{"id":1086,"date":"2016-11-04T22:36:53","date_gmt":"2016-11-04T22:36:53","guid":{"rendered":"http:\/\/www.xn--nrdoteket-l8a.dk\/?p=1086"},"modified":"2016-11-05T09:48:57","modified_gmt":"2016-11-05T09:48:57","slug":"saadan-fikser-du-lav-mac-osx-ydelse-paa-smb-filoverfoersler","status":"publish","type":"post","link":"https:\/\/noerdoteket.dk\/index.php\/2016\/11\/04\/saadan-fikser-du-lav-mac-osx-ydelse-paa-smb-filoverfoersler\/","title":{"rendered":"S\u00e5dan fikser du lav MAC OSX ydelse p\u00e5 SMB filoverf\u00f8rsler"},"content":{"rendered":"<p>Efter opgradering til Sierra konstaterede jeg, at ydelsen mellem min iMac og min QNAP NAS var blevet noget sl\u00f8vere.<\/p>\n<p>Store filer blev kun overf\u00f8rt med omkring 30 MB\/s, hvilket er langt under det man burde forvente med et gigabit LAN mellem iMac og NAS.<\/p>\n<p><!--more--><\/p>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- wp-inpost-add -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-7793103161450012\"\r\n     data-ad-slot=\"1741650889\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<p>Dette g\u00e6lder n\u00e5r man benytter SMB ogs\u00e5 kaldet samba til filoverf\u00f8rsler. Hvis man benytter AFP (Apple Filing Protocol) er der ingen problemer. Jeg benytter SMB, da mine shares skal tilg\u00e5s af en blanding af linux og apple maskiner.<\/p>\n<p>En s\u00f8gen p\u00e5 Google viste, at jeg ikke var den eneste som har bem\u00e6rket det problem. Det viser sig, at Apple nu som standard har tilf\u00f8jet <a href=\"https:\/\/blogs.technet.microsoft.com\/josebda\/2010\/12\/01\/the-basics-of-smb-signing-covering-both-smb1-and-smb2\/\" target=\"_blank\">client signing<\/a>\u00a0i deres samba\u00a0implementering, og det dr\u00e6ber performance.<\/p>\n<p>Grunden til at Apple har enablet denne feature er utvivlsomt, at\u00a0SMB har v\u00e6ret ramt af sikkerhedshuller, f.eks. <a href=\"http:\/\/badlock.org\/\" target=\"_blank\">Badlock<\/a>. Men jeg finder det nu kritisabelt, at de ikke informerer om en s\u00e5 stor performance nedgang, og anviser mulige workarounds.<\/p>\n<p>Client signing mindsker muligheden for MITM angreb, men hvem ved deres fulde fem benytter SMB over internettet? I et LAN i hjemmet kan jeg ikke se at det skulle v\u00e6re n\u00f8dvendigt.<\/p>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- wp-inpost-add -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-7793103161450012\"\r\n     data-ad-slot=\"1741650889\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<p>&nbsp;<\/p>\n<p>Heldigvis er det ganske simpelt at sl\u00e5 fra. Filen \/etc\/nsmb.conf skal oprettes med f\u00f8lgende indhold:<\/p>\n<p>&nbsp;<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n\r\n&#x5B;default]\r\nsigning_required=no\r\n\r\n<\/pre>\n<p>Det kan g\u00f8res i en terminal med\u00a0denne kommando:<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nprintf &quot;&#x5B;default]\\nsigning_required=no\\n&quot; | sudo tee \/etc\/nsmb.conf &gt;\/dev\/null\r\n<\/pre>\n<p>Efterf\u00f8lgende rebootes Mac&#8217;en, og s\u00e5 skulle SMB overf\u00f8rslerne igen v\u00e6re hurtige. For mit vedkommende gik jeg fra ca. 30 MB\/s til ca. 124 Mb\/s!<\/p>\n<p>Det \u00e6 sgu Najs!<\/p>\n<p>&nbsp;<\/p>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- wp-ad-rect -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-7793103161450012\"\r\n     data-ad-slot=\"8706514482\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Efter opgradering til Sierra konstaterede jeg, at ydelsen mellem min iMac og min QNAP NAS var blevet noget sl\u00f8vere. Store filer blev kun overf\u00f8rt med omkring 30 MB\/s, hvilket er langt under det man burde forvente med et gigabit LAN mellem iMac og NAS.<\/p>\n","protected":false},"author":1,"featured_media":1094,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[199,147,192,200],"tags":[],"class_list":["post-1086","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apple","category-brok","category-netvaerk","category-osx"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u00e5dan fikser du lav MAC OSX ydelse p\u00e5 SMB filoverf\u00f8rsler - N\u00f8rd&#039;o&#039;teket<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/noerdoteket.dk\/index.php\/2016\/11\/04\/saadan-fikser-du-lav-mac-osx-ydelse-paa-smb-filoverfoersler\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00e5dan fikser du lav MAC OSX ydelse p\u00e5 SMB filoverf\u00f8rsler - N\u00f8rd&#039;o&#039;teket\" \/>\n<meta property=\"og:description\" content=\"Efter opgradering til Sierra konstaterede jeg, at ydelsen mellem min iMac og min QNAP NAS var blevet noget sl\u00f8vere. 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