16. Using gufw and ufw to Configure an Ubuntu Firewall
In the previous chapter we looked at ports and services on an Ubuntu system. We also briefly looked at iptables firewall rules on Ubuntu including the creation of a few very simple rules from the command line. In this chapter we will look at a more user friendly approach to iptables configuration using two tools named gufw and ufw. As we will see, gufw and ufw provide a high level of control over both inbound and outbound network traffic and connections without the need to understand the lower level iptables syntax.
16.1 An Overview of gufw and ufw
Included with Ubuntu is a package called ufw which is an acronym for Uncomplicated Firewall. This package provides a command line interface ...