Yug ntawm Wireless Network Networking
Nws tsis dhau lawm ntev dhau los tias cov koos pij tawj tau siv khoom kim heev es tsis yog qhov tseem ceeb. Tsuas yog muaj hmoo thiab muaj nyiaj muaj txawm tias ib qho nyob rau hauv lawv lub tsev thiab ib lub network yog ib qho tshwj tseg rau cov tuam txhab loj.
Ceev ceev tuaj rau xyoo kaum ib los yog li ntawd thiab txhua tus neeg yuav tsum muaj lawv lub computer. Nws muaj ib qho rau cov niam txiv (qee zaum ob yog niam txiv tsis tuaj yeem sib koom zoo) thiab ib lossis ntau dua rau cov me nyuam siv homework thiab kev ua si. Cov neeg siv hauv tsev tau ncaim hauv Internet nkag mus rau 9600 kbps dial-up siv Internet dhau 56 kbps dial-up thiab mus txuas rau broadband txuas mus rival lossis phim T1 txuas lawv ua haujlwm.
Raws li Internet thiab World Wide Web tau tshwm sim rau hauv peb cov kab lis kev cai thiab tab tom hloov lwm cov ntawv xov xwm rau cov tib neeg mus nrhiav xov xwm, huab cua, kev ua si, khoom noj, cov nplooj ntawv daj thiab lab ntawm lwm yam, qhov kev tawm tsam tshiab tsis yog rau lub sijhawm ntawm lub computer xwb nyob rau hauv tsev, tab sis rau lub sij hawm nyob rau hauv Internet kev twb kev txuas.
Cov neeg kho vajtse thiab software cov neeg muag khoom tau tawm los nrog ntau lub tswv yim uas cia cov neeg siv hauv tsev los sib koom ib qho kev sib txuas hauv Internet ntawm ob los yog ntau lub tshuab computer. Tag nrho lawv muaj ib yam nyob rau hauv ntau heev - cov computers yuav tsum tau ua li cas yuav tsum tau koom tes.
Txhawm rau txuas koj cov computers ua ke muaj kev lig kev cai koom tes nrog qee lub cev nruab nrab nruab nrab ntawm lawv. Nws yuav yog xov tooj xaim, coaxial cable los yog CAT5 cable ubiquitous. Nyuam qhuav tau kho tshaj tawm tias txawm tias cia cov neeg siv khoom siv hauv tsev los ntawm lub xov hluav taws xob. Tab sis, ib qho yooj yim thiab tsis tshua muaj kev ntxhov siab rau network computers thoob plaws hauv koj lub tsev yog siv wireless technology.
Nws yog ib qhov yooj yim teeb. Qhov kev sib txuas hauv Internet los ntawm koj tus kws kho mob thiab txuas nrog lub wireless point los yog router uas yog tawm xov xwm. Koj txuas wireless lub kav hlau txais xov network card rau koj lub computer kom tau txais qhov teeb liab thiab tham rov qab rau lub wireless point thiab koj nyob hauv kev lag luam.
Qhov teeb meem uas muaj lub teeb liab tawm txawm yog tias nws yog qhov nyuaj rau qhov twg qhov teeb meem ntawd tawm mus. Yog tias nws tuaj yeem sab nraub qaum rau koj qhov chaw ua haujlwm hauv qab daus ces nws tuaj yeem mus tib yam li 100 taw rau koj cov neeg nyob ze koj nyob. Los yog, ib qho hacker uas nrhiav kev tiv thaiv kev sib txuas lus tsis muaj peev xwm nkag tau rau hauv koj lub tshuab los ntawm lub tsheb nres rau ntawm txoj kev.
Qhov ntawd tsis txhais hais tias koj yuav tsum tsis txhob siv wireless networking. Koj tsuas yog yuav tsum paub txog nws thiab siv qee yam ceev faj kom ua rau nws nyuaj rau cov neeg xav tau kev nkag mus rau hauv koj cov ntaub ntawv. Tshooj txuas ntxiv muaj qee cov kauj ruam uas yooj yim uas koj tuaj yeem ua kom ruaj ntseg rau koj lub network.
- Hloov Tus ID Tawm Tsav: Cov khoom siv tuaj nrog lub neej qub ID hu ua SSID (Service Set Identifier) lossis ESSID (Extended Service Set Identifier). Nws yog ib qho yooj yim rau ib tug nyiag nkev kom paub tias yog dab tsi lub cim tus kheej yog rau txhua tus neeg tsim khoom siv wireless ces koj yuav tsum hloov qhov no rau lwm yam. Siv tej yam tshwj xeeb- tsis yog koj lub npe lossis ib yam dab tsi uas yooj yim.
- Disable Identifier Broadcasting: Tshaj tawm tias koj muaj kev sib txuas lus wireless rau lub ntiaj teb yog kev caw rau cov neeg tua tsiaj. Koj twb paub tias koj muaj ib yam li koj tsis tas yuav tshaj tawm rau nws. Xyuas phau ntawv qhia koj lub xov tooj cua thiab paub seb yuav lov tes taw li cas.
- Pab kom Encryption: WEP (Wired Equivalent Privacy) thiab WPA (Wi-Fi Protected Access) encrypt koj cov ntaub ntawv kom tsuas yog tus neeg tau txais kev pab yuav tsum tau nyeem nws. WEP muaj ntau qhov thiab nws tau tawg yooj yim. 128-ntsis hauv lub lag luam me ntsis kev kawm me ntsis tsis muaj kev nce siab hauv kev ruaj ntseg li 40-ntsis (lossis 64-ntsis rau qee yam khoom) encryption yog zoo li. Raws li nrog tag nrho kev ruaj ntseg ntsuas muaj cov kev ncig nws, tab sis yog siv encryption koj yuav khaws cov xws li hackers tawm ntawm koj lub nruab. Yog tias ua tau, koj yuav tsum siv WPA encryption (feem ntau cov khoom qub tau muab kho dua los ua WPA tshaj). WPA txhim kho qhov kev nyab xeeb hauv WEP tab sis nws tseem raug rau DOS (tsis kam muab kev pab).
- Txwv Tsis Pub Tsav Tsheb: Muaj ntau lub xov tooj cua thiab kab sib chaws tsis sib txuas muaj qhov tsim hluav taws xob . Lawv tsis yog cov khoom hluav taws xob zoo tshaj plaws, tab sis lawv pab tsim ib txoj kab ntawm kev tiv thaiv. Nyeem phau ntawv no rau koj qhov cuab yeej kho mob thiab kawm yuav ua li cas kho koj tus router kom tsuas cia tau txais los yog ntsaws tsheb uas koj tau pom zoo.
- Hloov Cov Thawj Coj Tus Laus Zis: Qhov no yog kev xyaum zoo rau TXHUA thiab kev software. Cov passwords yog vim yooj yim tau thiab vim hais tias muaj coob tus neeg tsis txhob thab los noj cov kauj ruam yooj yim ntawm kev hloov lawv feem ntau yog dab tsi hackers sim ua ntej. Nco ntsoov tias koj hloov qhov password ntawm koj lub wireless router / access point rau ib yam dab tsi uas tsis yooj yim guessed li koj lub xeem.
- Thaj thiab Tiv thaiv Koj lub PC: Ua ib txoj kab tiv thaiv dhau los koj yuav tsum muaj tus kheej firewall software xws li Zone Tswb Pro thiab tiv thaiv kab mob software rau hauv koj lub computer. Ua ib qho tseem ceeb raws li kev txhim kho cov kev tiv thaiv kab mob software, koj yuav tsum khaws nws mus txog hnub. Cov kab mob tshiab tshwm sim txhua hnub thiab tus kab mob software vendors feem ntau tso tawm yam tsawg kawg ib zaug ib lub lim tiam. Koj yuav tsum khaws cov hnub kom paub tseeb tias muaj kev tiv thaiv kev ruaj ntseg . Rau Microsoft operating systems koj tuaj yeem siv Windows Update los sim thiab pab kom koj nrog thaj ua ke tam sim no.