Need a jump start on Unix networking? Whether you're working on your home network or setting up systems at work, here are some basic Unix commands and insights that might prove helpful. Once upon a ...

The most important networking command in Linux might be ping. This command lets you check if a remote machine is responding to your requests. You can use ping to check if your internet connection is ...

The ufw (uncomplicated firewall) represents a serious simplification to iptables and, in the years that it’s been available, has become the default firewall on systems such as Ubuntu and Debian. And, ...

In the vast ocean of network communications, Network Address Translation (NAT) stands as a pivotal lighthouse, guiding the flow of data packets to their correct destinations while conserving the ...

This sample chapter from the only authorized companion guide for the Cisco Networking Academy Program introduces newcomers to the basic concepts and components of modern computer networks. The chapter ...