Don't-Miss Networking Stories

How to set up a cross-platform network

As your business grows and you add employees and computers, you’ll need to find a way to connect them—especially if you’re working in a cross-platform environment. By using suitable off-the-shelf networking equipment and the various operating systems’ built-in tools, you can connect your heterogeneous hardware to the universe in short order.

Fix an error 51 with the Cisco VPN Client

If you use the Cisco VPN Client, you may have occasionally been hit with an ‘error 51’ when trying to launch the program. Learn how to fix that problem without rebooting your Mac.

Restore Screen Sharing buttons to 10.5.5

Learn a couple ways to bring back the hidden but useful toolbar buttons from pre-10.5.5 versions of OS X's Screen Sharing application.

Use a command-line AirPort tool

Learn how to use an Apple-provided tool to manage your Mac's AirPort card and connections.

Gain full keyboard and mouse control in 10.5’s screen sharing

Do you use 10.5’s screen sharing feature? Have you been frustrated by the inability to send, for instance, Command-Tab to the remote Mac? Here’'s a simple way to solve that, and other, problems.

ExpressCard/34 Buyers’ Guide

If you've got a MacBook Pro, you've got an ExpressCard/34 slot (instead of the old PC Card slot). Jeff Carlson explains a few of the ways you can use that slot to beef up your laptop.

More ways to protect yourself from phishing scams

Use the OpenDNS service, to give all your browsers—including Safari—protection from phishing attacks.

See more AirPort Extreme Base Station radio modes

If you’re using an AirPort Extreme Base Station on a network without 802.11n-capable machines, you can use a hidden feature in AirPort Utility to set a non-802.11n radio mode.

Installing Nagios on Mac OS X 10.5 Server

John C. Welch updates his instructions for installing the open-source Nagios on to the latest version of OS X Server, an operation that will turn a Mac into a network monitoring station that can notify you of hardware and software problems.

Adding 802.11n to older iMac

Have an 802.11n network that's slowed down by an older Mac's "g" wireless card? Here's a solution.

Windows and AirPort's Equivalent Network Password

Windows wants your AirPort base station's key code. Here's how to find it.

Close the ports

While OS X has long included basic firewall software, Leopard introduced some significant changes to it, leaving many Leopard users confused as to how to keep their Macs secure. But though the firewall interface in Mac OS X 10.5 is indeed quite different from that in earlier versions of the OS, it’s still relatively easy to use.

The portable hotspot

If you travel with colleagues for business trips, or if your multiple-Mac family brings its laptops on vacation, getting Internet access for everyone can be an exercise in configuration frustration. There is an alternative: a cellular router.

Improving AirPort's range

While Wi-Fi signals are supposed to reach 150 feet in any direction from a gateway, that optimistic number is rarely reached indoors.

Troubleshooting AirPort Interference

Imagine a large room full of loud people. Voices bounce off the walls, making it impossible to follow any one conversation. That’s something like what happens to wireless networks: there are all sorts of other electronic devices out there using the same wireless spectrum, and your AirPort hardware can have a hard time distinguishing one transmitter from another.