Strange problems with switches
Network switches are supposed to be simple devices that work at TCP/IP layer 1, the hardware layer. As far as the network is concerned, and...
Build your own DNS server on Linux
Learn how to use BIND to set up your own server for resolving domain names.
NetworkManager on Linux: #3 — How I migrated to NetworkManager Connection Files for configuration
Interface configuration files may not be supported in Fedora much longer, but migrating to NetworkManager is easier than you might think.
NetworkManager on Linux: #2 — A sysadmin’s guide to network interface configuration files
Simplify the complex world of interface configuration files with this handy tutorial.
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.
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.
How I configured a DHCP server for my personal lab network
The Dynamic Host Configuration Protocol (DHCP) provides network configuration data to client hosts on a network, allowing for centralized network configuration management.
Diagnose connectivity issues with the Linux ping command
Networking is what makes the Internet, the cloud, file shares, media streaming, remote administration, printing, and much more possible. When something goes wrong, it can sometimes be challenging to diagnose. One of the most fundamental diagnostic tools for networked connectivity is the ping command.
