Add essential vocal techniques to your toolkit. In this course—the third in a series focusing on learning how to sing—discover techniques that can provide you with a solid foundation as a singer. Professional vocalist Lari White breaks down how to harmonize with any music you like to sing, craft your vocal tone by employing vibrato and messa di voce, and work with the chest and head voice. She also gives you a crash course in working with microphones, and explains how to use the Nashville Number System to read and write music.

Learn how to sing. Whether you're an instrumentalist who has never sung or an experienced singer looking for new techniques and ways to strengthen your instrument, this course was designed to meet you where you are. Join professional vocalist Lari White as she helps you get started as a singer.

Linux servers often contain thousands of users and user files. It's easier to maintain users if they are contained in groups, but only if the limitations of groups are understood and managed properly. This course shows how to manage Linux users and groups using command line tools.

Join the Linux revolution. Learn why this open-source operating system is taking over the world. This course covers an overview and basic implementation of CentOS 7, a community-driven server operating system that makes a great introduction to enterprise Linux. Grant McWilliams helps you configure VirtualBox on your local machine, and covers the basics of network configuration, initial software installation, and postinstallation configuration of CentOS, including working with GNOME 3, an open-source desktop environment that makes Linux as easy to run as Mac or Windows. These lessons are the foundation for learning Linux system administration, and critical for getting a CentOS deployment up and running.

When you're working at the Linux command line, you don't have to give up the multitasking flexibility you're accustomed to in a graphical user interface. Have a long-running copy operation preventing you from editing a configuration file? Send it to the background and reclaim your time! In this short course, author Scott Simpson shows you how to switch tasks to the background and bring them back to the foreground. He also demonstrates screen and tmux, two very popular utilities for creating working environments that persist between connections.

This course takes you through the basics of firewalls on Linux. Sean Colins shows you how to configure Firewalld for local protection, work with SELinux, and troubleshoot firewalls. He also covers iptables, default policies, port blocking, and port forwarding. Learn how to install GUI controls and utilities, manage zones and services, enable servers, set access controls, change ports, move files, and more.

Bash scripting can help you automate routine tasks and save valuable time, whether you're a Linux user, sys admin, or software developer. Kevin Dankwardt has written thousands of bash scripts, short and long. Here he teaches you how to read and write scripts, and provides a series of scripting challenges to help you test your new skills.

Learn the essential commands involved in Linux administration, using Ubuntu. This course starts by exploring common filesystems and installing Linux. Next, working with the files in the terminal is covered. Then, important security steps are demonstrated. After covering these basics, you'll be ready to take on the Essential Commands section of the LFCS exam.

Firewalls are integral for IT professionals who need to secure and monitor network traffic. In this course, learn how to plan for, deploy, administer, and maintain a network firewall. Sean Colins provides an overview of the role of a firewall, and how it's used to secure traffic on an organization's network. He explains how to assess and plan for your organization's needs—including planning an IPv4 scheme.

Whether you want to set up a media server, a file sharing server, remote access, or you just want to hone your Linux skills and create something useful along the way, this course has the steps you need to be able to set up and use Ubuntu Server as your solution. Ubuntu Server is a platform that can be leveraged for business or home use. This course covers hardware needs, installation steps, setting up local services, and accessing resources remotely.