Photo by Benjamin Gustafsson
A kernel is the lowest level of easily replaceable software that interfaces with the hardware in your computer. It is responsible for interfacing all of your applications that are running in “user mode” down to the physical hardware, and allowing processes, known as servers, to get information from each other using inter-process communication (IPC).
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Mounting a USB device inside a virtual machine is often a tool that you cannot go without. If you are using Virtualbox in Ubuntu however, you need to take a few extra steps to make it work.
Adventurous computer users are probably using either the beta or dev channels of Google Chrome. When these unstable versions crash and your profile is corrupted, how can you recover it?
You might not be ready to accept Linux as your desktop yet, but you can still use it to save your Windows PC—whether you need to reset passwords, recover deleted files, or scan for viruses, here’s how to do it.
Ready to jump on the latest Ubuntu, but don’t want to mess up your current Ubuntu installation? Here’s how you can painlessly upgrade to Ubuntu 10.10, or any later normal release of Ubuntu, directly from the Update Manager.
VPN-ing into your server will allow you to connect to every possible service running on it, as if you were sitting next to it on the same network, without individually forwarding every port combination for every service you would like to access remotely.
Sometimes you need to use a VPN connection to grant access to remote network resources and for that you use a VPN, but if you don’t want all of your client traffic to go through the VPN link, you’ll need to setup your VPN to connect in a “split tunnel” mode. Here’s how to do it on Ubuntu.
Ready to breathe new life into your netbook? Ubuntu Netbook Edition 10.10 includes an innovative new look and feel and support for most netbooks without any extra configuration. Let’s take a look at the newest features.
Ubuntu 10.10 is the first version of Ubuntu to come with the Ubuntu font family, and it uses it for many user interface elements by default.
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Say you want to download a torrent on your home computer, but you’re away from home. Sure, you could just take a laptop and download it on that, but that’s hardly ideal most of the time. So how do you accomplish this?
Have an iPhone or Android phone and a music collection too large to sync to it? Want to share your library with friends? Here’s how to sync your library with your smartphone over the internet, or stream it in any browser.
While most geeks love keyboard shortcuts, it’s also useful to make the most out of your mouse as well. Here are a few tips for making the most of your GNOME experience by combining the keyboard and the mouse for additional features you might not have known about.
If you’ve added a PPA and run into a nasty bug in your updated software, you should revert back to the Ubuntu repositories. Doing it safely can be tricky – fortunately Ubuntu Tweak can do this for us.
It doesn’t matter if you are using Windows, OS X, or Linux, everyone should do regular backups of their information. In Linux one of the easiest ways to do automated backups is with Simple Backup (SBackup). Here is how you can set up SBackup to make sure you have a backup of all your important files.
Ubuntu gets its stability from heavily testing new versions of software. However, if you want to risk some instability and try out the latest versions of your favourite programs, we’ll show you how!
Connecting to file servers is something most people do on a daily basis even without thinking about it. In Linux, it may not be intuitive how to quickly connect to a samba or ftp server without a separate program. Here are a few different ways to connect to a remote file server without needing to touch a terminal.
If you’re anything like me, you probably have Ubuntu running on your older computers, and they often have smaller hard drives so you’re looking to save every bit of drive space you can. Here’s an easy trick to free up a surprising amount of drive space.
If you are looking to upgrade the memory in your Linux PC, you are probably wondering how many open slots you have, what type of memory is already installed, and what you need to buy for an upgrade… without having to open your computer.
Virtually all linux distributions include sendmail as the default MTA. Which is okay – it has been around for a long time, is stable and it works great (although the postfix afficionados might disagree!). But it has nothing built in for spam control which is good; it was not designed for that. So you’ve installed spamassassin and it works good but you still are getting unflagged spam emails through. Perhaps you need to try greylisting.
If you are tired of trying to keep up with Apple’s new iPod releases, upgrade your old iPod for free with Rockbox. Rockbox allows you to upgrade your aging iPod with new themes, fonts, games, and more.
When you’re running production servers, the one thing you don’t want to do is upgrade the kernel every time a new update comes out. Why? Because that’s the only Linux update operation that requires a reboot once it’s done—and in a production environment you often can’t have downtime.
If you’ve worked in the admin world for any length of time, you’ve probably run into an instance where you needed to change the hostnames on your server to match some corporate naming standard, but you can’t have downtime either. So how do you change the hostname without rebooting?