{"id":35704,"date":"2019-10-31T22:05:50","date_gmt":"2019-10-31T19:05:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/proekt-salmon-kak-effektivno-protivostoyat-internet-tsenzure-s-pomoshhyu-proksi-s-urovnyami-doveriya-polzovatelyam\/"},"modified":"2019-10-31T22:05:50","modified_gmt":"2019-10-31T19:05:50","slug":"proekt-salmon-kak-effektivno-protivostoyat-internet-tsenzure-s-pomoshhyu-proksi-s-urovnyami-doveriya-polzovatelyam","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/proekt-salmon-kak-effektivno-protivostoyat-internet-tsenzure-s-pomoshhyu-proksi-s-urovnyami-doveriya-polzovatelyam","title":{"rendered":"Projekt Salmon: kuidas t\u00f5husalt vastanduda internetitsensuurile usaldustaseme proxyde abil","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/infatica\/blog\/457442\/\"><img decoding=\"async\" alt=\"Projekt Salmon: kuidas t\u00f5husalt vastanduda internetitsensuurile usaldustaseme proxyde abil\" src=\"\/wp-content\/uploads\/2019\/06\/8bf307f2455fee6499c03112df839b68.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>Paljude riikide valitsused piiravad oma kodanike juurdep\u00e4\u00e4su teabele ja teenustele internetis. Sellise tsensuuri vastu v\u00f5itlemine on oluline ja keeruline \u00fclesanne. Lihtsad lahendused ei suuda tavaliselt kiidelda k\u00f5rge usaldusv\u00e4\u00e4rsuse v\u00f5i pikaajalise t\u00f5hususega. Keerukamad blokeeringute \u00fcletamise meetodid omavad kasutusmugavuse, madala j\u00f5udluse v\u00f5i ei s\u00e4ilitada interneti kasutamise kvaliteeti vajalikul tasemel.<\/p>\n<p>Ameerika teadlaste r\u00fchm Illinois' \u00fclikoolist <noindex><a rel=\"nofollow\" href=\"https:\/\/censorbib.nymity.ch\/pdf\/Douglas2016a.pdf\">arendas<\/a><\/noindex> uus meetod blokeeringute \u00fcletamiseks, mis p\u00f5hineb proksitehnoloogia kasutamisel ning kasutajate usaldusv\u00e4\u00e4rsuse taseme j\u00e4rgi segmentimisel, et tuvastada efektiivselt agendid, kes t\u00f6\u00f6tavad tsensorite heaks. Esitleme teile selle t\u00f6\u00f6 peamisi v\u00e4iteid.<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>L\u00e4henemise kirjeldus<\/h2>\n<p>\nTeadlased on v\u00e4lja t\u00f6\u00f6tanud t\u00f6\u00f6riista Salmon \u2013 see on proksiserverite s\u00fcsteem, mida haldavad vabatahtlikud riikidest, kus interneti kasutusele ei ole piiranguid. Selleks, et kaitsta neid servereid tsensorite poolt blokeerimise eest, kasutab s\u00fcsteem spetsiaalset algoritmi, et m\u00e4\u00e4rata kasutajatele usaldusv\u00e4\u00e4rsuse tase. <\/p>\n<p>Meetod eeldab tsensorite potentsiaalsete agentide paljastamist, kes esituvad tavaliste kasutajatena, et teada saada proksiservera IP-aadress ja blokeerida see. Lisaks sellele, <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%90%D1%82%D0%B0%D0%BA%D0%B0_%D0%A1%D0%B8%D0%B2%D0%B8%D0%BB%D0%BB%D1%8B\">toimub vastupanu<\/a><\/noindex> Sivilla r\u00fcnnakutele s\u00fcsteemis registreerimise puhul, n\u00f5utakse, et kasutaja esitab linki kehtivale sotsiaalmeedia kontole v\u00f5i saab soovituse kasutajalt, kelle usaldusv\u00e4\u00e4rsuse tase on k\u00f5rge.<\/p>\n<h2>Kuidas see t\u00f6\u00f6tab<\/h2>\n<p>\nEeldatakse, et tsensor on valitsuse kontrolli all olev organ, millel on v\u00f5imalus v\u00f5tta kontrolli alla iga marsruuter riigis. Samuti eeldatakse, et tsensori \u00fclesanne on blokeerida juurdep\u00e4\u00e4s teatud ressurssidele, mitte tuvastada kasutajaid edasiseks arreteerimiseks. S\u00fcsteem ei suuda sellist arengut v\u00e4ltida \u2013 riigil on hulk v\u00f5imalusi teada saada, milliseid teenuseid kodanikud kasutavad. \u00dcks neist on honeypot-serverite kasutamine kommunikatsioonide pealtkuulamiseks.<\/p>\n<p>Samuti eeldatakse, et riigil on m\u00e4rkimisv\u00e4\u00e4rsed ressursid, sealhulgas inimressursid. Tsensor v\u00f5ib lahendada \u00fclesandeid, mis vajavad sadu ja tuhandeid t\u00e4iskohaga t\u00f6\u00f6tajaid. <\/p>\n<p>Veel m\u00f5ned p\u00f5hiteesid:<\/p>\n<ul>\n<li>S\u00fcsteemi \u00fclesanne on v\u00f5imaldada blokeeringute \u00fcletamist (st. pakkuda IP-aadresse proksiserveritele) k\u00f5igile kasutajatele, kes elavad piirkondades, kus on veebitsensuur. <\/li>\n<li>K\u00fcberturbeagentuuride ja institutsioonide tsensorid v\u00f5ivad proovida s\u00fcsteemiga liituda tavaliste kasutajate n\u00e4oliselt. <\/li>\n<li>Tsensor v\u00f5ib blokeerida iga proksiserveri, mille aadress talle teada saab. <\/li>\n<li>S\u00fcsteemi Salmon korraldajad m\u00f5istavad sel juhul, et tsensor on mingil viisil teada saanud serveri aadressi.<\/li>\n<\/ul>\n<p>\nK\u00f5ik see viib meid kolme v\u00f5tmeelemendi kirjeldamiseni blokeeringute \u00fcletamise s\u00fcsteemis. <\/p>\n<ol>\n<li>S\u00fcsteem arvutab t\u00f5en\u00e4osuse, et kasutaja on k\u00fcberturbeagentuuride agent. Selgete t\u00f5endite alusel k\u00f5rvaldavad nad sellised kasutajad. <\/li>\n<li>Igal kasutajal on usaldusv\u00e4\u00e4rsuse tase, mille tuleb saavutada. K\u00f5ige k\u00f5rgema j\u00f5udlusega proksiserverid on eraldatud kasutajatele, kellel on k\u00f5rgeimad usaldusv\u00e4\u00e4rsuse tasemed. Lisaks aitab see eristada usaldusv\u00e4\u00e4rseid, t\u00f5estatud kasutajaid algajatest, kuna just algajate seas on tsensoreid k\u00f5ige t\u00f5en\u00e4olisemalt. <\/li>\n<li>K\u00f5rge usaldusv\u00e4\u00e4rsuse tasemega kasutajad saavad kutsuda s\u00fcsteemi uusi kasutajaid. L\u00f5ppkokkuv\u00f5ttes moodustub usaldusv\u00e4\u00e4rsete kasutajate sotsiaalne graafik.<\/li>\n<\/ol>\n<p>\nK\u00f5ik on loogiline: tsensor peab tavaliselt blokeerima proksiserveri siin ja praegu, ta ei oota pikka aega, et proovida oma agentide kontode 't\u00f5stmiseks' s\u00fcsteemis. Samuti on selge, et uued kasutajad v\u00f5ivad alguses saada erineva usaldusv\u00e4\u00e4rsuse taseme - n\u00e4iteks projektijuhtide s\u00f5prade ja sugulaste seas on v\u00e4iksem t\u00f5en\u00e4osus, et nad teevad koost\u00f6\u00f6d tsensuuriga riikidega.<\/p>\n<h2>Usaldusv\u00e4\u00e4rsuse tasemed: rakenduse \u00fcksikasjad<\/h2>\n<p>\nUsaldusv\u00e4\u00e4rsuse tase on mitte ainult kasutajatel, vaid ka proksiserveritel. S\u00fcsteem m\u00e4\u00e4rab kasutajale kindla usaldusv\u00e4\u00e4rsuse taseme serveri, mille usaldusv\u00e4\u00e4rsuse tase on sama. Sel juhul v\u00f5ib kasutajate usaldusv\u00e4\u00e4rsuse tase nii t\u00f5usta kui ka langeda, kuid serverite puhul see ainult kasvab.<\/p>\n<p>Iga kord, kui tsensoreid blokeerivad serveri, millega kindel kasutaja on t\u00f6\u00f6tanud, langeb tema usaldustase. Usaldus t\u00f5useb, kui serverit ei blokeerita pikka aega \u2013 iga uue taseme puhul vajaliku aja kahekordistub: et liikuda tasemelt n tasemele n+1, on vaja 2n+1 p\u00e4eva katkestusteta t\u00f6\u00f6tamise jaoks proksi-serveri. Teekond maksimaalsele, kuuendale, usaldustasemele v\u00f5tab rohkem kui kaks kuud.<\/p>\n<p><img decoding=\"async\" alt=\"Projekt Salmon: kuidas t\u00f5husalt vastanduda internetitsensuurile usaldustaseme proxyde abil\" src=\"\/wp-content\/uploads\/2019\/06\/cd7b312c0bb011ae0e04cbae0ef3f3e4.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nNii kaua n\u00e4rves\u00f6\u00f6v ooteaeg, et v\u00e4lja selgitada parimate proksi-serverite aadressid, on \u00e4\u00e4rmiselt t\u00f5hus tsensuuri vastane meede. <\/p>\n<p>Serveri usaldustase on minimaalne usaldustase, mille on talle andnud kasutajad. N\u00e4iteks, kui uus server s\u00fcsteemis antakse kasutajatele, kelle minimaalne hinne on 2, siis saab ka proksi sellise hinne. Kui seej\u00e4rel hakkab serverit kasutama inimene, kelle hinne on 3, kuid ringis on ikka veel kasutajaid teiselt tasemelt, on serveri hinne 2. Kui aga k\u00f5ik serveri kasutajad t\u00f5stavad oma taset, t\u00f5useb see ka proksi jaoks. Samas ei saa server usaldustaset kaotada; vastupidi, kui see blokeeritakse, karistatakse kasutajaid.<\/p>\n<p>K\u00f5rge usaldustasemega kasutajad saavad kahte t\u00fc\u00fcpi preemiaid. Esiteks, serverid ei ole k\u00f5ik \u00fchesugused. On minimaalsetele n\u00f5uetele vastav l\u00e4bipaindlikkus (100 Kbit\/s), kuid serveri vabatahtlik omanik v\u00f5ib pakkuda ka rohkem \u2013 \u00fclemist piiri ei ole. Salmoni s\u00fcsteem valib parimad serverid k\u00f5ige k\u00f5rgema reitinguga kasutajatele. <\/p>\n<p>Lisaks on k\u00f5rge usaldustasemega kasutajad paremini kaitstud tsensori r\u00fcnnakute eest, kuna tsensor peab ootama kuukaupa, et v\u00e4lja selgitada proksi aadress. L\u00f5ppkokkuv\u00f5ttes on serverite blokeerimise t\u00f5en\u00e4osus k\u00f5rge riski kasutajatele mitu korda madalam kui madala usaldustaseme omanikelt.<\/p>\n<p>Et v\u00f5imaldada parimatele proksi-serveritele \u00fchineda v\u00f5imalikult paljude v\u00e4\u00e4rikate kasutajatega, on Salmoni loojad v\u00e4lja t\u00f6\u00f6tanud soovituss\u00fcsteemi. K\u00f5rge reitinguga kasutajad (L) saavad kutsuda oma s\u00f5pru platvormile liituma. Kutsutud inimesed saavad hinne L-1.<\/p>\n<p>Soovituss\u00fcsteem t\u00f6\u00f6tab lainetena. Esimese laine kutsutud kasutajad saavad oma s\u00f5pru kutsuda alles umbes neli kuud hiljem. Teise ja j\u00e4rgmise laine kasutajad peavad ootama 2 kuud.<\/p>\n<h2>S\u00fcsteemi moodulid <\/h2>\n<p>\nS\u00fcsteem koosneb kolmest koostisosast:<\/p>\n<ul>\n<li>Salmoni klient Windowsile;<\/li>\n<li>serveri deemoniprogramm, mille paigaldavad vabatahtlikud (Windowsi ja Linuxi versioonid);<\/li>\n<li>Keskandmebaasi server, mis salvestab k\u00f5igi proksiserverite andmed ja haldab IP-aadresside jaotust kasutajate vahel.<\/li>\n<\/ul>\n<p><img decoding=\"async\" alt=\"Projekt Salmon: kuidas t\u00f5husalt vastanduda internetitsensuurile usaldustaseme proxyde abil\" src=\"\/wp-content\/uploads\/2019\/06\/b75fa9250df9c7d97e939bd01f8e1f97.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<i>S\u00fcsteemi kliendirakenduse liides<\/i><\/p>\n<p>Selleks, et s\u00fcsteemist kasu saada, peab inimene looma konto Facebooki kasutajakonto abil.<\/p>\n<h2>Kokkuv\u00f5te <\/h2>\n<p>\nPraegu ei ole Salmoni meetod laialdaselt levinud, on teada vaid m\u00f5ned v\u00e4ikesed pilootprojektid kasutajatele Iraagis ja Hiinas. Kuigi see on huvitav projekt, ei taga see t\u00e4ielikku anon\u00fc\u00fcmsust ega vabatahtlike kaitset, ja projekti loomine tunnistab ise, et see on vastuv\u00f5tlik honeypot-teenuste r\u00fcnnakutele. Sellegipoolest paistab usalduse tasemete s\u00fcsteemi rakendamine huvitava eksperimendina, millel v\u00f5ib olla j\u00e4tk. <\/p>\n<p>T\u00e4na on k\u00f5ik, ait\u00e4h t\u00e4helepanu eest!<\/p>\n<h2>Kasulikud lingid ja materjalid <noindex><a rel=\"nofollow\" href=\"https:\/\/infatica.io\">Infatica<\/a><\/noindex>:<\/h2>\n<p><\/p>\n<ul>\n<li><noindex>Eksperiment: kas on v\u00f5imalik v\u00e4hendada DoS-r\u00fcnnakute negatiivseid tagaj\u00e4rgi l\u00e4bi proxy-keskkonna<\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/infatica\/blog\/453168\/\">Uuring: blokeerimisele vastupidava proxy-teenuse loomine m\u00e4nguteooria abil<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/infatica\/blog\/452438\/\">Loo ajaloo vastasseisust tsenseerimisele: kuidas t\u00f6\u00f6tavad MIT ja Stanfordi teadlaste loodud flash proxy meetod<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/infatica\/blog\/451832\/\">Kuidas m\u00f5ista, kui proxy valetab: v\u00f5rgu proxyde f\u00fc\u00fcsiliste asukohtade verifitseerimine aktiivse geolokatsiooni algoritmi abil<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/infatica\/blog\/452334\/\">Kuidas internetis varjuda: v\u00f5rreldes serverip\u00f5hiseid ja resident-proxy<\/a><\/noindex><\/li>\n<\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/infatica\/blog\/457442\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0430\u0432\u0438\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0430 \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0442\u0440\u0430\u043d \u0442\u0430\u043a \u0438\u043b\u0438 \u0438\u043d\u0430\u0447\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u044e\u0442 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\u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c\u044e. \u0411\u043e\u043b\u0435\u0435 \u0441\u043b\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u043f\u0440\u0435\u043e\u0434\u043e\u043b\u0435\u043d\u0438\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a \u043e\u0431\u043b\u0430\u0434\u0430\u044e\u0442 \u043c\u0438\u043d\u0443\u0441\u0430\u043c\u0438 \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u0443\u0434\u043e\u0431\u0441\u0442\u0432\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f, \u043d\u0438\u0437\u043a\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e \u0438\u043b\u0438 \u043d\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u044c \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":26747,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-35704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/proekt-salmon-kak-effektivno-protivostoyat-internet-tsenzure-s-pomoshhyu-proksi-s-urovnyami-doveriya-polzovatelyam\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta 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