Archive for January, 2013


Is Linux the Best for Web Servers?

Linux is a free and open source kernel that powers numerous operating systems (often called “distributions”). Many system administrators have long regarded Linux as the best option for powering web-facing dedicated servers and virtual private servers. There are, however, many other options. So, what makes Linux the best, or is it even truly the best […]

The Disadvantages of Old Proprietary UNIX

At one time, most of the world’s dedicated servers used a form of UNIX. Big mainframes were known to have big expensive UNIX installations with hefty, costly licenses. Many of those servers have gradually been phased out or have been switched to more modern operating systems like Linux or BSD. Still, some persist, and those […]

How to Extract Specific Files from a Tarball

One of the most common methods of archiving files on a Linux or Unix server is called tar. Tar can store any number of files in individual archives and can be used in conjunction with compression programs like gzip and bzip2. Normally, when you want to extract files from a tarball, you simply run the […]

View Real-Time MySQL Loads with Innotop

MySQL is one of the most widely used database management systems. It is free and open source and works very well with dedicated servers designed to power websites. On Linux servers, a program called “top” allows you to see real-time load averages and usage for all running programs. If, however, you just want to see […]

How to Prevent Outgoing Spam on Your Server

Often when we think of spam, it usually relates to incoming spam inundating mail servers and bogging down systems. Another way spam can harm your dedicated server is from the inside.
Many spammers do not setup their own servers or paid hosting accounts to send spam. They want to be anonymous. Therefore, they often use other […]

How to String Multiple Linux Commands Together

On a Linux dedicated server, the shell provides a powerful arsenal of commands for you to manage your system. Used in isolation, these commands can be very effective. Used in combination, you can truly unlock the power of your system.
There are a few ways to string commands together. One of the most basic tools you […]

How to Securely Download a File from Your Server

Downloading a file from your server should not be tricky. If it is a web-facing file, you can usually download it with your web browser. If it is not, you could use FTP. The problem with both of these options, FTP and HTTP, is that neither is truly secure. If you need to download a […]

How to Simply Display Directory Disk Usage?

On a Unix or Linux server, the “du” command provides a quick and easy method for finding out how much space each directory is using, as well as a summary of total disk usage. For example, if you just typed “du” from the command line, the output might look like this:
624 […]