DNS teb chaws NOERROR Nyob ib ncig ntawm 80 mus rau 90 feem pua ntawm lub sijhawm, NOERROR yuav yog tus lej teb koj yuav pom hauv koj lub vev xaib. Qhov tseem ceeb, nws txhais tau tias cov lus nug DNS tau txais cov lus teb siv tau. Nws yog ib txoj hauv kev hais tias txhua yam yog OK, tsis muaj teeb meem nrog cov lus nug.
Nxdomain yog dab tsi?
NXDOMAIN yog a hom lus DNS tau txais los ntawm DNS daws teeb meem (piv txwv li tus neeg siv) thaum qhov kev thov los daws qhov sau xa mus rau DNS thiab tsis tuaj yeem daws rau tus IP chaw nyob. Cov lus yuam kev NXDOMAIN txhais tau tias tsis muaj npe.
DNS teb yog dab tsi?
DNS yog a query/response protocol. Tus neeg siv khoom nug cov ntaub ntawv (piv txwv li IP chaw nyob sib xws rau www.google.com) hauv ib qho kev thov UDP. Qhov kev thov no yog ua raws li ib zaug UDP teb los ntawm DNS server.
Nxdomain teb yog dab tsi?
Ntawm theem pib, NXDOMAIN teb txhais tau tias "qhov chaw ntawd tsis muaj." Tab sis nws tseem tuaj yeem muab cov lus qhia tseem ceeb txog koj lub network kev ruaj ntseg. Yog tias koj lub vev xaib browser tsaws ntawm daim ntawv tu siab lossis huab cua xav ua npuas, koj tau zaum tsoo NXDOMAIN yuam kev.
Dab tsi yog hom lus nug DNS?
Muaj peb hom lus nug hauv DNS system:
- Cov lus nug rov qab. …
- Cov lus nug. …
- Cov lus nug tsis rov hais dua. …
- DNS Resolver. …
- DNS Root Server. …
- Authoritative DNS Server.
