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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 3.0.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">&lt;<a class="email" href="mailto:jelmer@samba.org">jelmer@samba.org</a>&gt;</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">&lt;<a class="email" href="mailto:jht@samba.org">jht@samba.org</a>&gt;</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">&lt;<a class="email" href="mailto:jerry@samba.org">jerry@samba.org</a>&gt;</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#id2676183">Key Update Requirements</a></span></dt><dd><dl><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676220">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#id2676269">Quick Migration Guide</a></span></dt></dl></dd><dt><span class="sect1"><a href="upgrading-to-3.0.html#id2676420">New Featuers in Samba-3.x Series</a></span></dt><dd><dl><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676429">New Features in Samba-3.2.x Series</a></span></dt><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2676439">New Features in Samba-3.0.x</a></span></dt><dt><span class="sect2"><a href="upgrading-to-3.0.html#id2677639">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="id2676183"></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="id2676220"></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="id2676242"></a>
19<a class="indexterm" name="id2676249"></a>
20<a class="indexterm" name="id2676256"></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="id2676269"></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="id2676319"></a>
32<a class="indexterm" name="id2676326"></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="id2676347"></a>
40<a class="indexterm" name="id2676354"></a>
41<a class="indexterm" name="id2676360"></a>
42<a class="indexterm" name="id2676367"></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="id2676420"></a>New Featuers 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="id2676429"></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="id2676439"></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="id2676461"></a>
55<a class="indexterm" name="id2676468"></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="id2676481"></a>
60<a class="indexterm" name="id2676488"></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="id2676502"></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="id2676516"></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="id2676530"></a>
76 New &#8220;<span class="quote">net</span>&#8221; command. A new &#8220;<span class="quote">net</span>&#8221; command has been added. It is
77 somewhat similar to the &#8220;<span class="quote">net</span>&#8221; command in Windows. Eventually, we
78 plan to replace a bunch of other utilities (such as smbpasswd)
79 with subcommands in &#8220;<span class="quote">net</span>&#8221;.
80 </p></li><li><p>
81<a class="indexterm" name="id2676558"></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="id2676571"></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="id2676584"></a>
90<a class="indexterm" name="id2676591"></a>
91<a class="indexterm" name="id2676598"></a>
92 New loadable RPC modules for passdb backends and character sets.
93 </p></li><li><p>
94<a class="indexterm" name="id2676611"></a>
95 New default dual-daemon winbindd support for better performance.
96 </p></li><li><p>
97<a class="indexterm" name="id2676623"></a>
98<a class="indexterm" name="id2676630"></a>
99<a class="indexterm" name="id2676637"></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="id2676650"></a>
104<a class="indexterm" name="id2676657"></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="id2676670"></a>
109<a class="indexterm" name="id2676676"></a>
110<a class="indexterm" name="id2676683"></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="id2676701"></a>
117<a class="indexterm" name="id2676708"></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="id2676723"></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="id2676768"></a>Removed Parameters</h4></div></div></div><a class="indexterm" name="id2676774"></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="id2676939"></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="id2676953"></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="id2677504"></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="id2677639"></a>New Functionality</h3></div></div></div><p>
136<a class="indexterm" name="id2677647"></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="id2677666"></a>TDB Data Files</h4></div></div></div><a class="indexterm" name="id2677672"></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="id2677702"></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="id2677717"></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="id2678018"></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="id2678039"></a>
159<a class="indexterm" name="id2678046"></a>
160<a class="indexterm" name="id2678053"></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 &#8220;<span class="quote">guest account</span>&#8221; if a UID could not be obtained via the getpwnam() call. Samba-3 rejects
163 the connection with the error message &#8220;<span class="quote">NT_STATUS_LOGON_FAILURE.</span>&#8221; There is no current workaround
164 to re-establish the Samba-2.2 behavior.
165 </p></li><li><p>
166<a class="indexterm" name="id2678077"></a>
167<a class="indexterm" name="id2678084"></a>
168 When adding machines to a Samba-2.2 controlled domain, the
169 &#8220;<span class="quote">add user script</span>&#8221; was used to create the UNIX identity of the
170 machine trust account. Samba-3 introduces a new &#8220;<span class="quote">add machine
171 script</span>&#8221; that must be specified for this purpose. Samba-3 will
172 not fall back to using the &#8220;<span class="quote">add user script</span>&#8221; in the absence of
173 an &#8220;<span class="quote">add machine script</span>&#8221;.
174 </p></li></ol></div></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2678114"></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="id2678135"></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) &#8220;<span class="quote">encrypt passwords = no</span>&#8221;
183 must be explicitly defined in <code class="filename">smb.conf</code>.
184 </p></li><li><p>
185<a class="indexterm" name="id2678161"></a>
186<a class="indexterm" name="id2678167"></a>
187<a class="indexterm" name="id2678174"></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="id2678200"></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="id2678251"></a>
198<a class="indexterm" name="id2678258"></a>
199<a class="indexterm" name="id2678264"></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="id2678298"></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="id2678309"></a>New Schema</h5></div></div></div><p>
206<a class="indexterm" name="id2678316"></a>
207<a class="indexterm" name="id2678323"></a>
208<a class="indexterm" name="id2678330"></a>
209<a class="indexterm" name="id2678337"></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="id2678353"></a>
218 </p><pre class="screen">
219 <code class="prompt">$ </code>ldapsearch .... -LLL -b "ou=people,dc=..." &gt; old.ldif
220 <code class="prompt">$ </code>convertSambaAccount --sid &lt;DOM SID&gt; --input old.ldif --output new.ldif
221 </pre><p>
222<a class="indexterm" name="id2678385"></a>
223 The &lt;DOM SID&gt; can be obtained by running
224</p><pre class="screen">
225<code class="prompt">$ </code><strong class="userinput"><code>net getlocalsid &lt;DOMAINNAME&gt;</code></strong>
226</pre><p>
227<a class="indexterm" name="id2678412"></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="id2678424"></a>
232</p><pre class="screen">
233<code class="prompt">$ </code><strong class="userinput"><code>smbpasswd -S &lt;DOMAINNAME&gt;</code></strong>
234</pre><p>
235 </p><p>
236<a class="indexterm" name="id2678450"></a>
237<a class="indexterm" name="id2678457"></a>
238<a class="indexterm" name="id2678464"></a>
239<a class="indexterm" name="id2678471"></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="id2678518"></a>
250<a class="indexterm" name="id2678524"></a>
251<a class="indexterm" name="id2678531"></a>
252<a class="indexterm" name="id2678538"></a>
253<a class="indexterm" name="id2678545"></a>
254<a class="indexterm" name="id2678552"></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 &#8220;<span class="quote">ldap suffix</span>&#8221; directory entry automatically if
258 an idmap UID/GID range has been set and the &#8220;<span class="quote">ldapsam</span>&#8221;
259 passdb backend has been selected.
260 </p></li><li><p>
261<a class="indexterm" name="id2678582"></a>
262<a class="indexterm" name="id2678589"></a>
263<a class="indexterm" name="id2678596"></a>
264 sambaGroupMapping an object representing the
265 relationship between a posixGroup and a Windows
266 group/SID. These entries are stored in the &#8220;<span class="quote">ldap
267 group suffix</span>&#8221; and managed by the &#8220;<span class="quote">net groupmap</span>&#8221; command.
268 </p></li><li><p>
269<a class="indexterm" name="id2678621"></a>
270<a class="indexterm" name="id2678628"></a>
271<a class="indexterm" name="id2678635"></a>
272<a class="indexterm" name="id2678641"></a>
273 <code class="literal">sambaUNIXIdPool</code> created in the &#8220;<span class="quote">ldap idmap suffix</span>&#8221; entry
274 automatically and contains the next available &#8220;<span class="quote">idmap UID</span>&#8221; and
275 &#8220;<span class="quote">idmap GID</span>&#8221;.
276 </p></li><li><p>
277<a class="indexterm" name="id2678673"></a>
278<a class="indexterm" name="id2678680"></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="id2678702"></a>New Suffix for Searching</h5></div></div></div><p>
283<a class="indexterm" name="id2678709"></a>
284<a class="indexterm" name="id2678716"></a>
285<a class="indexterm" name="id2678723"></a>
286<a class="indexterm" name="id2678730"></a>
287<a class="indexterm" name="id2678737"></a>
288<a class="indexterm" name="id2678744"></a>
289<a class="indexterm" name="id2678750"></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="id2678819"></a>
295<a class="indexterm" name="id2678826"></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="id2678867"></a>IdMap LDAP Support</h5></div></div></div><p>
304<a class="indexterm" name="id2678875"></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="id2678908"></a><em class="parameter"><code>idmap backend = ldap:ldap://onterose/</code></em></td></tr><tr><td><a class="indexterm" name="id2678920"></a><em class="parameter"><code>ldap idmap suffix = ou=Idmap</code></em></td></tr><tr><td><a class="indexterm" name="id2678932"></a><em class="parameter"><code>idmap uid = 40000-50000</code></em></td></tr><tr><td><a class="indexterm" name="id2678944"></a><em class="parameter"><code>idmap gid = 40000-50000</code></em></td></tr></table><p>
309<a class="indexterm" name="id2678957"></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>
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