Firewalls txheeb xyuas cov pob ntawv headers ntawm cov khoom nkag thiab tawm hauv lub network. Cov headers no muaj cov lus piav qhia thiab cov ntaub ntawv hais txog pob ntawv, xws li cov ntsiab lus ntawm pob ntawv (email, video), qhov twg nws tuaj, thiab qhov twg nws tuaj txog. Muab cov ntaub ntawv no sib piv nrog cov cai thiab cov cai uas tau teev tseg rau lub firewall los txiav txim seb cov tsheb yuav tsum raug tso cai mus ntxiv.
Firewalls txwv kev nkag mus rau lub network. Hauv cov duab hauv qab no, cov tsheb khiav xiav lossis cov pob khoom raug hloov los ntawm cov neeg siv thoob plaws hauv internet. Tom qab ntawd, lawv ncav cuag lub firewall. Cov pob ntawv tso cai yuav raug tso cai (ntsuab) thiab cov pob ntawv tsis tau tso cai (liab) yuav raug txwv.
Lub firewall tiv thaiv koj lub lag luam li cas..?
Txij li thaum firewalls ua lub luag haujlwm tseem ceeb hauv kev ruaj ntseg network, feem ntau cov lag luam xav tau nruab firewall kev ruaj ntseg. Nws tiv thaiv kev ua phem hauv is taws nem, xws li cov neeg nyiag nkas siv "malware" cov kev pabcuam siab phem feem ntau yog zais cov software raug cai kom nkag mus rau lawv cov ntaub ntawv ntiag tug. Nws tiv thaiv tsis tau kev tso cai nkag mus rau lub computer. Feem ntau muaj ob hom firewalls siv hauv kev lag luam me, hardware firewalls thiab software firewalls. Nov yog cov kev siv sab saum toj rau firewall network kev ruaj ntseg uas cov lag luam tab tom nrhiav.
1. Software firewall tiv thaiv PC
2. Hardware firewall tiv thaiv tag nrho lub network
3. Tiv thaiv kev nkag mus.
Kev ruaj ntseg nta ntawm Firewall Network Security
Firewalls muaj qee qhov haujlwm tseem ceeb hauv kev ruaj ntseg network uas pab cov lag luam muab kev ruaj ntseg ntau dua. Firewalls yog cov kab ke uas tiv thaiv cov khoom siv hauv network (xws li cov PCs, kev tswj hwm, lub koob yees duab, thiab lwm yam) los ntawm kev tsis pom zoo los ntawm kev thaiv cov tsheb khiav hauv thiab tawm ntawm cov kab ke no. Lub ntsiab tseem ceeb ntawm kev ua haujlwm ntawm txhua qhov firewall yog lim cov pob ntawv. Lub firewall tshuaj xyuas cov pob ntawv nws yuav tsum xa mus los txiav txim seb lawv puas haum rau cov qauv tsheb uas xav tau.
Kuv puas xav tau firewall network kev ruaj ntseg?
Niaj hnub no, txhua lub lag luam muaj kev txhawj xeeb txog kev tiv thaiv lawv cov ntaub ntawv thiab yuav ua li cas khaws cov ntaub ntawv tseem ceeb. Nrog cybercrime nce siab, qhov no tau ua rau txhua lub tuam txhab nce qib los tiv thaiv lawv cov ntaub ntawv. Cybersecurity dhau los ua qhov tseem ceeb tshaj plaws rau txhua lub lag luam hauv kev tiv thaiv cyberattacks. Ib qho kev ruaj ntseg zoo tshaj plaws hauv lub network yog kev ruaj ntseg firewall, thiab kom tswj tau qhov no, cov lag luam yuav tsum nqis peev hauv kev teeb tsa los ntawm cov kws tshaj lij uas tswj xyuas kev tu thiab xwm txheej ceev. Nws ua lub luag haujlwm tseem ceeb hauv kev ruaj ntseg network.