Definition of FQDN (Fully Qualified Domain Name)

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Definition of FQDN (Fully Qualified Domain Name)
Definition of FQDN (Fully Qualified Domain Name)
Anonim

Ib FQDN, lossis Lub Npe Sau Npe Ua Haujlwm Zoo, tau sau nrog lub npe hostname thiab lub npe sau npe, suav nrog cov npe saum toj kawg nkaus, hauv qhov kev txiav txim: [hostname].[domain].[tld].

Nyob rau hauv qhov xwm txheej no, "tsim nyog" txhais tau tias "tseem ceeb" vim tias tag nrho qhov chaw ntawm lub npe tau teev nyob rau hauv lub npe. FQDN qhia qhov tseeb qhov chaw ntawm tus tswv tsev hauv DNS. Yog tias lub npe tsis yog qhov no tau teev tseg, nws raug hu ua ib feem tsim nyog sau npe, lossis PQDN. Muaj lus qhia ntxiv ntawm PQDNs hauv qab ntawm nplooj ntawv no.

Ib FQDN kuj tseem raug hu ua lub npe tseem ceeb, txij li nws muab txoj hauv kev zoo ntawm tus tswv tsev.

FQDN Piv txwv

Ib lub npe tsim nyog tau sau ib txwm sau ua hom ntawv no: [hostname].[domain].[tld]. Piv txwv li, tus neeg rau zaub mov xa tuaj ntawm example.com tus sau tuaj yeem siv FQDN mail.example.com.

Ntawm no yog qee qhov piv txwv ntawm kev tsim nyog sau npe:


www.microsoft.com

en.wikipedia.org

p301srv03.timandtombreadco.us

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Xav paub ntxiv ntawm FQDN

Tsim nyog sau npe npe tiag tiag xav tau lub sijhawm kawg. Qhov no txhais tau tias www.microsoft.com. yuav yog txoj hauv kev nkag mus rau FQDN ntawd. Txawm li cas los xij, feem ntau cov tshuab tsuas yog hais txog lub sijhawm, txawm tias koj tsis qhia meej meej. Qee qhov web browsers tseem tuaj yeem tso cai rau koj nkag mus rau lub sijhawm kawg ntawm qhov URL, tab sis nws tsis tas yuav tsum tau.

Cov npe npe uas tsis "tsim nyog" yuav ib txwm muaj qee yam tsis meej txog lawv. Piv txwv li, p301srv03 tsis tuaj yeem yog FQDN vim tias muaj ntau tus lej uas tseem yuav muaj lub server los ntawm lub npe ntawd. p301srv03.wikipedia.com thiab p301srv03.microsoft.com tsuas yog ob qho piv txwv-paub tsuas yog hostname tsis ua ntau rau koj.

Txawm tias microsoft.com tsis muaj peev xwm ua tiav vim peb tsis paub meej tias lub npe hostname yog dab tsi, txawm tias feem ntau browsers tau txiav txim siab nws yog www.

Cov npe sau npe uas tsis tsim nyog tau raug hu ua ib feem tsim nyog sau npe.

Ib Nrab Tsim Nyog Lub Npe (PQDN)

Lwm nqe lus uas zoo ib yam li FQDN yog PQDN, lossis ib feem tsim nyog sau npe, uas tsuas yog lub npe sau npe uas tsis tau teev tag nrho. Tus p301srv03 piv txwv los ntawm saum toj no yog PQDN vim tias thaum koj paub lub npe hostname, koj tsis paub tias nws yog dab tsi.

Cov npe tsim nyog ib nrab tsuas yog siv kom yooj yim, tab sis tsuas yog hauv qee qhov ntsiab lus. Lawv nyob rau qhov xwm txheej tshwj xeeb thaum nws yooj yim dua rau xa mus rau lub npe hostname yam tsis tau xa mus rau tag nrho cov npe tsim nyog. Qhov no yog ua tau vim hais tias nyob rau hauv cov ntsiab lus, lub npe twb paub nyob rau lwm qhov, thiab yog li tsuas yog lub hostname yog xav tau rau ib tug tshwj xeeb txoj hauj lwm.

Piv txwv li, hauv DNS cov ntaub ntawv, tus thawj coj tuaj yeem xa mus rau lub npe sau npe zoo li en.wikipedia.org lossis tsuas yog luv nws thiab siv lub npe ntawmen Yog tias luv luv, lwm qhov ntawm cov kab ke yuav nkag siab tias hauv cov ntsiab lus tshwj xeeb, en yog xa mus rau en.wikipedia.org

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Txawm li cas los xij, koj yuav tsum nkag siab tias FQDN thiab PQDN tsis yog tib yam. Ib qho FQDN muab tag nrho txoj hauv kev ntawm tus tswv tsev, thaum PQDN tsuas yog muab cov npe txheeb ze uas tsuas yog ib feem me me ntawm lub npe sau npe xwb.

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