Rene Maurer

This plugin show the current versions from WordPress | PHP | Theme | Webserver | MySQL in the Backend Dashboard footer.
<ul>
<li>WordPress version installed</li>
<li>PHP version from your Hoster</li>
<li>Theme and Child Theme</li>
<li>Web Server from your Hoster</li>
<li>MySQL version from your Hoster</li>
</ul>

WP Server & Theme Info

Show the current versions from WordPress | PHP | Theme | Webserver | MySQL in the Backend Dashboard footer.

Francis Smith

View your PHP error log, CPU and RAM usage, and view disk space all in one location. This is a new plugin under development. Currently it does not do terribly much, but we are constantly working on adding new and useful features.
Why use this plugin instead of the many others? ServerMonitor does not use PHP’s shell_exec, which is disabled by many web hosts for security concerns. Currently this plugin only supports Linux servers. Windows Server support is planned, but is a low priority.
For any bug reports or suggestions, let me know in the plugins support forum.

ServerMonitor

A simple plugin to view server resource usage (ram, cpu, disk), check your PHP error log, and more.

WP Server & Theme Info vs ServerMonitor