Technology Insights

Possible Errors When Moving Nagios From One Linux Server To Another Linux Server

I recently moved Nagios monitoring from one server to another and ran into a couple minor issues. I wanted to point out some of the errors and the steps I took to resolve those errors on a CentOS Linux server. The biggest pain about moving Nagios for me was the fact that I use Monarch to manage the Nagios configuration files and reconfiguring Monarch was a pain because of some of the Perl modules required and the fact that CentOS still favors Perl 5.8.8 instead of Perl 5.10 which includes some of the necessary Perl modules. Anyway once I got past the Monarch issues I still had some minor problems with Nagios which are pointed out below. The errors are from the Nagios web interface.

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Technology Insights

How To Install Google Analytics JavaScript For KBPublisher Knowledge Base Software

I recently installed Google Analytics JavaScript on a clients KBPublisher installation and figured someone else may find this useful. In the past it has been recommended to put the Google Analytics JavaScript code into the footer of your web site however Google has now released asynchronous tracking code that can be installed in the header safely. Below is information on the Google Analytics asynchronous JavaScript to be placed in the header of the KBPublisher default template. You can apply the same logic though if you have installed a different template for KBPublisher knowledge base software.

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Technology Errors

Perl Module Error: Can’t locate URI/Escape.pm in @INC

In the process of installing Monarch, which is a Nagios file manager, earlier I ran into a couple errors for modules I thought I had already installed. Then I realized the issue must be because during the process of installing modules Perl wanted to upgrade from 5.8 to 5.10 on CentOS. I went ahead and upgraded Perl however I left 5.8.8 intact since CentOS seems to rely on Perl 5.8.8 in many ways. Anyhow the full error I received is below as noted from the Apache error logs. You can easily resolve the below error by following the directions below.

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Technology Errors

Perl CPAN install XML::LibXML::Common, Error: libxml2 not found

I am working on getting Monarch installed on a server to manage Nagios file. Part of the setup includes installing a bunch of items using Perl’s CPAN. One of the packages I needed to install was called “XML::LibXML::Common” but it failed with an error. The error was overcome on CentOS by installing libxml2-devel using yum. Below are details regarding the error, the yum command to resolve the issue, and the end of a successful install of the initial package.

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Technology Insights

Unable To Remove AVG 8.5 From Windows Computer: Error Avg9DetectedDlg

A client computer recently had an issue launching Internet Explorer. Every time that you would click on Internet Explorer or Firefox the browser would attempt to launch and then immediately close. I finally decided to try and update AVG Antivirus and Antispyware but the update failed. At this point I was pretty sure that AVG was the issue so I attempted to uninstall AVG which also failed. Below I describe more information about the AVG uninstallĀ error and how to remove AVG 8.5 from a Windows computer.

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