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FAQ.html
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<div id="header">
<h1>Frequently Asked Questions</h1>
<div id="toc"><div id="toctitle">Table of Contents</div>
<div class='toclevel1'><a href='#_general'>General</a></div>
<div class='toclevel2'><a href='#_is_thruk_an_abbreviation_what_does_thruk_mean'>Is Thruk an Abbreviation? What does Thruk mean?</a></div>
<div class='toclevel2'><a href='#_where_is_the_statusmap'>Where is the statusmap?</a></div>
<div class='toclevel2'><a href='#_authorization_authentication_is_not_working'>Authorization/Authentication is not working</a></div>
<div class='toclevel2'><a href='#_all_dates_and_times_are_displayed_with_the_wrong_timezone'>All dates and times are displayed with the wrong timezone</a></div>
<div class='toclevel1'><a href='#_usage'>Usage</a></div>
<div class='toclevel2'><a href='#_how_do_i_select_hosts_services_on_the_status_page'>How do i select hosts/services on the status page?</a></div>
<div class='toclevel1'><a href='#_where_can_i_see_the_full_command_line_for_a_host_or_servicecheck'>Where can i see the full command line for a host or servicecheck?</a></div>
<div class='toclevel1'><a href='#_customization'>Customization</a></div>
<div class='toclevel2'><a href='#_how_to_change_the_side_menu'>How to change the side menu</a></div>
<div class='toclevel2'><a href='#_how_can_i_integrate_nagvis_maps'>How can i integrate Nagvis Maps</a></div>
<div class='toclevel2'><a href='#_how_can_i_add_more_themes'>How can i add more themes?</a></div>
<div class='toclevel2'><a href='#_how_can_i_disable_themes'>How can i disable themes?</a></div>
<div class='toclevel1'><a href='#_installation'>Installation</a></div>
<div class='toclevel2'><a href='#_is_it_possible_to_operate_thruk_in_a_cluster'>Is it possible to operate Thruk in a cluster?</a></div>
<div class='toclevel2'><a href='#_how_can_i_enable_debug_mode'>How can i enable debug mode?</a></div>
<div class='toclevel1'><a href='#_errors'>Errors</a></div>
<div class='toclevel2'><a href='#_backend_not_available'>Backend not available</a></div>
<div class='toclevel2'><a href='#_undefined_symbol_perl_istack_sp_ptr'>undefined symbol: Perl_Istack_sp_ptr</a></div>
<div class='toclevel2'><a href='#_broken_pdf_reports_in_centos_rhel_5'>Broken PDF Reports in Centos/Rhel 5</a></div>
</div>
</div>
<div id="content">
<h2 id="_general">General</h2>
<div class="sectionbody">
<h3 id="_is_thruk_an_abbreviation_what_does_thruk_mean">Is Thruk an Abbreviation? What does Thruk mean?</h3><div style="clear:left"></div>
<div class="paragraph"><p>Thruk is just a random word and has no meaning. Pronounce it like <em>Truck</em>.</p></div>
<h3 id="_where_is_the_statusmap">Where is the statusmap?</h3><div style="clear:left"></div>
<div class="paragraph"><p>The statusmap got replaced by a own variant which is more scalable in
large environments. Its shipped as Thruk addon, but enabled by
default. See the <a href="http://thruk.org/plugins.html">plugins page</a> for details and screenshots.</p></div>
<h3 id="_authorization_authentication_is_not_working">Authorization/Authentication is not working</h3><div style="clear:left"></div>
<div class="paragraph"><p>Authentication is done by the webserver, so authentication is only available
with the fastcgi version.</p></div>
<h3 id="_all_dates_and_times_are_displayed_with_the_wrong_timezone">All dates and times are displayed with the wrong timezone</h3><div style="clear:left"></div>
<div class="paragraph"><p>Try to set the use_timezone configuration option in your
thruk_local.conf</p></div>
</div>
<h2 id="_usage">Usage</h2>
<div class="sectionbody">
<h3 id="_how_do_i_select_hosts_services_on_the_status_page">How do i select hosts/services on the status page?</h3><div style="clear:left"></div>
<div class="paragraph"><p>Just click on the empty table row when the row is highlighted. This only works
if you do not click on a link.</p></div>
</div>
<h2 id="_where_can_i_see_the_full_command_line_for_a_host_or_servicecheck">Where can i see the full command line for a host or servicecheck?</h2>
<div class="sectionbody">
<div class="paragraph"><p>You have to enable the option <em>set show_full_commandline</em>. It’s
disabled for security reasons by default. So be careful to not display
any passwords though the webinterface.</p></div>
</div>
<h2 id="_customization">Customization</h2>
<div class="sectionbody">
<h3 id="_how_to_change_the_side_menu">How to change the side menu</h3><div style="clear:left"></div>
<div class="paragraph"><p>The main left menu is highly editable through menu_local.conf. It is
recommended apply changes only to your menu_local.conf in order to
avoid conflicts on updating Thruk.</p></div>
<div class="paragraph"><p>Open your menu_local.conf (create one if it does not exists) with your
preferred text editor and check the config. You can add new sections
with:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>add_section('name' => 'General');</tt></pre>
</div></div>
<div class="paragraph"><p>To add a new link use the following syntax:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>add_link('name' => 'Home', 'href' => '/thruk/main.html');</tt></pre>
</div></div>
<div class="ulist"><div class="title">Available parameters</div><ul>
<li>
<p>
name: This is how the link is called in the web front end.
</p>
</li>
<li>
<p>
href: This is the destination link optional you can add.
</p>
</li>
<li>
<p>
target: If Link shall open in a new window.
</p>
</li>
<li>
<p>
icon: Used for themes which support icons.
</p>
</li>
</ul></div>
<div class="paragraph"><p>Then the config looks like this:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>add_link('name' => 'Nagios, 'href' => '/nagios', 'target' => '_new');</tt></pre>
</div></div>
<div class="paragraph"><p>You can include the main menu config with the perl do statement.
Ex.: If you just want to add a new link to your config menu, your
menu_local.conf could look like this:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>do $ENV{'OMD_ROOT'}.'/share/thruk/menu.conf';
add_link('name' => 'Wato', 'href' => '/'.$ENV{'OMD_SITE'}.'/check_mk/wato.py?filename=wato.mk');</tt></pre>
</div></div>
<div class="paragraph"><p>This example just puts the Wato link from check_mks Multisite in your
config section. Replace the ENV part with a proper path if you do not
use <a href="http://omdistro.org">OMD</a>.</p></div>
<div class="paragraph"><p>Adding Items to existing sections can also be achieved by
<em>insert_item</em>:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>insert_item('General', { 'href' => 'http://your-company.com', 'name' => 'Company' });</tt></pre>
</div></div>
<div class="paragraph"><p>Existing Items can be removed with the <em>remove_item</em> function:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>remove_item('Reports', 'Availability');</tt></pre>
</div></div>
<h3 id="_how_can_i_integrate_nagvis_maps">How can i integrate Nagvis Maps</h3><div style="clear:left"></div>
<div class="paragraph"><p>Integrating Nagivs is currently only possible when frames are enabled.
So first step is editing the thruk_local.conf and set</p></div>
<div class="literalblock">
<div class="content">
<pre><tt> use_frames = 1</tt></pre>
</div></div>
<div class="paragraph"><p>Integration is easy. Just copy and edit your menu_local.conf.
For Nagvis 1.4 add something like:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt> add_section('name' => 'Nagvis');
add_link('name' => "Nagvis", 'href' => '/nagvis/frontend/nagvis-js/index.php');
add_sub_link('name' => "demo", 'href' => '/nagvis/index.php?Map=demo');
add_sub_link('name' => "demo-map2", 'href' => '/nagvis/index.php?Map=demo-map2');</tt></pre>
</div></div>
<div class="paragraph"><p>For Nagvis 1.5:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>add_section('name' => 'Nagvis');
add_link('name' => "Nagvis", 'href' => '/nagvis/frontend/nagvis-js/index.php');
add_sub_link('name' => "demo", 'href' => '/nagvis/frontend/nagvis-js/index.php?mod=Map&act=view&show=demo');
add_sub_link('name' => "demo-map2", 'href' => '/nagvis/frontend/nagvis-js/index.php?mod=Map&act=view&show=demo-map2');</tt></pre>
</div></div>
<div class="paragraph"><p>Thruk has to be restarted.</p></div>
<h3 id="_how_can_i_add_more_themes">How can i add more themes?</h3><div style="clear:left"></div>
<div class="paragraph"><p>Themes are located under <em>themes</em>. Just copy and modify the one you
like. See the <a href="http://thruk.org/themes.html">themes page</a> for details.</p></div>
<h3 id="_how_can_i_disable_themes">How can i disable themes?</h3><div style="clear:left"></div>
<div class="paragraph"><p>Themes can be disabled by removing the symlink from your
<em>themes/themes-enabled</em> directory.
See the <a href="http://thruk.org/themes.html">themes page</a> for details.</p></div>
</div>
<h2 id="_installation">Installation</h2>
<div class="sectionbody">
<h3 id="_is_it_possible_to_operate_thruk_in_a_cluster">Is it possible to operate Thruk in a cluster?</h3><div style="clear:left"></div>
<div class="paragraph"><p>Yes, just put a load balancer before 2 (or more) Thruk installations
and make sure the <em>var</em> directory is shared between all instances ( by
NFS, DRBD or similar ). There is usually not much traffic in this
folder.</p></div>
<h3 id="_how_can_i_enable_debug_mode">How can i enable debug mode?</h3><div style="clear:left"></div>
<h4 id="_thruk_server">Thruk Server</h4>
<div class="paragraph"><p>For a quick test without authorization, you can start the thruk server
with <em>./script/thruk_server.pl -d</em>. Make sure your log4perl.conf has
DEBUG theshold configured. You can also move your log4perl.conf away,
so all debug output will be sent to the terminal.</p></div>
<h4 id="_fastcgi_server">FastCGI Server</h4>
<div class="paragraph"><p>This is a bit more complicate.
First you have to enable debuging for your thruk application.
Add <em>-Debug</em> to the use Catalyst in your lib/Thruk.pm. The part
should look like this:</p></div>
<div class="listingblock">
<div class="content">
<pre><tt> use Catalyst qw/
-Debug
Unicode::Encoding
Authentication
Authorization::ThrukRoles
CustomErrorMessage
ConfigLoader
StackTrace
Static::Simple
Redirect
Compress::Gzip
/;
our $VERSION = '0.60';</tt></pre>
</div></div>
<div class="paragraph"><p>Then make sure you have a log4perl.conf with DEBUG threshold configured.
Finally restart your fastcgi server.</p></div>
</div>
<h2 id="_errors">Errors</h2>
<div class="sectionbody">
<h3 id="_backend_not_available">Backend not available</h3><div style="clear:left"></div>
<div class="paragraph"><p>The socat solution for using livestatus with SSL does not longer work
due to problems with socat and json data. If you see errors like:</p></div>
<div class="listingblock">
<div class="content">
<pre><tt>[ERROR][Thruk.Controller.Root] Caught exception in Thruk::Controller::status->index "socket error at thruk/script/../lib/Monitoring/Livestatus/Class/Base/Table.pm line 186"
[ERROR][Thruk.Controller.error] internal server error</tt></pre>
</div></div>
<div class="paragraph"><p>and you use socat for livestatus over ssl, please change to stunnel or
ssh with the normal xinetd solution.</p></div>
<h3 id="_undefined_symbol_perl_istack_sp_ptr">undefined symbol: Perl_Istack_sp_ptr</h3><div style="clear:left"></div>
<div class="paragraph"><p>You will get perl errors about undefined symbols when you try to
install a debian package on ubuntu or a ubuntu 11 deb file on ubuntu
12 or any package on a different platform than the package was build
for.</p></div>
<div class="listingblock">
<div class="content">
<pre><tt>/usr/bin/perl: symbol lookup error: /usr/lib/thruk/perl5/x86_64-linux-gnu-thread-multi/auto/List/Util/Util.so: undefined symbol: Perl_Istack_sp_ptr</tt></pre>
</div></div>
<div class="paragraph"><p>The solution is simple, use the right package or source installation
if no package is available for your platform.</p></div>
<h3 id="_broken_pdf_reports_in_centos_rhel_5">Broken PDF Reports in Centos/Rhel 5</h3><div style="clear:left"></div>
<div class="paragraph"><p>PDF reports won’t work with libcairo < 1.8.8. Therefor you may use the
prepared packages for cairo 1.8.8 on rhel/centos 5 on the
<a href="http://thruk.org/download.html">download
page</a>.</p></div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated 2012-11-30 00:39:53 CEST
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