Hello everyone
I have been trying to install the radius module all week but I have not been lucky, the installation of my virtual machine is new, when renewing the server I had to format and deal with a new installation, previously I followed these instructions and I did not have problems but On this occasion I have not been able to install, since the first command tells me that the package build-essential is lost and will not allow me to continue.
any ideas ? Thanks for any help.