The SI unit for radioactivity, the becquerel (Bq), is named after him. Roentgen discovered X-rays on November 8, 1895. The press reported this on January 5, 1896, shortly before Becquerel did his famous experiment. Thus radioactivity was discovered the following year but within a year of the discovery of X-rays.
Book Details. Book Description. A penetration test, also known as pentest, is a method of assessing computer and network security by replicating an attack on a computer system or network from the outside world and internal threats. With the increase of advanced hackers and threats to our virtual world, pentesting is an absolute necessity.
Penetration testing requirements often force penetration testers to do both external as well as internal assessments. This article covers the concepts that are required to setup a pentest lab in VirtualBox, which looks like a real network for a small-scale organization. This can be used as a base for setting up more advanced labs to practice penetration testing concepts in a legal environment.