Category: What is?

What is … a MAC-address? 0

What is … a MAC-address?

A MAC address is a known term but a tester is not much confronted with it.  MAC stands for Media Access Control and is also known as the physical address.  In fact, it is...

What is … a (reverse) proxy? 0

What is … a (reverse) proxy?

This second post in the “What is … ” series looks into a (reverse) proxy.  The first thing to distinguish is that there are two types of proxies namely a forward proxy (or simply called...

What is … a firewall? 0

What is … a firewall?

A firewall can be either a piece of software (Cisco IOS, IPCop, IPFire, Windows Firewall, etc.) or a hardware component.  The goal of a firewall is to allow or disallow in- and outgoing network...