Thaum lub vev xaib siv sijhawm ntev dua los thauj khoom, koj yuav xav tsis thoob tias nws tsis yog koj qhov kev sib txuas hauv Is Taws Nem uas yog qhov teeb meem, tab sis koj qhov chaw DNS. Nov yog vim li cas.
Tej zaum koj yuav tau hnov cov neeg qhia rau koj kom hloov koj DNS yog tias koj lub internet ceev raug kev txom nyem. Qee tus yuav hais tias hloov koj qhov chaw DNS tuaj yeem ua rau koj qhov kev nrawm nrawm dua!
Koj qhov chaw DNS ua lub luag haujlwm tseem ceeb hauv koj qhov kev tshawb nrhiav nrawm. Koj siv DNS tsis tu ncua, txawm tias koj tsis paub. Yog li cia peb tham txog dab tsi DNS yog dab tsi thiab yog vim li cas DNS nqis cuam tshuam koj internet ceev.
DNS server yog dab tsi?
DNS yog ib qho yooj yim acronym rau Domain Name System. Xav tias nws yog ib phau ntawv loj loj uas sau tag nrho cov chaw nyob hauv Internet. Thaum koj ntaus URL rau hauv koj tus browser, nws tau muab txhais ua qhov chaw nyob IP los ntawm koj tus browser siv DNS cov ntaub ntawv.
Txhua lub cuab yeej txuas nrog Is Taws Nem muaj nws tus IP chaw nyob. Yog tsis muaj DNS servers, koj yuav tsum txuag txhua qhov chaw nyob IP kom nkag mus rau lub vev xaib tshwj xeeb. Tab sis, hmoov zoo, nrog cov ntaub ntawv DNS, lub npe hostname tau muab txhais ua qhov chaw nyob IP, thiab koj tus browser xa ib daim ntawv thov mus rau server, uas xa rov qab cov peev txheej uas thauj koj lub xaib.
Muaj cov servers Dynamic DNS Thiab static DNS servers. Cov qub hloov tshiab DNS cov ntaub ntawv tsis tu ncua raws li IP chaw nyob hloov. muaj ntau Dawb Dynamic DNS Muab Kev Pabcuam uas koj kuj siv tau.
DNS server cuam tshuam li cas nrawm
Txhawm rau nkag siab tias DNS server cuam tshuam li cas, nws yog ib qho tseem ceeb uas yuav tsum tau tsom mus rau DNS cov ntaub ntawv, qhov tseem ceeb tshaj plaws yog A cov ntaub ntawv, uas sawv cev rau "chaw nyob".
Cov ntaub ntawv A qhia tag nrho cov npe sau npe rau IP chaw nyob. Thaum koj nkag mus rau lub vev xaib, DNS daws koj cov lus nug, txhais qhov URL rau hauv qhov chaw nyob IP, thiab tom qab ntawd taw qhia rau lub server uas lub vev xaib tau tuav.
Yog tias lub sijhawm teb siab siab ntawm DNS server, nws tuaj yeem ua rau lub vev xaib lub npe daws teeb meem qeeb. Qhov no yuav ua rau lub vev xaib thauj khoom qeeb dua li qhov koj xav tau.
Los ntawm lub neej ntawd, DNS server raug xaiv cia li, txawm hais tias qee tus ISPs tuaj yeem siv cov DNS server uas tau teev tseg hauv thaj chaw ze rau tus neeg siv.
Tab sis, yog tias DNS servers nyob rau hauv cov tsheb thauj khoom hnyav, nws yuav ua rau lub npe daws teeb meem nrawm, uas yuav ua rau kev tshawb nrhiav qeeb. Ib yam li ntawd, yog tias DNS server nyob ntawm qhov deb ntawm qhov chaw koj nyob, nws yuav siv sijhawm ntev dua los daws cov lus nug hauv lub vev xaib.
koj ua tau Hloov koj qhov chaw DNS los txhim kho koj lub internet ceev Txawm li cas los xij, nws tsis yog ib qho loj-haum-tag nrho cov kev daws teeb meem. Qhov zoo tshaj plaws, koj yuav xav xaiv DNS server uas nyob ze rau koj thiab muaj cov ntaub ntawv tshiab.
Cov vev xaib hauv Is Taws Nem yog kis thoob plaws servers lossis nodes. Ntau tus neeg siv cov ntsiab lus xa tawm network (CDN). Cloudflare lossis Google DNS Txhawm rau txhim kho kev ua haujlwm thiab thauj lawv cov vev xaib sai dua.
Cov ntaub ntawv tseem ceeb raug faib thoob plaws hauv lub network, tsis yog khaws cia rau tib lub server. Qhov no txo cov sijhawm teb thiab txhim kho lub sijhawm nws siv rau koj lub vev xaib kom thauj khoom.
Piv txwv li, cia peb hais tias koj nyob hauv Canada thiab koj rub tawm cov ntaub ntawv los ntawm lub vev xaib uas siv Cloudflare. Yog tias koj cov ntaub ntawv DNS A qub daws cov lus nug rau Canadian server, koj qhov nrawm yuav zoo heev.
Txawm li cas los xij, yog tias DNS daws koj cov lus nug rau ib tus neeg rau zaub mov hauv UK, piv txwv li, koj yuav pom kev sib txuas qeeb qeeb. Nco ntsoov tias cov lus nug DNS feem ntau tsis cuam tshuam rau kev rub tawm nrawm, tab sis lawv ua rau cov vev xaib thauj khoom qeeb.
Yuav ua li cas thiaj nrhiav tau qhov zoo tshaj plaws DNS server
Siv Namebench Ib txoj hauv kev zoo tshaj plaws los nrhiav qhov ceev tshaj plaws DNS server. Qhov no yog qhov khoom siv yooj yim tsim los ntawm Google uas tso cai rau koj kom paub sai sai kuaj DNS servers nyob ze koj qhov chaw. Nov yog qhov nws ua haujlwm li cas:
1. Download tau thiab nruab Namebench
Thaum koj tau rub tawm thiab nruab Namebench, koj yuav tau ntxiv DNS server koj siv. Feem ntau, Namebench yuav cia li ntes thiab populate lub npe servers koj siv, raws li qhia saum toj no.
Qhov no yog cov ntaub ntawv portable executable, yog li tsis tas yuav tsum tau nruab dab tsi. Tsuas rub tawm thiab rho tawm lub app thiab nws yuav ua haujlwm tam sim ntawd.
2. Khiav tus qauv ntsuas
Thaum koj khiav qhov ntsuas ntsuas, Namebench yuav qhia koj cov txiaj ntsig. Kev txhais cov txiaj ntsig no, uas tau qhia hauv qab no, tuaj yeem yog qhov nyuaj me ntsis, tab sis qhov tseeb, koj tsuas yog xav ua tib zoo mloog cov lus pom zoo rau saum toj. Nov yog qhov nws zoo li:
Yog tias koj saib rau sab saum toj, qhov tseem ceeb DNS tam sim no yog qhov ceev tshaj plaws, uas txhais tau tias tsis muaj laj thawj hloov khoom. Koj tuaj yeem pom cov kev pom zoo ntawm sab xis, suav nrog cov thawj, theem nrab, thiab qib siab servers.
Tom qab ntawd, Namebench qhia koj txhua qhov kev sim DNS servers, nrog rau cov txiaj ntsig rau txhua tus. Koj tuaj yeem pom lub sijhawm teb nruab nrab thiab lwm cov ntsiab lus yog tias koj nqes mus.
3. Hloov DNS servers (yog tias tsim nyog)
Nco ntsoov tias koj yuav tau hloov DNS server ntawm txhua yam khoom siv txuas nrog. Yog li, piv txwv li, yog tias koj txuas nrog Is Taws Nem siv lwm lub cuab yeej, xws li PlayStation 5, koj yuav xav hloov DNS nyob ntawd thiab.
Vim li cas DNS Servers cuam tshuam koj Internet ceev
Arguably qhov tseem ceeb tshaj plaws yog koj lub sijhawm nrhiav DNS, uas yog thaum koj DNS daws koj cov lus nug. Qhov qeeb qeeb, nws yuav siv sijhawm ntev dua rau koj lub vev xaib kom thauj khoom. Ib yam li ntawd, yog tias DNS cache tsis ntev los no tau yaug, nws yuav siv sij hawm qee lub sijhawm rau cov ntaub ntawv tshiab yuav tsum tau cached.
DNS yuav tshawb xyuas koj lub browser cache, kev khiav hauj lwm cache, thiab txawm xa ib daim ntawv thov mus rau ib tug recursive DNS server (muab los ntawm koj ISP) los daws cov lus nug.
Xaus: Koj Yuav Tsum Hloov Koj Qhov Chaw DNS?
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias hloov koj qhov chaw DNS yuav tsis tsim nyog txhua lub sijhawm, vim tias koj ISP feem ntau yuav txuas koj mus rau qhov ua tau zoo dua DNS server.
Tab sis yog tias koj tab tom taug kev lossis txuas mus rau DNS server uas tsis hloov kho lossis nyob deb, koj yuav ntsib kev qeeb qeeb. Hloov koj qhov chaw DNS yuav pab tau tiag tiag. Qee zaum, siv Smart DNS kuj tuaj yeem pab tau.
