Ubuntu 20.04 LTS: Configuring Static IP for Eth1 and Eth087

Ubuntu 20.04 LTS (Long Term Support) is widely known for its stability and extensive hardware compatibility. When setting up a network configuration in Ubuntu, assigning static IP addresses to network interfaces can provide enhanced control and stability for specific use cases. This guide will walk you through the process of configuring static IP addresses for the primary network interface (eth0) and a secondary network interface (eth1) on an Ubuntu 20.04 LTS system.

Prerequisites

Before proceeding, ensure that you have the following:* An Ubuntu 20.04 LTS system
* Root or sudo privileges
* Network connectivity
* Required IP address information (IP address, subnet mask, gateway address, DNS servers)

Step 1: Obtain Current Network Configuration

To gather information about your current network configuration, run the following command:```
ip addr show
```

This command will display a list of network interfaces and their associated IP addresses. Identify the names of the eth0 and eth1 interfaces.

Step 2: Edit Network Configuration File

Use a text editor like nano or vi to edit the network configuration file:```
sudo nano /etc/netplan/
```

Step 3: Configure Static IP for Eth0

Within the network configuration file, add or modify the following section for the eth0 interface:```
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: false
addresses: [IP_ADDRESS/SUBNET_MASK]
gateway4: GATEWAY_ADDRESS
nameservers:
addresses: [DNS_SERVER1, DNS_SERVER2]
```

Replace IP_ADDRESS, SUBNET_MASK, GATEWAY_ADDRESS, DNS_SERVER1, and DNS_SERVER2 with the appropriate values for your network configuration.

Step 4: Configure Static IP for Eth1

Similarly, configure the eth1 interface by adding or modifying the following section:```
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: false
addresses: [IP_ADDRESS/SUBNET_MASK]
gateway4: GATEWAY_ADDRESS
nameservers:
addresses: [DNS_SERVER1, DNS_SERVER2]
eth1:
dhcp4: false
addresses: [IP_ADDRESS/SUBNET_MASK]
gateway4: GATEWAY_ADDRESS
nameservers:
addresses: [DNS_SERVER1, DNS_SERVER2]
```

Again, replace the values with those specific to your network configuration.

Step 5: Apply Network Configuration

After making the necessary changes to the network configuration file, apply them by running:```
sudo netplan apply
```

This command will generate and apply the appropriate network configuration files.

Step 6: Restart Network Service

To activate the new network configuration, restart the networking service:```
sudo systemctl restart networking
```

Step 7: Verify Network Configuration

Once the network service has restarted, verify the new IP addresses by running:```
ip addr show
```

You should see the assigned static IP addresses for both eth0 and eth1 interfaces.

Conclusion

By following these steps, you have successfully configured static IP addresses for the eth0 and eth1 network interfaces on your Ubuntu 20.04 LTS system. This configuration provides a more stable and controlled network setup suitable for specific networking scenarios. Remember to adjust the IP address information according to your specific network requirements.

2025-01-06

Previous：What‘s the FUD with Bitcoin?

Next：Shiba Inu (SHIB) April Price Forecast