CentOS 7 Tips

Post-Tasks to Minimal Install

Chrony
Screen
vim-enhanced
Rsync
mailx
bind-utils (with dig/nslookup)
net-snmp
net-snmp-utils
yum-utils

Remove virbr0 network interface

# Stop and Disable the service
systemctl stop libvirtd.service
systemctl disable libvirtd.service

# Remove the virbr0 interface
brctl show
ip link set virbr0 down
brctl delbr virbr0

# Verify that the bridge has been removed.
brtcl show