Steven Vona is a Linux administrator whose passion for technology extends beyond the day to day and into a love of teaching his skills to others. Steven is trained and certified in multiple technologies, including Microsoft Windows, Linux, VMWare and Cybersecurity, and has over 16 years of experience working in both the public and private sectors. Because Steven did not complete a traditional educational path, he is mostly self-taught and a strong believer in learning by experimentation. Steven began to teach himself programming at age 12 and ran a BBS in 1988; when teaching, he encourages others to try different solutions and learn from their mistakes and successes. Outside of technology, Steven is an animal lover and an avid photographer who enjoys exploring and photographing his native city, Philadelphia.
Disable Gnome Initial Setup Screen - gnome-initial-setup
How to disable the gnome initial setup screen that appears when you first logon to a Linux system.
Introduction to DNF History - How to Rollback System Updates
The DNF History command allows you to view, redo, undo and rollback updates and installation of packages on a Linux system.
Looping Through a File that Contains Spaces - Bash for Loop
Learn how to use a for loop on a file that contains spaces.
Run an Internet Speed Test from the Linux Command Line
How to run an internet speed test from the Linux command line. We examine two tools that both use the speedtest.net service to test your connection speeds.
Send File as Attachment or Email Body from Command Line
Learn how to send email from the Linux command line. We cover sending file contents as the body of the email as well as an attachment.
Introduction to /dev/null A.K.A. The Bit Bucket
This introduction examines what /dev/null is, it's nicknames and how to use it for things like suppressing output, inputting EOF, and clearing files.
4 Ways to Find Which Process is Listening on a Specific Port
Learn four methods to find which Linux process is listening on a specific port. We use four different commands and their options to find the information.
Find Last Reboot Time of Linux System from Command Line
Learn several methods for finding the last reboot time of a Linux system. We discuss finding the last date and time or the time since last reboot.
Cluster SSH - Manage Multiple Linux Servers Simultaneously
Cluster SSH (cssh) is a utility that allows you to manage multiple servers over SSH from a single administration console. It was originally designed to work with multiple nodes that make up a HPC (High Performance Computing) cluster. These nodes are usually configured identically, therefore...
DHCP + PING = DHCPING = Testing DHCP Availability
The dhcping utility is a tool to allow you to check if a DHCP server is functioning on the network. It is a tool that is handy for DHCP troubleshooting.