[CentOS] centos-7 reinstall

[anax]

If fisxed IP Addresses are to bo set up, I usually do it in
/etc/sysconfig/network-scripts/ifcfg-interfacename. This file, on a
Centos 7 installation, looks like this:


DEVICE="eth0"
ONBOOT=yes
NETBOOT=yes
NM_CONTROLLED=no
UUID="2c15111b-dd3d-4b31-9c5c-e01f13e36242"
BOOTPROTO=static
#BOOTPROTO=dhcp
HWADDR="90:1b:0e:11:f9:28"
TYPE=Ethernet
NAME="eth0"
#IPADDR=192.168.97.67
IPADDR=212.90.206.131
#NETMASK=255.255.255.0
NETMASK=255.255.255.224
MTU=1450
#GATEWAY=192.168.97.2
  GATEWAY=212.90.206.129
#
IPV6INIT=yes
# global scope
IPV6ADDR="2002:d45a:ce86::163/64"
# site scope
IPV6ADDR_SECONDARIES="fec0::240:5ff:fe51:d92d/64"

if you do changes in this file, you have to

ifdown interfacename
ifup interfacename

in order to activate them.

suomi


On 2014-11-05 17:10, James B. Byrne wrote:
> I have a test system that I am using to investigate CentOS-7.  I note the
> following difficulty when booting from the Minimal Install DVD.
>
> Neither on the initial install nor on subsequent attempts at re-installing
> CentOS-7 can I set the IPv4 interface to a static IP address.  I can configure
> it but I cannot save the changes.  The save button remains greyed out.
>
>