Red Hat
Graphically in KDE
  1. > System Settings > Network.
  2. This will bring up a window called Network Configuration. The first Ethernet device should be highlighted - eth0. Click the Edit button.
  3. The Ethernet Device window will be open. There is a choice of either obtaining the IP address automatically using DHCP or to set it up statically.
  4. Once the options have been set, exit out of the windows. A message will popup saying the Ethernet card should be restarted.
  5. Bring up a terminal window: > System Tools > Terminal.
  6. Become root in the Terminal window with /bin/su
  7. Once root use the commands:
    • ifdown eth0
    • ifup eth0
  8. The network card should now be configured
Manually Network information is kept in: /etc/sysconfig/network-scripts/ifcfg-eth0 A file set up to obtain the network information from DHCP has the following look: DEVICE=eth0 BOOTPROTO=dhcp ONBOOT=yes The ifcfg-eth0 file configured to obtain the network information statically is as follows: DEVICE=eth0 BOOTPROTO=none ONBOOT=yes IPADDR=<number> NETMASK=<number> GATEWAY=<number> TYPE=Ethernet NETWORK=<number> BROADCAST=<number> Once ifcfg-eth0 has been configured the following commands should be run as root:
  • ifdown eth0
  • ifup eth0