Language Selection

English French German Italian Portuguese Spanish

Tips on keeping your Ubuntu Linux server secure

Filed under
Ubuntu

As a system administrator, one of your chief tasks is dealing with server security. If your server is connected to the Internet, for security purposes, it's in a war zone. If it's only an internal server, you still need to deal with (accidentally) malicious users, disgruntled employees and the guy in accounting who really wants to read the boss's secretary's e-mail.

In general, Ubuntu Server is a very secure platform. The Ubuntu Security Team, the team that produces all official security updates, has one of the best turnaround times in the industry. Ubuntu ships with a no open ports policy, meaning that after you install the machine - be it an Ubuntu desktop or a server - no applications will be accepting connections from the Internet by default. Like Ubuntu desktops, Ubuntu Server uses the sudo mechanism for system administration, eschewing the root account. And finally, security updates are guaranteed for at least 18 months after each release (five years for some releases, like Dapper), and are free.

In this section, we want to take a look at filesystem security, system resource limits, dealing with logs and finally some network security. But Linux security is a difficult and expansive topic; remember that we're giving you a crash course here, and leaving a lot of things out - to be a good administrator, you'll want to learn more.

Full Story.

More in Tux Machines

An open source, e-commerce friendly CMS

Developers Peter Ivanov, Alex Raikov, and I came up with the idea for Microweber about five years ago, when we were all having problems building sites with the existing solutions. Microweber aims to take the complexity out of building a website, online shop, or blog, through a combination of drag-and-drop UI and real-time, WYSIWYG site edits. From the beginning, it's been an open source project. The earliest versions were licensed under GPL, but we switched to Apache License version 2.0 to allow the developers to protect their work and have commercial merits. Read more

Change a Ton of Unity Features in Ubuntu 15.04 with Unsettings

Unsettings is a graphical configuration program that can be used to change a large number of Unity settings. A new update has been released and now Ubuntu 15.04 is also supported. Read more

What is open source? Licensing, history, and more

Another example of open source: You wouldn’t buy a car with the hood welded shut, so why do we buy proprietary software? If you can’t see what’s going on and see what’s happening under the hood then you’re stuck with the car exactly the way it is and that might not be so great. While some people are fine with that, computer geeks shouldn’t be. We should want to get in there and tinker with it. Read more

Weekend in Techrights

Threats to FOSS Patents Links