Yuav ua li cas yog ib tug firewall: cov lus teb rau lo lus nug

Yog hais tias koj nug txog dab tsi ib tug firewall, koj muaj tej zaum ces yuav tsum qhov teeb meem chaw. Nyob rau lwm nws - ib tug firewall, los yog ib yam ntawm cov bastion, uas nws lub ntsiab hauj lwm yog mus saib nyob rau header ntawm packets kis tshaj lub network interface ntawm koj lub computer. Raws li cov kev cai, nws thiaj li tawm tau qhov kev txiav txim nyob rau hauv cov ntaub ntawv packets.

Ntxiv mus, lub firewall yuav muab txhais li kev tiv thaiv ntawm lub tsev computer los yog ib tug tag nrho network. Firewall Configuration nyob rau hauv lub network yog cov thiaj li hu ua lub rooj vag computer, uas muab lwm cov neeg nkag mus rau hauv Internet. Nyob rau hauv no tsab xov xwm peb yuav sim kom to taub li cas ib tug firewall yog, tus yam ntxwv ntawm ib tug computer, thiab lub qhov rais 7.

Lub hom hauj lwm ntawm ib tug firewall yog los tiv thaiv koj lub computer los ntawm ntau yam network tawm tsam, cua nab, kev txwv ntawm malware, etc. Cov ntaub ntawv packets kis rau lub network, tab sis, tsis yog tag nrho. Qhov no yog ua kom paub meej tias network tsheb yog tusyees faib. Nyob rau hauv thiaj li yuav teb cov lus nug ntawm yog dab tsi yog ib tug firewall, koj yuav tsum tau to taub, los ntawm dab tsi yog qhov pob.

Cov pob no yuav muab faib ua ob qhov chaw - lub cev thiab tus header (nyiaj siv ua haujlwm feem thiab cov ntaub ntawv cheeb tsam, ntsig txog). Yog hais tias cov header muaj cov hauj lwm cov ntaub ntawv (qhov twg los thiab lo lus uas peb qhov chaw nres nkoj, chaw nyob, luaj li cas ntawm cov ntaub ntawv xa mus, etc.), cov pob lub cev muaj li cov ntaub ntawv nws tus kheej (ib feem ntawm ib suab paj nruag ntaub ntawv los sis cov yeeb yam, emails, thiab lwm yam)

Yog hais tias lub firewall yog muab rau, tus txheej txheem nws cov tshev mis lub header ntawm tag nrho cov pob uas xa mus los yog tau txais los ntawm lub network interface. Ib co ntawm cov kev cai hais tseg los ntawm lub system administrator, piv txwv li koj. Piv txwv li, koj yuav lov tes taw tag nrho cov khoom sib txuas thiab rau koj laptop, tsis muaj ib tug muaj peev xwm txuas. Yuav ua li cas yog ib tug firewall? Nws yog zoo ntawm phab ntsa ntawm koj lub computer thiab lub network. Nrog nws cov kev pab, koj muaj peev xwm kuj lov tes taw pliaj cov kev pab cuam, los yog siv ib txoj kev chaw nres nkoj (piv txwv li, los ntawm kev kaw chaw nres nkoj 5190, koj lov tes taw ICQ).

Muaj coob tus neeg niaj hnub no yog xav nyob rau hauv cov nqe lus nug ntawm seb puas los yog tsis lov tes taw rau firewall rau lub qhov rais 7. Rau OS qhov rais XP cia li ib teev siv nyob rau hauv Internet tsis muaj ib tug firewall enabled, yuav luag 100% txhais tau tias kab mob tus kab mob no los yog malware. Teb rau ib lo lus nug txog li cas ib firewall, yog tsim nyog sau cia hais tias nws yog nyob rau hauv lub qhov rais 7 nws copes nrog neeg ua hauj lwm. Nyob rau hauv qhov tseeb, nws yuav yooj yim hloov xws li ib tug haib kev pab cuam zoo li Kaspersky Internet Security: ib ob peb lub hlis ua hauj lwm rau kuv lub computer los ntawm khij cov kev pab cuam nyob rau hauv lub cev thiab DrWeb Curelt yeej tsis qhia ib zaug xwb tus kab mob no. Thiab qhov yooj customize thiab meej navigation nyob rau hauv lub firewall lub qhov rais 7 yog tseem yog ib qho ntawm nws cov plus. Thaum zoo configured, nws muaj peev xwm kiag li hloov them peb-tog firewalls. Thiab yog hais tias koj tseem tsis txaus siab, koj muaj peev xwm download tau ib tug lwm txoj, piv txwv li, Outpost Security Suite Pro.

Yog hais tias koj tsis tau ntsia ib tug thib peb-tog firewalls, nws tseem ceeb heev kom tsis txhob lov tes taw rau cov haiv neeg version, relying tsuas yog nyob rau ib lub router los yog kev kho vajtse firewall ntawm lub Internet thiab koj lub PC. Txwv tsis pub, koj yuav kis tau kab mob, thiab ceev heev!