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diff --git a/docs/htmldocs/groupmapping.html b/docs/htmldocs/groupmapping.html index 39fb34ce62..39d317e8cf 100644 --- a/docs/htmldocs/groupmapping.html +++ b/docs/htmldocs/groupmapping.html @@ -1,43 +1,48 @@ -<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 12. Mapping MS Windows and Unix Groups</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"><link rel="home" href="index.html" title="SAMBA Project Documentation"><link rel="up" href="optional.html" title="Part III. Advanced Configuration"><link rel="previous" href="passdb.html" title="Chapter 11. Account Information Databases"><link rel="next" href="AccessControls.html" title="Chapter 13. File, Directory and Share Access Controls"></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 12. Mapping MS Windows and Unix Groups</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="passdb.html">Prev</a> </td><th width="60%" align="center">Part III. Advanced Configuration</th><td width="20%" align="right"> <a accesskey="n" href="AccessControls.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="groupmapping"></a>Chapter 12. Mapping MS Windows and Unix Groups</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Jean François</span> <span class="surname">Micouleau</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Gerald</span> <span class="othername">(Jerry)</span> <span class="surname">Carter</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jerry@samba.org">jerry@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">John</span> <span class="othername">H.</span> <span class="surname">Terpstra</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jht@samba.org">jht@samba.org</a>></tt></p></div></div></div></div></div><div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="groupmapping.html#id2921449">Features and Benefits</a></dt><dt><a href="groupmapping.html#id2921551">Discussion</a></dt><dd><dl><dt><a href="groupmapping.html#id2921742">Example Configuration</a></dt></dl></dd><dt><a href="groupmapping.html#id2921806">Configuration Scripts</a></dt><dd><dl><dt><a href="groupmapping.html#id2921820">Sample smb.conf add group script</a></dt><dt><a href="groupmapping.html#id2921889">Script to configure Group Mapping</a></dt></dl></dd><dt><a href="groupmapping.html#id2921981">Common Errors</a></dt><dd><dl><dt><a href="groupmapping.html#id2921997">Adding Groups Fails</a></dt><dt><a href="groupmapping.html#id2922057">Adding MS Windows Groups to MS Windows Groups Fails</a></dt></dl></dd></dl></div><p> +<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 12. Mapping MS Windows and UNIX Groups</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"><link rel="home" href="samba-doc.html" title="SAMBA Project Documentation"><link rel="up" href="optional.html" title="Part III. Advanced Configuration"><link rel="previous" href="passdb.html" title="Chapter 11. Account Information Databases"><link rel="next" href="AccessControls.html" title="Chapter 13. File, Directory and Share Access Controls"></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 12. Mapping MS Windows and UNIX Groups</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="passdb.html">Prev</a> </td><th width="60%" align="center">Part III. Advanced Configuration</th><td width="20%" align="right"> <a accesskey="n" href="AccessControls.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="groupmapping"></a>Chapter 12. Mapping MS Windows and UNIX Groups</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Jean François</span> <span class="surname">Micouleau</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Gerald</span> <span class="othername">(Jerry)</span> <span class="surname">Carter</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jerry@samba.org">jerry@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">John</span> <span class="othername">H.</span> <span class="surname">Terpstra</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jht@samba.org">jht@samba.org</a>></tt></p></div></div></div></div></div><div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="groupmapping.html#id2903181">Features and Benefits</a></dt><dt><a href="groupmapping.html#id2903416">Discussion</a></dt><dd><dl><dt><a href="groupmapping.html#id2903652">Example Configuration</a></dt></dl></dd><dt><a href="groupmapping.html#id2903718">Configuration Scripts</a></dt><dd><dl><dt><a href="groupmapping.html#id2903732">Sample smb.conf add group script</a></dt><dt><a href="groupmapping.html#id2903817">Script to configure Group Mapping</a></dt></dl></dd><dt><a href="groupmapping.html#id2903900">Common Errors</a></dt><dd><dl><dt><a href="groupmapping.html#id2903915">Adding Groups Fails</a></dt><dt><a href="groupmapping.html#id2903984">Adding MS Windows Groups to MS Windows Groups Fails</a></dt><dt><a href="groupmapping.html#id2904010">Adding Domain Users to the Power Users group</a></dt></dl></dd></dl></div><a class="indexterm" name="id2903109"></a><p> Starting with Samba-3, new group mapping functionality is available to create associations - between Windows group SIDs and UNIX groups. The <i class="parameter"><tt>groupmap</tt></i> subcommand + between Windows group SIDs and UNIX groups. The <b class="command">groupmap</b> subcommand included with the <span class="application">net</span> tool can be used to manage these associations. </p><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p> The first immediate reason to use the group mapping on a Samba PDC, is that + <a class="indexterm" name="id2903150"></a> the <i class="parameter"><tt>domain admin group</tt></i> has been removed and should no longer be specified in <tt class="filename">smb.conf</tt>. This parameter was used to give the listed users membership in the <tt class="constant">Domain Admins</tt> Windows group which gave local admin rights on their workstations (in default configurations). - </p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2921449"></a>Features and Benefits</h2></div></div><div></div></div><p> + </p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2903181"></a>Features and Benefits</h2></div></div><div></div></div><p> Samba allows the administrator to create MS Windows NT4 / 200x group accounts and to - arbitrarily associate them with Unix/Linux group accounts. - </p><p> - Group accounts can be managed using the MS Windows NT4 or MS Windows 200x MMC tools - so long as appropriate interface scripts have been provided to <tt class="filename">smb.conf</tt>. - </p><p> + arbitrarily associate them with UNIX/Linux group accounts. + </p><a class="indexterm" name="id2903197"></a><a class="indexterm" name="id2903205"></a><p> + Group accounts can be managed using the MS Windows NT4 or MS Windows 200x / XP Professional MMC tools. + Appropriate interface scripts should be provided in <tt class="filename">smb.conf</tt> if it is desired that UNIX / Linux system + accounts should be automatically created when these tools are used. In the absence of these scripts, and + so long as winbind is running, Samba accounts group accounts that are created using these tools will be + allocated UNIX UIDs/GIDs from the parameters set by the <a class="indexterm" name="id2903232"></a><i class="parameter"><tt>idmap uid</tt></i>/<a class="indexterm" name="id2903245"></a><i class="parameter"><tt>idmap gid</tt></i> settings + in the <tt class="filename">smb.conf</tt> file. + </p><div class="figure"><a name="idmap-group-diag"></a><p class="title"><b>Figure 12.1. IDMAP groups</b></p><div class="mediaobject"><img src="projdoc/imagefiles/idmap-groups.png" width="270" alt="IDMAP groups"></div></div><a class="indexterm" name="id2903314"></a><a class="indexterm" name="id2903322"></a><p> Administrators should be aware that where <tt class="filename">smb.conf</tt> group interface scripts make - direct calls to the Unix/Linux system tools (eg: the shadow utilities, <b class="command">groupadd</b>, - <b class="command">groupdel</b>, <b class="command">groupmod</b>) then the resulting Unix/Linux group names will be subject + direct calls to the UNIX/Linux system tools (eg: the shadow utilities, <b class="command">groupadd</b>, + <b class="command">groupdel</b>, <b class="command">groupmod</b>) then the resulting UNIX/Linux group names will be subject to any limits imposed by these tools. If the tool does NOT allow upper case characters or space characters, then the creation of an MS Windows NT4 / 200x style group of - <i class="parameter"><tt>Engineering Managers</tt></i> will attempt to create an identically named - Unix/Linux group, an attempt that will of course fail! - </p><p> + <span class="emphasis"><em>Engineering Managers</em></span> will attempt to create an identically named + UNIX/Linux group, an attempt that will of course fail! + </p><a class="indexterm" name="id2903374"></a><a class="indexterm" name="id2903382"></a><p> There are several possible work-arounds for the operating system tools limitation. One - method is to use a script that generates a name for the Unix/Linux system group that - fits the operating system limits, and that then just passes the Unix/Linux group id (GID) + method is to use a script that generates a name for the UNIX/Linux system group that + fits the operating system limits, and that then just passes the UNIX/Linux group id (GID) back to the calling Samba interface. This will provide a dynamic work-around solution. </p><p> - Another work-around is to manually create a Unix/Linux group, then manually create the + Another work-around is to manually create a UNIX/Linux group, then manually create the MS Windows NT4 / 200x group on the Samba server and then use the <b class="command">net groupmap</b> tool to connect the two to each other. - </p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2921551"></a>Discussion</h2></div></div><div></div></div><p> + </p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2903416"></a>Discussion</h2></div></div><div></div></div><p> When installing <span class="application">MS Windows NT4 / 200x</span> on a computer, the installation program creates default users and groups, notably the <tt class="constant">Administrators</tt> group, and gives that group privileges necessary privileges to perform essential system tasks. eg: Ability to change the date and time or to kill (or close) any process running on the local machine. - </p><p> + </p><a class="indexterm" name="id2903445"></a><p> The 'Administrator' user is a member of the 'Administrators' group, and thus inherits 'Administrators' group privileges. If a 'joe' user is created to be a member of the 'Administrator' group, 'joe' has exactly the same rights as 'Administrator'. @@ -59,49 +64,49 @@ </p></li><li><p> Map this domadm group to the "Domain Admins" group by running the command: </p><p> - </p><pre class="screen"> - <tt class="prompt">root# </tt><b class="userinput"><tt>net groupmap add ntgroup="Domain Admins" unixgroup=domadm</tt></b> - </pre><p> - </p><p> +</p><pre class="screen"> +<tt class="prompt">root# </tt><b class="userinput"><tt>net groupmap add ntgroup="Domain Admins" unixgroup=domadm</tt></b> +</pre><p> + </p><a class="indexterm" name="id2903569"></a><p> The quotes around "Domain Admins" are necessary due to the space in the group name. Also make sure to leave no whitespace surrounding the equal character (=). </p></li></ol></div><p> Now joe, john and mary are domain administrators! - </p><p> + </p><a class="indexterm" name="id2903594"></a><p> It is possible to map any arbitrary UNIX group to any Windows NT4 / 200x group as well as making any UNIX group a Windows domain group. For example, if you wanted to include a UNIX group (e.g. acct) in a ACL on a local file or printer on a domain member machine, you would flag that group as a domain group by running the following on the Samba PDC: </p><p> - </p><pre class="screen"> - <tt class="prompt">root# </tt><b class="userinput"><tt>net groupmap add rid=1000 ntgroup="Accounting" unixgroup=acct</tt></b> - </pre><p> +</p><pre class="screen"> +<tt class="prompt">root# </tt><b class="userinput"><tt>net groupmap add rid=1000 ntgroup="Accounting" unixgroup=acct</tt></b> +</pre><p> </p><p> Be aware that the RID parameter is a unsigned 32 bit integer that should normally start at 1000. However, this rid must not overlap with any RID assigned - to a user. Verifying this is done differently depending on on the passdb backend + to a user. Verifying this is done differently depending on the passdb backend you are using. Future versions of the tools may perform the verification automatically, but for now the burden is on you. - </p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2921742"></a>Example Configuration</h3></div></div><div></div></div><p> + </p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2903652"></a>Example Configuration</h3></div></div><div></div></div><p> You can list the various groups in the mapping database by executing <b class="command">net groupmap list</b>. Here is an example: </p><p> - </p><pre class="screen"> - <tt class="prompt">root# </tt> <b class="userinput"><tt>net groupmap list</tt></b> - System Administrators (S-1-5-21-2547222302-1596225915-2414751004-1002) -> sysadmin - Domain Admins (S-1-5-21-2547222302-1596225915-2414751004-512) -> domadmin - Domain Users (S-1-5-21-2547222302-1596225915-2414751004-513) -> domuser - Domain Guests (S-1-5-21-2547222302-1596225915-2414751004-514) -> domguest - </pre><p> +</p><pre class="screen"> +<tt class="prompt">root# </tt> <b class="userinput"><tt>net groupmap list</tt></b> +System Administrators (S-1-5-21-2547222302-1596225915-2414751004-1002) -> sysadmin +Domain Admins (S-1-5-21-2547222302-1596225915-2414751004-512) -> domadmin +Domain Users (S-1-5-21-2547222302-1596225915-2414751004-513) -> domuser +Domain Guests (S-1-5-21-2547222302-1596225915-2414751004-514) -> domguest +</pre><p> </p><p> For complete details on <b class="command">net groupmap</b>, refer to the net(8) man page. - </p></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2921806"></a>Configuration Scripts</h2></div></div><div></div></div><p> + </p></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2903718"></a>Configuration Scripts</h2></div></div><div></div></div><p> Everyone needs tools. Some of us like to create our own, others prefer to use canned tools (ie: prepared by someone else for general use). - </p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2921820"></a>Sample <tt class="filename">smb.conf</tt> add group script</h3></div></div><div></div></div><p> - A script to great complying group names for use by the Samba group interfaces: + </p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2903732"></a>Sample <tt class="filename">smb.conf</tt> add group script</h3></div></div><div></div></div><p> + A script to create complying group names for use by the Samba group interfaces: </p><p> -</p><div class="example"><a name="id2921843"></a><p class="title"><b>Example 12.1. smbgrpadd.sh</b></p><pre class="programlisting"> +</p><div class="example"><a name="id2903754"></a><p class="title"><b>Example 12.1. smbgrpadd.sh</b></p><pre class="programlisting"> #!/bin/bash @@ -120,12 +125,10 @@ exit 0 </pre></div><p> </p><p> The <tt class="filename">smb.conf</tt> entry for the above script would look like: - </p><pre class="programlisting"> - add group script = /path_to_tool/smbgrpadd.sh %g - </pre><p> - </p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2921889"></a>Script to configure Group Mapping</h3></div></div><div></div></div><p> - In our example we have created a Unix/Linux group called <i class="parameter"><tt>ntadmin</tt></i>. - Our script will create the additional groups <i class="parameter"><tt>Engineers, Marketoids, Gnomes</tt></i>: + </p><table class="simplelist" border="0" summary="Simple list"><tr><td><i class="parameter"><tt>add group script = /path_to_tool/smbgrpadd.sh %g</tt></i></td></tr></table><p> + </p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2903817"></a>Script to configure Group Mapping</h3></div></div><div></div></div><p> + In our example we have created a UNIX/Linux group called <span class="emphasis"><em>ntadmin</em></span>. + Our script will create the additional groups <span class="emphasis"><em>Orks</em></span>, <span class="emphasis"><em>Elves</em></span>, <span class="emphasis"><em>Gnomes</em></span>: </p><p> </p><pre class="programlisting"> #!/bin/bash @@ -143,36 +146,51 @@ net groupmap modify ntgroup="Print Operators" unixgroup=lp net groupmap modify ntgroup="Replicators" unixgroup=daemon net groupmap modify ntgroup="Power Users" unixgroup=sys -#groupadd Engineers -#groupadd Marketoids -#groupadd Gnomes +groupadd Orks +groupadd Elves +groupadd Gnomes -#net groupmap add ntgroup="Engineers" unixgroup=Engineers type=d -#net groupmap add ntgroup="Marketoids" unixgroup=Marketoids type=d -#net groupmap add ntgroup="Gnomes" unixgroup=Gnomes type=d +net groupmap add ntgroup="Orks" unixgroup=Orks type=d +net groupmap add ntgroup="Elves" unixgroup=Elves type=d +net groupmap add ntgroup="Gnomes" unixgroup=Gnomes type=d </pre><p> </p><p> Of course it is expected that the administrator will modify this to suit local needs. For information regarding the use of the <b class="command">net groupmap</b> tool please refer to the man page. - </p></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2921981"></a>Common Errors</h2></div></div><div></div></div><p> + </p></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2903900"></a>Common Errors</h2></div></div><div></div></div><p> At this time there are many little surprises for the unwary administrator. In a real sense it is imperative that every step of automated control scripts must be carefully tested manually before putting them into active service. -</p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2921997"></a>Adding Groups Fails</h3></div></div><div></div></div><p> +</p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2903915"></a>Adding Groups Fails</h3></div></div><div></div></div><p> This is a common problem when the <b class="command">groupadd</b> is called directly - by the Samba interface script for the <i class="parameter"><tt>add group script</tt></i> in + by the Samba interface script for the <a class="indexterm" name="id2903935"></a><i class="parameter"><tt>add group script</tt></i> in the <tt class="filename">smb.conf</tt> file. </p><p> The most common cause of failure is an attempt to add an MS Windows group account that has either an upper case character and/or a space character in it. </p><p> There are three possible work-arounds. Firstly, use only group names that comply - with the limitations of the Unix/Linux <b class="command">groupadd</b> system tool. + with the limitations of the UNIX/Linux <b class="command">groupadd</b> system tool. The second involves use of the script mentioned earlier in this chapter, and the - third option is to manually create a Unix/Linux group account that can substitute + third option is to manually create a UNIX/Linux group account that can substitute for the MS Windows group name, then use the procedure listed above to map that group to the MS Windows group. - </p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2922057"></a>Adding MS Windows Groups to MS Windows Groups Fails</h3></div></div><div></div></div><p> + </p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2903984"></a>Adding MS Windows Groups to MS Windows Groups Fails</h3></div></div><div></div></div><a class="indexterm" name="id2903992"></a><p> Samba-3 does NOT support nested groups from the MS Windows control environment. - </p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="passdb.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="optional.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="AccessControls.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 11. Account Information Databases </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 13. File, Directory and Share Access Controls</td></tr></table></div></body></html> + </p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2904010"></a>Adding <span class="emphasis"><em>Domain Users</em></span> to the <span class="emphasis"><em>Power Users</em></span> group</h3></div></div><div></div></div><p>“<span class="quote"> + What must I do to add Domain Users to the Power Users group? + </span>”</p><p> + The Power Users group is a group that is local to each Windows + 200x / XP Professional workstation. You can not add the Domain Users group to the Power Users + group automatically, this must be done on each workstation by logging in as the local workstation + <span class="emphasis"><em>administrator</em></span> and then using click on Start / Control Panel / Users and Passwords + now click on the 'Advanced' tab, then on the 'Advanced' Button. + </p><a class="indexterm" name="id2904048"></a><p> + Now click on 'Groups', then double click on 'Power Users'. This will launch the panel to add users + or groups to the local machine 'Power Uses' group. Click on the 'Add' button, select the domain + from which the 'Domain Users' group is to be added, double click on the 'Domain Users' group, then + click on the 'Ok' button. Note: If a logon box is presented during this process please remember to + enter the connect as DOMAIN\UserName. ie: For the domain MIDEARTH and the user 'root' enter + MIDEARTH\root. + </p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="passdb.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="optional.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="AccessControls.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 11. Account Information Databases </td><td width="20%" align="center"><a accesskey="h" href="samba-doc.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 13. File, Directory and Share Access Controls</td></tr></table></div></body></html> |