Originally Posted by falko
apxs2 is in the apache2-devel package. You must install the apache2-devel package.
apt-get search apache2
You will then find the exact name of the Apache2 devel package. To install it, run
apt-get install <package_name>
I have already installed the Apache2-devel packeage, but the only apxs that I could find was the one for the ISPConfig Apache located in: