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Chapter 9. Network Configuration

Setup simply prompts for the hostname and the settings used during installation are written to the system. Many networks have a DHCP (Dynamic Host Configuration Protocol) service that automatically supplies connected systems with domain name, leaving the user to enter a host name. By default, Fedora activates all network interfaces on your computer and configures them to use DHCP.

Fedora contains support for both IPv4 and IPv6. However, by default, Fedora configures network interfaces on your computer for IPv4, and to use DHCP via NetworkManager. Currently NetworkManager does not support IPv6. If your network only supports IPv6 you should use system-config-network after installation to configure your network interfaces.

[Note] Modem Configuration

The installation program does not configure modems. Configure these devices after installation with the Network utility. The settings for your modem are specific to your particular Internet Service Provider (ISP).

9.1. Hostname

On some networks, the DHCP provider also provides the name of the computer, or hostname. The complete hostname includes both the name of the machine and the name of the domain of which it is a member, such as The machine name (or "short hostname") is machine1, and the domain name is

To set up a home network that is behind an Internet firewall or router, you may want to use hostname.localdomain for your Fedora system. If you have more than one computer on this network, you should give each one a separate host name in this domain.

[Tip] Valid Hostnames

You may give your system any name provided that the full hostname is unique. The hostname may include letters, numbers and hyphens.

If your Fedora system is connected directly to the Internet, you must pay attention to additional considerations to avoid service interruptions or risk action by your upstream service provider. A full discussion of these issues is beyond the scope of this document.

  Published under the terms of the GNU General Public License Design by Interspire