Linux is a Unix-like and POSIX-compliant computer operating system assembled under the model of free and open source software development and distribution. The defining component of Linux is the Linux kernel, an operating system kernel first released on 5 October 1991 by Linus Torvalds.
APT2 is an Automated Penetration Testing Toolkit. This tool will perform an NMap scan, or import the results of a scan from Nexpose, Nessus, or NMap.