What is a Load Average?

The more traffic your websites and applications generate, the higher the load your server will have to carry. Over the course of a given amount of time, your server may have a variation of high, medium, and low load. The average of that load over time is called the load average.
Programs like “top” allow […]

Protect Your Server with Fail2ban

Monitoring your server is a great way to prevent cyber attacks and stop those that might be in progress. Unfortunately, you cannot always be present to monitor your server. Unless you are an android, you likely still require sleep. For those times when you cannot be be present, Fail2ban is an excellent friend to have.

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 […]

How to Manage Users in Webmin

On a dedicated server, managing users does not have to be a difficult affair. While the command-line tools are not overly complicated, you may at times want to use a graphical interface or run batch user operations. Webmin’s “Users and Groups” module may be exactly what you need.
You can find the Users and Groups module […]

How to Schedule Commands in Webmin

Occasionally, you may need to execute a command on your server at an odd time. It can be a nuisance to have to wake up at 4 in the morning to run a software update or some other mundane task. You could setup a cron job, but that is usually for recurring tasks and […]

How to Keep Your Server Time In Sync with NTP

As the expression goes, timing is everything. When it comes to automating tasks, monitoring logs, and performing updates on your server, timing is very important. Your server is just like any other computer in the way it keeps time. By default, it has an internal clock that you can set at the Bios level and […]

Server Logs and What They Do

One of the best ways to monitor Linux and Unix servers is to study their server logs. Every operating system and Linux distribution has their own variants, but there are some general logs that most server OSes have. You should definitely be familiar with them if you plan to manage a dedicated server.
The following are […]

5 More Server Tips (Part 2)

Earlier this week, we highlighted some tips that should help you with your shiny new dedicated server.  Here are 5 more to keep you going over the weekend.
1. Have a plan – It sounds very basic, but I can attest from experience that not having a clear vision can cause you big headaches in […]

Using dmesg for Kernel Information

On a Linux dedicated server, the kernel is the single most important component of the operating system. It controls the OS’s interaction with hardware and handles all primary functions. If something is going wrong with your server at the OS level, the kernel is one place you should investigate.
The command dmesg is a […]

Who is the user Nobody?

If you stare at the list of running processes on your server for long enough, you are bound to come across the user called “nobody”. Before you call a security expert and prepare to fight off a hacker, relax. While the username “nobody” may seem suspicious, it is actually supposed to be there.
On […]