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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter�34.�Analyzing and Solving Samba Problems</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.64.1"><link rel="home" href="index.html" title="The Official Samba-3 HOWTO and Reference Guide"><link rel="up" href="troubleshooting.html" title="Part�V.�Troubleshooting"><link rel="previous" href="diagnosis.html" title="Chapter�33.�The Samba Checklist"><link rel="next" href="bugreport.html" title="Chapter�35.�Reporting Bugs"></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�34.�Analyzing and Solving Samba Problems</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="diagnosis.html">Prev</a>�</td><th width="60%" align="center">Part�V.�Troubleshooting</th><td width="20%" align="right">�<a accesskey="n" href="bugreport.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="problems"></a>Chapter�34.�Analyzing and Solving Samba Problems</h2></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">Jelmer</span> <span class="othername">R.</span> <span class="surname">Vernooij</span></h3><div class="affiliation"><span class="orgname">The Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jelmer@samba.org">jelmer@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">David</span> <span class="surname">Bannon</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:dbannon@samba.org">dbannon@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">Dan</span> <span class="surname">Shearer</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:dan@samba.org">dan@samba.org</a>></tt></p></div></div></div></div><div><p class="pubdate">8 Apr 2003</p></div></div><div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="problems.html#id2595660">Diagnostics Tools</a></span></dt><dd><dl><dt><span class="sect2"><a href="problems.html#id2595678">Debugging with Samba Itself</a></span></dt><dt><span class="sect2"><a href="problems.html#id2595814">Tcpdump</a></span></dt><dt><span class="sect2"><a href="problems.html#id2595844">Ethereal</a></span></dt><dt><span class="sect2"><a href="problems.html#id2595986">The Windows Network Monitor</a></span></dt></dl></dd><dt><span class="sect1"><a href="problems.html#id2596258">Useful URLs</a></span></dt><dt><span class="sect1"><a href="problems.html#id2596291">Getting Mailing List Help</a></span></dt><dt><span class="sect1"><a href="problems.html#id2596443">How to Get Off the Mailing Lists</a></span></dt></dl></div><p>
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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter�36.�Analyzing and Solving Samba Problems</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="The Official Samba-3 HOWTO and Reference Guide"><link rel="up" href="troubleshooting.html" title="Part�V.�Troubleshooting"><link rel="prev" href="diagnosis.html" title="Chapter�35.�The Samba Checklist"><link rel="next" href="bugreport.html" title="Chapter�37.�Reporting Bugs"></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�36.�Analyzing and Solving Samba Problems</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="diagnosis.html">Prev</a>�</td><th width="60%" align="center">Part�V.�Troubleshooting</th><td width="20%" align="right">�<a accesskey="n" href="bugreport.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="problems"></a>Chapter�36.�Analyzing and Solving Samba Problems</h2></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">Jelmer</span> <span class="othername">R.</span> <span class="surname">Vernooij</span></h3><div class="affiliation"><span class="orgname">The Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jelmer@samba.org">jelmer@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">David</span> <span class="surname">Bannon</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:dbannon@samba.org">dbannon@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">Dan</span> <span class="surname">Shearer</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:dan@samba.org">dan@samba.org</a>></tt></p></div></div></div></div><div><p class="pubdate">8 Apr 2003</p></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="problems.html#id2616933">Diagnostics Tools</a></span></dt><dd><dl><dt><span class="sect2"><a href="problems.html#id2616951">Debugging with Samba Itself</a></span></dt><dt><span class="sect2"><a href="problems.html#id2617087">Tcpdump</a></span></dt><dt><span class="sect2"><a href="problems.html#id2617117">Ethereal</a></span></dt><dt><span class="sect2"><a href="problems.html#id2617258">The Windows Network Monitor</a></span></dt></dl></dd><dt><span class="sect1"><a href="problems.html#id2617530">Useful URLs</a></span></dt><dt><span class="sect1"><a href="problems.html#id2617563">Getting Mailing List Help</a></span></dt><dt><span class="sect1"><a href="problems.html#id2617715">How to Get Off the Mailing Lists</a></span></dt></dl></div><p>
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There are many sources of information available in the form
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of mailing lists, RFCs and documentation. The documentation that comes
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with the Samba distribution contains good explanations of
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general SMB topics such as browsing.</p><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2595660"></a>Diagnostics Tools</h2></div></div><div></div></div><p>With SMB networking, it is often not immediately clear what
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general SMB topics such as browsing.</p><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2616933"></a>Diagnostics Tools</h2></div></div></div><p>With SMB networking, it is often not immediately clear what
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the cause is of a certain problem. Samba itself provides rather
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useful information, but in some cases you might have to fall back
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to using a <span class="emphasis"><em>sniffer</em></span>. A sniffer is a program that
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listens on your LAN, analyzes the data sent on it and displays it
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on the screen.</p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2595678"></a>Debugging with Samba Itself</h3></div></div><div></div></div><p>
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on the screen.</p><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2616951"></a>Debugging with Samba Itself</h3></div></div></div><p>
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One of the best diagnostic tools for debugging problems is Samba itself.
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You can use the <tt class="option">-d option</tt> for both <span class="application">smbd</span> and <span class="application">nmbd</span> to specify the
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<a class="indexterm" name="id2595704"></a>debug level at which to run.
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<a class="indexterm" name="id2616976"></a>debug level at which to run.
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See the man pages for <span><b class="command">smbd, nmbd</b></span> and
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<tt class="filename">smb.conf</tt> for more information regarding debugging options. The debug
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level can range from 1 (the default) to 10 (100 for debugging passwords).
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</p><pre class="screen">
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<tt class="prompt">$ </tt><b class="userinput"><tt>testparm | more</tt></b>
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<tt class="prompt">$ </tt><b class="userinput"><tt>smbclient -L //{netbios name of server}</tt></b>
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</pre></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2595814"></a>Tcpdump</h3></div></div><div></div></div><p>
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</pre></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2617087"></a>Tcpdump</h3></div></div></div><p>
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<a href="http://www.tcpdump.org/" target="_top">Tcpdump</a> was the first
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UNIX sniffer with SMB support. It is a command-line utility and
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now, its SMB support is somewhat lagging that of <span><b class="command">ethereal</b></span>
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and <span><b class="command">tethereal</b></span>.
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</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2595844"></a>Ethereal</h3></div></div><div></div></div><p>
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</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2617117"></a>Ethereal</h3></div></div></div><p>
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<a href="http://www.ethereal.com/" target="_top">Ethereal</a> is a graphical
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sniffer, available for both UNIX (Gtk) and Windows. Ethereal's
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SMB support is quite good.</p><p>For details on the use of <span><b class="command">ethereal</b></span>, read the well-written
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Ethereal User Guide.</p><div class="figure"><a name="ethereal1"></a><p class="title"><b>Figure�34.1.�Starting a capture.</b></p><div class="mediaobject"><img src="images/ethereal1.png" alt="Starting a capture."></div></div><p>Listen for data on ports 137, 138, 139, and 445. For example, use
44
Ethereal User Guide.</p><div class="figure"><a name="ethereal1"></a><p class="title"><b>Figure�36.1.�Starting a capture.</b></p><div class="mediaobject"><img src="images/ethereal1.png" alt="Starting a capture."></div></div><p>Listen for data on ports 137, 138, 139, and 445. For example, use
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the filter <b class="userinput"><tt>port 137, port 138, port 139, or port
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445</tt></b> as seen in <a href="problems.html#ethereal1" title="Figure�34.1.�Starting a capture.">Starting a capture</a> snapshot.</p><p>A console version of ethereal is available as well and is called
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<span><b class="command">tethereal</b></span>.</p><div class="figure"><a name="ethereal2"></a><p class="title"><b>Figure�34.2.�Main ethereal data window.</b></p><div class="mediaobject"><img src="images/ethereal2.png" alt="Main ethereal data window."></div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2595986"></a>The Windows Network Monitor</h3></div></div><div></div></div><p>
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445</tt></b> as seen in <a href="problems.html#ethereal1" title="Figure�36.1.�Starting a capture.">Starting a capture</a> snapshot.</p><p>A console version of ethereal is available as well and is called
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<span><b class="command">tethereal</b></span>.</p><div class="figure"><a name="ethereal2"></a><p class="title"><b>Figure�36.2.�Main ethereal data window.</b></p><div class="mediaobject"><img src="images/ethereal2.png" alt="Main ethereal data window."></div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2617258"></a>The Windows Network Monitor</h3></div></div></div><p>
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For tracing things on Microsoft Windows NT, Network Monitor
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(aka Netmon) is available on Microsoft Developer Network CDs,
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the Windows NT Server install CD and the SMS CDs. The version of
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of network traffic directed to the local NT box and broadcasts on the
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local subnet. Be aware that Ethereal can read and write Netmon
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</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2596005"></a>Installing Network Monitor on an NT Workstation</h4></div></div><div></div></div><p>
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</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2617277"></a>Installing Network Monitor on an NT Workstation</h4></div></div></div><p>
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Installing Netmon on an NT workstation requires a couple
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of steps. The following are instructions for installing Netmon V4.00.349, which comes
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with Microsoft Windows NT Server 4.0, on Microsoft Windows NT
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Now copy the files from the NT Server in <tt class="filename">%SYSTEMROOT%\System32\netmon</tt>
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to <tt class="filename">%SYSTEMROOT%\System32\netmon</tt> on the Workstation and set permissions
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as you deem appropriate for your site. You will need administrative rights on the NT box to run Netmon.
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</p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2596234"></a>Installing Network Monitor on Windows 9x/Me</h4></div></div><div></div></div><p>
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</p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="id2617507"></a>Installing Network Monitor on Windows 9x/Me</h4></div></div></div><p>
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To install Netmon on Windows 9x/Me, install the Network Monitor Agent
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from the Windows 9x/Me CD (<tt class="filename">\admin\nettools\netmon</tt>).
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There is a readme file located with the Netmon driver files on the CD if you need
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information on how to do this. Copy the files from a working Netmon installation.
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</p></div></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2596258"></a>Useful URLs</h2></div></div><div></div></div><div class="itemizedlist"><ul type="disc"><li><p>See how Scott Merrill simulates a BDC behavior at
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</p></div></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2617530"></a>Useful URLs</h2></div></div></div><div class="itemizedlist"><ul type="disc"><li><p>See how Scott Merrill simulates a BDC behavior at
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<a href="http://www.skippy.net/linux/smb-howto.html" target="_top">
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http://www.skippy.net/linux/smb-howto.html</a>. </p></li><li><p>FTP site for older SMB specs:
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<a href="ftp://ftp.microsoft.com/developr/drg/CIFS/" target="_top">
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ftp://ftp.microsoft.com/developr/drg/CIFS/</a></p></li></ul></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2596291"></a>Getting Mailing List Help</h2></div></div><div></div></div><p>
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ftp://ftp.microsoft.com/developr/drg/CIFS/</a></p></li></ul></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2617563"></a>Getting Mailing List Help</h2></div></div></div><p>
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There are a number of Samba-related mailing lists. Go to <a href="http://samba.org" target="_top">http://samba.org</a>, click on your nearest mirror
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and then click on <span><b class="command">Support</b></span> and next click on <span><b class="command">
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Samba-related mailing lists</b></span>.
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the pipe to the error), you can send the *.CAP file as well.</p></li><li><p>Please think carefully before attaching a document to an email.
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Consider pasting the relevant parts into the body of the message. The Samba
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mailing lists go to a huge number of people. Do they all need a copy of your
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<tt class="filename">smb.conf</tt> in their attach directory?</p></li></ul></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2596443"></a>How to Get Off the Mailing Lists</h2></div></div><div></div></div><p>To have your name removed from a Samba mailing list, go to the same
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<tt class="filename">smb.conf</tt> in their attach directory?</p></li></ul></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2617715"></a>How to Get Off the Mailing Lists</h2></div></div></div><p>To have your name removed from a Samba mailing list, go to the same
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place where you went to
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subscribe to it. Go to <a href="http://lists.samba.org/" target="_top">http://lists.samba.org</a>,
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click on your nearest mirror, click on <span><b class="command">Support</b></span> and
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Please do not post messages to the list asking to be removed. You will only
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be referred to the above address (unless that process failed in some way).
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</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="diagnosis.html">Prev</a>�</td><td width="20%" align="center"><a accesskey="u" href="troubleshooting.html">Up</a></td><td width="40%" align="right">�<a accesskey="n" href="bugreport.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter�33.�The Samba Checklist�</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">�Chapter�35.�Reporting Bugs</td></tr></table></div></body></html>
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</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="diagnosis.html">Prev</a>�</td><td width="20%" align="center"><a accesskey="u" href="troubleshooting.html">Up</a></td><td width="40%" align="right">�<a accesskey="n" href="bugreport.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter�35.�The Samba Checklist�</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">�Chapter�37.�Reporting Bugs</td></tr></table></div></body></html>
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