{"id":103738,"date":"2022-04-08T15:36:50","date_gmt":"2022-04-08T13:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp"},"modified":"2022-04-08T15:36:50","modified_gmt":"2022-04-08T13:36:50","slug":"reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp","title":{"rendered":"OpenSSH 9.0-release med overs\u00e6ttelse af scp til SFTP-protokollen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>OpenSSH 9.0 er nu tilg\u00e6ngelig; det er en \u00e5ben implementering af klient og server til brug med SSH 2.0 og SFTP-protokoller. I den nye version er scp-v\u00e6rkt\u00f8jet som standard overf\u00f8rt til at bruge SFTP i stedet for den for\u00e6ldede SCP\/RCP-protokol.       <\/p>\n<p>I SFTP anvendes mere forudsigelige metoder til behandling af navne, og der anvendes ikke glob-m\u00f8nsterbehandling af filnavne gennem shell p\u00e5 den anden v\u00e6rts side, hvilket kan skabe sikkerhedsproblemer. Specifikt vil SCP og RCP-serveren beslutte, hvilke filer og mapper der skal sendes til klienten, mens klienten kun kontrollerer korrektheden af de returnerede objekt navne, hvilket, uden de rette kontroller fra klientens side, kan <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/dts-shicago\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2910\">server<\/a> resultere i overf\u00f8rsel af andre filnavne, der adskiller sig fra de anmodede.     <\/p>\n<p>SFTP-protokollen har ikke de n\u00e6vnte problemer, men underst\u00f8tter ikke udvidelse af specielle stier som \u00ab~\/\u00bb. For at l\u00f8se denne forskel, fra OpenSSH 8.7, har implementeringen af SFTP-serveren underst\u00f8ttelse af protokoludvidelsen \u00abexpand-path@openssh.com\u00bb for at afsl\u00f8re stierne ~\/ og ~user\/.     <\/p>\n<p>Ved brug af SFTP kan brugerne ogs\u00e5 st\u00f8de p\u00e5 inkompatibiliteter, der skyldes behovet for dobbelt udslip af specialtegn i sti-udvidelsesforesp\u00f8rgsler i SCP og RCP for at forhindre deres fortolkning p\u00e5 den fjerne side. I SFTP er s\u00e5dan udslip ikke n\u00f8dvendigt, og un\u00f8dvendige citationstegn kan f\u00f8re til overf\u00f8rselsfejl. Herudover har OpenSSH's udviklere afvist at tilf\u00f8je en udvidelse for at gentage scp's opf\u00f8rsel i dette tilf\u00e6lde, da dobbelt udslip betragtes som en ulempe, der ikke b\u00f8r gentages.    <\/p>\n<p>Andre \u00e6ndringer i den nye version:  <\/p>\n<ul>\n<li class=\"l\"> I ssh og sshd er den hybride n\u00f8gleudvekslingsalgorithmus \u00absntrup761x25519-sha512@openssh.com\u00bb (ECDH\/x25519 + NTRU Prime) som standard aktiveret. Denne er modstandsdygtig over for brute-force angreb fra kvantecomputere og kombineret med ECDH\/x25519 for at blokere potentielle problemer med NTRU Prime, som kan opst\u00e5 i fremtiden. I listen over KexAlgorithms, der bestemmer r\u00e6kkef\u00f8lgen for valg af n\u00f8gleudvekslingsmetoder, er den n\u00e6vnte algoritme nu sat p\u00e5 f\u00f8rstepladsen og har h\u00f8jere prioritet end ECDH- og DH-algoritmerne.\n<p>Kvantcomputere har endnu ikke n\u00e5et et niveau, der muligg\u00f8r at kn\u00e6kke traditionelle n\u00f8gler, men anvendelsen af hybridbeskyttelse vil beskytte brugerne mod angreb relateret til opbevaring af opsnappede SSH-sessioner med den tanke, at de kan blive dechifreret i fremtiden, n\u00e5r de n\u00f8dvendige kvantcomputere er tilg\u00e6ngelige.    <\/p>\n<li class=\"l\"> I sftp-serveren er udvidelsen \u00abcopy-data\u00bb tilf\u00f8jet, som g\u00f8r det muligt at kopiere data p\u00e5 serversiden uden at sende dem til klienten, hvis den oprindelige og den m\u00e5lfiler er placeret p\u00e5 samme. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/dts-newyork\/\"   title=\"serveren\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2706\">serveren<\/a>.\n<li class=\"l\"> Til sftp-v\u00e6rkt\u00f8jet er kommandoen \u00abcp\u00bb tilf\u00f8jet for at initiere filkopiering fra klienten til serversiden.    <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56991\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.0, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c SSH 2.0 \u0438 SFTP. \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0443\u0442\u0438\u043b\u0438\u0442\u0430 scp \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 SFTP \u0432\u043c\u0435\u0441\u0442\u043e \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 SCP\/RCP. \u0412 SFTP \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438\u043c\u0451\u043d \u0438 \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 glob-\u0448\u0430\u0431\u043b\u043e\u043d\u043e\u0432 \u0432 \u0438\u043c\u0435\u043d\u0430\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 \u0447\u0435\u0440\u0435\u0437 shell \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0434\u0440\u0443\u0433\u043e\u0433\u043e \u0445\u043e\u0441\u0442\u0430, \u0441\u043e\u0437\u0434\u0430\u044e\u0449\u0430\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-103738","post","type-post","status-publish","format-standard","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=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.0, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 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