Hi@akhtar,
To set a static ip in Red Hat linux, follow the below steps.
$ systemctl start NetworkManager
$ nmcli connection add con-name name ifname enp0s3 type ethernet ip4 ip/24 gw4 “getway ip” ipv4.dns “dns ip” connection.autoconnect yes
$ nmcli connection show
$ nmcli connection up name
Hope it will help you.
Thank You