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• Option #1 - Manual configuration
  The VM appliance is a normal CentOS 6 system, hence all the mechanisms for network configuration in CentOS are available.
  Most specifically you'll be interested in the  files /etc/hosts, /etc/sysconfig/network, /etc/sysconfig/iptables and /etc/sysconfig/network-scripts/ifcfg-eth0.
• Option #2 - Use our example network configuration files
  

  Root's home directory contains 2 example network configurations, one for static IP's and one for DHCP.  Copy the one you require to /etc/sysconfig/network-scripts/ and edit it to suit:

  Code Block
  cp ifcfg-eth0.static /etc/sysconfig/network-scripts/ifcfg-eth0

  Now set the IP, netmask, gateway, and DNS if you like ( to add DNS you can add two lines, one for each server: DNS1=ip , DNS2=ip similar to the  example below); finally, run service network restart to activate.

  Code Block
  DEVICE="eth0" NM_CONTROLLED="yes" ONBOOT=yes TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=yes NAME=eth0 HWADDR=08:00:27:F0:24:96 IPADDR=192.168.0.112 NETMASK=255.255.255.0 GATEWAY=192.168.0.1 DNS1=74.202.226.66 DNS2=74.202.226.65

  More information on Enabling a DNS server using the Opmantek Virtual Appliance - Enabling DNS Server on Opmantek VM

• Option #3 - Use the menu-based tool system-network-config
  Simply type  in system-config-network and follow the prompts.
  NOTE: in Opmantek VM appliances before 8.5.12G the  tool is not preinstalled and you have to run yum install system-config-network-tui first.
  

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