Many IT professionals and engineers want to learn security because it's such a hot field right now. There are many free tools out there, one of the most famous is Metasploit. An obvious route to teach ...

A simple script to fix the error "W: http://downloads.metasploit.com/data...cid/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the ...