Are there any good or possibly better alternatives for webmin; Basically I want to have one single application to monitor the entire Ubuntu system/network etc.
Webmin is a web-based interface for system administration for Unix. Using any modern web > browser, you can setup user accounts, Apache, DNS, file sharing and much more. Webmin removes the need to manually edit Unix configuration files like /etc/passwd, and lets you manage a system from the console or remotely. See the standard modules page for a list of all the functions built into Webmin, or check out the screenshots.