1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter�35.�Updating and Upgrading Samba</title><link rel="stylesheet" href="../samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.74.0"><link rel="home" href="index.html" title="The Official Samba 3.5.x HOWTO and Reference Guide"><link rel="up" href="migration.html" title="Part�IV.�Migration and Updating"><link rel="prev" href="migration.html" title="Part�IV.�Migration and Updating"><link rel="next" href="NT4Migration.html" title="Chapter�36.�Migration from NT4 PDC to Samba-3 PDC"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter�35.�Updating and Upgrading Samba</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="migration.html">Prev</a>�</td><th width="60%" align="center">Part�IV.�Migration and Updating</th><td width="20%" align="right">�<a accesskey="n" href="NT4Migration.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="upgrading-to-3.0"></a>Chapter�35.�Updating and Upgrading Samba</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Jelmer</span> <span class="othername">R.</span> <span class="orgname">The Samba Team</span> <span class="surname">Vernooij</span></h3><div class="affiliation"><span class="orgname">The Samba Team<br></span><div class="address"><p><code class="email"><<a class="email" href="mailto:jelmer@samba.org">jelmer@samba.org</a>></code></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">John</span> <span class="othername">H.</span> <span class="orgname">Samba Team</span> <span class="surname">Terpstra</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><code class="email"><<a class="email" href="mailto:jht@samba.org">jht@samba.org</a>></code></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">Gerald</span> <span class="othername">(Jerry)</span> <span class="orgname">Samba Team</span> <span class="surname">Carter</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><code class="email"><<a class="email" href="mailto:jerry@samba.org">jerry@samba.org</a>></code></p></div></div></div></div><div><p class="pubdate">August 16, 2007</p></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="upgrading-to-3.0.html#id2676070">Key Update Requirements</a></span></dt><dd><dl><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676098">Upgrading from Samba-3.0.x to Samba-3.2.0</a></span></dt><dt><span class="sect2"><a href="upgrading-to-3.0.html#oldupdatenotes">Upgrading from Samba-2.x to Samba-3.0.25</a></span></dt><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676148">Quick Migration Guide</a></span></dt></dl></dd><dt><span class="sect1"><a href="upgrading-to-3.0.html#id2676299">New Features in Samba-3.x Series</a></span></dt><dd><dl><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676308">New Features in Samba-3.2.x Series</a></span></dt><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676318">New Features in Samba-3.0.x</a></span></dt><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2677518">New Functionality</a></span></dt></dl></dd></dl></div><p> 2This chapter provides a detailed record of changes made during the 3.x series releases. At this time this 3series consists of the 3.0.x series that is under the GNU GPL version 2 license, and the Samba 3.2.x series 4that is being released under the terms of the GNU GPL version 3 license. 5</p><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2676070"></a>Key Update Requirements</h2></div></div></div><p> 6Samba is a fluid product in which there may be significant changes between releases. Some of these changes are 7brought about as a result of changes in the protocols that are used by Microsoft Windows network clients as a 8result of security or functionality updates through official Microsoft patches and updates. Samba must track 9such changes, particularly where they affect the internal operation of Samba itself. 10</p><p> 11Please refer to any notes below that make explicit mention of the version of Samba you are using. In general, 12all changes that apply to a new release will apply to follow-on releases also. For example, changes to Samba 133.0.23 affect all releases up to an including 3.0.25 and later. Samba 3.2.x was originaly cut from Samba 143.0.25 before 3.2.0-specific changes were applied. Unless a 3.0.x series feature is specifically revoked, the 15behavior of the 3.2.x series can be expected to follow the earlier pattern. 16</p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2676098"></a>Upgrading from Samba-3.0.x to Samba-3.2.0</h3></div></div></div><p> 17</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="oldupdatenotes"></a>Upgrading from Samba-2.x to Samba-3.0.25</h3></div></div></div><p> 18<a class="indexterm" name="id2676121"></a> 19<a class="indexterm" name="id2676128"></a> 20<a class="indexterm" name="id2676135"></a> 21This chapter deals exclusively with the differences between Samba-3.0.25 and Samba-2.2.8a. 22It points out where configuration parameters have changed, and provides a simple guide for 23the move from 2.2.x to 3.0.25. 24</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2676148"></a>Quick Migration Guide</h3></div></div></div><p> 25Samba-3.0.25 default behavior should be approximately the same as Samba-2.2.x. 26The default behavior when the new parameter <a class="link" href="smb.conf.5.html#PASSDBBACKEND" target="_top">passdb backend</a> 27is not defined in the <code class="filename">smb.conf</code> file provides the same default behavior as Samba-2.2.x 28with <a class="link" href="smb.conf.5.html#ENCRYPTPASSWORDS" target="_top">encrypt passwords = Yes</a> and 29will use the <code class="filename">smbpasswd</code> database. 30</p><p> 31<a class="indexterm" name="id2676198"></a> 32<a class="indexterm" name="id2676205"></a> 33So why say that <span class="emphasis"><em>behavior should be approximately the same as Samba-2.2.x</em></span>? Because 34Samba-3.0.25 can negotiate new protocols, such as support for native Unicode, that may result in 35differing protocol code paths being taken. The new behavior under such circumstances is not 36exactly the same as the old one. The good news is that the domain and machine SIDs will be 37preserved across the upgrade. 38</p><p> 39<a class="indexterm" name="id2676226"></a> 40<a class="indexterm" name="id2676233"></a> 41<a class="indexterm" name="id2676239"></a> 42<a class="indexterm" name="id2676246"></a> 43If the Samba-2.2.x system is using an LDAP backend, and there is no time to update the LDAP 44database, then make sure that <a class="link" href="smb.conf.5.html#PASSDBBACKEND" target="_top">passdb backend = ldapsam_compat</a> 45is specified in the <code class="filename">smb.conf</code> file. For the rest, behavior should remain more or less the same. 46At a later date, when there is time to implement a new Samba-3-compatible LDAP backend, it is possible 47to migrate the old LDAP database to the new one through use of the <code class="literal">pdbedit</code>. 48See <a class="link" href="passdb.html#pdbeditthing" title="The pdbedit Tool">The <span class="emphasis"><em>pdbedit</em></span> Command</a>. 49</p></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2676299"></a>New Features in Samba-3.x Series</h2></div></div></div><p> 50</p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2676308"></a>New Features in Samba-3.2.x Series</h3></div></div></div><p> 51</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2676318"></a>New Features in Samba-3.0.x</h3></div></div></div><p> 52The major new features are: 53</p><div class="orderedlist"><ol type="1"><li><p> 54<a class="indexterm" name="id2676340"></a> 55<a class="indexterm" name="id2676347"></a> 56 Active Directory support. This release is able to join an ADS realm 57 as a member server and authenticate users using LDAP/Kerberos. 58 </p></li><li><p> 59<a class="indexterm" name="id2676360"></a> 60<a class="indexterm" name="id2676367"></a> 61 Unicode support. Samba will now negotiate Unicode on the wire, and 62 internally there is a much better infrastructure for multibyte 63 and Unicode character sets. 64 </p></li><li><p> 65<a class="indexterm" name="id2676381"></a> 66 New authentication system. The internal authentication system has 67 been almost completely rewritten. Most of the changes are internal, 68 but the new authoring system is also very configurable. 69 </p></li><li><p> 70<a class="indexterm" name="id2676395"></a> 71 New filename mangling system. The filename mangling system has been 72 completely rewritten. An internal database now stores mangling maps 73 persistently. 74 </p></li><li><p> 75<a class="indexterm" name="id2676409"></a> 76 New “<span class="quote">net</span>” command. A new “<span class="quote">net</span>” command has been added. It is 77 somewhat similar to the “<span class="quote">net</span>” command in Windows. Eventually, we 78 plan to replace a bunch of other utilities (such as smbpasswd) 79 with subcommands in “<span class="quote">net</span>”. 80 </p></li><li><p> 81<a class="indexterm" name="id2676437"></a> 82 Samba now negotiates NT-style status32 codes on the wire. This 83 considerably improves error handling. 84 </p></li><li><p> 85<a class="indexterm" name="id2676450"></a> 86 Better Windows 200x/XP printing support, including publishing 87 printer attributes in Active Directory. 88 </p></li><li><p> 89<a class="indexterm" name="id2676463"></a> 90<a class="indexterm" name="id2676470"></a> 91<a class="indexterm" name="id2676477"></a> 92 New loadable RPC modules for passdb backends and character sets. 93 </p></li><li><p> 94<a class="indexterm" name="id2676490"></a> 95 New default dual-daemon winbindd support for better performance. 96 </p></li><li><p> 97<a class="indexterm" name="id2676502"></a> 98<a class="indexterm" name="id2676509"></a> 99<a class="indexterm" name="id2676516"></a> 100 Support for migrating from a Windows NT 4.0 domain to a Samba 101 domain and maintaining user, group, and domain SIDs. 102 </p></li><li><p> 103<a class="indexterm" name="id2676529"></a> 104<a class="indexterm" name="id2676535"></a> 105 Support for establishing trust relationships with Windows NT 4.0 106 domain controllers. 107 </p></li><li><p> 108<a class="indexterm" name="id2676548"></a> 109<a class="indexterm" name="id2676555"></a> 110<a class="indexterm" name="id2676562"></a> 111 Initial support for a distributed Winbind architecture using 112 an LDAP directory for storing SID to UID/GID mappings. 113 </p></li><li><p> 114 Major updates to the Samba documentation tree. 115 </p></li><li><p> 116<a class="indexterm" name="id2676580"></a> 117<a class="indexterm" name="id2676587"></a> 118 Full support for client and server SMB signing to ensure 119 compatibility with default Windows 2003 security settings. 120 </p></li></ol></div><p> 121Plus lots of other improvements! 122</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2676602"></a>Configuration Parameter Changes</h4></div></div></div><p> 123This section contains a brief listing of changes to <code class="filename">smb.conf</code> options since the Samba-2.2.x series up to and 124including Samba-3.0.25. 125</p><p> 126Please refer to the smb.conf(5) man page for complete descriptions of new or modified 127parameters. 128</p><p> 129Whenever a Samba update or upgrade is performed it is highly recommended to read the file called 130<span class="emphasis"><em>WHATSNEW.txt</em></span> that is part of the Samba distribution tarball. This file may also 131be obtain on-line from the Samba <a class="ulink" href="http://www.samba.org/samba/" target="_top">web site</a>, in 132the right column, under Current Stable Release, by clicking on <span class="emphasis"><em>Release Notes</em></span>. 133</p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2676647"></a>Removed Parameters</h4></div></div></div><a class="indexterm" name="id2676653"></a><p> 134In alphabetical order, these are the parameters eliminated from Samba-2.2.x through 3.0.25. 135</p><div class="itemizedlist"><ul type="disc"><li><p>admin log</p></li><li><p>alternate permissions</p></li><li><p>character set</p></li><li><p>client codepage</p></li><li><p>code page directory</p></li><li><p>coding system</p></li><li><p>domain admin group</p></li><li><p>domain guest group</p></li><li><p>enable rid algorithm</p></li><li><p>enable svcctl</p></li><li><p>force unknown acl user</p></li><li><p>hosts equiv</p></li><li><p>ldap filter</p></li><li><p>min password length</p></li><li><p>nt smb support</p></li><li><p>post script</p></li><li><p>printer admin</p></li><li><p>printer driver</p></li><li><p>printer driver file</p></li><li><p>printer driver location</p></li><li><p>read size</p></li><li><p>source environment</p></li><li><p>status </p></li><li><p>strip dot </p></li><li><p>total print jobs</p></li><li><p>unicode</p></li><li><p>use rhosts</p></li><li><p>valid chars</p></li><li><p>vfs options</p></li><li><p>winbind enable local accounts</p></li><li><p>winbind max idle children</p></li><li><p>wins partners</p></li></ul></div></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2676818"></a>New Parameters</h4></div></div></div><p>The following new parameters have been released up to and including Samba 3.0.25 (grouped by function:)</p><p>Remote Management</p><a class="indexterm" name="id2676832"></a><div class="itemizedlist"><ul type="disc"><li><p>abort shutdown script</p></li><li><p>shutdown script</p></li></ul></div><p>User and Group Account Management</p><div class="itemizedlist"><ul type="disc"><li><p>add group script</p></li><li><p>add machine script</p></li><li><p>add user to group script</p></li><li><p>algorithmic rid base</p></li><li><p>delete group script</p></li><li><p>delete user from group script</p></li><li><p>passdb backend</p></li><li><p>rename user script</p></li><li><p>set primary group script</p></li><li><p>username map script</p></li></ul></div><p>Authentication</p><div class="itemizedlist"><ul type="disc"><li><p>auth methods</p></li><li><p>ldap password sync</p></li><li><p>passdb expand explicit</p></li><li><p>realm</p></li></ul></div><p>Protocol Options</p><div class="itemizedlist"><ul type="disc"><li><p>add port command</p></li><li><p>afs token lifetime</p></li><li><p>client lanman auth</p></li><li><p>client NTLMv2 auth</p></li><li><p>client schannel</p></li><li><p>client signing</p></li><li><p>client use spnego</p></li><li><p>defer sharing violations</p></li><li><p>disable netbios</p></li><li><p>dmapi support</p></li><li><p>enable privileges</p></li><li><p>use kerberos keytab</p></li><li><p>log nt token command</p></li><li><p>ntlm auth</p></li><li><p>paranoid server security </p></li><li><p>sendfile</p></li><li><p>server schannel</p></li><li><p>server signing</p></li><li><p>smb ports</p></li><li><p>svcctl list</p></li><li><p>use spnego</p></li></ul></div><p>File Service</p><div class="itemizedlist"><ul type="disc"><li><p>allocation roundup size</p></li><li><p>acl check permissions</p></li><li><p>acl group control</p></li><li><p>acl map full control</p></li><li><p>aio read size</p></li><li><p>aio write size</p></li><li><p>dfree cache time</p></li><li><p>dfree command</p></li><li><p>ea support</p></li><li><p>enable asu support</p></li><li><p>fam change notify</p></li><li><p>force unknown acl user</p></li><li><p>get quota command</p></li><li><p>hide special files</p></li><li><p>hide unwriteable files</p></li><li><p>inherit owner</p></li><li><p>hostname lookups</p></li><li><p>kernel change notify</p></li><li><p>mangle prefix</p></li><li><p>map acl inherit</p></li><li><p>map read only</p></li><li><p>max stat cache size</p></li><li><p>msdfs proxy</p></li><li><p>open files database hash size</p></li><li><p>set quota command</p></li><li><p>store dos attributes</p></li><li><p>use sendfile</p></li><li><p>usershare allow guests</p></li><li><p>usershare max shares</p></li><li><p>usershare owner only</p></li><li><p>usershare path</p></li><li><p>usershare prefix allow list</p></li><li><p>usershare prefix deny list</p></li><li><p>usershare template share</p></li><li><p>vfs objects</p></li></ul></div><p>Printing</p><div class="itemizedlist"><ul type="disc"><li><p>cups options</p></li><li><p>cups server</p></li><li><p>force printername</p></li><li><p>iprint server</p></li><li><p>max reported print jobs</p></li><li><p>printcap cache time</p></li></ul></div><p>Unicode and Character Sets</p><div class="itemizedlist"><ul type="disc"><li><p>display charset</p></li><li><p>dos charset</p></li><li><p>UNIX charset</p></li></ul></div><p>SID to UID/GID Mappings</p><div class="itemizedlist"><ul type="disc"><li><p>idmap backend</p></li><li><p>idmap gid</p></li><li><p>idmap uid</p></li><li><p>username map script</p></li><li><p>winbind nss info</p></li><li><p>winbind offline logon</p></li><li><p>winbind refresh tickets</p></li><li><p>winbind trusted domains only</p></li><li><p>template primary group</p></li></ul></div><p>LDAP</p><div class="itemizedlist"><ul type="disc"><li><p>ldap delete dn</p></li><li><p>ldap group suffix</p></li><li><p>ldap idmap suffix</p></li><li><p>ldap machine suffix</p></li><li><p>ldap passwd sync</p></li><li><p>ldap replication sleep</p></li><li><p>ldap timeout</p></li><li><p>ldap user suffix</p></li></ul></div><p>General Configuration</p><div class="itemizedlist"><ul type="disc"><li><p>eventlog list</p></li><li><p>preload modules</p></li><li><p>reset on zero vc</p></li><li><p>privatedir</p></li></ul></div></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2677383"></a>Modified Parameters (Changes in Behavior)</h4></div></div></div><div class="itemizedlist"><ul type="disc"><li><p>acl group control (new default is No, deprecated parameter)</p></li><li><p>change notify timeout (scope changed)</p></li><li><p>dos filemode (disabled by default)</p></li><li><p>dos filetimes (enabled by default)</p></li><li><p>enable asu support (disabled by default)</p></li><li><p>enable privileges (enabled by default)</p></li><li><p>encrypt passwords (enabled by default) </p></li><li><p>host msdfs (enabled by default)</p></li><li><p>mangling method (set to hash2 by default) </p></li><li><p>map to guest</p></li><li><p>only user (deprecated)</p></li><li><p>passwd chat</p></li><li><p>passwd program</p></li><li><p>password server</p></li><li><p>restrict anonymous (integer value)</p></li><li><p>security (new ads value)</p></li><li><p>strict locking (auto by default)</p></li><li><p>winbind cache time (increased to 5 minutes)</p></li><li><p>winbind enum groups (disabled by default)</p></li><li><p>winbind enum users (disabled by default)</p></li><li><p>winbind nested groups (enabled by default)</p></li><li><p>winbind uid (deprecated in favor of idmap uid)</p></li><li><p>winbind gid (deprecated in favor of idmap gid)</p></li><li><p>winbindd nss info</p></li><li><p>write cache (deprecated)</p></li></ul></div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2677518"></a>New Functionality</h3></div></div></div><p> 136<a class="indexterm" name="id2677526"></a> 137 The major changes in behavior since that Samba-2.2.x series are documented in this section. 138 Please refer to the <code class="filename">WHATSNEW.txt</code> file that ships with every release of 139 Samba to obtain detailed information regarding the changes that have been made during the 140 life of the current Samba release. 141 </p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2677545"></a>TDB Data Files</h4></div></div></div><a class="indexterm" name="id2677551"></a><p> 142 Refer to <a class="link" href="install.html" title="Chapter�1.�How to Install and Test SAMBA">Installation, Chapter 1</a>, <a class="link" href="install.html#tdbdocs" title="TDB Database File Information">Chapter 1</a> 143 for information pertaining to the Samba-3 data files, their location and the information that must be 144 preserved across server migrations, updates and upgrades. 145 </p><p> 146<a class="indexterm" name="id2677581"></a> 147 Please remember to back up your existing ${lock directory}/*tdb before upgrading to Samba-3. If necessary, 148 Samba will upgrade databases as they are opened. Downgrading from Samba-3 to 2.2, or reversion to an earlier 149 version of Samba-3 from a later release, is an unsupported path. 150 </p><p> 151<a class="indexterm" name="id2677596"></a> 152 The old Samba-2.2.x tdb files are described in <a class="link" href="upgrading-to-3.0.html#oldtdbfiledesc" title="Table�35.1.�Samba-2.2.x TDB File Descriptions">the next table</a>. 153 </p><div class="table"><a name="oldtdbfiledesc"></a><p class="title"><b>Table�35.1.�Samba-2.2.x TDB File Descriptions</b></p><div class="table-contents"><table summary="Samba-2.2.x TDB File Descriptions" border="1"><colgroup><col align="left"><col align="justify"><col align="left"></colgroup><thead><tr><th align="left">Name</th><th align="justify">Description</th><th align="center">Backup?</th></tr></thead><tbody><tr><td align="left">account_policy</td><td align="justify">User policy settings</td><td align="left">yes</td></tr><tr><td align="left">brlock</td><td align="justify">Byte-range file locking information.</td><td align="left">no</td></tr><tr><td align="left">connections</td><td align="justify"><p>Client connection information</p></td><td align="left">no</td></tr><tr><td align="left">locking</td><td align="justify">Temporary file locking data.</td><td align="left">no</td></tr><tr><td align="left">messages</td><td align="justify"><p>Temporary storage of messages being processed by smbd.</p></td><td align="left">no</td></tr><tr><td align="left">ntdrivers</td><td align="justify"><p>Stores per-printer driver information.</p></td><td align="left">yes</td></tr><tr><td align="left">ntforms</td><td align="justify"><p>Stores per-printer forms information.</p></td><td align="left">yes</td></tr><tr><td align="left">ntprinters</td><td align="justify"><p>Stores the per-printer devmode configuration settings.</p></td><td align="left">yes</td></tr><tr><td align="left">printing/*.tdb</td><td align="justify"><p>Cached output from lpq command created on a per-print-service basis.</p></td><td align="left">no</td></tr><tr><td align="left">registry</td><td align="justify"><p>Read-only Samba registry skeleton that provides support for 154 exporting various database tables via the winreg RPCs.</p></td><td align="left">no</td></tr><tr><td align="left">sessionid</td><td align="justify"><p>Temporary cache for miscellaneous session information.</p></td><td align="left">no</td></tr><tr><td align="left">share_info</td><td align="justify">Share ACL settings.</td><td align="left">yes</td></tr><tr><td align="left">unexpected</td><td align="justify"><p>Packets received for which no process was listening.</p></td><td align="left">no</td></tr><tr><td align="left">winbindd_cache</td><td align="justify"><p>Cache of identity information received from an NT4 or an ADS domain.</p></td><td align="left">yes</td></tr><tr><td align="left">winbindd_idmap</td><td align="justify"><p>New ID map table from SIDS to UNIX UIDs/GIDs.</p></td><td align="left">yes</td></tr></tbody></table></div></div><br class="table-break"></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2677897"></a>Changes in Behavior</h4></div></div></div><p> 155 The following issues are known changes in behavior between Samba-2.2 and 156 Samba-3 that may affect certain installations of Samba. 157 </p><div class="orderedlist"><ol type="1"><li><p> 158<a class="indexterm" name="id2677918"></a> 159<a class="indexterm" name="id2677925"></a> 160<a class="indexterm" name="id2677932"></a> 161 When operating as a member of a Windows domain, Samba-2.2 would map any users authenticated by the remote DC 162 to the “<span class="quote">guest account</span>” if a UID could not be obtained via the getpwnam() call. Samba-3 rejects 163 the connection with the error message “<span class="quote">NT_STATUS_LOGON_FAILURE.</span>” There is no current workaround 164 to re-establish the Samba-2.2 behavior. 165 </p></li><li><p> 166<a class="indexterm" name="id2677956"></a> 167<a class="indexterm" name="id2677963"></a> 168 When adding machines to a Samba-2.2 controlled domain, the 169 “<span class="quote">add user script</span>” was used to create the UNIX identity of the 170 machine trust account. Samba-3 introduces a new “<span class="quote">add machine 171 script</span>” that must be specified for this purpose. Samba-3 will 172 not fall back to using the “<span class="quote">add user script</span>” in the absence of 173 an “<span class="quote">add machine script</span>”. 174 </p></li></ol></div></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2677993"></a>Passdb Backends and Authentication</h4></div></div></div><p> 175 There have been a few new changes that Samba administrators should be 176 aware of when moving to Samba-3. 177 </p><div class="orderedlist"><ol type="1"><li><p> 178<a class="indexterm" name="id2678014"></a> 179 Encrypted passwords have been enabled by default in order to 180 interoperate better with out-of-the-box Windows client 181 installations. This does mean that either (a) a Samba account 182 must be created for each user, or (b) “<span class="quote">encrypt passwords = no</span>” 183 must be explicitly defined in <code class="filename">smb.conf</code>. 184 </p></li><li><p> 185<a class="indexterm" name="id2678040"></a> 186<a class="indexterm" name="id2678046"></a> 187<a class="indexterm" name="id2678053"></a> 188 Inclusion of new <a class="link" href="smb.conf.5.html#SECURITY" target="_top">security = ads</a> option for integration 189 with an Active Directory domain using the native Windows Kerberos 5 and LDAP protocols. 190 </p></li></ol></div><p> 191<a class="indexterm" name="id2678079"></a> 192 Samba-3 also includes the possibility of setting up chains of authentication methods (<a class="link" href="smb.conf.5.html#AUTHMETHODS" target="_top">auth methods</a>) and account storage backends (<a class="link" href="smb.conf.5.html#PASSDBBACKEND" target="_top">passdb backend</a>). Please refer to 193 the <code class="filename">smb.conf</code> man page and <a class="link" href="passdb.html" title="Chapter�11.�Account Information Databases">Account Information Databases</a>, for 194 details. While both parameters assume sane default values, it is likely that you will need to understand what 195 the values actually mean in order to ensure Samba operates correctly. 196 </p><p> 197<a class="indexterm" name="id2678130"></a> 198<a class="indexterm" name="id2678137"></a> 199<a class="indexterm" name="id2678144"></a> 200 Certain functions of the <code class="literal">smbpasswd</code> tool have been split between the 201 new <code class="literal">smbpasswd</code> utility, the <code class="literal">net</code> tool, and the new <code class="literal">pdbedit</code> 202 utility. See the respective man pages for details. 203 </p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2678178"></a>LDAP</h4></div></div></div><p> 204 This section outlines the new features effecting Samba/LDAP integration. 205 </p><div class="sect4" lang="en"><div class="titlepage"><div><div><h5 class="title"><a name="id2678188"></a>New Schema</h5></div></div></div><p> 206<a class="indexterm" name="id2678196"></a> 207<a class="indexterm" name="id2678202"></a> 208<a class="indexterm" name="id2678209"></a> 209<a class="indexterm" name="id2678216"></a> 210 A new object class (sambaSamAccount) has been introduced to replace 211 the old sambaAccount. This change aids in the renaming of attributes 212 to prevent clashes with attributes from other vendors. There is a 213 conversion script (examples/LDAP/convertSambaAccount) to modify an LDIF 214 file to the new schema. 215 </p><p> 216 Example: 217<a class="indexterm" name="id2678232"></a> 218 </p><pre class="screen"> 219 <code class="prompt">$ </code>ldapsearch .... -LLL -b "ou=people,dc=..." > old.ldif 220 <code class="prompt">$ </code>convertSambaAccount --sid <DOM SID> --input old.ldif --output new.ldif 221 </pre><p> 222<a class="indexterm" name="id2678264"></a> 223 The <DOM SID> can be obtained by running 224</p><pre class="screen"> 225<code class="prompt">$ </code><strong class="userinput"><code>net getlocalsid <DOMAINNAME></code></strong> 226</pre><p> 227<a class="indexterm" name="id2678291"></a> 228 on the Samba PDC as root. 229 </p><p> 230 Under Samba-2.x the domain SID can be obtained by executing: 231<a class="indexterm" name="id2678303"></a> 232</p><pre class="screen"> 233<code class="prompt">$ </code><strong class="userinput"><code>smbpasswd -S <DOMAINNAME></code></strong> 234</pre><p> 235 </p><p> 236<a class="indexterm" name="id2678329"></a> 237<a class="indexterm" name="id2678336"></a> 238<a class="indexterm" name="id2678343"></a> 239<a class="indexterm" name="id2678350"></a> 240 The old <code class="literal">sambaAccount</code> schema may still be used by specifying the 241 <em class="parameter"><code>ldapsam_compat</code></em> passdb backend. However, the sambaAccount and 242 associated attributes have been moved to the historical section of 243 the schema file and must be uncommented before use if needed. 244 The Samba-2.2 object class declaration for a <code class="literal">sambaAccount</code> has not changed 245 in the Samba-3 <code class="filename">samba.schema</code> file. 246 </p><p> 247 Other new object classes and their uses include: 248 </p><div class="itemizedlist"><ul type="disc"><li><p> 249<a class="indexterm" name="id2678397"></a> 250<a class="indexterm" name="id2678404"></a> 251<a class="indexterm" name="id2678410"></a> 252<a class="indexterm" name="id2678417"></a> 253<a class="indexterm" name="id2678424"></a> 254<a class="indexterm" name="id2678431"></a> 255 <code class="literal">sambaDomain</code> domain information used to allocate RIDs 256 for users and groups as necessary. The attributes are added 257 in “<span class="quote">ldap suffix</span>” directory entry automatically if 258 an idmap UID/GID range has been set and the “<span class="quote">ldapsam</span>” 259 passdb backend has been selected. 260 </p></li><li><p> 261<a class="indexterm" name="id2678461"></a> 262<a class="indexterm" name="id2678468"></a> 263<a class="indexterm" name="id2678475"></a> 264 sambaGroupMapping an object representing the 265 relationship between a posixGroup and a Windows 266 group/SID. These entries are stored in the “<span class="quote">ldap 267 group suffix</span>” and managed by the “<span class="quote">net groupmap</span>” command. 268 </p></li><li><p> 269<a class="indexterm" name="id2678500"></a> 270<a class="indexterm" name="id2678507"></a> 271<a class="indexterm" name="id2678514"></a> 272<a class="indexterm" name="id2678520"></a> 273 <code class="literal">sambaUNIXIdPool</code> created in the “<span class="quote">ldap idmap suffix</span>” entry 274 automatically and contains the next available “<span class="quote">idmap UID</span>” and 275 “<span class="quote">idmap GID</span>”. 276 </p></li><li><p> 277<a class="indexterm" name="id2678552"></a> 278<a class="indexterm" name="id2678559"></a> 279 <code class="literal">sambaIdmapEntry</code> object storing a mapping between a 280 SID and a UNIX UID/GID. These objects are created by the 281 idmap_ldap module as needed. 282 </p></li></ul></div></div><div class="sect4" lang="en"><div class="titlepage"><div><div><h5 class="title"><a name="id2678581"></a>New Suffix for Searching</h5></div></div></div><p> 283<a class="indexterm" name="id2678588"></a> 284<a class="indexterm" name="id2678595"></a> 285<a class="indexterm" name="id2678602"></a> 286<a class="indexterm" name="id2678609"></a> 287<a class="indexterm" name="id2678616"></a> 288<a class="indexterm" name="id2678623"></a> 289<a class="indexterm" name="id2678630"></a> 290 The following new <code class="filename">smb.conf</code> parameters have been added to aid in directing 291 certain LDAP queries when <em class="parameter"><code>passdb backend = ldapsam://...</code></em> has been 292 specified. 293 </p><div class="itemizedlist"><ul type="disc"><li><p>ldap suffix used to search for user and computer accounts.</p></li><li><p>ldap user suffix used to store user accounts.</p></li><li><p>ldap machine suffix used to store machine trust accounts.</p></li><li><p>ldap group suffix location of posixGroup/sambaGroupMapping entries.</p></li><li><p>ldap idmap suffix location of sambaIdmapEntry objects.</p></li></ul></div><p> 294<a class="indexterm" name="id2678698"></a> 295<a class="indexterm" name="id2678705"></a> 296 If an <em class="parameter"><code>ldap suffix</code></em> is defined, it will be appended to all of the 297 remaining subsuffix parameters. In this case, the order of the suffix 298 listings in <code class="filename">smb.conf</code> is important. Always place the <em class="parameter"><code>ldap suffix</code></em> first 299 in the list. 300 </p><p> 301 Due to a limitation in Samba's <code class="filename">smb.conf</code> parsing, you should not surround 302 the domain names with quotation marks. 303 </p></div><div class="sect4" lang="en"><div class="titlepage"><div><div><h5 class="title"><a name="id2678746"></a>IdMap LDAP Support</h5></div></div></div><p> 304<a class="indexterm" name="id2678754"></a> 305 Samba-3 supports an LDAP backend for the idmap subsystem. The 306 following options inform Samba that the idmap table should be 307 stored on the directory server <span class="emphasis"><em>onterose</em></span> in the ou=Idmap,dc=quenya,dc=org partition. 308 </p><table class="simplelist" border="0" summary="Simple list"><tr><td> </td></tr><tr><td><em class="parameter"><code>[global]</code></em></td></tr><tr><td>...</td></tr><tr><td><a class="indexterm" name="id2678787"></a><em class="parameter"><code>idmap backend = ldap:ldap://onterose/</code></em></td></tr><tr><td><a class="indexterm" name="id2678799"></a><em class="parameter"><code>ldap idmap suffix = ou=Idmap</code></em></td></tr><tr><td><a class="indexterm" name="id2678811"></a><em class="parameter"><code>idmap uid = 40000-50000</code></em></td></tr><tr><td><a class="indexterm" name="id2678823"></a><em class="parameter"><code>idmap gid = 40000-50000</code></em></td></tr></table><p> 309<a class="indexterm" name="id2678836"></a> 310 This configuration allows Winbind installations on multiple servers to 311 share a UID/GID number space, thus avoiding the interoperability problems 312 with NFS that were present in Samba-2.2. 313 </p></div></div></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="migration.html">Prev</a>�</td><td width="20%" align="center"><a accesskey="u" href="migration.html">Up</a></td><td width="40%" align="right">�<a accesskey="n" href="NT4Migration.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Part�IV.�Migration and Updating�</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">�Chapter�36.�Migration from NT4 PDC to Samba-3 PDC</td></tr></table></div></body></html> 314