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The 6 Best Free Dynamic DNS Providers
A DDNS service can help you connect to your home PC while on the move. Here are the best free dynamic DNS providers you can use.
How to Trace Emails Back to Their Source IP Address
Here's how to trace that email back to where it came from... and why you'd want to do it!
How to Find All IP Addresses on a Network
As a network administrator, understanding which IP addresses are currently in use on a network is extremely important.
How to Configure Static IP Address on Ubuntu 22.04 LTS and 22.10
Switching from dynamic IP allocation to static IP addresses is easy on Ubuntu 22.04 "Jammy Jellyfish" and 22.10.
What Is IP Blacklisting and What Kind of Protection Does It Provide?
You can prevent quite a bit of harm online simply by blocking certain IP addresses. A blacklist helps you do this en masse.
Can You Turn Off Strict NAT Type College Wi-Fi?
Want to play and host matches with fellow Xbox gamers? It will largely depend on your NAT type...
How Do Load Balancers and Real IP Relationship Risk Your Security?
Load balancers play an important role in information security, but they can also lead to problems with IP spoofing and more.
What Are WebRTC Leaks and How Can You Prevent Them?
Your real IP address could leak thanks to WebRTC. Here's why that's bad for your privacy and what you can do about it.
How to Find the IP Address of Your Printer: 4 Methods That Work
Having trouble finding the IP address of your printer? Thankfully, it's not too complicated. Here's what you can do.
How to Geolocate IP Addresses on Linux Using geoiplookup
geoiplookup is a command-line utility that lets you find the actual geographical location of a website's server.
Static vs. Dynamic IP Address: Which Is More Secure?
Hackers can trick you using IP snooping, but with static and dynamic IP addresses available, which one offers the best protection?
How to Find the IP Address of a DHCP Server in Linux
As part of a network, a DHCP server also has an IP address. Here's how you can find it on Linux.
What Is Shodan and How Can It Improve Your Online Security?
Shodan can be used by hackers to target your devices, but it's not all bad. In fact, it can help you protect from cybercriminals too.
How to Find Your Phone's IP Address on Android or iPhone
Wondering how to check your mobile phone's IP address? Here's how to find both the public and private IP addresses on your iPhone or Android phone.
How to Build a Ping Sweeper in Python
Build this useful and informative utility with barely a handful of lines of Python.
How to Find Your Router's IP Address
What is your router's IP address and how can you access its settings? How can you find a router IP using the device in your hand?
What Is a Static IP Address? Here's Why You Don't Need One
A static IP address is one that never changes. Dynamic IP addresses do change. We explain why you don't need a static IP address.
What Are TCP and UDP Ports?
Your computer uses these protocols every day without fail, but what do they actually do?
3 Ways IP Grabber Links Are Security and Privacy Risks
Learn what IP grabbers are, how they work, and the different ways they can be security and privacy risks while browsing online.