Network security fundamentals

Networking can be a very challenging task for technology teams. Networks can be very sensitive and commonly take the blame for most outages, without people even knowing the true root cause of an issue. This is simply because most of our data traverses over a network, so it's critical that it performs optimally. If it doesn't, it can bring a business to its knees because of how dependent we have become on the network. In addition to the already challenging task of network operations, we are also concerned with network security. Ensuring that the data we transmit is secure, no perpetrators are accessing our network who shouldn't be, preventing traffic that isn't welcome, and ensuring confidential data is isolated are some of the challenges faced in this space.

As we mentioned previously, this shift in security is mainly due to the evolution of device access and cloud technologies that have forced us to change our strategies. Although...