How To Configure Static IP On Debian 12 ?

Setting a static IP on Debian 12 ensures your system always uses the same network address, which is useful for servers or devices that require a fixed connection. Debian 12 uses Netplan or traditional interfaces depending on the setup.

Step 1: Identify Your Network Interface

Check your network interfaces using:

ip a

Look for names like eth0, enp0s3, or ens33.

Step 2: Edit Netplan Configuration

Open your Netplan YAML file. Usually located in /etc/netplan/:

sudo nano /etc/netplan/01-netcfg.yaml

Step 3: Configure a Static IP

Modify the file to set a static IP. Example configuration:

network:
  version: 2
  renderer: networkd
  ethernets:
    enp0s3:
      dhcp4: no
      addresses:
        - 192.168.1.50/24
      gateway4: 192.168.1.1
      nameservers:
        addresses: [8.8.8.8, 8.8.4.4]

Replace enp0s3 with your interface name and adjust the IP, gateway, and DNS servers as needed.

Step 4: Apply the Configuration

Save the file and apply the changes with:

sudo netplan apply

Step 5: Verify the Static IP

Check that your interface now uses the assigned IP:

ip a

You should see your static IP listed for the chosen interface. Your Debian 12 system now has a static IP configured and ready for consistent network use.