OEL netwerk configuration

Sometimes a system has been initiated to use DHCP and the use of a static ip-address is required, including correct dns resolution and gateway settings.

The following steps accomplish this:

Define the parameters of the NIC
  • Connect as root
  • Go to directoy /etc/sysconfig/network-scripts
  • Identify the file that is used for the NIC that you must define:
    for example ifcfg-eth0 is for the traditional first network card.

  • Verify/Change the settings depending on your needs
  • When changing from dhcp to static addressing, the file should become something like this:
    BOOTPROTO=static

    BROADCAST=192.168.1.255
    HWADDR=xx:xx:xx:xx:xx
    IPADDR=192.168.1.102
    NETMASK=255.255.255.0
    NETWORK=192.168.1.0
    ONBOOT=yes

Define the paramter for the network in itself
  • Connect as root
  • Go to /etc/sysconfig
  • Edit the file network
  • Set the hostname here and the gateway for the network.
  • The file should contain something like:
    HOSTNAME=myservername

    GATEWAY=192.168.1.1


Set the resolv.conf file with the nameservers
  • Connect as root
  • Go to directory /etc
  • Edit the file resolv.conf
  • Add/modify lines in the file with the specification of the nameserver.
  • An example
    search hellings.be

    nameserver vvv.xxx.yyy.zzzz

  • Add as many nameservers as you require
Restart the network
  • Connect as root
  • Restart the network
    service network restart

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