{"id":123013,"date":"2025-03-26T16:22:56","date_gmt":"2025-03-26T14:22:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-cloudflare-opublikovala-opkssh-dlya-autentifikaczii-v-ssh-cherez-openid-connect"},"modified":"2025-03-26T16:22:56","modified_gmt":"2025-03-26T14:22:58","slug":"kompaniya-cloudflare-opublikovala-opkssh-dlya-autentifikaczii-v-ssh-cherez-openid-connect","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/kompaniya-cloudflare-opublikovala-opkssh-dlya-autentifikaczii-v-ssh-cherez-openid-connect","title":{"rendered":"A Cloudflare megjelentette az opkssh-t, amely lehet\u0151v\u00e9 teszi az SSH-ba val\u00f3 bejelentkez\u00e9st OpenID Connect-en kereszt\u00fcl.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A Cloudflare bemutatta az opkssh (OpenPubkey SSH) eszk\u00f6zk\u00e9szletet, amely lehet\u0151v\u00e9 teszi a k\u00f6zpontos\u00edtott hiteles\u00edt\u00e9si eszk\u00f6z\u00f6k integr\u00e1l\u00e1s\u00e1t az OpenSSH-ba, lehet\u0151v\u00e9 t\u00e9ve a bejelentkez\u00e9st OpenID Connect szolg\u00e1ltat\u00f3kkal. Az opkssh seg\u00edts\u00e9g\u00e9vel elker\u00fclhet\u0151 a SSH-kulcsok manu\u00e1lis kezel\u00e9se \u00e9s be\u00e1ll\u00edt\u00e1sa, valamint lehet\u0151v\u00e9 teszi a csatlakoz\u00e1st a szerverhez b\u00e1rmely hosztr\u00f3l, an\u00e9lk\u00fcl hogy z\u00e1rt kulcsokat kellene l\u00e9trehozni minden kliens sz\u00e1m\u00edt\u00f3g\u00e9pen, \u00e9s manu\u00e1lisan m\u00e1solni a ny\u00edlt kulcsokat a szerverre. A csatlakoz\u00e1shoz elegend\u0151, ha a szerveren \u00f6sszekapcsoljuk a fi\u00f3kot az OpenID szolg\u00e1ltat\u00f3val. Az eszk\u00f6zk\u00e9szlet k\u00f3dja Go nyelven \u00edr\u00f3dott, \u00e9s Apache 2.0 licenc alatt terjesztik.    <\/p>\n<p>Az opkssh kompatibilis a Google, Microsoft\/Azure \u00e9s Gitlab OpenID szolg\u00e1ltat\u00f3kkal, ami lehet\u0151v\u00e9 teszi a bejelentkez\u00e9st a megl\u00e9v\u0151 gmail.com, microsoft.com \u00e9s gitlab.com fi\u00f3kokkal. Az opkssh haszn\u00e1latakor a korl\u00e1tlan idej\u0171 SSH kulcsok helyett ideiglenes kulcsok gener\u00e1l\u00f3dnak, amelyek n\u00e9h\u00e1ny \u00f3r\u00e1ig \u00e9rv\u00e9nyesek \u00e9s az OpenID szolg\u00e1ltat\u00f3t\u00f3l kapott meger\u0151s\u00edt\u00e9s alapj\u00e1n j\u00f6nnek l\u00e9tre. Az ilyen kulcsok kisziv\u00e1rg\u00e1sa a lej\u00e1rati id\u0151 ut\u00e1n nem jelent biztons\u00e1gi kock\u00e1zatot. Alap\u00e9rtelmez\u00e9s szerint a kulcs \u00e9rv\u00e9nyess\u00e9gi ideje 24 \u00f3ra, ezt k\u00f6vet\u0151en \u00fajra az OpenID seg\u00edts\u00e9g\u00e9vel sz\u00fcks\u00e9ges azonos\u00edtani mag\u00e1t.              <\/p>\n<p>Az OpenSSH-val val\u00f3 integr\u00e1ci\u00f3 az SSH protokoll kiterjeszt\u00e9s\u00e9nek lehet\u0151s\u00e9g\u00e9n alapul, amely lehet\u0151v\u00e9 teszi tetsz\u0151leges adatok csatol\u00e1s\u00e1t az SSH tan\u00fas\u00edtv\u00e1nyokhoz. Az OpenID-n kereszt\u00fcli hiteles\u00edt\u00e9s ut\u00e1n az \u00fcgyf\u00e9l l\u00e9trehoz egy ny\u00edlt kulcsot, amely tartalmaz egy PK-token-t, amely meger\u0151s\u00edti, hogy a kulcs a megadott felhaszn\u00e1l\u00f3hoz tartozik. A token integr\u00e1lva van az SSH protokollba az SSH tan\u00fas\u00edtv\u00e1ny kieg\u00e9sz\u00edt\u0151 adatok mez\u0151j\u00e9n kereszt\u00fcl. A PK-tokenek l\u00e9trehoz\u00e1s\u00e1t \u00e9s ellen\u0151rz\u00e9s\u00e9t a szerver oldal\u00e1n az OpenPubKey kriptogr\u00e1fiai protokoll haszn\u00e1lat\u00e1val v\u00e9gzik.     <\/p>\n<p>Az OpenPubKey lehet\u0151v\u00e9 teszi egy nyilv\u00e1nos kulcs gener\u00e1l\u00e1s\u00e1t \u00e9s annak \u00f6sszekapcsol\u00e1s\u00e1t az OpenID-szolg\u00e1ltat\u00f3 \u00e1ltal kiadott tokennel. A digit\u00e1lis al\u00e1\u00edr\u00e1s \u00e1ltal a szolg\u00e1ltat\u00f3 meger\u0151s\u00edti, hogy ezt a kulcsot a megnevezett hiteles\u00edtett felhaszn\u00e1l\u00f3 hozta l\u00e9tre. P\u00e9ld\u00e1ul a Google OpenID-szolg\u00e1ltat\u00f3ja meger\u0151s\u00edtheti, hogy a felhaszn\u00e1l\u00f3 hiteles\u00edtve van, mint test@gmail.com. Az \u00e9szaki oldalon ellen\u0151rzi a rendszer, hogy a csatolt token al\u00e1\u00edr\u00e1s\u00e1t az OpenID-szolg\u00e1ltat\u00f3 v\u00e9gezte-e, \u00e9s hogy a digit\u00e1lis al\u00e1\u00edr\u00e1s megfelel-e a megnevezett nyilv\u00e1nos kulcsnak, azaz a szerver meg tudja gy\u0151z\u0151dni arr\u00f3l, hogy val\u00f3ban a test@gmail.com felhaszn\u00e1l\u00f3 hozta l\u00e9tre a nyilv\u00e1nos kulcsot az SSH-klienshez val\u00f3 csatlakoz\u00e1shoz.     <center><img decoding=\"async\" alt=\"A Cloudflare megjelentette az opkssh-t, amely lehet\u0151v\u00e9 teszi az SSH-ba val\u00f3 bejelentkez\u00e9st OpenID Connect-en kereszt\u00fcl.\" src=\"\/wp-content\/uploads\/2025\/03\/5c0ff47d8749979a9a114805db3e2280.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Az OpenSSH integr\u00e1ci\u00f3ja az opkssh program megad\u00e1s\u00e1val t\u00f6rt\u00e9nik a \"sshd_config\" konfigur\u00e1ci\u00f3s f\u00e1jlban az \"AuthorizedKeysCommand\" direkt\u00edva seg\u00edts\u00e9g\u00e9vel (p\u00e9ld\u00e1ul: \"AuthorizedKeysCommand \/usr\/local\/bin\/opkssh verify %u %k %t\"). Az OpenID-hez val\u00f3 fi\u00f3k t\u00e1rs\u00edt\u00e1sa a SSH szerver oldal\u00e1n t\u00f6rt\u00e9nik. A SSH kliens oldal\u00e1n nem sz\u00fcks\u00e9ges m\u00f3dos\u00edt\u00e1sokat v\u00e9gezni, de a bel\u00e9p\u00e9s el\u0151tt futtatni kell az \"opkssh login\" parancsot, \u00e9s a megjelen\u0151 b\u00f6ng\u00e9sz\u0151ablakban ki kell v\u00e1lasztani az OpenID szolg\u00e1ltat\u00f3t \u00e9s el kell v\u00e9gezni az azonos\u00edt\u00e1st.     <\/p>\n<p>Az opkssh eszk\u00f6z SSH-kulcsokat gener\u00e1l, \u00e9s egy PK-token-t kap, amely meger\u0151s\u00edti, hogy a felhaszn\u00e1l\u00f3 hiteles\u00edtve van, \u00e9s lehet\u0151v\u00e9 teszi annak ellen\u0151rz\u00e9s\u00e9t, hogy a l\u00e9trehozott kulcsok a megnevezett felhaszn\u00e1l\u00f3hoz tartoznak. Az SSH nyilv\u00e1nos kulcs, amelyhez egy PK-token van kapcsolva egy kieg\u00e9sz\u00edt\u0151 adatmez\u0151n kereszt\u00fcl, a ~\/.ssh\/id_ecdsas f\u00e1jlba ker\u00fcl, \u00e9s elkezd \u00e1tkonfigur\u00e1lva lenni csatlakoz\u00e1skor az <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-shicago\/\"   title=\"szerverhez\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2948\">szerverhez<\/a> ssh eszk\u00f6zh\u00f6z.     <\/p>\n<p>A kapcsol\u00f3d\u00e1s a szerverhez a megszokott SSH s\u00e9ma szerint t\u00f6rt\u00e9nik: \"ssh login@server\", mik\u00f6zben <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-newyork\/\"   title=\"szerveren\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2804\">szerveren<\/a> a login-nak el\u0151zetesen az OpenID fi\u00f3kkal kell azonos\u00edtania a felhaszn\u00e1l\u00f3t. \u00cdgy a m\u0171k\u00f6d\u00e9s l\u00e9nyege, hogy a ssh kliens elk\u00fcldi a nyilv\u00e1nos kulcsot a ssh szervernek, m\u00edg a szerver futtatja az \"opkssh verify\" parancsot a kulcs ellen\u0151rz\u00e9s\u00e9re.     <\/p>\n<p>A fi\u00f3k OpenID-hez val\u00f3 t\u00e1rs\u00edt\u00e1s\u00e1hoz a szerver adminisztr\u00e1tora az \"opkssh add\" parancsot hajtja v\u00e9gre. P\u00e9ld\u00e1ul, ha a \"root\" felhaszn\u00e1l\u00f3val OpenID azonos\u00edt\u00e1ssal k\u00edv\u00e1n bel\u00e9pni a \"test@gmail.com\" Gmail fi\u00f3kon kereszt\u00fcl, akkor v\u00e9gre kell hajtani a \"sudo opkssh add root test@gmail.com google\" parancsot, ezut\u00e1n a kliens a megadott fi\u00f3k param\u00e9tereivel tud kapcsol\u00f3dni az \"ssh root@host_server\" paranccsal.      <\/p>\n<p>A fi\u00f3k t\u00e1rs\u00edt\u00e1sa manu\u00e1lisan is elv\u00e9gezhet\u0151 a config f\u00e1jl (\/etc\/opk\/auth_id vagy ~\/.opk\/auth_id) haszn\u00e1lat\u00e1val, ahol a fenti p\u00e9lda alapj\u00e1n a k\u00f6vetkez\u0151 sor ker\u00fcl bejegyz\u00e9sre: \"root test@gmail.com https:\/\/accounts.google.com\". Tov\u00e1bb\u00e1 a \/etc\/opk\/providers f\u00e1jl haszn\u00e1lat\u00e1val meghat\u00e1rozhat\u00f3k az enged\u00e9lyezett OpenID szolg\u00e1ltat\u00f3k, azok param\u00e9terei \u00e9s az enged\u00e9lyezett kliens azonos\u00edt\u00f3k list\u00e1ja.    <center><img decoding=\"async\" alt=\"A Cloudflare megjelentette az opkssh-t, amely lehet\u0151v\u00e9 teszi az SSH-ba val\u00f3 bejelentkez\u00e9st OpenID Connect-en kereszt\u00fcl.\" src=\"\/wp-content\/uploads\/2025\/03\/b4784e644e58c199209d5f876d9a14be.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62952\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cloudflare \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 opkssh (OpenPubkey SSH), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u0438\u043d\u0442\u0435\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432 OpenSSH \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0441 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u0432\u0445\u043e\u0434\u0430 \u0447\u0435\u0440\u0435\u0437 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u043e\u0432 OpenID Connect. \u041f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 opkssh \u043c\u043e\u0436\u043d\u043e \u0438\u0437\u0431\u0430\u0432\u0438\u0442\u044c\u0441\u044f \u043e\u0442 \u0440\u0443\u0447\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u0438 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0435 SSH-\u043a\u043b\u044e\u0447\u0435\u0439, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u043a \u0441\u0435\u0440\u0432\u0435\u0440\u0443 \u0441 \u043b\u044e\u0431\u044b\u0445 \u0445\u043e\u0441\u0442\u043e\u0432, \u0431\u0435\u0437 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 \u043d\u0430 \u043a\u0430\u0436\u0434\u043e\u043c \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u043e\u043c \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0435 \u0438 \u0431\u0435\u0437 \u0440\u0443\u0447\u043d\u043e\u0433\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":123014,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-123013","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cloudflare \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 opkssh (OpenPubkey SSH), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u0438\u043d\u0442\u0435\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432 OpenSSH \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 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