Archive for September, 2012


Connecting to Your Server from Android Devices

Today’s IT workers are often on the go and still need access to their servers. Fortunately, those with Android devices have several options for remote connectivity. Whether you need to transfer files or access your shell remotely, there is an app for that.
The following apps are not the only options for Android, but they serve […]

Quick-Deploying Cloud VPS Systems

Sometimes you need a dedicated server but do not need the full hardware package. A VPS is great for small server projects that do not require the full power and memory available on the system. Moreover, many cloud companies offer VPS systems that are quick and easily to deploy, charging monthly or even hourly fees […]

3 Ways Virtualization Can Help You Save

Saving money is very important in the competitive dedicated server industry, and a good system administrator will always look for ways to help the business save. Virtualization, when used correctly, is a great way to save money and still get good performance out of a server. The following are three ways to save with virtualization.
1. […]

Tips for Choosing a Colocation Facility

Whether you are just getting started with server management or are just looking to outsource your servers, choosing a colocation provider may seem like a confusing and time-consuming activity. The following tips may help you choose a good colocation provider.
1. Security first – Features aside, you need your servers to be physically secure and secure […]

How to Load and Unload Kernel Modules

The Linux kernel is the foundation for a multitude of mobile, desktop, and server operating systems, from Android to Red Hat Enterprise Linux. Hardware drivers and other key components can either be built directly into the kernel and reside as modules that you can plug in or remove whenever necessary. What follows is a brief […]

How to Clone a Hard Disk on Your Server

Under normal operations, it would probably be unnecessary to clone your dedicated server’s hard drive. There are, however, instances when it makes sense. Your hard drive may show signs of failure, and a pre-emptive cloning to a new drive could save your data and avoid the prolonged downtime that would come with restoring backups. The […]

How to Install and Remove Packages in FreeBSD

If you have used Linux servers, you are probably very familiar with the package management systems, such as YUM or APT. Unless you used Gentoo, however, you may find the package management system in FreeBSD to be noticeably different. What follows is a quick start guide to FreeBSD’s package management system called Ports Collection and […]

A Basic Guide to SSH Server Connections: Part 2

Connecting to an SSH server is usually pretty straightforward, and your login credentials are encrypted for security. This makes SSH useful for other types of connections beyond basic shell access. Backup/syncing tools like rsync can use it, and file transfer programs like SCP for SFTP can use SSH technology for secure file transfers.
In part one, […]

A Basic Guide to SSH Server Connections: Part 1

Many system administrators have taken a liking to web-based control panels to manage their dedicated servers. While a control panel certainly has its benefits in some situations, there are still some areas of server management where there is no substitute for having shell access. SSH allows you to remotely connect to your server’s shell, providing […]

How to Troubleshoot Using Dmesg

Linux logs can reveal important information about your server. For system boot messages, the dmesg command provides quick and easy access to critical kernel information. When all is going well, you might not spend much time with dmesg, but when something goes wrong, it is an invaluable troubleshooting tool.
If you need to see boot information […]

Using Webmin to Manage Filesystems

Mounting and managing file systems is something normally reserved for the command line on Linux and Unix servers, but Webmin is a comprehensive system administration panel that includes support for file system management. With it you can mount devices, configure them to your liking, name partitions, and perform a number of other file system related […]

Linux Server Management Software

There was a time when pride dictated that a system administrator manage a Linux server with nothing more than a text-only terminal window and a cup of coffee. Times have changed, especially since even major enterprises need to manage their Linux servers quickly and effectively. The following are four useful server management options with varying […]

3 ls* Commands You Should Know

If you have even a small amount of Linux experience, you have probably used the “ls” command to list the contents of a directory. What you may not know is that there are numerous other ls-based commands that are extremely useful for server management. The following are 3 you should know:
1. lsblk – lists block […]

How to Run Commands as Another User

In a previous post, we explained how to use “su” to execute a command as another user, but that is only one of the many ways you can accomplish this on a Linux or Unix server. The following techniques each have their own advantages and can help you run programs under different user identifications.

runuser – […]