Archive for December, 2012


Is the End of the Year a Good Time for Major Changes?

As we approach the new year, it might be tempting to make sweeping changes to your organization and to your dedicated server. This is a normal feeling. After all, even in our daily lives, we often start the new year with resolutions (ones that are often too high-reaching and hard to keep). The question posed […]

How to Remove Old Downloaded Packages from APT

One of the routine end-of-year tasks you might want to perform is the removal of old packages that your system downloaded but may no longer need. You may have installed applications and later uninstalled them, but your package manager sometimes keeps those downloaded packages in case you need them later. Fortunately, with APT, it is […]

Linux Server Security Guide: Part 5

Malware and Spam
Of all the security problems a server might have, malware and spam are particularly despicable. Few things are worse than finding out you have a virus or other malware infecting your system.
Linux servers do not have to worry about nearly as many viruses as Windows servers do. Nevertheless, you should still […]

Linux Server Security Guide: Part 3

Network Security
When it comes to network security, your firewall is one of your most important tools. It is generally a good idea to have multiple lines of defense, such as a router-level firewall and also a server-level firewall that is software-based. Usually, you can block most ports with your firewall, and only allow […]

Linux Server Security Guide: Part 2

System Logs
Every Linux operating system keeps logs for system processes and applications. You can use those logs to monitor server performance and also sniff out any abnormalities that may be security security related.
There are some common Linux logs that are more important than others, such as the kernel log, authentication log, web server […]

Linux Server Security Guide: Part 1

Over the years at Dedicated Server School, we have provided you with numerous security tips, often on an individual and specific level. This five-part series will instead give a general overview of Linux server security to serve as a quick reference tool whenever you might need it. Rather than searching for the security topic you […]

Run an End-of-Year Security Audit

As the end of the year approaches, now is a good time to make sure your server is living up to your security standards. It might be easy to neglect if you do not have any noticeable security problems, but the only way to truly know how your server is fairing is to run a […]

Build an Open Source Private or Hybrid Cloud with Eucalyptus

Building your own private or hybrid cloud sounds rather difficult, but with the right solution, you can create a stable AWS-compatible cloud and have user-friendly tools to manage it. Eucalyptus is one such solution. It is a free and open source cloud platform that follows industry standards to deliver an AWS-compatible cloud solution.
Eucalyptus works by […]

Should Your Server Run Automatic Updates?

Possibly all operating systems offer an automatic update feature. Linux distributions commonly used for servers definitely do, and this feature may even be enabled by default on some. Should you run automatic server updates? The following are some possible benefits and a few possible disadvantages.
Benefits:

Your server will be updated as soon as updates are available
It […]

Server 2012 End of Year Checklist

Another year has come and gone, and it is the perfect time for you to tighten up the screws on your server and make sure everything is in working order. The following checklist should help you along the way.

Run those updates – If you have been putting off updates, now is as good of a […]

The Big Truth about Big Data: Part 3

In part one, we defined big data, and in part two, we talked a little about why companies might need big data and how an open source solution might be the best way to go. In this part, we will take a look at one open source solution that is making headlines. It is called […]

What X Server Is and Why You Do NOT Need It

Spend enough time using Linux and you are bound to hear terms like “X Server”, “Xorg”, “X Windows”, or “X11”. All of these terms refer to the same technology, and none of them are things you need for your Linux-based dedicated server.
On Linux and Unix-like operating systems, the X Server is a layer that […]

The Big Truth about Big Data: Part 2

In part one, we defined big data, but the name big data really only tells you what the problem is. It does not address the solution. You have this massive amount of unstructured data, and you have no way of organizing it. What should you do? This is where big data solutions come […]

The Big Truth about Big Data: Part 1

The business world is abuzz with talk of “big data”, but many people probably still do not have a firm grasp on what it means and how it will impact the IT world. If you manage servers for a living, there is a good chance that you will soon encounter an employer or client who […]

What You Should Know About Linux Server File Systems

There are few ways to get a flame war going faster than to ask a Linux user which file system is the best? While many will argue in favor of one of the iterations of Ext: Ext2, Ext3, or Ext4, others will get more creative, promoting file systems such as ReiserFS, XFS, ZFS, […]