{"id":72850,"date":"2020-03-05T02:41:54","date_gmt":"2020-03-04T23:41:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-samba-4-12-0"},"modified":"2020-03-05T02:41:54","modified_gmt":"2020-03-04T23:41:54","slug":"vypusk-samba-4-12-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-samba-4-12-0","title":{"rendered":"Lan\u00e7amento do Samba 4.12.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/lists.samba.org\/archive\/samba-announce\/2020\/000514.html\">Apresentado<\/a><\/noindex> lan\u00e7amento <noindex><a rel=\"nofollow\" href=\"http:\/\/www.samba.org\/\">Samba 4.12.0<\/a><\/noindex>, dando continuidade ao desenvolvimento da linha <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=35571\">Samba 4<\/a><\/noindex> , com implementa\u00e7\u00e3o completa do controlador de dom\u00ednio e do servi\u00e7o Active Directory, compat\u00edvel com a implementa\u00e7\u00e3o do Windows 2000 e capaz de atender todas as vers\u00f5es de cliente Windows suportadas pela Microsoft, incluindo o Windows 10. O Samba 4 \u00e9 um produto de servidor multifuncional, que tamb\u00e9m oferece a implementa\u00e7\u00e3o de servidor de arquivos, servi\u00e7o de impress\u00e3o e servidor de identifica\u00e7\u00e3o (winbind).<\/p>\n<p>Principais <noindex><a rel=\"nofollow\" href=\"http:\/\/www.samba.org\/samba\/history\/samba-4.12.0.html\">mudan\u00e7as<\/a><\/noindex> no Samba 4.12:<\/p>\n<ul>\n<li class=\"l\"> As implementa\u00e7\u00f5es de fun\u00e7\u00f5es criptogr\u00e1ficas integradas foram removidas do c\u00f3digo-fonte em favor do uso de bibliotecas externas. A biblioteca criptogr\u00e1fica principal escolhida \u00e9 o GnuTLS (requer pelo menos a vers\u00e3o 3.4.7). Al\u00e9m de reduzir poss\u00edveis amea\u00e7as associadas \u00e0 descoberta de vulnerabilidades nas implementa\u00e7\u00f5es internas dos algoritmos criptogr\u00e1ficos, a transi\u00e7\u00e3o para o GnuTLS tamb\u00e9m permitiu um aumento significativo no desempenho ao usar criptografia no SMB3. Durante os testes com a implementa\u00e7\u00e3o do cliente CIFS do n\u00facleo Linux 5.3, foi registrado um aumento de 3 vezes na velocidade de grava\u00e7\u00e3o e de 2,5 vezes na leitura.\n<li class=\"l\"> Adicionado um novo backend para busca em compartilhamentos SMB usando o protocolo <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.samba.org\/index.php\/Spotlight\">Spotlight<\/a><\/noindex>, baseado no mecanismo de busca  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.elastic.co\/elasticsearch\">Elasticsearch<\/a><\/noindex> (anteriormente, um backend com base em <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.gnome.org\/Projects\/Tracker\">GNOME Tracker<\/a><\/noindex>). Tamb\u00e9m foi adicionada a ferramenta &#171;mdfind&#187; com a implementa\u00e7\u00e3o de um cliente que permite enviar consultas de busca a qualquer servidor SMB que tenha o servi\u00e7o RPC Spotlight em execu\u00e7\u00e3o. O valor da configura\u00e7\u00e3o &#171;spotlight backend&#187; foi alterado por padr\u00e3o para &#171;noindex&#187; (para Tracker ou Elasticsearch, os valores &#171;tracker&#187; ou &#171;elasticsearch&#187; devem ser definidos explicitamente).\n<li class=\"l\"> O comportamento das opera\u00e7\u00f5es &#8216;net ads kerberos pac save&#8217; e &#8216;net eventlog export&#8217; foi alterado, agora n\u00e3o sobrescrevem o arquivo; ao tentar exportar para um arquivo existente, um erro \u00e9 exibido.\n<li class=\"l\"> No samba-tool, foi aprimorada a adi\u00e7\u00e3o de registros de contato para membros de grupos. Anteriormente, usando o comando &#8216;samba-tool group addmemers&#8217;, era poss\u00edvel adicionar apenas usu\u00e1rios, grupos e computadores como novos membros de grupos, mas agora foi adicionada a capacidade de incluir contatos como membros de grupos.\n<li class=\"l\"> No samba-tool, foi permitida a filtragem por unidades organizacionais (OU, Organizational Unit) ou sub\u00e1rvore. Novas flags &#171;&#8212;base-dn&#187; e &#171;&#8212;member-base-dn&#187; foram adicionadas, permitindo executar a opera\u00e7\u00e3o apenas em uma parte espec\u00edfica da \u00e1rvore Active Directory, por exemplo, apenas dentro de uma unidade OU.\n<li class=\"l\"> Foi adicionado um novo m\u00f3dulo VFS &#8216;io_uring&#8217;, que utiliza uma nova interface do n\u00facleo Linux <noindex><a rel=\"nofollow\" href=\"http:\/\/kernel.dk\/io_uring.pdf\">io_uring<\/a><\/noindex> para entrada\/sa\u00edda ass\u00edncrona. O io_uring suporta polling de entrada\/sa\u00edda e pode operar com buffering (o mecanismo proposto anteriormente &#171;aio&#187; n\u00e3o suportava entrada\/sa\u00edda buffered). Quando o polling est\u00e1 habilitado, o desempenho do io_uring supera significativamente o aio. Atualmente, a base do io_uring no Samba implementa suporte para SMB_VFS_{PREAD,PWRITE,FSYNC}_SEND\/RECV e reduz a sobrecarga de manter um pool de execu\u00e7\u00e3o multithread (threadpool) no espa\u00e7o do usu\u00e1rio ao usar o backend VFS padr\u00e3o. Para compilar o m\u00f3dulo VFS &#8216;io_uring&#8217;, \u00e9 necess\u00e1rio ter a biblioteca <noindex><a rel=\"nofollow\" href=\"https:\/\/git.kernel.dk\/cgit\/liburing\/\">liburing<\/a><\/noindex> e o kernel Linux 5.1+.\n<li class=\"l\"> No VFS, foi adicionada a capacidade de especificar o valor especial de tempo UTIME_OMIT para indicar a necessidade de ignorar o tempo na fun\u00e7\u00e3o SMB_VFS_NTIMES().\n<li class=\"l\"> B smb.conf, o suporte para o par\u00e2metro &#171;write cache size&#187; foi descontinuado, que perdeu significado ap\u00f3s a introdu\u00e7\u00e3o do suporte ao io_uring.\n<li class=\"l\"> No Samba-DC e no Kerberos, o suporte \u00e0 criptografia usando o algoritmo DES foi descontinuado. O c\u00f3digo weak-crypto foi removido do Heimdal-DC.\n<li class=\"l\"> O m\u00f3dulo vfs_netatalk foi removido, pois estava sem manuten\u00e7\u00e3o e se tornou obsoleto.\n<li class=\"l\"> O backend BIND9_FLATFILE foi declarado obsoleto e ser\u00e1 removido em uma das pr\u00f3ximas vers\u00f5es.\n<li class=\"l\"> A biblioteca zlib foi adicionada \u00e0s depend\u00eancias de constru\u00e7\u00e3o. A implementa\u00e7\u00e3o embutida da zlib foi removida da base de c\u00f3digo (o c\u00f3digo era baseado em uma vers\u00e3o antiga da zlib, que n\u00e3o suportava corretamente a criptografia).\n<li class=\"l\"> Foi estabelecido um teste de fuzzing para a base de c\u00f3digo, incluindo no servi\u00e7o<br \/>\noss-fuzz. Durante o teste de fuzzing foram identificados e corrigidos diversos erros.<\/p>\n<li class=\"l\"> Os requisitos para a vers\u00e3o m\u00ednima do Python foram aumentados de Python<br \/>\n3.4 at\u00e9 Python 3.5. A capacidade de compilar o servidor de arquivos com Python 2 ainda est\u00e1 preservada (antes de rodar .&#047;configure&#8217; e &#8216;make&#8217;, deve-se definir a vari\u00e1vel de ambiente &#8216;PYTHON=python2&#8217;).<\/p>\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52475\">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 Samba 4.12.0, \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 2000 \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 10. 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 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 (winbind). \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\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-72850","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 Samba 4.12.0.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-samba-4-12-0\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"pt_PT\" \/>\n\t\t<meta 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