Articles in Category: Networking
Network connectivity and configurations, protocols and problems, articles relating to how computers connect.
Adding a wireless access point to extend your network’s range can be confusing. Many routers come with wireless capability, but you only need one router.
An outbound firewall will alert you to suspicious connections. The biggest problem? If correct, it’s too late.
A MAC address and your IP address are both key components to networking, but they serve different purposes, and are visible in very different ways.
Windows Firewall will protect your machine from other computers that share
the “safe side” of the router.
Ping is one of the oldest diagnostic tools. It simply validates connectivity from point A to point B, and in doing so provides additional useful information.
Peer-to-peer file-sharing programs have a bad reputation because of the content they’re often used to download. But the technology is quite legal and useful for legitimate purposes.
Wi-Fi Sense, a new feature in Windows 10, is designed to make connecting to wireless networks easier. You’ll probably want to turn off Wi-Fi Sense for privacy.
Using a password protected WPA2 hotspot is a minor inconvenience for a very significant level of additional security. I’ll explain…
Heartbleed did not affect all versions of open SSL. So first we should check if we even need to worry.
Without the proper security others will be able to access your computer and your files, and even watch what you do online. Fortunately, setting up basic security is easy.
Home networking can be very difficult. But I have a little trick that works easily for me.
Are you finding mysterious downloads coming into your computer? It may be nothing sinister. But on the other hand… we’d better check the source.
Even a cached version of a website could send information about you back to the original server. The thing is that we just don’t (and can’t) know.
With one exception, having an open port is not dangerous. But the way that ports work is interesting!
When you are connected to a wireless network, but cannot get to the internet, it’s because an IP address has not been assigned to you. So how do you fix that?
Some smart routers can act as a local DNS servers in an attempt to speed things up.
Hotels and other hotspot providers often insist that you agree to some terms of service before you can use their internet. The problem is that insistence can often interfere with the connection.
Finding out that you are on a blacklist can be a nightmare. So how do you get off of it?
In this scenario, you’ll end up with two IP addresses, but the hub and router won’t each get one. I’ll explain.
Many things can interfere with a network speed test on your end. Make sure your speed test gives you the most accurate results by following these guidelines.
I have a rant about hotels that nickel and dime you on an internet connection. Fortunately, there might be something that you can do about it.
The communication path between two end points will be the slowest piece of the connection path. That will be the maximum speed that you can achieve on any network.
There are several ways websites can reasonably approximate your location and serve up ads specific to locale. We’ll look at each.
Without a doubt, having lots of tabs open can impact a computer’s speed. Whether or not it slows down the entire network will depend on exactly what all those tabs are doing.
The fact that your extender isn’t giving you access to set up security concerns me. I don’t believe it’s common and I’m really surprised it’s not there.
Trying to control children’s access to the internet has been a problem since computers first came into the home. A simple low-tech answer might be the best.
Comparing your machine’s IP address to that reported by a website may result in a surprising difference. I’ll explain why that is and why it’s a good thing.
DHCP stands for Dynamic Host Configuration Protocol, and is how computers request and receive “dynamic” IP addresses as well as additional configuration information.
Unfortunately, network sniffing is a very simple thing to do and it has actually nothing to do with the network discovery option.
This IP address looks like both the IPv4 address and the IPv6 address that’s been assigned to that particular network node.
NAT is a fundamental technology used by routers allowing you to share internet connections and stay safe. I’ll give a conceptual overview.
Everyone wants a faster internet connection. I’m frequently asked if it’s possible to combine two or more connections for speed. The answer is yes … but.
You hear a lot about the wireless internet, but it’s not something you can just connect to anywhere. It’s more often something you purchase and set up.
We’ll look at some of the specific information you’re making available to every website you visit, and briefly explain each.
I frequently hear from people who are quite insistent that they be able to trace an IP address to the person behind it. It’s just not that simple.
OK, I’ll admit it. That was me talking to myself. Again. As you might guess, I have several computers on my home network, and have had this problem of files not being visible for some time. I finally got tired of working around it and set out to find an answer.
There are several barriers to connecting to your home computer from work. We will look at four ways to do so.
It’s definitely possible to have multiple network connections to the same computer. But in order to make sense, they really need to be different networks. Otherwise you might not get the results you’re looking for.
This is another of those questions I asked myself. I’m finding myself spending more time in rural Washington state, with more expected. My primary way of staying connected to the internet is my cellular phone’s data plan, but out here on the farm we’re in a fringe area. Coverage is weak, and disconnects are common. … Read more
You’re quite right, Bluetooth is a wireless technology. I actually have mixed feelings about it, because my early experiences with it … well, to be frank, they sucked. But I hear things are getting better.
Essentially “Double Natting” is what happens when you place your computer behind a NAT router which is itself, behind another NAT router. Occasionally it just happens, particularly in corporate environments where you want a small network to be isolated from the corporate network it’s on, which in turn is isolated from the internet that it’s … Read more
In case you need to test your website, there are ways that you can fake the DNS IP lookup to be able to do so. We’ll take a look at how that’s done.
Connecting two different internet connections is technically possible, but not easily and not likely to accomplish what you have in mind.
Network adapters often try to detect the network speed for you. This can cause problems if both sides are trying to auto-detect at the same time.