{"id":183469,"date":"2026-09-25T16:54:25","date_gmt":"2026-09-25T14:54:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/vypusk-samba-4-25-0"},"modified":"2026-09-25T16:54:29","modified_gmt":"2026-09-25T14:54:29","slug":"samba-4-25-0-release","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/samba-4-25-0-release","title":{"rendered":"Vyd\u00e1n\u00ed Samba 4.25.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po \u0161esti m\u011bs\u00edc\u00edch v\u00fdvoje byl vyd\u00e1n Samba 4.25.0, kter\u00e1 pokra\u010duje v rozvoji v\u011btve Samba 4 s plnou implementac\u00ed dom\u00e9nov\u00e9ho kontrol\u00e9ru a slu\u017eby Active Directory, kter\u00e1 je kompatibiln\u00ed s implementac\u00ed Windows Server a schopn\u00e1 obsluhovat v\u0161echny podporovan\u00e9 verze Windows klient\u016f, v\u010detn\u011b Windows 11. Samba 4 je multifunk\u010dn\u00ed serverov\u00fd produkt, kter\u00fd tak\u00e9 poskytuje implementaci souborov\u00e9ho serveru, tiskov\u00e9 slu\u017eby a serveru identifikace (winbind). K\u00f3d projektu je naps\u00e1n v jazyce C a je distribuov\u00e1n pod licenc\u00ed GPLv3.      <\/p>\n<p>Kl\u00ed\u010dov\u00e9 zm\u011bny v Samba 4.25:  <\/p>\n<ul>\n<li class=\"l\"> Do implementace protokolu SMB3 byla p\u0159id\u00e1na experiment\u00e1ln\u00ed podpora trval\u00fdch souborov\u00fdch popisova\u010d\u016f (SMB2_CAP_PERSISTENT_HANDLES), kter\u00e1 umo\u017e\u0148uje klient\u016fm pokra\u010dovat v pr\u00e1ci s otev\u0159en\u00fdmi soubory po p\u0159eru\u0161en\u00ed s\u00ed\u0165ov\u00e9ho spojen\u00ed, restartu, <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-los-angeles\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\">serveru<\/a> nebo p\u0159epnut\u00ed z\u00e1t\u011b\u017ee na z\u00e1lo\u017en\u00ed server. Trval\u00e9 popisova\u010de umo\u017e\u0148uj\u00ed vyhnout se op\u011btovn\u00e9mu otev\u00edr\u00e1n\u00ed soubor\u016f po selh\u00e1n\u00ed serveru, co\u017e je obzvl\u00e1\u0161\u0165 d\u016fle\u017eit\u00e9 p\u0159i hostov\u00e1n\u00ed na souborov\u00e9m <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-newyork\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\">serveru<\/a> Samba virtu\u00e1ln\u00edch stroj\u00edch a clusteringov\u00fdch datab\u00e1z\u00edch.\n<p>Pro pr\u00e1ci je nutn\u00e9 poskytnout v\u00fdhradn\u00ed p\u0159\u00edstup k SMB \u00falo\u017ei\u0161ti a zak\u00e1zat nastaven\u00ed &#171;kernel oplocks&#187;, &#171;kernel share modes&#187; a &#171;posix locking&#187;, co\u017e naru\u0161uje kompatibilitu s POSIX a NFS a tak\u00e9 v\u00fdrazn\u011b sni\u017euje v\u00fdkon kv\u016fli synchronn\u00edmu z\u00e1pisu metadat na disk p\u0159i ka\u017ed\u00e9 operaci. Byly navr\u017eeny dva re\u017eimy zaji\u0161t\u011bn\u00ed dostupnosti: full_outage (v\u00fdchoz\u00ed) \u2014 vytv\u00e1\u0159\u00ed se m\u00edstn\u00ed z\u00e1loha stavu, kter\u00e1 umo\u017e\u0148uje uchovat deskriptory i po \u00fapln\u00e9m selh\u00e1n\u00ed clustra, ale zvy\u0161uje z\u00e1t\u011b\u017e; partial_outage \u2014 rychlej\u0161\u00ed provoz bez z\u00e1lohy, ale deskriptory se ztr\u00e1cej\u00ed, pokud v\u0161echny uzly clustra sel\u017eou sou\u010dasn\u011b.      <\/p>\n<li class=\"l\"> Byl p\u0159id\u00e1n VFS modul vfs_aio_ratelimit, kter\u00fd umo\u017e\u0148uje nastavit omezen\u00ed intenzity po\u017eadavk\u016f (rate limit), kter\u00e9 plat\u00ed v kontextu cel\u00e9ho clustra, a ne jen v r\u00e1mci jednotliv\u00fdch uzl\u016f. Pro koordinaci glob\u00e1ln\u00edho uplatn\u011bn\u00ed omezen\u00ed mus\u00ed b\u00fdt na ka\u017ed\u00e9m uzlu spu\u0161t\u011bn na pozad\u00ed proces ratelimitd, kter\u00fd agreguje aktivitu v\u0161ech proces\u016f smbd na uzlu a p\u0159ed\u00e1v\u00e1 informace na jin\u00e9 uzly clustra. Aktivace vfs_aio_ratelimit se realizuje b\u011bhem sestaven\u00ed uveden\u00edm volby &#171;&#8212;with-ratelimitd&#187;.\n<li class=\"l\"> Byl p\u0159id\u00e1n VFS modul vfs_ceph_rgw pro Ceph RGW (Object Gateway), kter\u00fd umo\u017e\u0148uje exportovat data z Ceph Object Gateway jako SMB \u00falo\u017ei\u0161t\u011b s hierarchick\u00fdm zobrazen\u00edm ulo\u017een\u00fdch objekt\u016f ve form\u011b b\u011b\u017en\u00fdch soubor\u016f a slo\u017eek s \u0159\u00edzen\u00edm p\u0159\u00edstupu na \u00farovni POSIX uid\/gid.\n<li class=\"l\"> Byly implementov\u00e1ny \u00farovn\u011b funk\u010dnosti clusteru, kter\u00e9 p\u0159ipom\u00ednaj\u00ed \u00farovn\u011b <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/domain\/\"   title=\"dom\u00e9ny\" data-wpil-keyword-link=\"linked\">dom\u00e9ny<\/a> a lesy v Active Directory a umo\u017e\u0148uj\u00ed postupnou aktualizaci uzl\u016f v clustru (rolling upgrade). Form\u00e1ty datab\u00e1z\u00ed a intern\u00ed form\u00e1ty v\u00fdm\u011bny zpr\u00e1v, kter\u00e9 ovliv\u0148uj\u00ed interakci uzl\u016f, se m\u011bn\u00ed pouze po v\u00fdslovn\u00e9m zv\u00fd\u0161en\u00ed \u00farovn\u011b pro cel\u00fd clustr, co\u017e zaru\u010duje kompatibilitu uzl\u016f s r\u016fzn\u00fdmi verzemi Samba b\u011bhem aktualizace. Spr\u00e1va se prov\u00e1d\u00ed pomoc\u00ed p\u0159\u00edkaz\u016f &#171;net clusterlevel features|show|showall|upgrade&#187;.\n<li class=\"l\"> Pro \u0161ifrov\u00e1n\u00ed v dom\u00e9n\u011b jsou ve v\u00fdchoz\u00edm nastaven\u00ed zapojeny algoritmy aes128-cts-hmac-sha1-96 a aes256-cts-hmac-sha1-96 pro dom\u00e9ny s \u00farovn\u00ed funk\u010dnosti 2008 a vy\u0161\u0161\u00ed. Zm\u011bna blokuje projev zranitelnosti CVE-2026-20833, kter\u00e1 je zp\u016fsobena pou\u017e\u00edv\u00e1n\u00edm nespolehliv\u00fdch metod \u0161ifrov\u00e1n\u00ed ve Windows Kerberos.\n<li class=\"l\"> V CTDB byly soubory s blokacemi, PID a sokety p\u0159esunuty do podadres\u00e1\u0159\u016f ctdb\/. Inicia\u010dn\u00ed skript ctdb.init byl p\u0159esunut do ctdb\/doc\/examples. Byla p\u0159id\u00e1na podpora monitorov\u00e1n\u00ed hostitel\u016f, jako jsou DNS servery. Funkce detect_init_style() a prom\u011bnn\u00e1 CTDB_INIT_STYLE byly ozna\u010deny jako zastaral\u00e9 (m\u00edsto nich se doporu\u010duje pou\u017e\u00edvat CTDB_PLATFORM_STYLE).    <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66341\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Samba 4.25.0, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0432\u0448\u0438\u0439 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 Samba 4 \u0441 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0430 \u0434\u043e\u043c\u0435\u043d\u0430 \u0438 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 Active Directory, \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0433\u043e \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 Windows Server \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0433\u043e \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u0442\u044c \u0432\u0441\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0435 Microsoft \u0432\u0435\u0440\u0441\u0438\u0438 Windows-\u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 Windows 11. Samba 4 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043c\u043d\u043e\u0433\u043e\u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u043c \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u043c, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u043c \u0442\u0430\u043a\u0436\u0435 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u0441\u0435\u0440\u0432\u0438\u0441\u0430 \u043f\u0435\u0447\u0430\u0442\u0438 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183469","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\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Samba 4.25.0, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0432\u0448\u0438\u0439 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 Samba 4 \u0441 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u043e\u0439 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\u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a Samba 4.25.0 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Samba 4.25.0, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0432\u0448\u0438\u0439 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 Samba 4 \u0441 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 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\/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Vyd\u00e1n\u00ed Samba 4.25.0 | ProHoster","description":"Po 6 m\u011bs\u00edc\u00edch v\u00fdvoje byl p\u0159edstaven vyd\u00e1n\u00ed Samba 4.25.0, kter\u00e9 pokra\u010dovalo ve v\u00fdvoji v\u011btve Samba 4 s plnou realizac\u00ed \u0159adi\u010de dom\u00e9ny a slu\u017eby Active Directory, kompatibiln\u00ed se realizac\u00ed Windows Server.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/samba-4-25-0-release","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a Samba 4.25.0 | ProHoster","og:description":"\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Samba 4.25.0, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0432\u0448\u0438\u0439 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0432\u0435\u0442\u043a\u0438 Samba 4 \u0441 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0430 \u0434\u043e\u043c\u0435\u043d\u0430 \u0438 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 Active Directory, \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0433\u043e \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 Windows Server 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