Linux turns 27 today
Linux is 27 years old today. Happy birthday Linux and thank you Linus Torvalds for giving us a real operating system to use on our computers. I have used Linux for over 20 years and I cannot imagine using anything else on my computers.
I have never used Windows as a primary operating system on any of my many computers. I started with DOS, then went to OS/2, and then to Linux. To be completely honest I do have one VM with Windows on it that I use for research for articles and books. But I keep it tightly caged in that VM. ;-)
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A Linux networking guide to CIDR notation and configuration
One of the key concepts in network routing that any Linux professional should be familiar with is network notation. CIDR stands for Classless-Inter Domain Routing; it defines a notation methodology for network addressing that is used to specify the network portion of an IP address.
NetworkManager on Linux: #1 — Getting Started
Most current Linux distributions use NetworkManager for creating and managing network connections. Learn what NetworkManager is and how to use it to view network connections and devices for Linux hosts.
An introduction to Linux network routing
Every computer attached to a network requires some type of routing instructions for network TCP/IP packets when they leave the local host. This is usually very straightforward because most network environments are very simple and there are only two options for departing packets.
But that’s not always the case. Learn how to create a router with your Linux computer.
How to use udev
Udev is flexible but complex. Learn how to use udev so you can customize how Linux recognizes your devices.
Use lspci on Linux to see your hardware
Sometimes you need to identify the hardware in a system. One command used for this is lspci.
Introduction to the Domain Name System (DNS)
Learn how the global DNS system makes it possible for us to assign memorable names to the worldwide network of machines we connect to every day.