Is there a list of plugins and what they do anywhere (only the standard plugins that come in the plugin package)?
nagiosexchange.org/Check_Plugins.21.0.html has more plugins also. But a list? I don’t think so.
To find out what any plugin does, all of them are supposed to support ./check_whatever --help
Which should explain what the plugin does.
That is a nice site, everything all in one spot. Are there more sites like that?
Not that I am aware of.