{"id":34921,"date":"2019-10-31T22:01:17","date_gmt":"2019-10-31T19:01:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/est-mnenie-tehnologiya-dane-dlya-brauzerov-provalilas\/"},"modified":"2019-10-31T22:01:17","modified_gmt":"2019-10-31T19:01:17","slug":"est-mnenie-tehnologiya-dane-dlya-brauzerov-provalilas","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/est-mnenie-tehnologiya-dane-dlya-brauzerov-provalilas","title":{"rendered":"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Arr\u00f3l besz\u00e9l\u00fcnk, hogy mit jelent a DANE technol\u00f3gia a domain nevek DNS alap\u00fa hiteles\u00edt\u00e9s\u00e9ben, \u00e9s mi\u00e9rt nem terjedt el sz\u00e9les k\u00f6rben a b\u00f6ng\u00e9sz\u0151kben.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/454322\/\"><img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/61c8c36b748ad8fd0711336e517f9cae.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>\/ Unsplash \/ <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/uw_NWjC1mBE\">Paulius Dragunas<\/a><\/noindex><\/i><\/p>\n<h2>Mi az a DANE<\/h2>\n<p>\nA tan\u00fas\u00edtv\u00e1nykiad\u00f3k (CA) olyan szervezetek, amelyek <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/sozdat-ili-kupit-ssl?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=dane&amp;utm_content=site\">foglalkoznak<\/a><\/noindex> a kriptogr\u00e1fiai <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/services\/ssl?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=dane&amp;utm_content=site\">SSL tan\u00fas\u00edtv\u00e1nyok<\/a><\/noindex>hiteles\u00edt\u00e9ssel. Elektronikus al\u00e1\u00edr\u00e1sukkal igazolj\u00e1k a hiteless\u00e9g\u00fcket. Azonban n\u00e9ha el\u0151fordulnak olyan helyzetek, amikor a tan\u00fas\u00edtv\u00e1nyok kiad\u00e1sa szab\u00e1lytalans\u00e1gokkal t\u00f6rt\u00e9nik. P\u00e9ld\u00e1ul tavaly a Google elind\u00edtotta a \u201emegb\u00edzhat\u00f3s\u00e1g megvon\u00e1s\u00e1nak elj\u00e1r\u00e1s\u00e1t\u201d a Symantec tan\u00fas\u00edtv\u00e1nyokkal kapcsolatban a kompromitt\u00e1l\u00f3d\u00e1suk miatt (err\u0151l r\u00e9szletesen \u00edrtunk a blogunkban \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/349382\/\">egyszer<\/a><\/noindex> \u00e9s <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/350768\/\">k\u00e9tszer<\/a><\/noindex>).<\/p>\n<p>Az ilyen helyzetek elker\u00fcl\u00e9se \u00e9rdek\u00e9ben n\u00e9h\u00e1ny \u00e9vvel ezel\u0151tt az IETF <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ietfjournal.org\/dane-taking-tls-authentication-to-the-next-level-using-dnssec\/\">elkezdte fejleszteni<\/a><\/noindex> a DANE technol\u00f3gi\u00e1t (de ez nem terjedt el sz\u00e9les k\u00f6rben a b\u00f6ng\u00e9sz\u0151kben \u2014 err\u0151l k\u00e9s\u0151bb besz\u00e9l\u00fcnk).<\/p>\n<p>A DANE (DNS-alap\u00fa Hiteles\u00edt\u00e9se Nevezett Entit\u00e1sok) egy specifik\u00e1ci\u00f3s k\u00e9szlet, amely lehet\u0151v\u00e9 teszi a DNSSEC (Domain Name System Security Extensions) haszn\u00e1lat\u00e1t az SSL-tan\u00fas\u00edtv\u00e1nyok \u00e9rv\u00e9nyess\u00e9g\u00e9nek ellen\u0151rz\u00e9s\u00e9re. A DNSSEC a domain nevek rendszer\u00e9nek kiterjeszt\u00e9se, amely minimaliz\u00e1lja a c\u00edmhamis\u00edt\u00e1ssal kapcsolatos t\u00e1mad\u00e1sokat. E k\u00e9t technol\u00f3gia felhaszn\u00e1l\u00e1s\u00e1val a webmesterek vagy az \u00fcgyfelek hozz\u00e1f\u00e9rhetnek a DNS z\u00f3na \u00fczemeltet\u0151ihez, \u00e9s meger\u0151s\u00edthetik a haszn\u00e1lt tan\u00fas\u00edtv\u00e1ny \u00e9rv\u00e9nyess\u00e9g\u00e9t.<\/p>\n<p>L\u00e9nyeg\u00e9ben a DANE egy \u00f6nal\u00e1\u00edrt tan\u00fas\u00edtv\u00e1nyk\u00e9nt m\u0171k\u00f6dik (megb\u00edzhat\u00f3s\u00e1g\u00e1t a DNSSEC garant\u00e1lja), \u00e9s kieg\u00e9sz\u00edti a CA funkci\u00f3it.<\/p>\n<h2>Hogyan m\u0171k\u00f6dik ez<\/h2>\n<p>\nA DANE specifik\u00e1ci\u00f3ja le van \u00edrva a <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc6698\">RFC6698<\/a><\/noindex>dokumentumban. A dokumentum szerint a <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A2%D0%B8%D0%BF%D1%8B_%D1%80%D0%B5%D1%81%D1%83%D1%80%D1%81%D0%BD%D1%8B%D1%85_%D0%B7%D0%B0%D0%BF%D0%B8%D1%81%D0%B5%D0%B9_DNS\">DNS er\u0151forr\u00e1srekordokba<\/a><\/noindex> \u00faj t\u00edpust \u2014 TLSA \u2014 adtak hozz\u00e1. Ez tartalmazza a tov\u00e1bb\u00edtott tan\u00fas\u00edtv\u00e1nyra vonatkoz\u00f3 inform\u00e1ci\u00f3t, a m\u00e9ret\u00e9t \u00e9s a tov\u00e1bb\u00edtott adatok t\u00edpus\u00e1t, valamint magukat az adatokat. A webmester l\u00e9trehoz egy digit\u00e1lis ujjlenyomatot a tan\u00fas\u00edtv\u00e1nyr\u00f3l, al\u00e1\u00edrja a DNSSEC haszn\u00e1lat\u00e1val, \u00e9s elhelyezi a TLSA-ban.<\/p>\n<blockquote><p>Az \u00fcgyf\u00e9l csatlakozik az internetes webhelyhez, \u00e9s \u00f6sszehasonl\u00edtja annak tan\u00fas\u00edtv\u00e1ny\u00e1t a DNS-\u00fczemeltet\u0151t\u0151l kapott \u201em\u00e1solattal\u201d. Ha ezek egyeznek, akkor az er\u0151forr\u00e1st megb\u00edzhat\u00f3nak tekintik.<\/p><\/blockquote>\n<p>\nA DANE wikioldal\u00e1n a k\u00f6vetkez\u0151 p\u00e9lda tal\u00e1lhat\u00f3 a p\u00e9ld\u00e1ny.org szerver DNS-lek\u00e9rdez\u00e9s\u00e9re a 443-as TCP-porton:<\/p>\n<pre><code class=\"xml\">IN TLSA _443._tcp.example.org<\/code><\/pre>\n<p>\nA v\u00e1lasz \u00edgy n\u00e9z ki:<\/p>\n<pre><code class=\"xml\"> _443._tcp.example.com. IN TLSA (\n   3 0 0 30820307308201efa003020102020... )\n<\/code><\/pre>\n<p>\nA DANE t\u00f6bb kiterjeszt\u00e9ssel rendelkezik, amelyek m\u00e1s DNS rekordokkal is egy\u00fcttm\u0171k\u00f6dnek a TLSA mellett. Az els\u0151 a DNS SSHFP rekord, amely a kulcsok ellen\u0151rz\u00e9s\u00e9re szolg\u00e1l SSH kapcsolat eset\u00e9n. Ezt a k\u00f6vetkez\u0151 dokumentumban tal\u00e1lja: <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc4255\">RFC4255<\/a><\/noindex>,\u00a0<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc6594\">RFC6594<\/a><\/noindex>\u00a0\u00e9s\u00a0<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc7479\">RFC7479<\/a><\/noindex>. A m\u00e1sodik az OPENPGPKEY rekord, amely lehet\u0151v\u00e9 teszi a kulcsok megoszt\u00e1s\u00e1t PGP seg\u00edts\u00e9g\u00e9vel (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc7929\">RFC7929<\/a><\/noindex>). V\u00e9g\u00fcl a harmadik a SMIMEA rekord (a szabv\u00e1ny RFC form\u00e1tumban nem ker\u00fclt r\u00f6gz\u00edt\u00e9sre, csak egy v\u00e1zlat l\u00e9tezik <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/draft-ietf-dane-smime-16\">), amely titkos\u00edtott kulcscsere megval\u00f3s\u00edt\u00e1s\u00e1ra szolg\u00e1l S\/MIME eset\u00e9n.<\/a><\/noindex>Mi a probl\u00e9ma a DANE-nel<\/p>\n<h2>M\u00e1jus k\u00f6zep\u00e9n zajlott a DNS-OARC konferencia (ez egy nonprofit szervezet, amely a domain nevek biztons\u00e1g\u00e1val, stabilit\u00e1s\u00e1val \u00e9s fejleszt\u00e9s\u00e9vel foglalkozik). Az egyik panelen a szak\u00e9rt\u0151k<\/h2>\n<p>\narra a k\u00f6vetkeztet\u00e9sre jutottak <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.apnic.net\/2019\/05\/27\/dns-oarc-30-bad-news-for-dane\/\">, hogy a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151kben megbukott (legal\u00e1bbis a jelenlegi megval\u00f3s\u00edt\u00e1sban). A konferenci\u00e1n r\u00e9szt vev\u0151 Geoff Huston, az<\/a><\/noindex>APNIC <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Asia-Pacific_Network_Information_Centre\">, az \u00f6t region\u00e1lis internet regisztr\u00e1tor egyike,<\/a><\/noindex>\u00edgy nyilatkozott <noindex><a rel=\"nofollow\" href=\"https:\/\/afaae.com\/germany\/dnssec-dane-chain-for-browsers-is-practically-dead\/\">a DANE-r\u0151l, mint \"holt technol\u00f3gia\".<\/a><\/noindex> A n\u00e9pszer\u0171 b\u00f6ng\u00e9sz\u0151k nem t\u00e1mogatj\u00e1k a tan\u00fas\u00edtv\u00e1nyok DANE \u00e1ltali hiteles\u00edt\u00e9s\u00e9t. A piacon<\/p>\n<blockquote><p>k\u00fcl\u00f6nf\u00e9le pluginok tal\u00e1lhat\u00f3k <noindex><a rel=\"nofollow\" href=\"https:\/\/superuser.com\/questions\/1273058\/browser-plugin-enabling-dane-protocol-with-firefox-chrome-or-other-browser\">, amelyek kihaszn\u00e1lj\u00e1k a TLSA rekordok funkcionalit\u00e1s\u00e1t, azonban ezek t\u00e1mogat\u00e1s\u00e1t<\/a><\/noindex>lassan megsz\u00fcntetik. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dnssec-validator.cz\/2018-10-16-end-of-support.html\">A DANE elterjed\u00e9s\u00e9nek probl\u00e9m\u00e1it a DNSSEC \u00e9rv\u00e9nyes\u00edt\u00e9si folyamat\u00e1nak hossz\u00fas\u00e1g\u00e1val hozz\u00e1k \u00f6sszef\u00fcgg\u00e9sbe. A rendszer kriptogr\u00e1fiai sz\u00e1m\u00edt\u00e1sokat v\u00e9gez a SSL tan\u00fas\u00edtv\u00e1ny hiteles\u00edt\u00e9s\u00e9nek meger\u0151s\u00edt\u00e9s\u00e9re, \u00e9s \u00e1t kell haladnia az \u00f6sszes DNS szerver l\u00e1ncon (a gy\u00f6k\u00e9rz\u00f3n\u00e1t\u00f3l a host domain-ig) az els\u0151 kapcsolatfelv\u00e9tel sor\u00e1n.<\/a><\/noindex>.<\/p><\/blockquote>\n<p>\nKaley Dykstra<\/p>\n<p><img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/2d57dce196f8f6dac9c79f89f7d7bc15.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>\/ Unsplash \/ <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/gtVrejEGdmM\">Ezt a h\u00e1tr\u00e1nyt a Mozilla pr\u00f3b\u00e1lta orvosolni a DNSSEC Chain Extension<\/a><\/noindex><\/i><\/p>\n<p>a TLS-hez. Ennek cs\u00f6kkentenie kellett volna a DNS rekordok sz\u00e1m\u00e1t, amelyet a kliensnek \u00e1t kellett n\u00e9znie a hiteles\u00edt\u00e9s sor\u00e1n. Azonban a fejleszt\u0151i csoporton bel\u00fcl n\u00e9zetelt\u00e9r\u00e9sek mer\u00fcltek fel, amelyeket nem siker\u00fclt megoldani. V\u00e9g\u00fcl a projektet le\u00e1ll\u00edtott\u00e1k, b\u00e1r 2018 m\u00e1rcius\u00e1ban az IETF j\u00f3v\u00e1hagyta. <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/draft-ietf-tls-dnssec-chain-extension-07\">A DANE alacsony n\u00e9pszer\u0171s\u00e9g\u00e9nek egy m\u00e1sik oka a DNSSEC gyenge elterjedts\u00e9ge a vil\u00e1gban \u2014<\/a><\/noindex> csak a forr\u00e1sok 19%-a m\u0171k\u00f6dik vele<\/p>\n<p>. A szak\u00e9rt\u0151k szerint ez nem elegend\u0151 a DANE akt\u00edv el\u0151mozd\u00edt\u00e1s\u00e1hoz. <noindex><a rel=\"nofollow\" href=\"https:\/\/stats.labs.apnic.net\/dnssec\">csak 19% -\u00e1t haszn\u00e1lja<\/a><\/noindex>. Szak\u00e9rt\u0151k \u00fagy v\u00e9lik, hogy ez nem elegend\u0151 a DANE akt\u00edv n\u00e9pszer\u0171s\u00edt\u00e9s\u00e9hez.<\/p>\n<p>Val\u00f3sz\u00edn\u0171leg az ipar m\u00e1s ir\u00e1nyba fog fejl\u0151dni. Ahelyett, hogy a DNS-t haszn\u00e1ln\u00e1k az SSL\/TLS tan\u00fas\u00edtv\u00e1nyok ellen\u0151rz\u00e9s\u00e9re, a piaci szerepl\u0151k \u00e9ppen ellenkez\u0151leg, a DNS-over-TLS (DoT) \u00e9s a DNS-over-HTTPS (DoH) protokollokat fogj\u00e1k n\u00e9pszer\u0171s\u00edteni. Az utols\u00f3t egy kor\u00e1bbi anyagunkban eml\u00edtett\u00fck <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/439426\/\">az el\u0151z\u0151 anyagainkban<\/a><\/noindex> a Habr\u00e1n. Ezek titkos\u00edtj\u00e1k \u00e9s ellen\u0151rzik a felhaszn\u00e1l\u00f3k DNS-kiszolg\u00e1l\u00f3hoz int\u00e9zett k\u00e9r\u00e9seit, megakad\u00e1lyozva, hogy a rosszindulat\u00fa szerepl\u0151k manipul\u00e1lhass\u00e1k az adatokat. Az \u00e9v elej\u00e9n a DoT m\u00e1r <noindex><a rel=\"nofollow\" href=\"https:\/\/security.googleblog.com\/2019\/01\/google-public-dns-now-supports-dns-over.html\">bevezet\u00e9sre ker\u00fclt<\/a><\/noindex> a Google-n\u00e1l k\u00f6zpublic DNS szolg\u00e1ltat\u00e1sukhoz. Ami a DANE-t illeti - hogy a technol\u00f3gia \"visszaj\u00f6jj\u00f6n a nyeregbe\" \u00e9s val\u00f3ban elterjedtt\u00e9 v\u00e1ljon, azt a j\u00f6v\u0151 d\u00f6nti el.<\/p>\n<blockquote><p><b>Mit aj\u00e1nlunk m\u00e9g tov\u00e1bbi olvasm\u00e1nyk\u00e9nt:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/6f7a2dcecf5bb98f0e6808550d343521.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/453326\/\">Hogyan automatiz\u00e1ljuk az IT-infrastrukt\u00fara kezel\u00e9s\u00e9t - h\u00e1rom trendr\u0151l besz\u00e9lget\u00fcnk<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/53815bb3b535a4f041c03df97b59c8c2.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/1cloud\/blog\/452958\/\">A JMAP - ny\u00edlt protokoll felv\u00e1ltja az IMAP-ot az elektronikus levelez\u00e9s sor\u00e1n<\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/62b2366e32f3db04c0b217e625e88888.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/ekonomiya-na-api?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=jmap&amp;utm_content=blog\">Hogyan takar\u00edthatunk meg az alkalmaz\u00e1sprogramoz\u00e1si interf\u00e9szen kereszt\u00fcl<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/0cda9d4071b16d44978d1d8ac38a8c80.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/devops-v-razrabotke-oblaka-1cloud?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=jmap&amp;utm_content=blog\">DevOps felh\u0151szolg\u00e1ltat\u00e1son, a 1cloud.ru p\u00e9ld\u00e1j\u00e1n<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/6455b1a4c3a02fd6a1295dcd1855f6b3.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/1cloud.ru\/blog\/our-system-architecture-evolution?utm_source=habrahabr&amp;utm_medium=cpm&amp;utm_campaign=jmap&amp;utm_content=blog\">Az 1cloud felh\u0151architekt\u00far\u00e1j\u00e1nak evol\u00faci\u00f3ja<\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/32f570bb5171bd23cda18ffc1c058524.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.facebook.com\/1cloudru\/posts\/2334655376856969\">Hogyan m\u0171k\u00f6dik az 1cloud \u00fcgyf\u00e9lszolg\u00e1lata<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Van v\u00e9lem\u00e9ny: a DANE technol\u00f3gia a b\u00f6ng\u00e9sz\u0151k sz\u00e1m\u00e1ra megbukott\" src=\"\/wp-content\/uploads\/2019\/06\/aa6a3fa2d5fd4c1f0815165089ea2980.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.facebook.com\/1cloudru\/posts\/2329624197360087\">M\u00edtoszok a felh\u0151technol\u00f3giai megold\u00e1sokr\u00f3l<\/a><\/noindex><\/p><\/blockquote>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" 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