Dab tsi yog VPN?

VPNs Route Tag Nrho Cov Tsav Tsheb Thoob Ntiaj Teb Los Ntawm Cov Chaw Tos Qhua

VPN lus cia rau virtual private network . Muaj ib lub VPN, tag nrho koj lub tsheb yog nyob hauv ib ntiag tug, encrypted qhov li nws ua nws txoj kev los ntawm cov pej xeem hauv internet. Koj tsis nkag mus rau qhov chaw nres tsheb kom txog thaum tom qab koj tau mus txog qhov kawg ntawm VPN qhov.

Lub hauv paus ntawm VPNs yog nrov vim yog lawv tuaj yeem siv rau anonymize thiab encrypt internet tsheb. Cov tsoom fwv, ISPs, wireless network hackers thiab lwm tus neeg tsis tsuas yog tsis pom dab tsi hauv ib lub VPN, tiam sis feem ntau kuj tsis tau paub txog seb leej twg yog siv nws.

Vim li cas VPNs yog siv

Ib qho vim li cas thiaj yuav siv VPN nyob hauv ib qho chaw ua haujlwm. Ib tug neeg siv mobile uas xav tau kev nkag mus ntawm cov ntaub ntawv los ntawm cov neeg ua haujlwm hauv kev ua haujlwm yuav muab cov ntaub ntawv pov thawj VPN nkag mus rau hauv cov neeg rau zaub mov thaum tawm kom nws tseem nkag tau cov ntaub ntawv tseem ceeb.

Tswv yim: Tej zaum cov kev pabcuam hauv tej thaj chaw deb raug siv los ntawm qhov chaw uas tsis muaj VPN.

Lwm hom VPNs muaj xws li chaw-mus-qhov chaw VPNs, qhov twg ib cheeb tsam network (LAN) koom los yog txuas nrog lwm tus LAN, xws li cov chaw ua haujlwm hauv xovtooj uas txuas nrog ua ke hauv ib lub tuam txhab network hauv internet.

Tej zaum feem ntau siv rau VPN yog zais koj cov tsheb hauv internet los ntawm cov koom haum uas tuaj yeem sau koj cov ntaub ntawv, xws li ISPs, cov websites lossis tsoom fwv. Qee lub sij hawm, cov neeg siv tau cov ntaub ntawv tsis raug cai yuav siv VPN, zoo li thaum nkag mus saib cov ntaub ntawv siv los ntawm cov websites .

Ib qho piv txwv ntawm VPN

Txhua yam koj ua hauv internet tau dhau los ntawm koj tus kheej ISP ua ntej mus txog qhov chaw uasi. Yog li, thaum koj thov Google, piv txwv li, cov ntaub ntawv raug xa mus, tsis raug cai, rau koj ISP thiab tom qab ntawd los ntawm lwm qhov kev ua ntej nkag mus rau tus neeg ua hauj lwm uas tuav Google lub website.

Thaum lub sij hawm kis tau tus mob rau cov neeg rau zaub mov thiab tom qab, tag nrho koj cov ntaub ntawv tuaj yeem nyeem los ntawm ISPs uas yog siv los ua cov ntaub ntawv. Txhua tus tuaj yeem pom qhov twg nws yog koj siv internet los ntawm thiab lub vas sab koj tabtom sim ua dabtsi. Qhov no yog qhov twg VPN los hauv: kom privatize cov ntaub ntawv.

Thaum twg ib lub VPN ntsia, daim ntawv thov kom mus txog txhua lub vas sab yog thawj zaug hauv qhov peb xav pom ua ke nrog, khi rau ntawm qhov chaw. Qhov no tshwm sim rau lub sijhawm koj txuas rau VPN. Txhua yam koj ua hauv internet thaum lub hom teeb tuaj yuav tshwm rau tag nrho cov ISPs (thiab lwm tus kws soj ntsuam ntawm koj lub tsheb) uas koj tuaj yeem siv ib tus neeg rau zaub mov (VPN).

Lawv pom lub qhov av, tsis yog li cas hauv. Yog Google los soj ntsuam cov tsheb khiav ntawm no, lawv pom tsis yog leej twg, koj nyob nraum los yog koj downloading lossis uploading, tab sis cia li txuas ib qhov kev sib txuas ntawm ib qho kev pabcuam.

Qhov twg ntawm VPN cov txiaj ntsim tau los mus ua si yog dab tsi tshwm sim tom ntej. Yog tias ib lub vas sab zoo li Google tau tuaj yeem ncav tes mus rau tus neeg thov hauv lub vev xaib (VPN) saib nws yog leej twg nkag mus rau lawv cov neeg rau zaub mov, VPN tuaj yeem teb tau koj cov ntaub ntawv los yog tsis kam lees.

Qhov kev txiav txim siab hauv qhov kev txiav txim siab no yog qhov VPN cov kev pab cuam txawm tias muaj kev nkag mus rau cov ntaub ntawv no. Qee tus neeg muab kev pabcuam VPN txhob txwm rho tawm txhua tus neeg siv thiab cov ntawv khiav tsheb lossis tsis kam sau cov cav rau thawj qhov chaw. Tsis muaj cov ntaub ntawv tawm, VPN cov neeg muab kev pabcuam ua tiav rau lawv cov neeg siv.

VPN Yuav Tsum Tau

VPN cov kev siv yuav yog software raws, nrog Cisco tus VPN neeg thiab neeg rau zaub mov software, los yog kev sib txuas ntawm kho vajtse thiab software, xws li Juniper Network cov routers uas tau tshaj Netscreen-Chaw VPN neeg siv software.

Cov neeg siv khoom hauv tsev tuaj yeem sau npe rau qhov kev pab cuam los ntawm VPN tus kws kho mob rau qhov nqi them txhua hli los yog ib xyoos. Cov kev pabcuam VPN no encrypt thiab tuaj yeem anonymize browsing thiab lwm yam kev ua online.

Lwm daim ntawv yog SSL ( Secure Sockets Layer ) VPN, uas tso cai rau cov neeg siv kev sib txuas lus siv qhov web browser xwb, tsis txhob mus nruab ib qhov kev pab tshwj xeeb software. Muaj pros thiab cons rau ob qho chaw VPNs (feem ntau raws li IPSec cov kev cai) thiab SSL VPNs.