Firewall: Yintoni na kwaye yintoni na iinjongo zayo?

Ukusebenza okanye ukudlala imidlalo, kufuneka kuqondwe ukuba umsebenzisi kwi web, apho kukho villains yayo. Aba bantu kuthiwa imigewu. Ziphila ukuba uzama ukuba ukungena kwikhompyutha omnye umntu ebe ulwazi oluvela kulo. Ukwenza kube lula kunye ezahlukeneyo iintsholongwane kunye malware, kwakunye nezinye iindawo inkqubo yokusebenza abasemngciphekweni. Ukuba anti-ntsholongwane kudala ceba anti-virus, kukho firewall ukukhusela PC yakho womnatha okanye Internet. Yintoni na?

firewall

Abasebenzisi abaninzi abangenalwazi bacinga ukuba software wesi uyakwazi ukubakhusela kuzo zonke izinto ezimbi. Noko ke, akunjalo. Kuba ukhuselo PC esipheleleyo kwakusafuneka firewall. Yintoni na kwaye isebenza njani?

Ukubona firewall kunye nezicwangciso zayo inokuba ukukhusela engundoqo. Ukuqinisekisa ukhuseleko ubuninzi PC yakho, le nkqubo ilawulwa imithetho ethile. Le ntetho ibhekisa izenzo eziya kwenza i-firewall xa sibona bangxamele ngokunxulumene komnye umthombo. Le mithetho isenokuba uhlobo ovuma vala. Kubalulekile ke ukuhlala ukhumbula ukuba inkqubo sikhusela ikhompyutha kumanqanaba amabini. Lokuqala - i-network, kwaye eyesibini - isicelo. Oko kukuthi, ukuba impendulo imibuzo malunga nendlela firewall, yintoni na kwaye isebenza njani, kunokwenzeka ukuba aseke impendulo. Le software eyakhelwe-ngaphakathi, nto leyo eyenzelwe ukukhusela PC evela imizamo kubantu uxhulumaniso ngaphandle.

ukhuseleko Network

Njengokuba bekutshiwo ngaphambili, i-firewall uye izigaba ezimbini ukukhuselwa. Isigaba sokuqala - yinto PC yokhuseleko womnatha. ukhuselo Umiliselo kwenzeka ngenxa imithetho jikelele, leyo ichazwe ngu-firewall, kwaye koi isebenzisa xa sibona uqhagamshelwano. Kuxhomekeka izinto ezininzi, inkqubo okanye ukubhloka uqhagamshelwano okanye avumele:

• Ulwalathiso zepakethe network.
• network transmission packet protocol.
• Port of indawo okanye yokuphuma package.

Ukuze uphendule lo mbuzo ngokubanzi ngakumbi malunga nokuba yintoni i-firewall, kuyimfuneko ukuba ufumanise ukuba yintoni na ipakethe womnatha, leyo isebenza ikhusi. Enyanisweni, yonke into ilula. iphakheji Network - ulwazi ethunyelwayo ngaphakathi network nje block. Iskrini ufumana ipakethe njengeyunithi, uwahlule ube zahlulo zithathu. Inxalenye yokuqala ithathwa ukuba header kwaye iqulethe iinkcukacha malunga kumhla kwendalo, isihloko, ubungakanani block, njalo njalo. D. Inxalenye yesibini iya kuba isiqulatho ngoko nangoko, kwaye eyesithathu kuthiwa isiphelo, kwaye ithwala inkcazelo engqina ukuba ngexesha iyunithi ugqithiso awuzange uguqulwe ngu icala.

ukhuseleko Applied

Ukuba uhlobo lokuqala wokhuseleko usebenza ulwazi oza ikhompyutha siqu evela ngaphandle, omnye uhlobo lomsebenzi sele ifakiwe kwi-PC yakho. amalungiselelo afana kwezinye imithetho isicelo. Nangona kunjalo, kubalulekile ukukhumbula ukuba uhlalutyo apho khusi kwenza isigqibo, ukuba uhlala efanayo njengoko kunjalo wokhuseleko womnatha.

Kodwa kukho ezinye umahluko. It sikuko yokuba, ukongeza iyunithi ukuskena lwazi, i-firewall ziya kutshekishwa kunye software ekufuneka ukufumana ulwazi okanye ukuwuthumela. Loo inani iitshekhi kunye nemithetho elawula inkqubo yokukhuselwa ivumela abasebenzisi abanamava ukuba wenze ukukhuselwa PC yakho kwelona nqanaba liphezulu.

Firewall Zona

Kwi-Internet kukho iinkqubo ezininzi quick umxokozelo umxholo. Omnye wabo kuthiwa Zona. Le software ikuvumela ukuba ulande ezininzi movies, imidlalo-high speed okanye iinkqubo, kodwa abanye abasebenzisi bakhalazele ukuba inkqubo sele uyekile ukusebenza xa firewall ivuliwe, ubhekisela bug ekhoyo ukufikelela kumncedisi. Le ukungaphumeleli - ziziphumo nokusebenza kwinkqubo yokhuseleko.

Ukuze ukuba ucime kwekhusi, kodwa ukuba ukusebenza tracker, kufuneka utshintshe into. Ngoko nangoko emva kokuqinisekiswa ukukhusela iqwalasela ukuba inkqubo eyingozi - kule ndawo. Zokuqwalasela firewall inophawu ulwandiso, leyo ibizwa ngokuba "ngaphandle." Ukuze alungiselele umsebenzi lo mzingeli kwaye kukuphelisa isiphoso, kufuneka wenze ngazo ezi nketho efanayo. Useto Indawo zisenokwahluka ngokuxhomekeke kwinguqulelo kwikhusi kunye isibakala ukuba ingaba firmware okanye elikheswa.

umsebenzi screen

I-firewall imiselwe ukusombulula imisebenzi ethile ebaluleke gqitha. Yintoni umsebenzi wenziwa firewalls emva kokufakwa wayo?

• Umsebenzi wokuqala loo kukukhusela ngaphakathi kumsebenzi womnatha encinane, umzekelo, iinkampani nakweyiphi abazali yangaphandle. Kufuneka kuqatshelwe ukuba mqathango ukwahlula phakathi kubasebenzisi bangaphandle okanye zangaphakathi. Khangela kuya kuba efanayo njengoko abasebenzi zenkampani, amaqabane, kunye imigewu izama ukungena kwinethiwekhi.
• Olona phawu yesibini - lo ummiselo ukufikelela ngabasebenzisi yangaphakathi kwimithombo yangaphandle. Ngamanye amazwi, uyakwazi ukuqwalasela firewall ukuze ziyivalile evela iiPC phantsi kolawulo lwayo ukuba oovimba ukuba akukho ezifunekayo ukwenza loo msebenzi.

Kufuneka kuqatshelwe ukuba akukho okwangoku akukho uhlobo jikelele iinkqubo ezinjalo kunye nezixhobo.