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<title>Home - All Categories - Products  - Nagios Core  - Troubleshooting  - Common Problems  </title>
<link>https://support.nagios.com/kb/category.php?id=95</link>
<description>This RSS Feed contains Articles of Category in the knowledge base. You can click on the title to view its content. Powered by PHPKB Knowledge Base Software (http://www.knowledgebase-script.com)</description>
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										<guid>https://support.nagios.com/kb/article/how-to-clear-solaris-service-maintenance-status-565.html</guid>
										<title>How To Clear Solaris Service Maintenance Status</title>
										<link>https://support.nagios.com/kb/article/how-to-clear-solaris-service-maintenance-status-565.html</link>
										<description><![CDATA[Problem Description This KB article explains how to clear the Solaris Maintenance Status on a service, specifically the Nagios Core or NRPE service. This KB article will focus specially on Nagios Core and the resolution, however the steps are...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-core-error-could-not-create-or-update-nagios-configtest-760.html</guid>
										<title>Nagios Core - ERROR: Could not create or update nagios.configtest</title>
										<link>https://support.nagios.com/kb/article/nagios-core-error-could-not-create-or-update-nagios-configtest-760.html</link>
										<description><![CDATA[Problem Description This KB article applies to the following error message when starting Nagios Core: ERROR: Could not create or update &#039;/usr/local/nagios/var/nagios.configtest&#039;     Explanation This problem occurs when the nagios user...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-core-failed-to-register-iobroker-756.html</guid>
										<title>Nagios Core - Failed to register iobroker</title>
										<link>https://support.nagios.com/kb/article/nagios-core-failed-to-register-iobroker-756.html</link>
										<description><![CDATA[Problem Description This KB article addresses the following errors you may see in the nagios.log file: [1504231962] wproc: Core Worker 68003: Failed to register iobroker for stdout[1504231962] wproc: Core Worker 68003: Failed to register iobroker for...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-core-how-to-think-with-nagios-to-solve-monitoring-problems-nwc14-459.html</guid>
										<title>Nagios Core - How to Think with Nagios to Solve Monitoring Problems - NWC14</title>
										<link>https://support.nagios.com/kb/article/nagios-core-how-to-think-with-nagios-to-solve-monitoring-problems-nwc14-459.html</link>
										<description><![CDATA[ How to Think with Nagios to Solve Monitoring Problems - NWC14  Welcome to the wonderful journey of monitoring problem solving! The different aspects of the essence of monitoring will be presented to you. You can learn the trick to make a plugin pass...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-core-nagios-did-not-exit-in-a-timely-manner-172.html</guid>
										<title>Nagios Core - Nagios did not exit in a timely manner</title>
										<link>https://support.nagios.com/kb/article/nagios-core-nagios-did-not-exit-in-a-timely-manner-172.html</link>
										<description><![CDATA[Problem Description In larger deployments of nagios, stopping or restarting the nagios service may result in the error: Nagios did not exit in a timely manner This is due to many factors in large deployments, but basically it is just a timeout issue....]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-core-nagios-service-does-not-start-error-processing-object-config-files-128.html</guid>
										<title>Nagios Core - Nagios service does not start - Error processing object config files!</title>
										<link>https://support.nagios.com/kb/article/nagios-core-nagios-service-does-not-start-error-processing-object-config-files-128.html</link>
										<description><![CDATA[Nagios service does not start - Error processing object config files! This article describes how to troubleshoot why the Nagios service will not start due to object configuration errors in Nagios Core. Nagios Core uses plain text files for defining...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-core-nagios-lock-changes-in-4-3-3-onwards-796.html</guid>
										<title>Nagios Core - nagios.lock Changes In 4.3.3 Onwards</title>
										<link>https://support.nagios.com/kb/article/nagios-core-nagios-lock-changes-in-4-3-3-onwards-796.html</link>
										<description><![CDATA[Problem Description This KB article is about the nagios.lock file changes that were introduced in Nagios Core 4.3.3. These changes require an update to your nagios.cfg file, otherwise you will most likely experience the following issues. When you...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-xi-defining-global-environment-variables-489.html</guid>
										<title>Nagios XI - Defining Global Environment Variables</title>
										<link>https://support.nagios.com/kb/article/nagios-xi-defining-global-environment-variables-489.html</link>
										<description><![CDATA[Problem Description When setting up a check in Nagios, you may get a error similar to the following: [Can&#039;t locate Monitoring/Plugin.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-xi-how-to-use-ca-certificates-with-check_ldaps-plugin-525.html</guid>
										<title>Nagios XI - How To Use CA Certificates With check_ldaps Plugin</title>
										<link>https://support.nagios.com/kb/article/nagios-xi-how-to-use-ca-certificates-with-check_ldaps-plugin-525.html</link>
										<description><![CDATA[ Overview This KB article shows you how to use certificate authority (CA) certificates with the check_ldaps plugin.   Problem When you try and execute the check_ldaps plugin: /usr/local/nagios/libexec/check_ldaps -H dc01.domain.local -b &#039;&#039;...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-xi-last-check-time-not-updating-19.html</guid>
										<title>Nagios XI - Last Check Time Not Updating</title>
										<link>https://support.nagios.com/kb/article/nagios-xi-last-check-time-not-updating-19.html</link>
										<description><![CDATA[Summary There are many causes for this error. Most often it is due to a connection issue to the backend historical database, crashed database tables, core scheduling/check execution issues, or lack of resources (causing orphaned checks).    ...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-xi-mk-livestatus-problems-with-mod-gearman-477.html</guid>
										<title>Nagios XI - MK Livestatus Problems With Mod-Gearman</title>
										<link>https://support.nagios.com/kb/article/nagios-xi-mk-livestatus-problems-with-mod-gearman-477.html</link>
										<description><![CDATA[This article has been retired due to obsolescence and is no longer used. Please visit Support.nagios.com for additional resources.  Please note that Mod-Gearman dropped support for Nagios Core in March of 2022. XI integration with Mod-Gearman is also...]]></description>

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										<guid>https://support.nagios.com/kb/article/nagios-xi-uploaded-plugin-returns-bin-bash^m-bad-interpreter-no-such-file-or-directory-474.html</guid>
										<title>Nagios XI - Uploaded plugin returns &quot;/bin/bash^M: bad interpreter: No such file or directory&quot;</title>
										<link>https://support.nagios.com/kb/article/nagios-xi-uploaded-plugin-returns-bin-bash^m-bad-interpreter-no-such-file-or-directory-474.html</link>
										<description><![CDATA[Problem Description After uploading a plugin (check_apc_pdu_load.sh for example), the following error is produced: The following error message is produced: -bash: ./check_apc_pdu_load.sh: /bin/bash^M: bad interpreter: No such file or directory  This...]]></description>

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<item>
										<guid>https://support.nagios.com/kb/article/pages-not-displaying-correctly-142.html</guid>
										<title>Pages Not Displaying Correctly</title>
										<link>https://support.nagios.com/kb/article/pages-not-displaying-correctly-142.html</link>
										<description><![CDATA[Problem Description The Nagios application is not displaying the correct information. This commonly occurs after applying an update to the Nagios program.   Explanation Your web browsers cache has not been refreshed with the latest code since the...]]></description>

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<item>
										<guid>https://support.nagios.com/kb/article/snmp-trap-how-to-send-a-test-trap-493.html</guid>
										<title>SNMP Trap - How To Send A Test Trap</title>
										<link>https://support.nagios.com/kb/article/snmp-trap-how-to-send-a-test-trap-493.html</link>
										<description><![CDATA[Overview This article shows you several methods of sending a trap to your Nagios server to test SNMP Trap functionality. Sometimes when troubleshooting an SNMP Trap issue, it can be very helpful to remove the actual device that could be causing...]]></description>

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<item>
										<guid>https://support.nagios.com/kb/article/web-browser-reports-330-error-content-encoding-567.html</guid>
										<title>Web Browser Reports 330 Error Content Encoding</title>
										<link>https://support.nagios.com/kb/article/web-browser-reports-330-error-content-encoding-567.html</link>
										<description><![CDATA[Problem Description In rare circumstances you may come across the following error in your web browser when accessing one of the Nagios products: Content Encoding ErrorThe page you are trying to view cannot be shown because it uses an invalid or...]]></description>

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