After a recent email newsletter article on securing your wireless network, Clif (of the Clif Notes Newsletter that I enjoy) wrote to yank my leg a little and to ask:

Hi Terry,

I appreciate your tips on securing the router. Most of the wifis in my neighborhood are wide open. That’s nice when my cable goes out and my neighbor’s dsl is still running … I just hop on the neighbor’s wifi for a quick ride. Do you think I should tell them?

I use a different method to secure my wifi. I use a “trusted stations” list in my router that only allows PCs with a MAC address that I’ve entered there. My network looks wide open, but they can’t log onto it.

How does that sound?

Clif

Clif already knows my thoughts about open networks and why they should be closed — that’s why he included a grinning smiley face. While an open wireless network can be handy for use by others, there are security risks for both the network operator and the person connecting through the open network.

Continue reading Security versus the Open Wireless Network

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OK, you have a new computer and you’ve made the decision to keep your old computer, and you want your spouse and children to be able to do email and surf the web without demanding your computer.

Let’s assume you already have an existing home computer network — if you don’t, the first article in this week’s online newsletter is for you…

There are two basic ways that computers on home networks can get the IP addresses and other network data they need in order to communicate with each other: we can enter the data into the configuration screens, if we want to use static (unchanging) IP addresses, or we can set the router to assign IP addresses dynamically using DHCP.

Continue reading Adding a Computer to an Existing Home Network

I answered a question recently from someone who wondered whether a router was necessary with a cable Internet connection.

No if’s, and’s or but’s, I recommend a router for any cable or dsl connection.

Whether you intend to have multiple computers connected or not, the router will give you another layer of security. Most significantly, the router will actually gives your computer a “non-routable IP address”. The router isolates anything on the local area network (LAN) side of the router from the Internet (the Wide Area Network - WAN).

This isolation, and the “Network Address Translation” that the router does for your computers, means that you can access computers on the Internet, but no computer on the Internet side of the router can touch yours. All they can do is send a response from your computer to your router ” your router will know how to get the response to your computer.

If you watch, you can find a good deal on a wired router. If you get a wireless one, make sure you can actually disable the wireless function — I used to have a Belkin where there was no option to turn off wireless. If you doesn’t use wireless, turn off the wireless functions.

Continue reading Router for 1 Computer?