An Introduction to Web Servers: Part 2

A web server will typically run as a daemon (system service) under a single application process. That initial process will then spawn child processes that handle virtual servers, individual websites, or even individual requests. As such, a web server could spawn hundreds or even thousands of processes per day, per hour, or even […]

Understanding Systemd and How to Use It: Part 1

Systemd has gradually made a name for itself in the Linux world and is or will eventually be the default service management system for a number of major Linux distributions. Those accustomed to the old init systems will not find Systemd to be horribly complex, but it does feature some significantly different approaches to service […]

Linux/Unix Terms You Should Know: Part 3

Part of the learning curve of a new Linux server is learning all of the terminology. You might not be familiar with some of them even if you have experiencing working on other operating systems. In part 3, we will look at some more of these terms.
daemon – This is a program that is often […]

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 […]

Linux Terminology You Should Know

Continuing our series on server-related terminology, Linux terminology seems to be a sensible choice. Many of the world’s servers run Linux, especially in the web hosting industry, and a great deal of the terminology common to Linux may be unfamiliar to users who use Windows. The following terms are ones you should know.
Kernel – This […]

3 Ways to Configure Services to Start at Boot in CentOS: Part 1

On Linux dedicated servers, you can configure services or daemons to start at boot. This means that the programs will start running as soon as your server starts and, ideally, continue to do so as long as the server remains operational. We will look at three distinct ways to configure boot-time services: from the command […]

Starting, Stopping, and Reloading Services

Linux-based dedicated servers typically run two primary types of programs: those which require user interaction and those which perform tasks in the background without user intervention. Those programs that run in the background are commonly called “services” or “daemons”.
Servers usually require numerous services to run the background, such as the web server, mail server, database […]

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 […]

How to Change the Timing of Cron.daily

Cron is a Linux daemon that runs specified programs at precise times throughout the day, week, month, or even year. You can setup a cron job to automate any tasks on your server. Cron.daily is a directory on some Linux servers that runs all scripts or links to scripts within it at the same time […]

Dedicated Server Terminology Part 2

The following is a continuation of yesterday’s server terminology. These should help you become more familiar with your dedicated server and will also serve as a quick reference guide in the future.
6. Operating system – An operating system is the primary software on a server that interacts with the hardware, network, and […]