CIA Triad/Rating

This is a very important IT Security principal. Considering these 3 factors we can help guide the design of a system.

1. Confidentiality: How important is it that only people who are suppose to access the data and no one else? If the information is very sensitive then…

N-Tier Architecture

A type of client-server architecture. The most common use of multi-tier architecture is the three-tier-architecture. The three tiers of the three-tier-architecture are summarised below:

1. Presentation/Web Tier: Usually the servers that provide the UI to the end users…

RTO vs RPO

Recovery Point Objective (RPO) and Recovery Time Objective (RTO) are important elements which guide major decisions when designing the architecture for a system but whats the difference between the two? Let’s take a look.

What is virtualisation?

When we traditionally talk about a server we’re talking about a physical computer having a operating system with one or more application/s.

Virtualization allows us to separate the hardware (the actual physical computer) from the operating system and…