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More articles by Eric Geier

Setting Up VNC on Ubuntu in Amazon EC2

While Amazon Elastic Compute Cloud offers only SSH access by default to Linux cloud servers, if you aren't a command-line fan or your application requires a GUI, discover how you can set up remote desktop access to most Linux cloud servers.

13 Free Network and DNS Tools

These 13  free network and DNS tools will go a long way toward helping you administer, troubleshoot, manage and secure your network.

4 Mobile Management Solutions to Keep Your Enterprise Secure and in Sync

As mobile devices in the enterprise grow by leaps and bounds, enterprises' ability to remotely manage them, including enforcing security policies and keeping data in sync, becomes ever more important. Here are four solutions to help resolve this growing data center dilemma.

The 9 Best Low-Cost RADIUS Servers

Looking for a RADIUS server? No need to spend a fortune. Here are nine inexpensive options to consider.

File Sharing Made Easy With Media Servers and NAS

Centralized file sharing and storage is a snap with these five open source NAS and media servers.

7 Open and Free Network Servers

Free, open source router and firewall solutions abound. Many also offer other LAN services, such as a VPN server, hotspot gateway and captive portal. These seven router projects are suitable for SMBs and enterprises alike.

10 Server and Admin BlackBerry Apps

These 10 BlackBerry smartphones apps make monitoring, connecting, transferring and managing your servers a snap.

12 Awesome Server Admin Apps for Windows Phone 7

Managing your data center from your smart phone is no longer fantasy. Server admins will find a wide selection of Windows Phone 7 apps to monitor, manage and administer as well as perform a variety of server-related tasks.

10 Server and Admin Apps for Your iPhone or iPad

Find out the 10 best iOS-powered apps for server monitoring, transferring files and administering your data center from your iPhone, iPod Touch or iPad.

11 Server Apps for Android OS Devices

Need remote monitoring and management for servers in you data center? Android's got (many) an app for that.

5 Free RADIUS Testing and Monitoring Tools

When troubleshooting a RADIUS server, it's good to have a client simulator program. These five RADIUS testing and monitoring tools can help you test the initial configuration of the server and any changes.

Lock Down Your Windows Server Security Needs With TekRADIUS

Looking for a proven RADIUS server to meet your authentication, authorization and accounting needs for your Windows infrastructure? Consider TekRADIUS, a feature-rich Windows Service available in two flavors that supports multiple protocols.

5 Must-Have Media Servers

A media server offers many improvements over traditional file shares for storing, archiving and sharing multimedia presentations. Here are five worthy candidates to consider.

Setting Up a VPN Server on a Tomato Router, Part 2

Tomato Router is one way to bypass expensive equipment to give users secure remote access or connect offices. Learn how to configure the VPN server and clients as well as how to best test it out.

Setting Up a VPN Server on a Tomato Router, Part 1

Building a VPN? Tomato Router is one way to bypass expensive equipment to give users secure remote access or connect offices.

BlackBerry Enterprise Server Express Enables SMBs to Go the Distance

For most business, mobile phones are as valuable to the business as computers and land lines. Connect them to your business' existing network services, and they're even more valuable. For SMBs wishing to do this, BlackBerry Enterprise Server Express is the perfect trifecta of inexpensive, easy and reliable.

Setting Up an Open Source Server, Firewall and Router on Endian, Part 2

We've stepped through a basic Endian config, now we'll take it to the next step, including creating OpenVPN client accounts, connecting road warrior clients, and configuring gateway-to-gateway connections.

Setting Up an Open Source Server, Firewall and Router on Endian, Part 1

There are numerous open source server, firewall and router and projects, but few, like Endian, are also Linux distros that can turn any system into both a full-featured network and Internet security appliance. We step through a basic Endian config, including setting up the Internet connection and creating a local network, and then setting up the OpenVPN server.

Setting Up OpenVPN on a DD-WRT Router, Part 2

A VPN is an effective way to keep remote workers and branch offices as secure as those in HQ. A VPN server plays a major role in this architecture. We continue our look at how to set up a VPN server, from stepping though how to enable the OpenVPN server and copy in SSL certificates, to configuring clients and testing.

Setting Up OpenVPN on a DD-WRT Router, Part 1

A VPN enables users to remotely access file or connect remote offices together via secure tunnels over the Internet. If you're building a VPN for more than two-dozen VPN users, setting up a VPN server is a viable option. Find out how to do so using DD-WRTDD-WRT router firmware.

Running Open Source Servers Within Windows

If you run a Windows shop, you may think Apache, FreeRADIUS and FreeNAS are off limits. Think again. With a few simple choices, any of these popular open source servers can be deployed in a snap.

Grow Your Own Cloud Servers With Ubuntu

Looking to experiment with cloud computing? With Ubuntu Enterprise Cloud, it's easy to turn ordinary servers into cloud servers and build a private cloud.

Top 5 Uses for Old PCs

Have some desktop PCs lying around and gathering dust? Instead of throwing them away, consider making one into a web or mail server, using one to experiment with Linux, or converting one into a router. Here are five great ways to breathe new life into old equipment.

XPerience ClearBox Enterprise RADIUS Server

No matter how much experience you have with RADIUS servers, XPerience Technologies' ClearBox's low price point and seemingly high feature set aims to have something for you.

Server Room DIY, Configuring Apache2Triad and Your Domain Name

Web server up and running? Now learn how to configure and manage it using Apache2Triad as well as how to get going with a domain name.