Although the main focus of the web interface is its functionality and not its look, there is a possibility to change the way how it presents. The Nagios source code comes with two themes—exfoliation and classical. So far, all of the screenshots in this chapter have been prepared using the exfoliation theme, which is the default theme for Nagios since version 3.3.1.
The classical theme was the default for all Nagios versions up to version 3.2.3. To install the classical theme, we need to run the following command from the Nagios source code directory:
This will install the classical theme and overwrite the theme currently installed for the Nagios web interface. After the command ...