Momwe mungamvetsetsere ngati ma proxies akunama: kutsimikizira komwe kuli ma proxies a netiweki pogwiritsa ntchito algorithm ya geolocation

Anthu padziko lonse lapansi amagwiritsa ntchito ma proxis kuti abise malo awo enieni kapena kuti ndi ndani. Izi zitha kuchitika kuti athetse mavuto osiyanasiyana, kuphatikiza kupeza zidziwitso zoletsedwa kapena kuonetsetsa zachinsinsi.

Koma kodi opereka ma proxies amenewa ali olondola bwanji ponena kuti ma seva awo ali m’dziko linalake? Ili ndi funso lofunika kwambiri, yankho lomwe limatsimikizira ngati ntchito inayake ingagwiritsidwe ntchito ndi makasitomala omwe akukhudzidwa ndi kutetezedwa kwa zidziwitso zaumwini.

Gulu la asayansi aku America ochokera ku mayunivesite aku Massachusetts, Carnegie Mellon ndi Stony Brook lofalitsidwa. kuphunzira, pomwe malo enieni a ma seva a asanu ndi awiri opereka proxy otchuka adafufuzidwa. Takonzekera mwachidule zotsatira zazikulu.

Mau oyamba

Ogwiritsa ntchito ma projekiti nthawi zambiri samapereka chidziwitso chilichonse chomwe chingatsimikizire zonena zawo zokhudzana ndi malo a seva. Ma database a IP-to-location nthawi zambiri amathandizira zotsatsa zamakampani otere, koma pali umboni wokwanira wa zolakwika m'madatabase awa.

Pa kafukufukuyu, asayansi aku America adawunika malo omwe ali ndi ma seva oyimira 2269 omwe amagwiritsidwa ntchito ndi makampani asanu ndi awiri a proxy ndipo ali m'maiko ndi madera a 222. Kuwunikaku kunawonetsa kuti pafupifupi gawo limodzi mwa magawo atatu a ma seva onse sapezeka m'maiko omwe makampani amati muzinthu zawo zotsatsa. M'malo mwake, ali m'mayiko omwe ali ndi malo otsika mtengo komanso odalirika: Czech Republic, Germany, Netherlands, UK ndi USA.

Kusanthula Kwamalo a Seva

Zamalonda za VPN ndi operekera proxy angakhudze kulondola kwa ma IP-to-location databases - makampani ali ndi mphamvu zowonongeka, mwachitsanzo, zizindikiro za malo mu mayina a router. Zotsatira zake, zida zotsatsa zitha kutengera malo ambiri omwe amapezeka kwa ogwiritsa ntchito, pomwe zenizeni, kuti asunge ndalama ndikuwongolera kudalirika, ma seva amakhala m'maiko ochepa, ngakhale ma database a IP-to-location akunena mosiyana.

Kuti muwone komwe kuli ma seva, ofufuzawo adagwiritsa ntchito algorithm yogwira ntchito ya geolocation. Anagwiritsidwa ntchito kuwunika ulendo wobwerera wa paketi yotumizidwa ku seva ndi makamu ena odziwika pa intaneti.

Panthawi imodzimodziyo, osachepera 10% a ma proxies oyesedwa amayankha ping, ndipo pazifukwa zomveka, asayansi sakanatha kuyendetsa pulogalamu iliyonse yoyezera pa seva yokha. Iwo anali ndi luso lotha kutumiza mapaketi kupyolera mu proxy, kotero ulendo wobwerera ku malo aliwonse mumlengalenga ndi chiwerengero cha nthawi yomwe imatengera paketi kuti ipite kuchokera kwa oyesa mayeso kupita ku proxy ndi kuchokera ku proxy kupita komwe akupita.

Pakafukufukuyu, mapulogalamu apadera adapangidwa kutengera njira zinayi za geolocation: CBG, Octant, Spotter ndi hybrid Octant/Spotter. Solution kodi zilipo pa GitHub.

Popeza kunali kosatheka kudalira deta ya IP-to-location, chifukwa cha zoyesera zomwe ofufuza anagwiritsa ntchito mndandanda wa RIPE Atlas wa makamu a nangula - zambiri zomwe zili mu databaseyi zimapezeka pa intaneti, zimasinthidwa nthawi zonse, ndipo malo olembedwa ndi olondola, komanso. , omwe ali pamndandandawo amatumizirana ma sign a ping kwa wina ndi mnzake ndikusintha ma data paulendo wobwerera m'nkhokwe ya anthu.

Yopangidwa ndi asayansi athanzi, ndi pulogalamu yapaintaneti yomwe imakhazikitsa kulumikizana kotetezeka (HTTPS) TCP pa doko losatetezedwa la HTTP 80. Ngati seva simvera pa doko ili, ndiye kuti idzalephera pambuyo pa pempho limodzi, komabe, ngati seva ikumvetsera. padoko ili, msakatuli alandila yankho la SYN- ACK ndi TLS ClientHello paketi. Izi ziyambitsa cholakwika cha protocol ndipo msakatuli awonetsa cholakwikacho, koma pakangopita ulendo wachiwiri.

Mwanjira iyi, pulogalamu yapaintaneti imatha nthawi imodzi kapena ziwiri kuzungulira. Ntchito yofananayi idakhazikitsidwa ngati pulogalamu yokhazikitsidwa kuchokera pamzere wolamula.

Palibe m'modzi mwa omwe adayesedwa omwe amawulula komwe kuli ma seva awo oyimira. Koposa zonse, mizinda imatchulidwa, koma nthawi zambiri pamakhala zambiri zokhudza dzikolo. Ngakhale mzinda ukatchulidwa, zochitika zimatha kuchitika - mwachitsanzo, ochita kafukufuku adafufuza fayilo ya kasinthidwe ya seva imodzi yotchedwa usa.new-york-city.cfg, yomwe ili ndi malangizo olumikizirana ndi seva yotchedwa chicago.vpn-provider. chitsanzo. Kotero, mochuluka kapena mocheperapo, mungathe kutsimikizira kuti sevayo ndi ya dziko linalake.

Zotsatira

Kutengera zotsatira za mayeso pogwiritsa ntchito algorithm yogwira ntchito ya geolocation, ofufuzawo adatha kutsimikizira malo a 989 mwa ma adilesi 2269 a IP. Pankhani ya 642, izi sizikanatheka, ndipo 638 sali m'dziko limene ayenera kukhala, malinga ndi kutsimikiziridwa kwa mautumiki a proxy. Oposa 400 mwa maadiresi onyengawa ali mu kontinenti imodzi ndi dziko lomwe lalengezedwa.

Maadiresi olondola ali m'mayiko omwe amagwiritsidwa ntchito nthawi zambiri kuchititsa maseva (dinani pachithunzichi kuti mutsegule kukula kwathunthu)

Okhala okayikitsa adapezeka pa aliyense wa asanu ndi awiri omwe adayesedwa. Ofufuzawo adafuna ndemanga kuchokera kumakampani, koma onse adakana kulumikizana.

Source: www.habr.com