Chapter 5 . Getting on the Internet 181 (Web site designers)
Wednesday, September 26th, 2007Chapter 5 . Getting on the Internet 181 Configuring Ethernet from the Desktop Most major Linux distributions offer graphical tools for configuring network interfaces. These tools step you through the information you need to enter, and then start up the network interface (if you choose) to begin browsing the Web. Here is a list of tools for configuring network interfaces in a few different Linux distributions. Some of these are graphical tools, and some are menu-based: . Red Hat Enterprise/Fedora Linux The Network Configuration window lets you configure network connection using Ethernet, ISDN, modem, Token Ring, Wireless, and xDSL hardware. Start the Network Configuration window from the red hat menu by selecting System Settings.Network or by typing systemconfig- network and entering the root password when prompted. (On older Red Hat Linux systems, the command was redhat-config-network.) . SUSE Linux The YaST Control Center that comes with SUSE contains features for configuring your network. From the SUSE menu on the panel, select System.YaST, and then choose Network Devices. The YaST Control Center lets you configure a DSL, ISDN, Modem, or Network Card interface to the network. Select Network Card to configure your wired Ethernet Interface to the Internet. . Gentoo Linux From a shell (as root user), type net-setup eth0 to start a menu-driven interface to configure the network connection from your first Ethernet card (eth0). The tool lets you have the interface try to start using DHCP or use static address information that you provide yourself. . KNOPPIX Select the squished penguin icon in the panel on the Knoppix desktop, and choose Networking/Internet from the menu. Select the Network card configuration menu entry to configure your network card. Or select from several other network equipment types instead (ADSL, GPRS, ISDN, Modem, or Wavelan). Using Network Configuration GUI An example of a graphical tool for configuring your Ethernet interface is the Network Configuration GUI that comes with Fedora and Red Hat Enterprise Linux systems. If you did not configure your LAN connection during installation of Fedora or RHEL, you can do so at any time using the Network Configuration window. The IP address and host names can be assigned statically to an Ethernet interface or retrieved dynamically at boot time from a DHCP server. A computer can have more than one IP address because it can have multiple network interfaces. Each network interface must have an IP address to connect to a network (even if the address is assigned temporarily). So, if you have two Ethernet cards (eth0 and eth1), each needs its own IP address. Also, the address 127.0.0.1 represents the local host so that users on the local computer can access services in loopback. Note
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