Articles in Category: Network IP Addressing
The IP address is how computers and other devices are identified on a TCP/IP network. Articles relate to IP addresses, how they work, what they are and what they do and do not tell you.
When your computer can’t get an IP address any other way, it assigns itself a 169.254 IP address. It’s a sure sign of a problem.
Thanks to popular media, many people expect much more from an IP address than is practically available. I’ll separate myth from fact.
While getting someone’s name and address from their IP address is technically possible, it’s also typically difficult and requires law enforcement.
Every router has at least two IP addresses. It’s a characteristic of how routers do their jobs.
Sometimes using a DNS service other than that provided by your ISP makes sense. I’ll show you how to make the change.
The DNS servers used by your computer are most likely specified by your ISP. I’ll look at how to tell which servers they are and why you might consider changing them.
Minimally, web servers get your IP address when you visit. Whether or not that or other information can actually be used to identify you, specifically, depends on a lot of things.
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.
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.
A MAC address can easily be traced for as far as it travels. The problem is, a MAC address doesn’t travel far enough to be useful.
A subnet mask is a way of telling your computer or router what network addresses are local and which are remote.
While you cannot find the specific owner of an IP address, I’ll look at a few tools to see what IP-related information you can get.
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.
Finding out that you are on a blacklist can be a nightmare. So how do you get off of it?
It’s important to understand the terminology when it comes to masking an IP address. Depending on your security needs, some need to be done differently.
In this scenario, you’ll end up with two IP addresses, but the hub and router won’t each get one. I’ll explain.
There are several ways websites can reasonably approximate your location and serve up ads specific to locale. We’ll look at each.
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.
This IP address looks like both the IPv4 address and the IPv6 address that’s been assigned to that particular network node.
People can tell very little from your IP address. For example, they cannot tell who or where you are. How much they can tell varies a great deal.
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.
Two computers should never have the same IP address if they’re on the same network. If they do, results are unpredictable.
If there is a conflict with your IP address, it could result in only one of the machines on your network working at a time.