lus hom ntawv rau txhua qhov kev sib pauv ntawm cov neeg siv khoom thiab cov neeg rau zaub mov lossis ntawm cov servers. Cov DNS lus yog encapsulated tshaj UDP lossis TCP siv "qhov chaw nres nkoj paub zoo" 53. DNS siv UDP rau lus me dua 512 bytes (ntau thov thiab cov lus teb).

Hauv qhov no, DNS siv rau dab tsi?

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.

Tsis tas li, kuv yuav ua li cas thiaj paub tias kuv tus DNS server yog dab tsi? Ntaus lossis muab tshuaj "ipconfig / all" hais kom ua (tsis muaj cov lus hais) rau hauv Command Prompt thiab nias "Enter" kom khiav nws thiab tau cov ncauj lus kom ntxaws txog lub network. Nrhiav tus IP chaw nyob ntawm lub computer hauv "IPv4 Chaw Nyob" teb. Nrhiav qhov tseem ceeb DNS IP chaw nyob hauv " DNS Servers " teb.

Ib yam li ntawd, DNS thiab piv txwv yog dab tsi?

DNS - Domain Name System (1) Luv rau Domain Name System (lossis Kev Pabcuam lossis Server), kev pabcuam hauv Is Taws Nem uas txhais cov npe sau rau hauv IP chaw nyob. Rau piv txwv , lub npe www. piv txwv .com tej zaum yuav txhais rau 198.105. 232.4 ib.

Dab tsi yog ob pawg tseem ceeb ntawm DNS lus?

DNS muaj ob hom ntawm lus : nug thiab teb. Ob leeg hom muaj tib hom ntawv. Cov lus nug lus muaj ib tug header thiab cov lus nug cov ntaub ntawv; cov lus teb lus muaj ib lub header, cov ntaub ntawv nug, cov ntaub ntawv teb, cov ntaub ntawv pov thawj, thiab cov ntaub ntawv ntxiv (saib daim duab 19.14).

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