Integrating Nagios XI alerts to a Slack Channel

Recently, I have been exploring the use of Slack for messaging and collaboration and in particular integration with other tools. In this post I will discuss enabling integration with Nagios XI and providing the functionality to send alerts generated to a channel within Slack. Firstly, you need to have created a login and be an … More Integrating Nagios XI alerts to a Slack Channel

Forcing SSL with permanent redirect for Nagios XI

The scope of this article is to describe the steps required to configure SSL for Nagios XI and to force SSL with a permanent redirection. In this example, I have made the assumption that certificate files have been generated and in this example I will be using the hostname ‘nagios.dean.local’ for my Nagios XI server … More Forcing SSL with permanent redirect for Nagios XI

Nagios XI: Automating Host Management

I was recently looking at how to automate adding and removing managed hosts and services in Nagios XI, which can be particularly useful in cloud computing and large environments where¬†configuration management solutions have been implemented for provisioning. In these environments we typically use configuration files based on the attributes of a server role¬†during the provisioning … More Nagios XI: Automating Host Management

Nagios: Starting NSClient++ service fails with the error ‘NSClient++ (x64) is not a valid Win32 application.’

I was recently investigating an issue where the Nagios monitoring agent (NSClient++) service failed to start with the following error message: The NSClient++ (x64) service failed to start due to the following error: NSClient++ (x64) is not a valid Win32 application. In the first instance I attempted to resolve the issue by uninstalling and installing … More Nagios: Starting NSClient++ service fails with the error ‘NSClient++ (x64) is not a valid Win32 application.’

Nagios XI: Host and Service details not being displayed

Recently, I was troubleshooting an issue with Nagios XI where host and service details where not being displayed from the web management console. On investigating the log file at ‘/var/log/messages’ there was a number of errors identifying that a table in the MySQL database was crashed and was required to be repaired. ndo2db: mysql_error: ‘Table … More Nagios XI: Host and Service details not being displayed