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syslog-ng-debun.1.xml
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syslog-ng-debun.1.xml
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<?xml version="1.0"?>
<!--
Copyright (c) 2017 Balabit
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as published
by the Free Software Foundation, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
As an additional exemption you are allowed to compile & link against the
OpenSSL libraries as published by the OpenSSL project. See the file
COPYING for details.
-->
<reference xmlns="http://docbook.org/ns/docbook" version="5.0">
<info>
<productname/>
<title>The syslog-ng-debun manual page</title>
</info>
<refentry xml:id="syslog-ng-debun.1">
<refmeta>
<refentrytitle>syslog-ng-debun</refentrytitle>
<manvolnum>1</manvolnum>
<refmiscinfo class="version">4.6</refmiscinfo>
<refmiscinfo class="source"/>
</refmeta>
<refnamediv>
<refname>syslog-ng-debun</refname>
<refpurpose>syslog-ng DEBUg buNdle generator</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>syslog-ng-debun</command>
<arg>options</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsection xml:id="syslog-ng-debun-mandescription">
<title>Description</title>
<para>NOTE: The <command>syslog-ng-debun</command> application is distributed with the system logging application, and is usually part of the package. The latest version of the application is available at .</para>
<para>This manual page is only an abstract, for the complete documentation of syslog-ng, see <link xmlns:ns1="http://www.w3.org/1999/xlink" ns1:href="https://www.balabit.com/support/documentation/">The syslog-ng Administrator Guide</link>.</para>
<para>The <command>syslog-ng-debun</command> tool collects and saves information about your installation, making troubleshooting easier, especially if you ask help about your related problem.</para>
</refsection>
<refsection>
<title>General Options</title>
<variablelist>
<varlistentry>
<term>
<command>-r</command>
</term>
<listitem>
<para>Run <command>syslog-ng-debun</command>. Using this option is required to actually execute the data collection with <command>syslog-ng-debun</command>. It is needed to prevent accidentally running <command>syslog-ng-debun</command>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-h</command>
</term>
<listitem>
<para>Display the help page.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-l</command>
</term>
<listitem>
<para>Do not collect privacy-sensitive data, for example, process tree, fstab, and so on. If you use with <userinput>-d</userinput>, then the following parameters will be used for debug mode:<userinput>-Fev</userinput></para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-R <directory></command>
</term>
<listitem>
<para>The directory where is installed instead of <filename>/opt/syslog-ng</filename>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-W <directory></command>
</term>
<listitem>
<para>Set the working directory, where the debug bundle will be saved. Default value: <filename>/tmp</filename>. The name of the created file is <userinput>syslog.debun.${host}.${date}.${3-random-characters-or-pid}.tgz</userinput></para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Debug mode options</title>
<variablelist>
<varlistentry>
<term>
<command>-d</command>
</term>
<listitem>
<para>Start in debug mode, using the <userinput>-Fedv --enable-core</userinput> options.</para>
<para>Warning! Using this option under high message load may increase disk I/O during the debug, and the resulting debug bundle can be huge. To exit debug mode, press Enter.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-D <options></command>
</term>
<listitem>
<para>Start in debug mode, using the specified command-line options. To exit debug mode, press Enter. For details on the available options, see <xref linkend="syslog-ng.8"/>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-t <seconds></command>
</term>
<listitem>
<para>Run in noninteractive debug mode for <seconds>, and automatically exit debug mode after the specified number of seconds.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-w <seconds></command>
</term>
<listitem>
<para>Wait <seconds> seconds before starting debug mode.</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>System call tracing</title>
<variablelist>
<varlistentry>
<term>
<command>-s</command>
</term>
<listitem>
<para>Enable syscall tracing (<command>strace -f</command> or <command>truss -f</command>). Note that using <userinput>-s</userinput> itself does not enable debug mode, only traces the system calls of an already running process. To trace system calls in debug mode, use both the <userinput>-s</userinput> and <userinput>-d</userinput> options.</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Packet capture options</title>
<para>Capturing packets requires a packet capture tool on the host. The <command>syslog-ng-debun</command> tool attempts to use <command>tcpdump</command> on most platforms, except for Solaris, where it uses <command>snoop</command>.</para>
<variablelist>
<varlistentry>
<term>
<command>-i <interface></command>
</term>
<listitem>
<para>Capture packets only on the specified interface, for example, <userinput>eth0</userinput>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-p</command>
</term>
<listitem>
<para>Capture incoming packets using the following filter: <userinput>port 514 or port 601 or port 53</userinput></para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-P <options></command>
</term>
<listitem>
<para>Capture incoming packets using the specified filter.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<command>-t <seconds></command>
</term>
<listitem>
<para>Run in noninteractive debug mode for <seconds>, and automatically exit debug mode after the specified number of seconds.</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Examples</title>
<synopsis>syslog-ng-debun -r</synopsis>
<para>Create a simple debug bundle, collecting information about your environment, for example, list packages containing the word: syslog, ldd of your syslog-binary, and so on.</para>
<synopsis>syslog-ng-debun -r -l</synopsis>
<para>Similar to <command>syslog-ng-debun -r</command>, but without privacy-sensitive information. For example, the following is NOT collected: fstab, df output, mount info, ip / network interface configuration, DNS resolv info, and process tree.</para>
<synopsis>syslog-ng-debun -r -d</synopsis>
<para>Similar to <command>syslog-ng-debun -r</command>, but it also stops syslog-ng, then restarts it in debug mode (<userinput>-Fedv --enable-core</userinput>). To stop debug mode, press Enter. The output of the debug mode collected into a separate file, and also added to the debug bundle.</para>
<synopsis>syslog-ng-debun -r -s</synopsis>
<para>Trace the system calls (using <command>strace</command> or <command>truss</command>) of an already running process.</para>
<synopsis>syslog-ng-debun -r -d -s</synopsis>
<para>Restart in debug mode, and also trace the system calls (using <command>strace</command> or <command>truss</command>) of the process.</para>
<synopsis>syslog-ng-debun -r -p</synopsis>
<para>Run packet capture (pcap) with the filter: <userinput>port 514 or port 601 or port 53</userinput> Also waits for pressing Enter, like debug mode.</para>
<synopsis>syslog-ng-debun -r -p -t 10</synopsis>
<para>Noninteractive debug mode: Similar to <command>syslog-ng-debun -r -p</command>, but automatically exit after 10 seconds.</para>
<synopsis>syslog-ng-debun -r -P "host 1.2.3.4" -D "-Fev --enable-core"</synopsis>
<para>Change the packet-capturing filter from the default to <userinput>host 1.2.3.4</userinput>. Also change debugging parameters from the default to <userinput>-Fev --enable-core</userinput>. Since a timeout (<userinput>-t</userinput>) is not given, waits for pressing Enter.</para>
<synopsis>syslog-ng-debun -r -p -d -w 5 -t 10</synopsis>
<para>Collect pcap and debug mode output following this scenario:</para>
<itemizedlist>
<listitem>
<para>Start packet capture with default parameters (<userinput>-p</userinput>)</para>
</listitem>
<listitem>
<para>Wait 5 seconds (<userinput>-w 5</userinput>)</para>
</listitem>
<listitem>
<para>Stop syslog-ng</para>
</listitem>
<listitem>
<para>Start syslog-ng in debug mode with default parameters (<userinput>-d</userinput>)</para>
</listitem>
<listitem>
<para>Wait 10 seconds (<userinput>-t 10</userinput>)</para>
</listitem>
<listitem>
<para>Stop syslog-ng debugging</para>
</listitem>
<listitem>
<para>Start syslog-ng</para>
</listitem>
<listitem>
<para>Stop packet capturing</para>
</listitem>
</itemizedlist>
</refsection>
<refsection>
<title>Files</title>
<para>
<filename>/opt/syslog-ng/bin/loggen</filename>
</para>
</refsection>
<refsection>
<title>See also</title>
<para>
<link linkend="syslog-ng.conf.5"><command>syslog-ng.conf</command>(5)</link>
</para>
<note version="5.0">
<para>For the detailed documentation of see <link xmlns:ns1="http://www.w3.org/1999/xlink" ns1:href="https://www.balabit.com/documents/syslog-ng-ose-latest-guides/en/syslog-ng-ose-guide-admin/html/index.html"><command>The 4.6 Administrator Guide</command></link></para>
<para>If you experience any problems or need help with syslog-ng, visit the <link xmlns:ns1="http://www.w3.org/1999/xlink" ns1:href="https://lists.balabit.hu/mailman/listinfo/syslog-ng"><command>syslog-ng mailing list</command></link>.</para>
<para>For news and notifications about of syslog-ng, visit the <link xmlns:ns1="http://www.w3.org/1999/xlink" ns1:href="https://syslog-ng.org/blogs/"><command>syslog-ng blogs</command></link>.</para>
</note>
</refsection>
<refsection version="5.0">
<title>Author</title>
<para>This manual page was written by the Balabit Documentation Team <documentation@balabit.com>.</para>
</refsection>
<refsection version="5.0">
<title>Copyright</title>
</refsection>
</refentry>
</reference>