How to Configure a Static IP Address on AlmaLinux 9 Using networkctl

Setting up a static IP address is essential for servers that require consistent network connectivity, such as web servers, databases, or internal applications. In AlmaLinux 9, systemd-networkd provides a modern and efficient way to manage network configurations.

In this guide, we’ll walk you through configuring a static IP address using networkctl and systemd-networkd on AlmaLinux 9.

What You'll Learn

Why Use systemd-networkd for Static IP Configuration?

systemd-networkd is a lightweight, built-in network management service that offers several advantages

• Faster boot times- Minimal overhead compared to traditional network managers.

• Simplified configuration- Uses clean, structured configuration files.

• Better systemd integration- Works seamlessly with other systemd services.

• Reliable for servers- Ideal for headless and production environments.

If you're managing a server, systemd-networkd ensures stability and control over your network settings.

Step-by-Step Guide to Setting a Static IP on AlmaLinux 9

Step 1: Check systemd-networkd Status

Before configuring a static IP, ensure systemd-networkd and systemd-resolved are running

 
systemctl status systemd-networkd
systemctl status systemd-resolved

                                            

If they’re inactive, start and enable them

 
sudo systemctl start systemd-networkd
sudo systemctl start systemd-resolved
sudo systemctl enable systemd-networkd
sudo systemctl enable systemd-resolved 
                                        

Step 2: Identify Your Network Interface

Find your active network interface name using

 
ip link

                                            

Look for interfaces like eth0, enp0s3, or similar.

Step 3: Create a Static IP Configuration File

Navigate to the network configuration directory

 
cd /etc/systemd/network/

                                            

Create a new .network file (replace enp0s3 with your interface name)

 
sudo nano 20-static-ip.network

                                            

Add the following configuration (adjust IP, gateway, and DNS as needed)

 
[Match]
Name=enp0s3

[Network]
Address=192.168.1.100/24
Gateway=192.168.1.1
DNS=8.8.8.8
DNS=8.8.8.4


                                        

📌 Key Notes

• Address=192.168.1.100/24→ Replace with your desired static IP and subnet.

• Gateway=192.168.1.1→ Use your router’s gateway IP.

• DNS→ You can use Cloudflare (1.1.1.1) or your preferred DNS servers.

Save and exit (Ctrl+O, Enter, Ctrl+X).