Telnet remains a useful, albeit insecure, way to troubleshoot Linux-powered servers.

There are many options for online collaboration, but WebDAV remains a useful and straightforward way to share files. Software support at both the server and client ends sweetens the deal further.

The latest version of the popular open source server OS was designed with enterprises in mind. With a strong focus on scalability and flexibility, as well as support for physical and virtual servers and cloud computing, there's something for every organization to get excited about.

Need both mailing list and forum software but don't want to chose one over the other? Consider this open source server hybrid.

Apache Tomcat is open source software that implements Java Servlet and JavaServer Pages, enabling sites to run Java servlets and Java-based dynamic content. Version 7.0.2 is in a mature beta, but is it data center ready?

Enhance Screen on your screen with Byobu, open source software that makes Screen more user friendly and functional.

SSH's escape character may be one of its best kept secrets. Using '~' can suspend a session as well as a host of other escape sequences. Learn how to get the most out of these open source software shortcuts.

Mutt and PuTTY are a great open source combo for managing mail, but they're not without their failings. Here's a quick tip for using PuTTY to fix problems with line-drawn characters in Mutt.

FreeBSD may not be as popular or as well known as other operating systems, but that doesn't mean it's not reliable or robust enough for most enterprise tasks. See how it fares when taken out for a spin.

The Windows SSH client, PuTTY, is incredibly useful and becomes even more so when set up with a private/public keypair.

Gnome-do is an open source software solution to getting things done. The Gnome application launcher enables users to specify particular actions to take on whatever file or application they wish.

When disks fill up, strange errors occur. Determine if and where you have a disk space shortage, and learn how to resolve it.

When using Bash, the decision to use single quotes or double quotes depends on exactly what you want to do. Find out what each does and when to use them.

The ncurses-based file manager Ranger is a console tool worth checking out and taking the time to learn.

Get even more out of the open source software editor, Vim, by taking advantage of its scripting capabilities.

Untangling the many tentacles of this popular proxy server is well worth the effort.

Command-line users are often well-acquainted with Less, More's backward-scrollable cousin. Here are a few not-so-well-known useful commands and shortcuts that may make Less even more valuable to you.

Google tools are useful. If you're an Ubuntu or Debian user, you can now get even more out of them with GoogleCL.

Most admins know WebDAV, but davfs2 isn't as well known. With this open source software tool, you can connect to WebDAV server as a regular filesystem, thus allowing applications that don't support WebDAV to access shared resources via WebDAV.

Life may not come with an undo button, but fortunately open source software does. With the open source software, Git, it's all too easy to unintentionally commit a file. Fortunately, it's also easy to turn back time.

With Sudo, a sys admin can allow certain users to run commands as root or another user while providing an audit trail of the commands and their arguments. Unfortunately, increased privileges usually apply only to the first command typed. Here's how to extend them to any input or output redirection.

Commandlinefu is a simple repository for storing and sharing shell commands with the rest of the world. Here are three new command-line one liners that stand out.

Tip of the Trade: Type 'history' at the Bash command prompt, and you'll get a list of your previous commands. Sure, you can scroll up and down to find the ones you're looking for, but did you know there are faster ways to find what you need as well as handy shortcuts to making use of them.

Tip of the Trade: There are three major ways of invoking bash, all of which behave differently when reading in settings files. The one to pick depends on the scope and implementation of the settings being changed.

Tip of the Trade: If you find yourself using the same commands over and over between Vim session, it's time to consider permanently saving your macros.