Network kev ruaj ntseg teeb meem cuam tshuam txog qhov tob hauv kev txhim kho ntawm cov kev siv network yav tom ntej. Nws suav nrog cov tswv yim kev ruaj ntseg, mobile lej, kev tiv thaiv kev qhia, cryptography, operating systems, software engineering, thiab tswj kev ruaj ntseg hauv network. Feem ntau," foob pob hluav taws" thev naus laus zis feem ntau yog siv los cais tawm ntiag tug ntawm sab uas siv ntawm Is Taws Nem.
& quot; Hluav Taws Xob" yog ib lo lus muaj sia. Qhov tseeb, nws yog kev sib txuas ntawm lub khoos phis tawm thiab software uas tsim kom muaj kev tiv thaiv kev ruaj ntseg nruab nrab ntawm Is Taws Nem thiab lub intranet, yog li tiv thaiv lub intranet los ntawm cov neeg siv tsis tau tso cai.
Qhov zais zais yooj yim tuaj yeem ua tiav" firewall" ua haujlwm. Yog tias no" foob pob hluav taws" yog tus router niaj hnub, nws tsuas tuaj yeem ua lub luag haujlwm ntawm kev rho tawm. Cov routers zais kuj tuaj yeem thaiv kev sib txuas lus ntawm cov tes hauj lwm lossis cov tswv ntawm Is Taws Nem qhov chaw nres nkoj theem, ua si qee qhov haujlwm lim. Txij li thaum lub zais zais tsuas yog kev hloov kho ntawm lub router' s tsis dhau, qee cov neeg tsis cais nws li kev ntsuas ntawm" foob pob hluav taws" theem.
Nws muaj ob hom" foob pob hluav taws" hauv qhov tseeb txiav txim siab, ib qho yog hu ua txheem" foob pob hluav taws" ;; lwm qhov yog hu ua Shuangjia Rooj vag. Tus qauv" foob pob hluav taws" system suav nrog Unix workstation nrog router nyob ntawm txhua kawg rau kev tiv thaiv. Qhov kev sib tshuam ntawm ib lub router yog lub ntiaj teb sab nraud, uas yog, tsoomfwv network; thaum lwm tus txuas nrog rau sab hauv network. Tus qauv" foob pob hluav taws" siv cov software tshwj xeeb thiab xav tau qib siab ntawm kev tswj hwm, thiab muaj qee lub sijhawm qeeb hauv kev xa xov. Shuangjia lub rooj vag yog kev txuas ntxiv ntawm tus qauv" foob pob hluav taws" ;. Shuangjia lub qhov rooj tseem hu ua bastion host lossis thov txheej txheej rooj vag. Nws yog tib qho system, tab sis nws tuaj yeem ua tiav txhua txoj haujlwm ntawm tus qauv" foob pob hluav taws" tib lub sijhawm. Qhov kom zoo dua yog tias nws tuaj yeem khiav cov ntawv thov ntau dua thaum tiv thaiv ib qho kev sib txuas ncaj qha ntawm Is Taws Nem thiab sab hauv nruab nrog, kom ntseeg tau tias cov ntaub ntawv cov ntaub ntawv tsis tuaj yeem ncaj qha mus rau sab hauv lub network los ntawm sab nraud network, thiab rov qab sab nraud.
Nrog kev nce qib ntawm" firewall" thev naus laus zis, ob" foob pob hluav taws" teeb tsa tau hloov zuj zus los ntawm Shuangjia cov rooj vag, ib qho yog lub qhov rooj tswj hwm tus tswv tsev, thiab lwm qhov yog lub qhov rooj zais ntawm cov ntse (zais hauv qab subnet). Ntiag txuas lub rooj vag tsev tam sim no tej zaum yuav yog ib qho" foob pob hluav taws" kev teeb tsa. Raws li lub npe hais, qhov kev teeb tsa no hides lub router ntawm ib sab, thiab nruab ib lub hauv paus tswv tsev nruab nrab ntawm Is Taws Nem thiab sab hauv ntawm sab tes. Tus tswj lub chaw hauv qab pob yog ntsia rau hauv lub intranet. Los ntawm kev teeb tsa ntawm lub router, tus tiv thaiv bastion ua tus txheej txheem nkaus xwb rau cov vijtsam sab hauv los txuas lus nrog Is Taws Nem. Tam sim no," foob pob hluav taws" nrog rau kev siv thev naus laus zis siab tshaj plaws thiab qib siab tshaj plaws ntawm kev ruaj ntseg yog zais lub rooj vag ntse. Lub npe hu ua zais lub rooj vag ntse yog kom zais lub rooj vag tom qab kev sib koom tes. Nws yog tib qhov system uas cov siv Is Taws Nem pom tau. Txhua txoj haujlwm hauv Is Taws Nem yog ua los ntawm cov software tiv thaiv no zais hauv qab cov pej xeem. Feem ntau hais lus, qhov" foob pob hluav taws" yog qhov tsawg kawg nkaus uas yuav raug pov tseg.
Kev ruaj ntseg thev naus laus zis siv nrog rau" foob pob hluav taws" kuj tseem ua cov ntaub ntawv encryption technology. Cov ntaub ntawv encryption technology yog ib qho txuj ci tseem ceeb uas siv los txhim kho kev ruaj ntseg thiab kev npog ntawm cov ntaub ntawv xov xwm thiab cov ntaub ntawv, thiab tiv thaiv cov ntaub ntawv zais cia ntawm kev puas tsuaj sab nraud. Nrog rau kev tsim cov xov xwm thev naus laus zis, kev ruaj ntseg network thiab cov ntaub ntawv tsis pub lwm tus paub tau nyiam mloog ntau dua. Ntxiv rau kev ntxiv dag zog rau cov ntaub ntawv kev tiv thaiv kev tiv thaiv los ntawm kev cai lij choj thiab kev tswj hwm, ntau lub teb chaws tau coj kev ntsuas hauv ob qho tib si software thiab kho vajtse los txhawb txoj kev txhim kho txuas ntxiv ntawm cov ntaub ntawv encryption technology thiab lub cev tiv thaiv kev siv thev naus laus zis. Raws li kev ua haujlwm sib txawv, cov ntaub ntawv encryption technologies tsuas yog muab faib ua plaub yam: cov ntaub ntawv xa mus, cov ntaub ntawv khaws cia, kev kuaj xyuas cov ntaub ntawv muaj tseeb, thiab cov thev naus laus zis tswj kev lag luam tseem ceeb.
Lwm thev naus laus zis txheeb ze rau cov ntaub ntawv encryption technology yog ntse daim npav thev naus laus zis. Lub npe hu ua daim npav ntse yog hom xov xwm tseem ceeb, feem ntau zoo li daim npav rho nyiaj, tuav los ntawm tus neeg siv muaj cai thiab muab tus lej zais lossis tus lej zais los ntawm tus neeg siv khoom. Tus password txuas nrog tus password sau npe ntawm lub network network server. Thaum cov lej zais thiab cov cim ntiag tug tau siv ua ke, kev ruaj ntseg ntawm daim npav ntse tseem ua tau zoo heev.
Cov kev tiv thaiv kev nyab xeeb network thiab cov ntaub ntawv tiv thaiv kev tiv thaiv no muaj qee qhov txwv, thiab nws tsis yog qhov kev nyab xeeb uas tau ntseeg siab dua. Yog li no, thaum saib seb lub intranet puas muaj kev nyab xeeb, nws tsis yog tsuas yog yuav tsum xav txog nws txoj kev, tab sis tseem ceeb tshaj, ntau yam kev ntsuas ntawm lub network, suav nrog tsis tsuas yog tiv thaiv lub cev, tab sis kuj yog cov neeg ua haujlwm zoo thiab lwm yam &; mos" yam tseem ceeb. Soj ntsuam, thiab kos cov lus xaus kom nyab xeeb.