Iiseva ze proxy zisebenza njengomlamli phakathi kweziphelo ezimbini zomnatha womnatha / umncedisi womnatha . I-proxy iseva yomsebenzisi kunye nezicelo zonxibelelwano, eziqhelekileyo izikhangeli zewebhu kunye namaseva. Ngaphakathi kwamanethiwekhi eenkampani, amaseva encedisi afakwe kwiidivaysi zangaphakathi ezikhethiweyo zangaphakathi (intranet). Abanye ababoneleli ngeenkonzo ze-intanethi (ISPs) basebenzisa iiseva zeproxy njengenxalenye yokubonelela ngeenkonzo kwi-intanethi kubaxumi babo. Ekugqibeleni, uluhlu lwamacwebhsayithi abanjwe kwi-Web ebizwa ngokuba yi-server proxy isebenza ukuba abone ukuphela kwabasebenzisi kwi-intanethi kwiiseshoni zabo zokukhangela kwiWebhu.
Iimpawu eziphambili zeeNkonzo zeeNkonzo
Iiservisi ze proxy zinikezela ngemisebenzi emithathu eyintloko:
- ukuxhaswa kwedatha yokuncedisa idatha
- ukwabelana kwenethiwekhi
- caching data
IiNkonzo zeeNcedisi, iiFowuni, kunye nokuHlanywa koQhagamshelwano
Iiseva ze proxy zisebenza kwinqanaba lesicelo (uluhlu lwe-7) lwe-OSI. Ziyahluke kwiindawo zomlilo zomnatha ezisebenza kwiindawo eziphantsi ze-OSI kunye nenkxaso yokuzihluma ezizimele. Iiseva ze proxy nazo zinzima kakhulu ukufaka nokugcina kunezikhuni, njengendlela yokusebenza kweproxy kwinkqubo nganye yesicelo njengeHTTP , SMTP , okanye i- SOCKS kufuneka iqwalaselwe ngabanye. Nangona kunjalo, iseva yommeleli oqulunqwe kakuhle iphucula ukhuseleko lomnatha kunye nokusebenza kwiiprotokholi ezijoliswe kuyo.
Abalawuli benethiwekhi bahlala bechitha zombini isofthiwe ye-firewall kunye nesofthiwe ye-proxy iseva ukusebenza kwinqanaba, ukufaka ifowuni kunye nesofthiwe ye-proxy kwiseva yesango lomnatha .
Ngenxa yokuba basebenza kwisakhiwo se-OSI Isicelo, ukukwazi ukuhlunga kwamaseva eproxy kufana neyona ndlela yinkcazo ngokuthelekiswa kunye nee-routers eziqhelekileyo. Ngokomzekelo, ii-proxy zeewebhu ziyakwazi ukujonga i- URL yezicelo eziphumayo kumaphepha eWebhu ngokuhlola imiyalezo ye-HTTP. Abalawuli benethiwekhi bangasebenzisa ukufikelela kwibha yomgangatho kwiindawo ezingekho mthethweni kodwa bavumele ukufikelela kwezinye iisayithi. Iimfestile eziqhelekileyo zomnatha, ngokuchaseneyo, azikwazi ukubona amagama e-Web domain ngaphakathi kwemiyalezo yesicelo se-HTTP. Ngokufanayo, kwi-traffic data engenayo, ii-routers eziqhelekileyo zingacoca ngefowuni kwinombolo ye-IP okanye idilesi ye-IP , kodwa ii-proxy iseva ziyakucoca kwakhona ngokusekelwe kumxholo wesicelo ngaphakathi kwemiyalezo.
Ukwabelana ngokuxhambelana neeNkqubo zeeNkonzo
Kwiminyaka emininzi edlulileyo, iimveliso zesofthiwe zenkampani yesithathu zaziqhelekileyo zisetyenziselwa kumanethiwekhi asekhaya ukuxhamla uxhumano lwe-intanethi yekhompyutha kunye nezinye iikhomputha. Iibarta zasebandlunkulu ezisetyenziselwe ukubonelela ngoku kunxibelelana kwe-intanethi kwimininzi kunokuba kunamakhaya. Kwiintanethi zenkampani, nangona kunjalo, iiseva zamaseyile zisasetyenziswa ngokuqhelekileyo ukusabalalisa iinkonzo ze-intanethi kwii-routers ezininzi kunye neenethiwekhi zangaphakathi ze-intranet.
IiNkonzo zeeNkonzo kunye neCaching
I-caching yamaphepha ewebhu ngamaseva e-proxy inokuphucula amava omsebenzisi womnatha ngeendlela ezintathu. Okokuqala, ukugcinwa kwe-caching kungagcina i-bandwidth kwintanethi, kwandise ukusabalaliswa kwayo. Okulandelayo, ukugcinwa kwe-caching kunokuphucula ixesha lokuphendula elijongene nabaxhasi. Ngomgca we-proxy ye-HTTP, umzekelo, iiWebhu ziza kulayisha ngokukhawuleza kwi-browser. Ekugqibeleni, i-proxy server caches iyanda ukufumaneka kokuqukethwe. Iikopi zephepha lewebhu kunye nezinye iziqulatho ezisemgangathweni kwi-cache zihlala zifikeleleka nangona umthombo wokuqala okanye umnxibelelwano wenethiwekhi ophakathi ungahambanga kwi-intanethi. Ngendlela yokwenza iiWebhsayithi kwizinto ezixhasiweyo ze-database, inzuzo ye-proxy caching iye yehla ngokuthelekiswa neminyaka edlulileyo.
IiNkonzo zeeNkqubo zeeWebhu
Nangona amashishini amaninzi adlulisela iinkonzo zamaseyile ezixhunyiwe kumanethiwekhi angaphakathi, amaninzi amanethiwekhi asemakhaya awawasebenzisi ngenxa yokuba iir router zasekhaya zihambisa i- firewall ebalulekileyo kunye nokukwazi ukwabelana ngolwazi. Iklasi ehlukeneyo yamaseva aseproxy abizwa ngokuba yi- Web proxyes evumela ukuba abasebenzisi basebenzise inzuzo kwezinye iinkonzo ze-proxy ngethuba inethiwekhi yabo yangasese ayibaxhasi. Abasebenzisi be-Intanethi baninzi bafuna iinkonzo ze-proxy zewebhu njengendlela yokwandisa ubumfihlo babo ngelixa besesha kwi-intanethi, nangona ezi nkonzo zinikeza ezinye iindzuzo ezibandakanya ukugcinwa kwe-caching . Ezinye ii-server ze proxy zikhululekile ukusebenzisa, ngelixa ezinye iintlawulo zenkonzo zentlawulo.
Okuninzi - Iiprojekti zeProtexy ezingabonakaliyo eziphezulu