Is there a tool for web based system administration?

eBox (now zentyal)

sudo apt-get install zentyal

https://help.ubuntu.com/10.04/serverguide/C/ebox.html

https://help.ubuntu.com/community/eBox

Note that Webmin is not supported as it's not compatible with Ubuntu package management:

https://help.ubuntu.com/community/WebMin


Ajenti is easy to install, easy to use and has powerful tools.


You can limit what they can access with Webmin. For others looking at this question, check out webmin.

http://www.webmin.com/

Search for "webmin ubuntu" for instructions on installing because it is not a simple apt-get.