{"id":92230,"date":"2020-08-24T19:42:19","date_gmt":"2020-08-24T17:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pochti-polovina-trafika-na-kornevye-dns-servery-vyzvana-aktivnostyu-chromium"},"modified":"2020-08-24T19:42:19","modified_gmt":"2020-08-24T17:42:19","slug":"pochti-polovina-trafika-na-kornevye-dns-servery-vyzvana-aktivnostyu-chromium","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/pochti-polovina-trafika-na-kornevye-dns-servery-vyzvana-aktivnostyu-chromium","title":{"rendered":"Gati gjysma e trafikut n\u00eb server\u00ebt rr\u00ebnj\u00eb DNS shkaktohet nga aktiviteti i Chromium","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Regjistruesi APNIC, q\u00eb \u00ebsht\u00eb p\u00ebrgjegj\u00ebs p\u00ebr shp\u00ebrndarjen e adresave IP n\u00eb rajonin e Azis\u00eb dhe Paq\u00ebsorit, publikoi<\/a><\/noindex> rezultatet e analiz\u00ebs s\u00eb shp\u00ebrndarjes s\u00eb trafikut n\u00eb nj\u00eb nga server\u00ebt kryesor\u00eb DNS a.root-servers.net. 45.80% e k\u00ebrkesave ndaj serverit kryesor rezultuan t\u00eb ishin t\u00eb lidhura me kontrollet q\u00eb kryhen nga shfletuesit e bazuar n\u00eb motorin Chromium. Si rezultat, pothuajse gjysma e burimeve t\u00eb server\u00ebve kryesor\u00eb DNS shkon p\u00ebr kryerjen e kontrolleve diagnostike t\u00eb Chromium, dhe jo p\u00ebr p\u00ebrpunimin e k\u00ebrkesave nga server\u00ebt DNS p\u00ebr p\u00ebrkufizimin e zonave kryesore. Duke pasur parasysh se Chrome z\u00eb 70% t\u00eb tregut t\u00eb shfletuesve web, nj\u00eb aktivitet i till\u00eb diagnostikues \u00e7on n\u00eb d\u00ebrgimin e rreth 60 miliard\u00eb k\u00ebrkesave n\u00eb server\u00ebt kryesor\u00eb \u00e7do dit\u00eb.<\/p>\n

Kontrollat diagnostike p\u00ebrdoren n\u00eb Chromium p\u00ebr t\u00eb p\u00ebrcaktuar p\u00ebrdorimin nga ofruesit e sh\u00ebrbimeve, q\u00eb d\u00ebrgojn\u00eb k\u00ebrkesat p\u00ebr emra q\u00eb nuk ekzistojn\u00eb n\u00eb trajtuesit e tyre. Sisteme t\u00eb tilla implementohen nga disa ofrues p\u00ebr t\u00eb drejtuar trafikun drejt vetes p\u00ebr emrat e domeneve t\u00eb shkruara gabim - zakonisht p\u00ebr domene q\u00eb nuk ekzistojn\u00eb tregohen faqe me paralajm\u00ebrime p\u00ebr gabime, nj\u00eb list\u00eb t\u00eb emrave t\u00eb mundsh\u00ebm t\u00eb sakt\u00eb dhe reklama. N\u00eb k\u00ebt\u00eb m\u00ebnyr\u00eb, nj\u00eb aktivitet i till\u00eb shkat\u00ebrron plot\u00ebsisht logjik\u00ebn e p\u00ebrcaktimit t\u00eb hosteve intranet n\u00eb shfletues.<\/p>\n

Kur procesi i k\u00ebrkes\u00ebs s\u00eb k\u00ebrkimit vendoset n\u00eb shiritin e adres\u00ebs, n\u00ebse \u00ebsht\u00eb shkruar vet\u00ebm nj\u00eb fjal\u00eb pa pika, shfletuesi n\u00eb fillim p\u00ebrpiqet<\/a><\/noindex> p\u00ebrcakton k\u00ebt\u00eb fjal\u00eb n\u00eb DNS, duke supozuar se p\u00ebrdoruesi mund t\u00eb p\u00ebrpiqet t\u00eb aksesoj\u00eb nj\u00eb faqe intranet n\u00eb rrjetin e brendsh\u00ebm, dhe jo t\u00eb d\u00ebrgoj\u00eb k\u00ebrkes\u00ebn n\u00eb motorin e k\u00ebrkimeve. N\u00eb rast se ofruesi drejton k\u00ebrkesat p\u00ebr emra domain q\u00eb nuk ekzistojn\u00eb, p\u00ebrdoruesit hasin nj\u00eb problem - \u00e7do k\u00ebrkes\u00eb k\u00ebrkimi nga nj\u00eb fjal\u00eb, e shkruar n\u00eb shiritin e adres\u00ebs, fillon t\u00eb drejt\u00ebzohet n\u00eb faqet e ofruesit, dhe jo t\u00eb d\u00ebrgohet n\u00eb motorin e k\u00ebrkimeve.<\/p>\n

P\u00ebr t\u00eb zgjidhur problemin e lindur, zhvilluesit e Chromium shtuan n\u00eb shfletues kontrolla shtes\u00eb<\/a><\/noindex>, q\u00eb n\u00eb rast se p\u00ebrcaktohen drejtime, ndryshojn\u00eb logjik\u00ebn e p\u00ebrpunimit t\u00eb k\u00ebrkesave n\u00eb shiritin e adres\u00ebs.
\nMe \u00e7do shkarkim, ndryshim t\u00eb parametrave DNS ose nd\u00ebrrim t\u00eb adres\u00ebs IP, shfletuesi d\u00ebrgon tre k\u00ebrkesa DNS me emra t\u00eb rastit t\u00eb domain-eve t\u00eb nivelit t\u00eb par\u00eb, t\u00eb cilat ka shum\u00eb t\u00eb ngjar\u00eb t\u00eb mos ekzistojn\u00eb. Emrat p\u00ebrfshijn\u00eb nga 7 deri n\u00eb 15 shkronja latine (pa pika) dhe p\u00ebrdoren p\u00ebr t\u00eb identifikuar ridirektimin e domain-eve t\u00eb paeksistueshme nga ofruesi n\u00eb hostin e tij. N\u00ebse gjat\u00eb p\u00ebrpunimit t\u00eb tre k\u00ebrkesave HTTP me emra t\u00eb rastit, dy prej tyre rezultojn\u00eb n\u00eb ridirektimin n\u00eb t\u00eb nj\u00ebjt\u00ebn faqe, at\u00ebher\u00eb Chromium konsideron se p\u00ebrdoruesi \u00ebsht\u00eb ridirigjuar n\u00eb nj\u00eb faqe t\u00eb jashtme.<\/p>\n

Si tregues p\u00ebr t\u00eb identifikuar aktiviteten e Chromium nga rrjedha e p\u00ebrgjithshme e k\u00ebrkesave n\u00eb serverin rr\u00ebnjor DNS, u p\u00ebrdor\u00ebn madh\u00ebsi jo t\u00eb zakonshme t\u00eb emrave t\u00eb domain-eve t\u00eb nivelit t\u00eb par\u00eb (nga 7 n\u00eb 15 shkronja) dhe faktori i rip\u00ebrs\u00ebritjes s\u00eb k\u00ebrkesave (emrat \u00e7do her\u00eb u gjeneruan rast\u00ebsisht dhe nuk u p\u00ebrs\u00ebrit\u00ebn).
\nN\u00eb log, fillimisht u filtruan k\u00ebrkesat e domain-eve t\u00eb paeksistueshme (78.09%), pastaj u identifikuan k\u00ebrkesat q\u00eb u p\u00ebrs\u00ebrit\u00ebn jo m\u00eb shum\u00eb se tre her\u00eb (51.41%), dhe pastaj u filtruan domain-et q\u00eb p\u00ebrfshinin nga 7 deri n\u00eb 15 shkronja (45.80%). \u00cbsht\u00eb interesante se vet\u00ebm 21.91% e k\u00ebrkesave n\u00eb serverat rr\u00ebnjor rezultuan t\u00eb ishin t\u00eb lidhura me p\u00ebrcaktimin e domain-eve ekzistuese.<\/p>\n

\"Gati<\/a><\/noindex><\/center><\/p>\n

Gjat\u00eb studimit u shqyrtua gjithashtu var\u00ebsia e rritjes s\u00eb ngarkes\u00ebs n\u00eb server\u00ebt rr\u00ebnjor\u00eb a.root-servers.net dhe j.root-servers.net nga rritja e popullaritetit t\u00eb Chrome.<\/p>\n

\"Gati<\/a><\/noindex><\/center><\/p>\n

N\u00eb Firefox kontrolli i ridirektimit p\u00ebrmes DNS kufizohet<\/a><\/noindex> n\u00eb p\u00ebrcaktimin e ridirektimit n\u00eb faqet e autentikimit (captive portal) dhe realizuar<\/a><\/noindex> me p\u00ebrdorimin<\/a><\/noindex> e nj\u00eb subdomaini t\u00eb fiksuar «detectportal.firefox.com», pa d\u00ebrguar k\u00ebrkesa p\u00ebr emrat e domain-eve t\u00eb nivelit t\u00eb par\u00eb. Nj\u00eb sjellje e till\u00eb nuk krijon ngarkes\u00eb shtes\u00eb n\u00eb server\u00ebt rr\u00ebnjor\u00eb DNS, por potencialisht mund t\u00eb merohet<\/a><\/noindex> si nj\u00eb rrjedhje e t\u00eb dh\u00ebnave t\u00eb ndjeshme mbi adres\u00ebn IP t\u00eb p\u00ebrdoruesit (n\u00eb \u00e7do shkarkim k\u00ebrkohet faqja «detectportal.firefox.com\/success.txt»). P\u00ebr t\u00eb \u00e7aktivizuar kontrollin n\u00eb Firefox, ekziston nj\u00eb parameter «network.captive-portal-service.enabled», i cili mund t\u00eb ndryshohet n\u00eb faqen «about:config».<\/p>\n

<\/a><\/noindex><\/p>\n

Burimi: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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