Cov txheej txheem:

Dab tsi yog qhov sib txawv ntawm cov theem saum toj kawg nkaus?
Dab tsi yog qhov sib txawv ntawm cov theem saum toj kawg nkaus?

Video: Dab tsi yog qhov sib txawv ntawm cov theem saum toj kawg nkaus?

Video: Dab tsi yog qhov sib txawv ntawm cov theem saum toj kawg nkaus?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

IANA paub qhov txawv cov pawg hauv qab no ntawm sab saum toj-leveldomains:

  • infrastructure saum - qib domain (ARPA)
  • muaj saum - qib domains (gTLD)
  • txwv generic saum - qib domains (grTLD)
  • txhawb nqa saum - qib domains (sTLD)
  • lub teb chaws code saum - qib domains (ccTLD)
  • xeem saum - qib domains (tTLD)

Khaws qhov no nyob rau hauv saib, uas yog ib hom ntawm sab saum toj sau npe?

Sab saum toj - qib domain (TLD) yog hais txog qhov kawg ntawm a sau npe lub npe, los yog ib feem uas tom qab tam sim ntawd tom qab lub cim "dot". TLDs feem ntau tau muab faib ua ob pawg: TLDs dav dav thiab lub teb chaws tshwj xeeb TLDs. Piv txwv ntawm qee qhov nrov TLDs suav nrog.com,.org,.net,.gov,.biz thiab.edu.

Tsis tas li ntawd, Top Level Domain thiab qib thib ob yog dab tsi? Hauv Domain Lub npe System (DNS) hierarchy, a thib ob - qib domain (SLD lossis 2LD) yog a sau npe uas yog ncaj qha hauv qab no a saum - qib domain ( TLD ). Piv txwv li, hauv example.com, piv txwv yog tus thib ob - qib domain ntawm.com TLD.

Qhov thib ob, muaj pes tsawg tus thawj tswj hwm qib siab?

Nyob ntawd tam sim no muaj ntau dua 1,000 saum - leveldomains (TLDs) rau qhov chaw nyob hauv internet, npog txhua yam ntawm.abb mus rau.zw. Lub lim tiam no, xya TLDs tau ntxiv rau hauv is taws nem lub hauv paus ua ib feem ntawm "cov txheej txheem tshiab TLD" tau khiav los ntawm DNSoverseer ICANN, thawb nws hla 1,000 qhov pib.

Dab tsi yog qhov sib txawv ntawm cov npe sau npe?

  • TLD - Sab saum toj Domains. Cov no yog nyob rau theem siab tshaj plaws hauv DNS qauv ntawm Internet.
  • ccTLD - lub teb chaws code Sab saum toj Qib Domains.
  • gTLD - generic Top Level Domain.
  • IDN ccTLD - thoob ntiaj teb lub teb chaws code saum-leveldomains.
  • Qib thib ob.
  • Qib peb.
  • Subdomain.

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