Internet, Network Security, Firewalls, and VPNs
In the previous chapter, we explored the network basics, file sharing, and SSH. It is time for us to switch to one of the most significant features of Linux – security. After all, Linux is famous for being a notoriously hard system to hack, but hard doesn’t mean impenetrable. Even the most secure fortress can be overtaken if certain weak spots are left unsecured.
We will continue looking at the internet and how it works by exploring networking models, packets, protocols, and ports. We will then dive into network security by exploring possible attacks and several recommendations that will keep you safe. Further, we will explore firewall types and then review one of the most famous of them in detail. The end of the chapter is dedicated to Virtual Private Networks (VPNs), the best way to stay anonymous on the internet, which raises your security to a cosmic level.
The sections in this chapter are as follows:
- How...
