Changeset 134 for branches/samba-3.0/docs/htmldocs/manpages/smbd.8.html
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- May 23, 2008, 6:56:41 AM (17 years ago)
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r44 r134 1 <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>smbd</title><link rel="stylesheet" href=" samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.71.0"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="smbd.8"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>smbd — server to provide SMB/CIFS services to clients</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="literal">smbd</code> [-D] [-F] [-S] [-i] [-h] [-V] [-b] [-d <debug level>] [-l <log directory>] [-p <port number(s)>] [-P <profiling level>] [-O <socket option>] [-s <configuration file>]</p></div></div><div class="refsect1" lang="en"><a name="id259605"></a><h2>DESCRIPTION</h2><p>This program is part of the <ahref="samba.7.html"><span class="citerefentry"><span class="refentrytitle">samba</span>(7)</span></a> suite.</p><p><code class="literal">smbd</code> is the server daemon that1 <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>smbd</title><link rel="stylesheet" href="../samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.73.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="smbd.8"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>smbd — server to provide SMB/CIFS services to clients</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="literal">smbd</code> [-D] [-F] [-S] [-i] [-h] [-V] [-b] [-d <debug level>] [-l <log directory>] [-p <port number(s)>] [-P <profiling level>] [-O <socket option>] [-s <configuration file>]</p></div></div><div class="refsect1" lang="en"><a name="id282811"></a><h2>DESCRIPTION</h2><p>This program is part of the <a class="citerefentry" href="samba.7.html"><span class="citerefentry"><span class="refentrytitle">samba</span>(7)</span></a> suite.</p><p><code class="literal">smbd</code> is the server daemon that 2 2 provides filesharing and printing services to Windows clients. 3 3 The server provides filespace and printer services to … … 9 9 server can provide is given in the man page for the 10 10 configuration file controlling the attributes of those 11 services (see <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a>. This man page will not describe the11 services (see <a class="citerefentry" href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a>. This man page will not describe the 12 12 services, but will concentrate on the administrative aspects 13 13 of running the server.</p><p>Please note that there are significant security 14 implications to running this server, and the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> manual page should be regarded as mandatory reading before14 implications to running this server, and the <a class="citerefentry" href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> manual page should be regarded as mandatory reading before 15 15 proceeding with installation.</p><p>A session is created whenever a client requests one. 16 16 Each client gets a copy of the server for each session. This … … 22 22 the configuration file will not affect connections to any service 23 23 that is already established. Either the user will have to 24 disconnect from the service, or <code class="literal">smbd</code> killed and restarted.</p></div><div class="refsect1" lang="en"><a name="id2 59430"></a><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-D</span></dt><dd><p>If specified, this parameter causes24 disconnect from the service, or <code class="literal">smbd</code> killed and restarted.</p></div><div class="refsect1" lang="en"><a name="id283420"></a><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-D</span></dt><dd><p>If specified, this parameter causes 25 25 the server to operate as a daemon. That is, it detaches 26 26 itself and runs in the background, fielding requests … … 49 49 output, as if the <code class="literal">-S</code> parameter had been 50 50 given. 51 </p></dd><dt><span class="term">-V</span></dt><dd><p>Prints the program version number. 52 </p></dd><dt><span class="term">-s <configuration file></span></dt><dd><p>The file specified contains the 53 configuration details required by the server. The 54 information in this file includes server-specific 55 information such as what printcap file to use, as well 56 as descriptions of all the services that the server is 57 to provide. See <code class="filename">smb.conf</code> for more information. 58 The default configuration file name is determined at 59 compile time.</p></dd><dt><span class="term">-d|--debuglevel=level</span></dt><dd><p><em class="replaceable"><code>level</code></em> is an integer 60 from 0 to 10. The default value if this parameter is 61 not specified is zero.</p><p>The higher this value, the more detail will be 51 </p></dd><dt><span class="term">-d|--debuglevel=level</span></dt><dd><p><em class="replaceable"><code>level</code></em> is an integer 52 from 0 to 10. The default value if this parameter is 53 not specified is 0.</p><p>The higher this value, the more detail will be 62 54 logged to the log files about the activities of the 63 55 server. At level 0, only critical errors and serious … … 69 61 use only by developers and generate HUGE amounts of log 70 62 data, most of which is extremely cryptic.</p><p>Note that specifying this parameter here will 71 override the <a class="indexterm" name="id260163"></a> parameter 72 in the <code class="filename">smb.conf</code> file.</p></dd><dt><span class="term">-l|--logfile=logdirectory</span></dt><dd><p>Base directory name for log/debug files. The extension 63 override the <a class="link" href="smb.conf.5.html#LOGLEVEL">log level</a> parameter 64 in the <code class="filename">smb.conf</code> file.</p></dd><dt><span class="term">-V</span></dt><dd><p>Prints the program version number. 65 </p></dd><dt><span class="term">-s <configuration file></span></dt><dd><p>The file specified contains the 66 configuration details required by the server. The 67 information in this file includes server-specific 68 information such as what printcap file to use, as well 69 as descriptions of all the services that the server is 70 to provide. See <code class="filename">smb.conf</code> for more information. 71 The default configuration file name is determined at 72 compile time.</p></dd><dt><span class="term">-l|--log-basename=logdirectory</span></dt><dd><p>Base directory name for log/debug files. The extension 73 73 <code class="constant">".progname"</code> will be appended (e.g. log.smbclient, 74 74 log.smbd, etc...). The log file is never removed by the client. … … 77 77 Samba was built.</p></dd><dt><span class="term">-p|--port<port number(s)></span></dt><dd><p><em class="replaceable"><code>port number(s)</code></em> is a 78 78 space or comma-separated list of TCP ports smbd should listen on. 79 The default value is taken from the <a class=" indexterm" name="id300451"></a>portsparameter in <code class="filename">smb.conf</code></p><p>The default ports are 139 (used for SMB over NetBIOS over TCP)79 The default value is taken from the <a class="link" href="smb.conf.5.html#PORTS">ports</a> parameter in <code class="filename">smb.conf</code></p><p>The default ports are 139 (used for SMB over NetBIOS over TCP) 80 80 and port 445 (used for plain SMB over TCP). 81 81 </p></dd><dt><span class="term">-P|--profiling-level<profiling level></span></dt><dd><p><em class="replaceable"><code>profiling level</code></em> is a … … 83 83 0 turns off profiling, 1 turns on counter profiling only, 84 84 2 turns on complete profiling, and 3 resets all profiling data. 85 </p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id3 00484"></a><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term"><code class="filename">/etc/inetd.conf</code></span></dt><dd><p>If the server is to be run by the85 </p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id324629"></a><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term"><code class="filename">/etc/inetd.conf</code></span></dt><dd><p>If the server is to be run by the 86 86 <code class="literal">inetd</code> meta-daemon, this file 87 87 must contain suitable startup information for the … … 94 94 must contain a mapping of service name (e.g., netbios-ssn) 95 95 to service port (e.g., 139) and protocol type (e.g., tcp). 96 </p></dd><dt><span class="term"><code class="filename">/usr/local/samba/lib/smb.conf</code></span></dt><dd><p>This is the default location of the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> server configuration file. Other common places that systems96 </p></dd><dt><span class="term"><code class="filename">/usr/local/samba/lib/smb.conf</code></span></dt><dd><p>This is the default location of the <a class="citerefentry" href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> server configuration file. Other common places that systems 97 97 install this file are <code class="filename">/usr/samba/lib/smb.conf</code> 98 98 and <code class="filename">/etc/samba/smb.conf</code>.</p><p>This file describes all the services the server 99 is to make available to clients. See <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> for more information.</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id300604"></a><h2>LIMITATIONS</h2><p>On some systems <code class="literal">smbd</code> cannot change uid back99 is to make available to clients. See <a class="citerefentry" href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> for more information.</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id324741"></a><h2>LIMITATIONS</h2><p>On some systems <code class="literal">smbd</code> cannot change uid back 100 100 to root after a setuid() call. Such systems are called 101 101 trapdoor uid systems. If you have such a system, … … 103 103 two different users at once. Attempts to connect the 104 104 second user will result in access denied or 105 similar.</p></div><div class="refsect1" lang="en"><a name="id3 00622"></a><h2>ENVIRONMENT VARIABLES</h2><div class="variablelist"><dl><dt><span class="term"><code class="envar">PRINTER</code></span></dt><dd><p>If no printer name is specified to105 similar.</p></div><div class="refsect1" lang="en"><a name="id324758"></a><h2>ENVIRONMENT VARIABLES</h2><div class="variablelist"><dl><dt><span class="term"><code class="envar">PRINTER</code></span></dt><dd><p>If no printer name is specified to 106 106 printable services, most systems will use the value of 107 107 this variable (or <code class="constant">lp</code> if this variable is 108 108 not defined) as the name of the printer to use. This 109 is not specific to the server, however.</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id3 00650"></a><h2>PAM INTERACTION</h2><p>Samba uses PAM for authentication (when presented with a plaintext109 is not specific to the server, however.</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id324785"></a><h2>PAM INTERACTION</h2><p>Samba uses PAM for authentication (when presented with a plaintext 110 110 password), for account checking (is this account disabled?) and for 111 111 session management. The degree too which samba supports PAM is restricted 112 by the limitations of the SMB protocol and the <a class=" indexterm" name="id300660"></a>obey pam restrictions <ahref="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> paramater. When this is set, the following restrictions apply:112 by the limitations of the SMB protocol and the <a class="link" href="smb.conf.5.html#OBEYPAMRESTRICTIONS">obey pam restrictions</a> <a class="citerefentry" href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> paramater. When this is set, the following restrictions apply: 113 113 </p><div class="itemizedlist"><ul type="disc"><li><p><span class="emphasis"><em>Account Validation</em></span>: All accesses to a 114 114 samba server are checked … … 120 120 Note also that some older pam configuration files may need a line 121 121 added for session support. 122 </p></li></ul></div></div><div class="refsect1" lang="en"><a name="id3 00698"></a><h2>VERSION</h2><p>This man page is correct for version 3.0 of123 the Samba suite.</p></div><div class="refsect1" lang="en"><a name="id3 00709"></a><h2>DIAGNOSTICS</h2><p>Most diagnostics issued by the server are logged122 </p></li></ul></div></div><div class="refsect1" lang="en"><a name="id324832"></a><h2>VERSION</h2><p>This man page is correct for version 3.0 of 123 the Samba suite.</p></div><div class="refsect1" lang="en"><a name="id324841"></a><h2>DIAGNOSTICS</h2><p>Most diagnostics issued by the server are logged 124 124 in a specified log file. The log file name is specified 125 125 at compile time, but may be overridden on the command line.</p><p>The number and nature of diagnostics available depends … … 130 130 diagnostic. At this stage your best bet is still to grep the 131 131 source code and inspect the conditions that gave rise to the 132 diagnostics you are seeing.</p></div><div class="refsect1" lang="en"><a name="id3 00731"></a><h2>TDB FILES</h2><p>Samba stores it's data in several TDB (Trivial Database) files, usually located in <code class="filename">/var/lib/samba</code>.</p><p>132 diagnostics you are seeing.</p></div><div class="refsect1" lang="en"><a name="id324864"></a><h2>TDB FILES</h2><p>Samba stores it's data in several TDB (Trivial Database) files, usually located in <code class="filename">/var/lib/samba</code>.</p><p> 133 133 (*) information persistent across restarts (but not 134 134 necessarily important to backup). 135 </p><div class="variablelist"><dl><dt><span class="term">account_policy.tdb*</span></dt><dd><p>NT account policy settings such as pw expiration, etc...</p></dd><dt><span class="term">brlock.tdb</span></dt><dd><p>byte range locks</p></dd><dt><span class="term">browse.dat</span></dt><dd><p>browse lists</p></dd><dt><span class="term">connections.tdb</span></dt><dd><p>share connections (used to enforce max connections, etc...)</p></dd><dt><span class="term">gencache.tdb</span></dt><dd><p>generic caching db</p></dd><dt><span class="term">group_mapping.tdb*</span></dt><dd><p>group mapping information</p></dd><dt><span class="term">locking.tdb</span></dt><dd><p>share modes & oplocks</p></dd><dt><span class="term">login_cache.tdb*</span></dt><dd><p>bad pw attempts</p></dd><dt><span class="term">messages.tdb</span></dt><dd><p>Samba messaging system</p></dd><dt><span class="term">netsamlogon_cache.tdb*</span></dt><dd><p>cache of user net_info_3 struct from net_samlogon() request (as a domain member)</p></dd><dt><span class="term">ntdrivers.tdb*</span></dt><dd><p>installed printer drivers</p></dd><dt><span class="term">ntforms.tdb*</span></dt><dd><p>installed printer forms</p></dd><dt><span class="term">ntprinters.tdb*</span></dt><dd><p>installed printer information</p></dd><dt><span class="term">printing/</span></dt><dd><p>directory containing tdb per print queue of cached lpq output</p></dd><dt><span class="term">registry.tdb</span></dt><dd><p>Windows registry skeleton (connect via regedit.exe)</p></dd><dt><span class="term">sessionid.tdb</span></dt><dd><p>session information (e.g. support for 'utmp = yes')</p></dd><dt><span class="term">share_info.tdb*</span></dt><dd><p>share acls</p></dd><dt><span class="term">winbindd_cache.tdb</span></dt><dd><p>winbindd's cache of user lists, etc...</p></dd><dt><span class="term">winbindd_idmap.tdb*</span></dt><dd><p>winbindd's local idmap db</p></dd><dt><span class="term">wins.dat*</span></dt><dd><p>wins database when 'wins support = yes'</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id3 00963"></a><h2>SIGNALS</h2><p>Sending the <code class="literal">smbd</code> a SIGHUP will cause it to135 </p><div class="variablelist"><dl><dt><span class="term">account_policy.tdb*</span></dt><dd><p>NT account policy settings such as pw expiration, etc...</p></dd><dt><span class="term">brlock.tdb</span></dt><dd><p>byte range locks</p></dd><dt><span class="term">browse.dat</span></dt><dd><p>browse lists</p></dd><dt><span class="term">connections.tdb</span></dt><dd><p>share connections (used to enforce max connections, etc...)</p></dd><dt><span class="term">gencache.tdb</span></dt><dd><p>generic caching db</p></dd><dt><span class="term">group_mapping.tdb*</span></dt><dd><p>group mapping information</p></dd><dt><span class="term">locking.tdb</span></dt><dd><p>share modes & oplocks</p></dd><dt><span class="term">login_cache.tdb*</span></dt><dd><p>bad pw attempts</p></dd><dt><span class="term">messages.tdb</span></dt><dd><p>Samba messaging system</p></dd><dt><span class="term">netsamlogon_cache.tdb*</span></dt><dd><p>cache of user net_info_3 struct from net_samlogon() request (as a domain member)</p></dd><dt><span class="term">ntdrivers.tdb*</span></dt><dd><p>installed printer drivers</p></dd><dt><span class="term">ntforms.tdb*</span></dt><dd><p>installed printer forms</p></dd><dt><span class="term">ntprinters.tdb*</span></dt><dd><p>installed printer information</p></dd><dt><span class="term">printing/</span></dt><dd><p>directory containing tdb per print queue of cached lpq output</p></dd><dt><span class="term">registry.tdb</span></dt><dd><p>Windows registry skeleton (connect via regedit.exe)</p></dd><dt><span class="term">sessionid.tdb</span></dt><dd><p>session information (e.g. support for 'utmp = yes')</p></dd><dt><span class="term">share_info.tdb*</span></dt><dd><p>share acls</p></dd><dt><span class="term">winbindd_cache.tdb</span></dt><dd><p>winbindd's cache of user lists, etc...</p></dd><dt><span class="term">winbindd_idmap.tdb*</span></dt><dd><p>winbindd's local idmap db</p></dd><dt><span class="term">wins.dat*</span></dt><dd><p>wins database when 'wins support = yes'</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id325083"></a><h2>SIGNALS</h2><p>Sending the <code class="literal">smbd</code> a SIGHUP will cause it to 136 136 reload its <code class="filename">smb.conf</code> configuration 137 137 file within a short period of time.</p><p>To shut down a user's <code class="literal">smbd</code> process it is recommended … … 141 141 an <code class="literal">smbd</code> is to send it a SIGTERM (-15) signal and wait for 142 142 it to die on its own.</p><p>The debug log level of <code class="literal">smbd</code> may be raised 143 or lowered using <a href="smbcontrol.1.html"><span class="citerefentry"><span class="refentrytitle">smbcontrol</span>(1)</span></a> program (SIGUSR[1|2] signals are no longer143 or lowered using <a class="citerefentry" href="smbcontrol.1.html"><span class="citerefentry"><span class="refentrytitle">smbcontrol</span>(1)</span></a> program (SIGUSR[1|2] signals are no longer 144 144 used since Samba 2.2). This is to allow transient problems to be diagnosed, 145 145 whilst still running at a normally low log level.</p><p>Note that as the signal handlers send a debug write, … … 148 148 issuing them. It is possible to make the signal handlers safe 149 149 by un-blocking the signals before the select call and re-blocking 150 them after, however this would affect performance.</p></div><div class="refsect1" lang="en"><a name="id3 01049"></a><h2>SEE ALSO</h2><p><a href="hosts_access.5.html"><span class="citerefentry"><span class="refentrytitle">hosts_access</span>(5)</span></a>, <a href="inetd.8.html"><span class="citerefentry"><span class="refentrytitle">inetd</span>(8)</span></a>, <a href="nmbd.8.html"><span class="citerefentry"><span class="refentrytitle">nmbd</span>(8)</span></a>, <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a>, <a href="smbclient.1.html"><span class="citerefentry"><span class="refentrytitle">smbclient</span>(1)</span></a>, <a href="testparm.1.html"><span class="citerefentry"><span class="refentrytitle">testparm</span>(1)</span></a>, <ahref="testprns.1.html"><span class="citerefentry"><span class="refentrytitle">testprns</span>(1)</span></a>, and the150 them after, however this would affect performance.</p></div><div class="refsect1" lang="en"><a name="id325161"></a><h2>SEE ALSO</h2><p><a class="citerefentry" href="hosts_access.5.html"><span class="citerefentry"><span class="refentrytitle">hosts_access</span>(5)</span></a>, <a class="citerefentry" href="inetd.8.html"><span class="citerefentry"><span class="refentrytitle">inetd</span>(8)</span></a>, <a class="citerefentry" href="nmbd.8.html"><span class="citerefentry"><span class="refentrytitle">nmbd</span>(8)</span></a>, <a class="citerefentry" href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a>, <a class="citerefentry" href="smbclient.1.html"><span class="citerefentry"><span class="refentrytitle">smbclient</span>(1)</span></a>, <a class="citerefentry" href="testparm.1.html"><span class="citerefentry"><span class="refentrytitle">testparm</span>(1)</span></a>, <a class="citerefentry" href="testprns.1.html"><span class="citerefentry"><span class="refentrytitle">testprns</span>(1)</span></a>, and the 151 151 Internet RFC's <code class="filename">rfc1001.txt</code>, <code class="filename">rfc1002.txt</code>. 152 152 In addition the CIFS (formerly SMB) specification is available 153 as a link from the Web page <a href="http://samba.org/cifs/" target="_top">154 http://samba.org/cifs/</a>.</p></div><div class="refsect1" lang="en"><a name="id3 01133"></a><h2>AUTHOR</h2><p>The original Samba software and related utilities153 as a link from the Web page <a class="ulink" href="http://samba.org/cifs/" target="_top"> 154 http://samba.org/cifs/</a>.</p></div><div class="refsect1" lang="en"><a name="id325240"></a><h2>AUTHOR</h2><p>The original Samba software and related utilities 155 155 were created by Andrew Tridgell. Samba is now developed 156 156 by the Samba Team as an Open Source project similar 157 157 to the way the Linux kernel is developed.</p><p>The original Samba man pages were written by Karl Auer. 158 158 The man page sources were converted to YODL format (another 159 excellent piece of Open Source software, available at <a href="ftp://ftp.icce.rug.nl/pub/unix/" target="_top">159 excellent piece of Open Source software, available at <a class="ulink" href="ftp://ftp.icce.rug.nl/pub/unix/" target="_top"> 160 160 ftp://ftp.icce.rug.nl/pub/unix/</a>) and updated for the Samba 2.0 161 161 release by Jeremy Allison. The conversion to DocBook for
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