December 2012
Intermediate to advanced
888 pages
48h 24m
English
Content preview from Ubuntu Unleashed 2013 Edition: Covering 12.10 and 13.04, Eighth Edition
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Configuring Your Firewall
Always use a hardware-based or software-based firewall on computers connected to the Internet. Ubuntu has a firewall application installed by default named Uncomplicated Firewall (UFW). This tool enables you to implement selective or restrictive policies regarding access to your computer or LAN.
UFW is run from the terminal, and you must have administrative privileges to use it. Commands are given like this:
matthew@seymour~:$ sudo ufw status
The most useful commands are listed in Table 18.1. For others, the UFW man page. Many are described in greater detail after the table.
Table 18.1. Useful Commands for UFW
By default, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.