Red Hat nmcli command
Learn how to define a static address on Red Hat 8 using Network Manager command line tool. Secure your network…
Network manager has a new command line utility called nmcli.
Nmcli is a very robust command line utility used to manage network connections.

nmcli Syntax
nmcli [OPTIONS] OBJECT { COMMAND | help }
Verify Red Hat System Interfaces
nmcli
Set static IP Address and Gateway
nmcli con mod enp0s3 ipv4.addresses 192.168.1.100/24 ipv4.gateway 192.168.1.1
Change to static config
nmcli con mod enp0s3 ipv4.method manual
Set DNS Addresses
nmcli con mod enp0s3 ipv4.dns "8.8.8.8"
Reload the Interface
nmcli con up enp0s3
User Account Management in Linux
https://www.redhat.com/sysadmin/becoming-friends-networkmanager