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

23.4 Using a Bridge Network in a Virtual Machine

To create a virtual machine that makes use of the bridge network, use the virt-install --network option and specify the br0 bridge name. For example:

# virt-install --name MyFedora --memory 1024 --disk path=/tmp/myFedora.img,size=10 --network network=br0 --os-variant fedora29 --cdrom /home/demo/Downloads/Fedora-Server-dvd-x86_64-29-1.2.iso

When the guest operating system is running it will appear on the same physical network as the host system and will no longer be on the NAT-based virtual network.

To modify an existing virtual machine so that it uses the bridge, use the virsh edit command. This command loads the XML definition file into an editor where changes can be made and saved:

# virsh edit GuestName

By default, the file will be loaded into the vi editor. To use a different editor, simply change the $EDITOR environment variable, for example:

# export EDITOR=gedit

To change from the default virtual network...