Changes

In [[Ubuntu 11.04 Firewall Basics]] we looked at ports and services on an Ubuntu 11.04 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.