Overview In larger enterprises, a "standard build" of CentOS or RHEL is required based on internal policies. These often differ from a clean minimal install of the OS as per our requirements. Depending on the policies implemented in the build process... Read More

Problem Description Nagios Fusion is connected to a Nagios XI server and that XI server has multi-tenancy implemented. Users that are logged into Fusion can see hosts and services that they cannot normally see when logged onto XI.   Explanation... Read More

Problem Description You do not know the password for the nagiosadmin account and need to reset it.   Resetting The Password Open an SSH or direct console session to your Nagios Fusion host and execute the following command: /usr/local/nagiosfusion... Read More

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... Read More

Overview This KB article explains how you can enable debug logging with the PHPMailer to troubleshoot SMTP mail sending problems. The PHPMailer is used in Nagios Fusion and Nagios XI for sending emails using SMTP. If your system is configured for... Read More

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... Read More