This is one of the most common types of penetration tests,
and involves finding target systemson the network,
searching for openings in their base operating systems and available network services,
and then exploiting them remotely.
Some of these nelwork service penetration tests take place remotely across the Internet, targeting the organrzation’s perimeter networks.
Others are launched locally, from the target’s own business facilities, to assess the security of their internal network or the DMZ from within,
seeing what kinds of vulnerabilities an internal user could learn.