安装CentOS mininal版本后，如何启动network

linux启动network

Looks like your eth0 is not set up. Here is what I did to fix mine on CentOS 6.4.

sudo su -

cat /etc/sysconfig/network |grep -i network
This should return: NETWORKING=yes - If it does not, then change it to yes.

vi /etc/sysconfig/network-scripts/ifcfg-eth0
This should look like:

DEVICE="eth0"
HWADDR="08:00:27:07:9e:57"
NM_CONTROLLED="YES"
ONBOOT="NO"
There are a few options that we want to change here, NM_CONTROLLED needs to be NO, ONBOOT needs to be YES, and finally add this code at the bottom:

BOOTPROTO="dhcp"
This will allow you to grab an IP from your DHCP and essentially enable IPV4.

Now the whole file should look like this:

DEVICE="eth0"
HWADDR="08:00:27:07:9e:57"
NM_CONTROLLED="NO"
ONBOOT="YES"
BOOTPROTO="dhcp"
Save and close. Now, lets restart the network service to reload with these settings:

[root@Development ~]# service network restart
Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:
Determining IP information for eth0... done.
                                                           [  OK  ]
Notice the ‘eth0′ – awesome! Now lets check to see if we got an IPV4 from our DHCP:

ifconfig
You should now see 'eth0'.