nagios-plugins is a general collection of Nagios plugins that I have written or expended heavily on.
Within each directory there should a README that will give you an overview of each of the plugins.
Please submit issues and send your feedback and suggestions as often as you have them. Also feel free to fork the project, create a feature branch, and send me a pull request and I will review it.
Phagios is licensed under the GNU GENERAL PUBLIC LICENSE - see the LICENSE.md file for details.