Yuav ua li cas yog ib tug firewall?

Yog hais tias tus tswv ntawm lub computer kev cob cog rua rau lub ntiaj teb no network ntawm lub Internet, tsis paub dab tsi ib tug firewall thiab tsis noj tej kev ntsuas kom tiv thaiv cov ntaub ntawv uas nws tsis tas yuav raug. Raws li statistics, computer nrog qhib ports (tsis muaj firewall) yog muaj kev pheej hmoo ntawm kab mob txhua txhua 2-5 feeb.

Lub fact tias muaj yog ib tug lossis loj npaum li sib txawv ntawm cov malware, hnov txhua yam. Ib zaj dab neeg hais txog lub peev xwm kev piam sij ntawm ib leeg zuj zus. Txawm hais tias kom pom tseeb ntawm sab CRT saib ntawm ib tug taw tes los yog lwv BIOS chips rau ib ntev lub sij hawm nyob rau hauv lub dhau los lawm, hloov los ntawm ib tug tswv yim pab rau malware creators, txawm li cas los, thaum lub sij hawm nws nyob rau hauv Internet los tiv thaiv cov ntaub ntawv nyob rau hauv lub computer yog tsim nyog.

Ua ntej teb cov lus nug "Yuav ua li cas yog ib tug firewall", koj yuav tsum qhia kom meej hais tias antivirus thiab firewall - yog ob yam sib txawv. Tsis txhob xav yuam kev rau cov lus! Ib feem ntawm cov kab mob kis tau los ntawm ib tug kab mob cov ntaub ntawv nyob rau hauv ib tug "huv" system. Thiab nws tsis muaj nqi uas nws yog pav tua ya ib qho kab mob kev pab cuam - cov neeg siv los sis lub operating system (autoplay). Tab sis, lwm possibilities yog siv los kis lub ntiaj teb no network tsis tau ncaj qha starting. Obviously, yog hais tias tus kev pab thawj zaug yuav paub txog tus kab mob no tiv thaiv, lub network tiv thaiv kab mob, lawv cov suab powerless.

Yuav kom teb tau lo lus nug "Yuav ua li cas yog ib tug firewall", xav txog ib tug piv txwv yooj yim. A computer kev cob cog rua rau lub network - qhov no yog ib lub tsev uas muaj ntau qhov rais thiab qhov rooj. Ib txhia qhov rooj yog meant rau cov qhua, raws li yog txoj cai nyob rau hauv lub chav tsev nyob, thaum lwm tus neeg - rau miv thiab dev, thiab lwm yam li qub nrog lub qhov rais :. Ib tug muaj yuav tsum tau tas li ajar, raws li nws yog hla los ntawm ib tug xov, nrog kev pab los ntawm cov uas tus me nyuam yog tham nrog ib tug phooj ywg, cov neeg nyob ze thiab lwm yam yog qhib tseg, thiab lub thib peb - qhov muag tsis pom. Nws yog pom tseeb tias kom lawv txhua tus "qhib wide" - yog heev txaus ntshai, vim hais tias tej tub sab yuav yooj yim coj lub tsev dab tsi.

Lub qhov rais thiab qhov rooj nyob rau hauv qhov kev piv txwv - ib tug computer network ports. Yog hais tias tus neeg siv tsis paub dab tsi ib tug firewall yog thiab tsis tau teem ib tug coj kev pab cuam, tag nrho cov ports qhib. Los ntawm lawv koj yuav saib tau cov ntaub ntawv nyob rau hauv koj lub computer tau: cia li nyiag los yog siab phem code rau kis tau rau lub system. Lub firewall yog ib tug tshwj xeeb kev pab cuam yuav tsum vov lub "ntxiv" ports thiab tso cai rau yooj kho ua hauj lwm nrog cov kev tsim nyog. Los ntawm analogy nrog lub tsev - ib lub khwb, meej txiav txim qhov twg ib tug qhua txais tos, thiab nyob qhov twg - tsis muaj. Lub npe los ntawm cov lus Askiv. Firewall (hluav taws phab ntsa). Tej zaum kuj muaj yog lub sij hawm firewall - ib tug German yaj. Kos rau lub computer lub ports tau 2ip rau lub Lavxias teb sab chaw.

Ib tug firewall yog ib feem ntawm windose system, tab sis nws yog heev yooj yim, li ntawd, nws yog advisable them sai sai mus tshwj xeeb cov khoom. Ib tug ntau ntawm lawv, thiab txhua leej txhua tus yuav nrhiav tau qhov zoo tshaj plaws tshuaj.

Cov neeg siv uas xav mus siab tiv thaiv cov ntaub ntawv nyob rau hauv koj lub computer, nws yog tsim nyog los sim coj kom zoo dua ntawm kev software ntsiab. Feem ntau nyob rau hauv lawv lub npe yog ib lo lus «Security». Piv txwv li, Kaspersky Internet Security, Comodo Internet Security, Norton Internet Security, thiab li ntawd. Cov kev pab cuam muab ib tug zoo anti-virus thiab firewall. Txawm li cas los, muaj ntau yam ntawm cov kev daws yog faib nyob rau hauv ib tug them nyiaj hauv paus. Nyob rau tib lub sij hawm, muaj ob leeg dawb firewalls thiab antivirus software. Yog li ntawd, los ntawm qhov chaw, piv txwv li, antivirus Avira Dawb (free), thiab Comodo Firewall, koj muaj peev xwm npaj ib tug txhim khu kev qha kev tiv thaiv tiv thaiv siab phem cov kev pab cuam. Tag nrho cov firewalls muab ib tug ntau yam ntawm kev ruaj ntseg nta, li ntawd ua ntej zaum kawg xaiv rau sim xaiv "sib tw". Piv txwv li, ib tug firewall, uas yog ib feem ntawm Dr.Web, thaum ua tau kev cai cov kev pab cuam mus saib tau cov network, qhia ib tug dialog box nrog qhov kev txiav txim ntawm kev xaiv. Qhov no yuav pab tau yog tias ib tug kev pab cuam yog "tsis muaj kev thov" xav kom tau nyob hauv internet.