Have you ever used a tail -f on a logfile, only to find that it’s scrolling by way too fast for you to deal with? If you know exactly what you’re looking for, you can always grep the contents, but often you aren’t sure what you need to see. In this case, it’s useful to reverse grep instead.
Changing the group a user is associated to is a fairly easy task, but not everybody knows the commands, especially to add a user to a secondary group. We’ll walk through all the scenarios for you.
If you have ever found yourself in need of a terminal available at all times in Linux, here are four different ways you can bring up a terminal with a maximum of three buttons.
This page will explain how to renew your DHCP address when using Linux.
When you get a dedicated virtual server to run your website, chances are good that it’s configured for everybody, and not customized to maximize performance for running a website.
If you want to move all files of a particular file type into a single directory, you can use the find command to do this easily in Linux.
If you can’t stand the automatic hyperlinking in Microsoft Word, you might be hard-pressed to find the right place to disable it in Office 2007, since all the settings are hidden so well compared to previous versions.
If you are getting the following error while trying to change the default fat32 partition on a new drive to another linux partition type, I might have the answer for you.
If you get this error in your logs when trying to setup public key authenticated automatic logins, the problem is a permissions one.
If you’ve ever needed to change the hostname for Red Hat Linux, CentOS or similar operating systems, you can do so easily with one simple command.
If you want to setup SSH keys to allow logging in without a password, you can do so with a single command.
This article will cover how to use the port-forwarding feature in SSH to accomplish tunneling from one machine to another.
If you’ve moved an Ubuntu virtual machine or modified it and then suddenly had a problem getting networking to work, you might want to read through this page, because I’ve figured out a workaround to get it working again.
If you’ve used the GUI tool to share a folder with your Ubuntu guest machine, you probably are confused why it’s not showing up anywhere.
This page will explain how you can use ISO image files in Linux.
This page will show us how to create a list of files and folders ordered by size using standard Linux commands.
This guide will attempt to explain how to use iptables on linux in easy to understand language.
Have you ever needed to quickly share a folder with another machine? Rather than deal with samba, nfs, or apache, you can just run a simple command instead.
If you are getting this error then you probably reset the permissions on your hidden .ssh directory in your user folder, and your keys aren’t going to work anymore. It’s very important that these files not be writable by just anybody with a login to the box, so openssh will give you an error if you try to use them.
If you want to “map a drive” from a Linux computer to a shared folder on a Windows computer or a shared folder on a Linux computer running Samba, there’s a simple way that you can do this from the command line.
If you use the rsync utility to keep your backups synchronized from your database server over to your backup or secondary file server, you might want to prevent the script from using too much bandwidth. Here’s how.
Like anything else on Linux, it’s easiest to do things from the command line, and when we’re dealing with servers that’s probably the only thing we easily have access to. Luckily it’s trivial to mount an ISO image in Linux.
We love Live CDs, but it’s a hassle installing the same packages every time you need to do a virus scan or recover accidentally deleted data. We’ll show you how to roll your own Ubuntu Live CD, with all the packages you want, and even more nice customizations.
Are you bored with the default brown, orange, and purple of Ubuntu? Here’s how you can give your Ubuntu desktop a quick refresh with a new Bisigi theme.
Your old CDs – especially ones you’ve burned yourself – degrade over time, to the point that they’re unreadable. We’ll show you how to squeeze as much data out of them as you can, before it’s too late!