Assigning a Static IP Address to the Server

Introduction: A static IP address ensures that your server maintains a consistent address, which is important for various server functions and network configurations. This section outlines the steps to assign a static IP address to your server running Ubuntu.

Steps:

1. Determine Network Configuration:

   • First, identify the network interface name that you want to assign a static IP address to. You can find this information by running the following command:
     ip a
   • Note the interface name (e.g., "eth0" or "ens33") for the subsequent steps.

2. Edit Network Configuration File:

   • Open the network configuration file for editing using a text editor. For example:
     sudo nano /etc/netplan/01-netcfg.yaml
   • Find the network configuration for the chosen interface and update it to specify the static IP settings. Replace the placeholders with your own values:
     network:

     version: 2

     renderer: networkd

     ethernets:

     eth0: # Replace with your interface name

     addresses: [YOUR_STATIC_IP/24]

     gateway4: YOUR_GATEWAY_IP

     nameservers:

     addresses: [DNS_SERVER_1, DNS_SERVER_2]

3. Apply Network Changes:

   • After editing the configuration, save the file and apply the changes by running:
     sudo netplan apply

4. Verify IP Configuration:

   • Confirm that the static IP address is set correctly by running:
     ip a show eth0 # Replace with your interface name

5. Restart Networking:

   • To ensure that the static IP is properly configured, restart the networking service:
     sudo systemctl restart systemd-networkd

Conclusion: By following these steps, you have successfully assigned a static IP address to your Ubuntu server. A static IP address provides stability and predictability to your server's network configuration, making it easier to manage and access services consistently.