Simple one-file PHP script which shows Uptime, Disk space, CPU Temp and list of Processes on the server. Supports FreeBSD and Linux now.
Access can be protected with htpasswd. Just need to uncomment all strings in htaccess file and set correct path for AuthUserFile directive.
By default htpasswd contains following credentials user: admin, pass: admin
https://github.com/ematsakov/server-status