Firewall: Yuav ua li cas yog nws thiab yog dab tsi rau?

Niaj hnub no, txawm lub inexperienced computer neeg siv paub hais tias lub ntiaj teb dav Web yog tag nrho ntawm tag nrho cov hom ntawm ntshai heev txawm. Tus thawj tuaj mus rau lub siab cov kab mob thiab trojans, tab sis koj muaj peev xwm tsis nco qab txog lub hav zoov ntawm network tawm tsam thiab lwm yam "suab nrov" uas yuav coj koj ib tug ntau ntawm teeb meem.

Yuav kom pab nrog cov phenomena yog npaj Firewall. Yuav ua li cas yog nws thiab yuav ua li cas nws thiaj li pab tau?

keeb kwm keeb kwm yav dhau

Nws cia li thiaj li tshwm sim hais tias qhov no lub sij hawm Ameslikas sawv nrog kev yooj. "Firewall" los yog "phab ntsa ntawm hluav taws" lawv hu ua qhov hluav taws kub txoj kab, uas yog raws kev coj mus rau hauv lub hearth hluav taws.

Thaum ob tug nplaim taws qhov twg los ces yuav tsum, lawv nrog rho txhua lwm yam. Tab sis qhov no yog tsis yog tus Firewall. Yuav ua li cas yog nws, judging los ntawm lub computer siv lub foundations?

Lub theoretical ua neeg ncajncees

Qhov no tshwj xeeb software los yog kho vajtse system uas lim tag nrho cov network tsheb, paub siab phem ua si siv ib tug txheej ntawm cov kev cai ruaj nrees nyob rau hauv nws. Nyob rau hauv tas li ntawd, thov heuristic analyzers thiab "sandbox" system siv los xyuas txog thiab tiv thaiv uas siab phem cov kev pab cuam.

Cias muab

Yog hais tias peb txhais tag nrho cov saum toj no nyob rau hauv ntau paub cov lus uas cov Firewall (uas yog, peb twb paub) yog ib tug tshwj xeeb kev pab cuam uas controls lwm yam kev siv nyob rau hauv koj lub computer.

Tab sis tswj tsis yog txoj kev yuav ua li cas lub anti-virus, thiab los ntawm lub standpoint ntawm kev txwv tsis pub los yog kev tso cai rau tawm lub network. Qhov no yog qhov Firewall. Yuav ua li cas yog nws, yog hais tias peb tham txog qhov nruab nrab neeg siv PC, tias tag nrho cov ntawm no tus cwj pwm ntawm cov kev pab cuam ntawm tag nrho cov xav?

Yuav ua li cas nws yog

Xws li ib tug yam ntxwv rau lawv tus kheej kev ruaj ntseg yog fraught nrog teeb meem. Txawm hais tias koj yeej paub hais tias koj nyiag los ntawm koj lub computer yog tseem tsis muaj dab tsi uas siab phem hackers twb tsis xav nyob rau hauv koj cov ntaub ntawv, qhov no yog tsis heev muaj tseeb.

Koj puas muaj ib daim ntawv nyob rau hauv kev tes hauj lwm? Ib tug xov tooj uas koj sau rau ib tug tsis tu ncua kom paub meej tias dab tsi? Yog li ntawd, tag nrho cov ntawm no cov ntaub ntawv nyob rau tam sim no "duab ntxoov ntxoo" ua lag luam muaj ib co nqi. Yog li ntawd hais tias profits yuav muab tau los ntawm tej careless neeg siv.

Yuav ua li cas lawv yog

Nyob rau hauv dav dav, lub lag luam rau cov anti-virus thiab lwm yam kev ruaj ntseg software rau hnub tim, ib tug tag nrho lub tsev: nws cov coj, txawm tias cov tuam txhab uas muag uas tsis tau koom nyob rau hauv dab tsi uas zoo sib xws. Ntawm cov hoob kawm, nyob rau hauv kev xaiv yuav tsum tau ua xwb los ntawm zus tau tej cov respected thiab reputable tuam txab.

Lawv faib raws li nrog lub OS, raws li zoo raws li nyias. Cov yav tas yog muab faib mus rau hauv nyias muaj nyias kev software khoom (Outpost) thiab nyob rau hauv "appendage" tus kab mob no scanner. Ib tug piv txwv - Norton Internet Security, Kaspersky Internet Security thiab lwm yam "tiv thaiv."

Yog hais tias koj siv ib qhov system operating los ntawm ib tug coj Corporation nyob rau hauv Redmond, koj tsis yog yuav tsum kho cov firewall. Lub qhov rais muaj ib tug built-in tiv thaiv ntawm no hauv chav kawm ntawv, thiab nws cov hauj lwm zoo heev nce nyob rau hauv tsis ntev los no versions ntawm lub OS.

Raws li ib tug txoj cai, ua txoj cai poob lawm yog txaus mus raws li lub feem ntau yog ib feem tsis dhau loj ntshai heev txawm. Yog hais tias koj muab tso rau lub software los ntawm ib tug thib peb tog, ces tus firewall yog muab tua tau.

Tab sis nws thiaj li tshwm sim hais tias tom qab qhov kev tshem tawm ntawm lub antivirus los yog ib tug zoo xws li cov kev pab cuam, ua-nyob rau hauv kev tiv thaiv yog tsis tau enabled. Yog li ntawd qhov twg yog qhov firewall, uas yuav tiv thaiv tsis tau tshiab khiv muab tso rau hauv lub lag luam? Nrhiav nws yuav tsum tau nyob rau hauv cov kev tswj vaj huam sib luag, qhov uas nws yog hu ua "Firewall lub qhov rais».