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• Option #1 - Manual configuration
  The VM appliance is a normal CentOS 7 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/<interface_name>.
• 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-eth0ens192.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 BlockDEVICE="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

  <interface_name>

  
  

  
  

Be sure to verify the following settings:

• IPADDR
• NETMASK
• BROADCAST
• GATEWAY
• NAME; the interface name as found with the ip address command
• DEVICE; the interface name as found with the ip address command
• DNS;

Next restart the network service for the setting to take affect.  In our testing the DHCP address was still present, and the static IP assigned as a secondary (this can be seen with the 'ip address' command).  The DHCP address can be removed by using the 'ip address command del' command or be rebooting the system.

TYPE=Ethernet
IPADDR=192.168.10.201
NETMASK=255.255.255.0
BROADCAST=192.168.10.255
GATEWAY=192.168.10.51
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=enp0s3
UUID=9099afe7-6dd6-4aec-bd93-8950b67ab8f5
DEVICE=enp0s3
ONBOOT=yes
DNS1=192.168.10.80
DNS2=8.8.8.8

Set Up Firewall (optional)

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