Zaka zingapo zapitazo, gulu lapadziko lonse la asayansi ochokera ku mayunivesite a Massachusetts, Pennsylvania ndi Munich, Germany. kafukufuku pakuchita bwino kwa ma proxies achikhalidwe ngati chida chotsutsa kuwunika. Zotsatira zake, asayansi adakonza njira yatsopano yolambalala kutsekereza, kutengera chiphunzitso chamasewera. Takonza zomasulira mfundo zazikulu za ntchitoyi.
Mau oyamba
Njira ya zida zodziwika bwino za block-bypass ngati Tor zimatengera kugawa kwachinsinsi komanso kusankha kwa ma adilesi a IP pakati pa makasitomala ochokera kumadera omwe atsekeredwa. Chotsatira chake, makasitomala ayenera kukhala osazindikirika ndi mabungwe kapena akuluakulu omwe amaika midadada. Pankhani ya Tor, ogawa ma proxy awa amatchedwa milatho.
Vuto lalikulu ndi mautumiki oterowo ndi kuwukira kwa anthu amkati. Oletsa amatha kugwiritsa ntchito ma proxies okha kuti adziwe ma adilesi awo ndikuwaletsa. Kuti muchepetse mwayi wowerengera ma proxy, zida za block bypass zimagwiritsa ntchito njira zosiyanasiyana zogawira ma adilesi.
Pankhaniyi, njira yomwe imatchedwa ad hoc heuristics imagwiritsidwa ntchito, yomwe imatha kuzunguliridwa. Kuti athetse vutoli, asayansi adaganiza zowonetsa kulimbana pakati pa mautumiki omwe akukhudzidwa ndi kutsekereza ndi ntchito kuti zilambalale ngati masewera. Pogwiritsa ntchito chiphunzitso chamasewera, adapanga njira zabwino zoyendetsera gulu lililonse - makamaka, izi zidapangitsa kuti pakhale njira yogawa ma proxy.
Momwe machitidwe achikhalidwe amagwirira ntchito
Tsekani zida zodutsa ngati Tor, Lantern, ndi Psiphon amagwiritsa ntchito ma proxies akunja omwe ali ndi zoletsa zomwe zimagwiritsidwa ntchito kupatutsa kuchuluka kwa ogwiritsa ntchito m'magawo amenewo ndikuzipereka kuzinthu zotsekedwa.
Ngati ma censors adziwa ma adilesi a IP a proxy yotere - mwachitsanzo, atagwiritsa ntchito okha - amatha kulembedwa ndikutsekedwa mosavuta. Chifukwa chake, zenizeni, ma adilesi a IP a ma proxies oterowo samawululidwa, ndipo ogwiritsa ntchito amapatsidwa projekiti imodzi kapena ina pogwiritsa ntchito njira zosiyanasiyana. Mwachitsanzo, Tor ili ndi dongosolo la mlatho.
Ndiko kuti, ntchito yayikulu ndikupatsa ogwiritsa ntchito mwayi wopeza zinthu zotsekedwa ndikuchepetsa mwayi wowululira adilesi ya proxy.
Kuthetsa vutoli pochita sikophweka - ndizovuta kwambiri kusiyanitsa molondola ogwiritsa ntchito wamba kuchokera ku ma censors omwe amawajambula. Njira za heuristic zimagwiritsidwa ntchito kubisa zambiri. Mwachitsanzo, Tor imachepetsa kuchuluka kwa ma adilesi a IP omwe amaperekedwa kwa makasitomala kukhala atatu pa pempho lililonse.
Izi sizinalepheretse akuluakulu aku China kuzindikira milatho yonse ya Tor posachedwa. Kukhazikitsidwa kwa zoletsa zina kudzakhudza kwambiri kugwiritsidwa ntchito kwa block bypass system, ndiko kuti, ogwiritsa ntchito ena sangathe kupeza projekiti.
Momwe chiphunzitso chamasewera chimathetsera vutoli
Njira yofotokozedwa mu ntchitoyi imachokera ku zomwe zimatchedwa "masewera ovomerezeka a koleji". Kuphatikiza apo, zimaganiziridwa kuti othandizira owunika pa intaneti amatha kulumikizana wina ndi mnzake munthawi yeniyeni ndikugwiritsa ntchito njira zovuta - mwachitsanzo, osatsekereza ma proxies nthawi yomweyo kapena kuchita nthawi yomweyo kutengera mikhalidwe yosiyanasiyana.
Kodi kuvomerezedwa ku koleji kumagwira ntchito bwanji?
Tinene kuti tili ndi n ophunzira ndi m makoleji. Wophunzira aliyense amadzipangira yekha mndandanda wa zomwe amakonda pakati pa mabungwe ophunzirira kutengera njira zina (ndiko kuti, makoleji okhawo omwe zikalata zatumizidwa ndi omwe amasankhidwa). Kumbali ina, makoleji amayikanso ophunzira omwe apereka zikalata malinga ndi zomwe amakonda.
Choyamba, koleji imadula iwo omwe sakwaniritsa zosankhidwa - sangavomerezedwe ngakhale atakhala ochepa. Kenako ofunsira amasankhidwa pogwiritsa ntchito algorithm yomwe imaganizira zofunikira.
N'zotheka kuti pangakhale "kuvomerezedwa kosakhazikika" - mwachitsanzo, ngati pali ophunzira awiri 1 ndi 2 omwe adalandiridwa ku koleji a ndi b motsatira, koma wophunzira wachiwiri akufuna kuphunzira ku yunivesite a. Pankhani ya kuyesa kofotokozedwa, kugwirizana kokha kokhazikika pakati pa zinthu kumaganiziridwa.
Kuchedwa Kuvomereza Algorithm
Monga tanenera kale, pali ophunzira angapo omwe koleji sidzawavomera muzochitika zilizonse. Chifukwa chake, ma algorithm omwe adachedwetsedwa akuganiza kuti ophunzirawa saloledwa kulembetsa ku sukuluyi. Pankhaniyi, ophunzira onse amayesa kulowa m'makoleji omwe amakonda kwambiri.
Bungwe lomwe lili ndi mphamvu ya ophunzira a q limalemba anthu omwe ali paudindo wapamwamba kwambiri malinga ndi zomwe akufuna, kapena onse ngati chiwerengero cha olembetsa chili chocheperapo ndi malo omwe alipo. Ena onse amakanidwa, ndipo ophunzirawa amafunsira ku yunivesite yotsatira pamndandanda wazokonda. Koleji iyi imasankhanso ophunzira apamwamba kwambiri kuchokera kwa omwe adalembetsa nthawi yomweyo ndi omwe sanavomerezedwe ku koleji yoyamba. Komanso, chiwerengero china cha anthu sichidutsa.
Njirayi imatha ngati wophunzira aliyense ali pamndandanda wodikirira kukoleji ina kapena wakanidwa m'masukulu onse omwe angalembetse. Zotsatira zake, makoleji amavomereza aliyense pamndandanda wawo wodikirira.
Kodi proxy ikukhudzana bwanji nazo?
Pofananiza ndi ophunzira ndi makoleji, asayansi adapereka projekiti yapadera kwa kasitomala aliyense. Zotsatira zake zinali masewera otchedwa proxy assignment game. Makasitomala, kuphatikiza othandizira owerengera, amakhala ngati ophunzira omwe akufuna kudziwa ma adilesi a proxies, omwe amasewera gawo la makoleji - ali ndi bandwidth yodziwika pasadakhale.
Muchitsanzo chofotokozedwa pali n ogwiritsa (makasitomala) A =
{a1, a2, ..., an}, yomwe imapempha mwayi wofikira ku proxy kuti idutse kutsekereza. Chifukwa chake, ai ndiye chizindikiritso cha kasitomala "wokwanira". Pakati pa ogwiritsa ntchito n awa, m ndi ma censor agents, omwe amatchulidwa kuti J = {j1, j2, ..., jm}, ena onse ndi ogwiritsa ntchito wamba. Othandizira onse amayendetsedwa ndi akuluakulu akuluakulu ndipo amalandira malangizo kuchokera kwa iwo.
Zimaganiziridwanso kuti pali ma proxies P = {p1, p2, ..., pl}. Pambuyo pempho lililonse, kasitomala amalandira zambiri (IP adilesi) za k proxies kuchokera ku chinthu chogawa. Nthawi imagawidwa m'magawo-magawo, otchedwa t (masewera akuyamba pa t = 0).
Wothandizira aliyense amagwiritsa ntchito scoring kuti aunikire proxy. Asayansi adagwiritsa ntchito 
kuti mulembe zigoli zomwe wogwiritsa ntchitoyo wapatsidwa proxy px pa siteji t. Momwemonso, proxy iliyonse imagwiritsa ntchito ntchito kuti iwunikire makasitomala. Ndiko kuti ndi mphambu yomwe proxy px idaperekedwa kwa kasitomala ai pa siteji t.
Ndikofunika kukumbukira kuti masewera onsewa ndi enieni, ndiye kuti, "wogawa" mwiniwakeyo amasewera m'malo mwa proxy ndi makasitomala. Kuti achite izi, sayenera kudziwa mtundu wa kasitomala kapena zomwe amakonda ponena za ma proxies. Pa gawo lililonse pali masewera, ndipo kuchedwa kuvomereza algorithm imagwiritsidwanso ntchito.
Zotsatira
Malinga ndi zotsatira zofananira, njira yogwiritsira ntchito chiphunzitso chamasewera idawonetsa kuchita bwino kwambiri poyerekeza ndi machitidwe odziwika a loko yolowera.
Poyerekeza ndi ntchito ya rBridge VPN
Nthawi yomweyo, asayansi apeza mfundo zingapo zofunika zomwe zingakhudze magwiridwe antchito a machitidwe awa:
- Mosasamala kanthu za njira ya censors, dongosolo logonjetsa kutsekereza liyenera kusinthidwa nthawi zonse ndi ma proxies atsopano, mwinamwake mphamvu yake idzachepa.
- Ngati ma censor ali ndi zofunikira kwambiri, amatha kukulitsa luso lotsekereza powonjezera ma proxy omwe amagawidwa m'malo.
- Kuthamanga komwe ma proxies atsopano akuwonjezeredwa ndikofunika kwambiri kuti dongosololi ligonjetse kutsekereza.
Zothandiza maulalo ndi zipangizo kuchokera :
Source: www.habr.com