Muaj ntau ntau yam txheej xwm seb vim li cas ib qhov web page yuav tsis ntim rau hauv koj tus browser. Qee zaum qhov teeb meem yog ib qho ntawm kev sib tw. Ib lub vas sab cov neeg tsim khoom siv yuav yuam kev siv cov tswv yim siv rau kev xaiv uas tsis yog txhua qhov browser paub yuav ua li cas. Koj tuaj yeem tshawb xyuas txog hom teebmeem no los ntawm kev siv qhov browser txawv mus xyuas lub vas sab. Tias 's yog ib qho ntawm vim li cas nws' s ib lub tswv yim zoo kom Safari , Firefox , thiab Chrome web browsers ke.
Yog hais tias ib nplooj ntawv nce hauv ib qhov browser, tiam sis tsis yog lwm tus, koj paub nws yog ib qho teeb meem uas muaj teeb meem.
Ib qho ntawm feem ntau yuav ua rau ntawm qhov web page tsis loading yog ib tug wrongly configured los yog tsis tswj DNS (Domain Name Server) los ntawm koj tus ISP (Internet Service Provider). Feem coob ntawm cov neeg siv Internet muaj cov kab ke DNS rau lawv los ntawm lawv cov ISP. Qee lub sij hawm qhov no tau ua tiav; Qee zaum ib qho ISP yuav muab koj DNS tus neeg siv Internet qhov chaw nyob rau manually nkag mus rau hauv koj lub Mac qhov chaw network. Hauv ob qho tib si, qhov teeb meem feem ntau ntawm ISP qhov xaus ntawm qhov kev txuas.
DNS yog lub kaw lus uas tso cai rau peb siv cov npe tau yooj yim rau cov websites (zoo li lwm cov kev pab cuam hauv Internet), tsis yog qhov nyuaj-rau-nco ntsoov cov lus qhia txog IP uas raug xa mus rau cov websites. Piv txwv, nws yooj yim heev rau nco ntsoov www.about.com tshaj 207.241.148.80, uas yog ib tug ntawm About.com tus IP chaw nyob . Yog hais tias lub DNS system muaj teeb meem txhais lus www.about.com mus rau qhov tseeb IP chaw, ces lub website yuav tsis thauj khoom.
Koj tuaj yeem pom cov lus yuam kev, lossis tsuas yog ib feem ntawm lub vev xaib yuav tso tawm.
Qhov ntawd tsis txhais hais tias tsis muaj dab tsi uas koj tuaj yeem ua tau. Koj tuaj yeem lees paub seb koj ISP's DNS system ua haujlwm zoo. Yog hais tias nws tsis yog (lossis txawm tias nws yog), yog tias koj xav, koj tuaj yeem hloov koj cov DNS nqis los siv cov neeg khiav dej num muaj zog tshaj li qhov koj tau pom zoo.
Kev kuaj koj cov DNS
Mac OS muaj ntau txoj hauv kev los kuaj thiab paub meej tias seb puas muaj DNS system zoo rau koj. Kuv yuav los qhia koj ib qho ntawm cov kev.
- Launch Terminal, nyob hauv / Cov Ntawv Qhia / Kev Siv Hluav Taws Xob /.
- Ntaus lossis daim ntawv / txua ua raws li cov lus hais hauv qab no rau hauv qhov chaw dav tshav dav hlau.
host www.about.com
- Nias qhov xa rov qab lossis nkag mus rau tom qab koj sau kab saum toj no.
Yog tias koj qhov ISP qhov DNS system ua haujlwm, koj yuav tsum pom ob kab hauv qab no rov qab rau hauv daim ntawv thov Terminal :
www.about.com yog ib lub npe rau dynwwwonly.about.com .httwwwwwonly.about.com muaj chaw nyob 208.185.127.122
Dab tsi yog qhov tseem ceeb yog kab thib ob, uas pom tseeb tias qhov DNS system tau txhais cov web site lub npe mus rau hauv qhov chaw nyob hauv lub xov tooj, qhov no 208.185.127.122. (thov ceeb toom: qhov chaw tus IP tseeb rov qab tuaj yeem txawv).
Sim cov kev qhia ua tus tswv tsev yog tias koj muaj teeb meem nkag mus rau ib lub vas sab. Txhob txhawj txog cov naj npawb ntawm cov ntawv nyeem uas yuav xa rov qab; nws txawv ntawm lub website mus rau lub website. Dab tsi yog qhov tseem ceeb yog tias koj tsis pom ib txoj kab uas hais tias:
Npaj koj lub npe rau ntawm your.website.name tsis pom
Yog tias koj tau txais 'lub website tsis tau pom' tshwm sim, thiab koj paub tseeb tias koj tau nkag mus rau hauv lub vas sab lub npe kom raug (thiab hais tias muaj tiag tiag yog lub website ntawm lub npe ntawd), ces koj tuaj yeem tsim nyog tias, tsawg kawg rau lub sijhawm , koj ISP's DNS system yog muaj teeb meem.
Siv ib qho txawv DNS
Qhov yooj yim tshaj los txhim kho tus ISP's malfunctioning DNS yog hloov tus txawv DNS rau ib qho. Ib qho zoo heev DNS system khiav los ntawm lub tuam txhab hu ua OpenDNS (tam sim no ib feem ntawm Cisco), uas muaj kev siv dawb nws txoj kev siv nyiaj. OpenDNS muab cov lus qhia ua tiav rau kev hloov rau lub Mac qhov chaw network, tab sis, yog tias koj muaj teeb meem txog DNS, koj tuaj yeem nkag mus rau OpenDNS lub vev xaib. Ntawm no yog lub ceev daus ntawm yuav ua li cas hloov tau koj tus kheej.
- Launch System Preferences los txhaj rau 'System Preferences' icon hauv qhov chaw nres nkoj , los xaiv qhov khoom 'System Preferences' ntawm Apple menu .
- Nias lub 'Network' icon hauv lub Xaiv Qhov Xaiv qhov System.
- Xaiv qhov kev txuas koj siv rau kev siv Internet. Yuav luag txhua tus neeg, qhov no yuav tsum tau ua hauv Ethernet.
- Nyem qhov 'Advanced' khawm
- Xaiv qhov 'DNS' tab.
- Nias lub plus (+) khawm hauv qab DNS Servers dab tsi thiab nkag mus rau hauv DNS chaw nyob hauv qab no.
208.67.222.222
- Rov qab cov kauj ruam saum toj no thiab sau qhov thib ob ntawm DNS, hauv qab no.
208.67.220.220
- Nyem qhov 'OK' button.
- Nyem qhov 'Apply' khawm.
- Kaw qhov kev xaiv Network pane.
Koj Mac yuav tam sim no muaj kev nkag mus rau DNS cov kev pab cuam los ntawm OpenDNS, thiab lub website yoojyim yuav tsum tau tam sim no thauj zoo.
No txoj kev ntxiv cov OpenDNS nkag ua rau koj tus thawj DNS qhov tseem ceeb. Yog tias koj xav, koj tuaj yeem rov qab ua tau daim ntawv teev npe, tsiv dua tshiab nkag mus rau saum daim ntawv. Cov kev tshawb nrhiav DNS pib nrog thawj DNS neeg rau zaub mov hauv daim ntawv. Yog tias lub tsev kawm ntawv tsis pom muaj nyob hauv thawj qhov nkag, lub DNS lookup hu rau qhov nkag zaum ob. Qhov no tseem mus txog rau thaum lub lookup yog ua, los yog tag nrho cov DNS servers nyob rau hauv daim ntawv muaj tau sab lim.
Yog hais tias tus tshiab DNS servers koj ntxiv yog ua tau zoo dua ces koj thawj sawv daws yuav, koj tuaj yeem txav cov tshiab nkag mus rau sab saum toj ntawm daim ntawv teev los ntawm kev xaiv ib qho thiab cab nws mus rau saum.