Amaseva wommeleli asebenza njengomphathi phakathi kwemikhawulo emibili yokuxhumeka kwenethiwekhi yamakhasimende / iseva . I-proxy amaseva isikhombikubona ngezinhlelo zokusebenza zenethiwekhi, iziphequluli ezivame kakhulu kwiWebhu namaseva. Ngaphakathi kwamanethiwekhi ezinkampani, amaseva we-proxy afakwe kumadivayisi wangaphakathi (ase-intranet) akhethiwe ngokukhethekile. Abanikezeli Besevisi Ye-intanethi (i-ISPs) basebenzisa amaseva we-proxy njengengxenye yokuhlinzeka ngamasevisi enthanethi kumakhasimende abo. Okokugcina, isigaba samawebusayithi e-third party abanjwe ngamaseva e-web proxy atholakalayo ukuqeda abasebenzisi kwi-Inthanethi ngezikhathi zabo zokuphequlula iwebhu.
Izici eziphambili ze-Proxy Servers
Amaseva weproxy ngokuvamile ahlinzeka ngemisebenzi emithathu eyinhloko:
- ukwesekwa kwedatha yokuhlunga idatha yenethiwekhi
- ukwabelana kwenethiwekhi
- idokhumenti yedatha
Ama-proxy amaseva, izibhamu, nokuhlunga okuqukethwe
Amaseva wommeleli asebenza kuluhlu lwesicelo (ungqimba 7) we-OSI model. Ihluke kumathuluzi omlilo womnethiwekhi wendabuko osebenza ezingxenyeni eziphansi ze-OSI nokusekela ukuhlunga okuzimele kwesicelo. Amaseva wommeleli nawo kunzima kakhulu ukufaka nokulondoloza kunezingcingo, njengendlela yokusebenza kwe-proxy yesicelo ngasinye se-application njenge- HTTP , SMTP , noma i- SOCKS okumelwe ihlelwe ngabanye. Noma kunjalo, isiphakeli se-proxy elungiselelwe kahle ithuthukisa ukuphepha kwenethiwekhi nokusebenza kwamaprosesa asekelwe.
Abalawuli benethiwekhi bavame ukuhambisa kokubili isofthiwe ye-firewall nesofthiwe yeseva yommeleli ukusebenza kanzima, ukufaka kokubili isofthiwe ye- firewall ne-proxy server kuseva yenethiwekhi yesango .
Ngenxa yokuthi zisebenza kuluhlu lwesicelo se-OSI, ukuhlunga kwamaseva we-proxy kufanelana kakhulu nokuqhathaniswa nokwabantu abavamile. Isibonelo, amaseva we-Web proxy angabheka i- URL yezicelo eziphumayo zamakhasi eWebhu ngokuhlola imiyalezo ye-HTTP. Abalawuli benethiwekhi bangasebenzisa lesi sici sendawo ukufinyelela ezingeni ezingekho emthethweni kodwa bavumele ukufinyelela kwamanye amasayithi. Amaproseskitholi ajwayelekile we-network, ngokuphambene, akakwazi ukubona amagama wesizinda sewebhu ngaphakathi kwemiyalezo ye-HTTP. Ngokufanayo, ukuze uthole ukuhamba kwedatha engenayo, ama-routers ajwayelekile angahlungwa ngenombolo ye- port noma ikheli le-IP , kodwa amaseva we-proxy angabuye ahlunge ngokusekelwe kokuqukethwe kohlelo lokusebenza ngaphakathi kwemilayezo.
Ukuxhumeka kokuxhumana namaseva weProxy
Eminyakeni eminingi edlule, imikhiqizo yesofthiwe yesithathu ivame ukusetshenziselwa amanethiwekhi wekhaya ukuhlanganyela uxhumano lwe-inthanethi lwePC eyodwa namanye amakhompyutha. Ama- routers asekhaya asekhaya asehlinzeka ngemisebenzi yokwabelana nge- Inthanethi kumakhaya amaningi kunalokho. Emanethiwekhi ezinkampani, noma kunjalo, amaseva we-proxy asetshenziselwa ukusabalalisa uxhumano lwe-Intanethi kuma-routers amaningi namanethiwekhi wendawo ye-Intranet.
Ama-proxy amaseva kanye ne-caching
I-caching yamakhasi wewebhu ngamaseva we-proxy ingathuthukisa isipiliyoni somsebenzisi senethiwekhi ngezindlela ezintathu. Okokuqala, ukugcinwa kwekhompiyutha kungagcina umkhawulokudonsa kunethiwekhi, ukwandise ukusabalalisa kwayo. Okulandelayo, ukulondoloza isikhashana kungathuthukisa isikhathi sokuphendula esibhekene namakhasimende. Ngesilondolozi se-proxy ye-HTTP, isibonelo, amakhasi e-Web angalayisha ngokushesha kusiphequluli. Okokugcina, amasheya we-proxy amasheya akhulisa ukutholakala kokuqukethwe. Amakhophi wamakhasi eWebhu nokunye okuqukethwe okuyi-static ku-cache kuyafinyeleleka ngisho noma umthombo wangempela noma isixhumanisi senethiwekhi esiphakathi ungaxhunyiwe ku-intanethi. Njengoba isimo seWebhsayithi sinezinto eziguquguqukayo ezixhunywe nge-database, inzuzo ye-proxy caching iye yenqatshelwe ngokulinganayo eminyakeni edlule.
Amaseva weProxy Web
Ngenkathi amabhizinisi amaningi ehambisa amaseva e-proxy ngokomzimba axhumeke kumanethiwekhi abo wangaphakathi, amanethiwekhi amaningi asekhaya awawasebenzisi ngoba amakhaya asekhaya asebandleni abanikeza amandla okubamba umlilo kanye nokukwazi ukwabelana ngokuxhumana. Iklasi elihlukile lama-proxy amaseva okuthiwa ama- proxies eWeb ekhona avumela abasebenzisi ukuthi basebenzise izinzuzo zeseva ze-proxy ngisho nalapho inethiwekhi yabo yendawo ingabasekeli. Abasebenzisi be-intanethi bavame ukufuna amasevisi we-proxy web njengendlela yokwandisa ubumfihlo babo ngenkathi beya ku-intanethi, nakuba lezi zinsizakalo zinikeza ezinye izinzuzo futhi kufaka phakathi ukugcinwa kwemfihlo . Amanye amaseva we-proxy weWebhu akhululekile ukusebenzisa, kanti ezinye izimali zesevisi yokukhokha.
Okungaphezulu - Amaseva weProxy Aphezulu Awamagama Angaziwa