Set Static IPv4 on AlmaLinux

Step 1: Identify Your Network Interface
First, you need to find the name of your network interface. You can list all network connections with:

nmcli connection show

Mine was enp0s3

Step 2: Configure the Static IP Address

To set a static IP address, use the following command, replacing with the name of your connection, and adjusting the IP address, gateway, and DNS as needed:
bash

sudo nmcli connection modify <your_connection_name> ipv4.addresses 192.168.12.100/24
sudo nmcli connection modify <your_connection_name> ipv4.gateway 192.168.12.1
sudo nmcli connection modify <your_connection_name> ipv4.dns 8.8.8.8
sudo nmcli connection modify <your_connection_name> ipv4.method manual


Reference for above:
ipv4.addresses: Set this to your desired static IP address and subnet mask (e.g., /24 for 255.255.255.0).

ipv4.gateway: Set this to your network's gateway.

ipv4.dns: You can specify one or more DNS servers (e.g., Google's DNS 8.8.8.8).

ipv4.method manual: This tells NetworkManager to use a static IP configuration.

Step 3: Bring the Connection Up

After modifying the connection settings, you need to bring the connection down and then back up to apply the changes:

sudo nmcli connection down <your_connection_name>
sudo nmcli connection up <your_connection_name>

Step 4: Make sure everything is correct

To confirm that your static IP address has been set correctly, you can check the current IP configuration with:

nmcli device show <your_interface_name>