Book Image

Red Hat Enterprise Linux 8 Essentials

By : Neil Smyth
1 (1)
Book Image

Red Hat Enterprise Linux 8 Essentials

1 (1)
By: Neil Smyth

Overview of this book

Red Hat Enterprise Linux 8 is one of the most secure and dependable operating systems available. For this reason, the ambitious system or network engineer will find a working knowledge of Red Hat Enterprise 8 to be an invaluable advantage in their respective fields. This book, now updated for RHEL 8.1, begins with a history of Red Enterprise Linux and its installation. You will be virtually perform remote system administration tasks with cockpit web interface and write shell scripts to maintain server-based systems without desktop installation. Then, you will set up a firewall system using a secure shell and enable remote access to Gnome desktop environment with virtual network computing (VNC). You’ll share files between the Red Hat Enterprise Linux 8 (RHEL 8) and Windows System using Samba client and NFS. You will also run multiple guest operating systems using virtualization and Linux containers, and host websites using RHEL 8 by installing an Apache web server. Finally, you will create logical disks using logical volume management and implement swap space to maintain the performance of a RHEL 8 system. By the end of this book, you will be armed with the skills and knowledge to install the RHEL 8 operating system and use it expertly.
Table of Contents (32 chapters)
32
Index

12.2 Installing and Enabling NetworkManager

NetworkManager should be installed by default for most RHEL 8 installations. Use the rpm command to find out if it needs to be installed:

# rpm -q NetworkManager

NetworkManager-1.14.0-14.el8.x86_64

If necessary, install the package as follows:

# dnf install NetworkManager

Once the package is installed, the NetworkManager daemon will need to be enabled so that it starts each time the system boots:

# systemctl enable NetworkManager

Finally, start the service running and check the status to verify that the launch was successful:

# systemctl start NetworkManager

# systemctl status NetworkManager

● NetworkManager.service - Network Manager

   Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor >

  Drop-In: /usr/lib/systemd/system/NetworkManager.service.d

           └─NetworkManager...