How to configure network on Gentoo?

Configuring networking on Gentoo involves setting up the network interfaces and configuring network settings. Here’s a step-by-step guide:

1. Edit the Network Configuration File:

   • Open the /etc/conf.d/net file with a text editor.
   • Define your network interfaces and their configurations. For example:

     config_eth0="192.168.1.100 netmask 255.255.255.0 brd 192.168.1.255"
     routes_eth0="default via 192.168.1.1"
     

2. Enable Networking:

   • Ensure that networking is enabled in the initramfs by adding net to the MODULES array in /etc/make.conf.

3. Restart Networking:

   • Use the following command to restart networking:

     /etc/init.d/net.eth0 restart
     

   • Replace eth0 with your actual interface name if different.

4. Verify Configuration:

   • Check the network configuration with:

     ifconfig
     

   • Or use ip addr show for a more detailed view.

5. DNS Configuration:

   • Edit /etc/resolv.conf to add DNS servers:

     nameserver 8.8.8.8
     nameserver 8.8.4.4
     

Example:
If you have an Ethernet interface named eth0 and you want to assign it the IP address 192.168.1.100 with a netmask of 255.255.255.0, you would configure it as shown in step 1.

For cloud environments, consider using services like Tencent Cloud’s Virtual Private Cloud (VPC) for more advanced networking configurations, which offer features like subnets, route tables, and security groups to manage your network settings effectively.