Are there any GUI tools for configuring and monitoring Apache?
I used this for a while, it doesnt have to many feature but it does it job for managing modules and virtualhosts.
Rapache is a simple tool for remotely managing and configuring an apache2 instance without having to hassle around through configuration files.
There is httpd support in Gadmin.
Packages are in the repos and more information can be found on the website
You could user Webmin that is a webapp for managing servers. This would also have the advantage of easy remote access.
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.
Here is another tool I found. Does not have all the bells and whistles but it is currently being updated. Highly Integrated Localhost WebServer Indicator https://launchpad.net/localhost-indicator
you can use /plesk/whm/directadmin/cpanel they are the most popular gui management tools for web hosting.