Ifconfig only lo and no eth0 solution

CentOS Virtual Machine ping www.baidu.com prompt to find unknown host, a check is not set IP on the virtual machine next to my DNS is not.

The command settings are as follows:

1. Enter Ifconfig to see if there is any information for lo and eth0,

One: If you only have lo, you need to manually create the eth0.

Second: If you have eth0, manually modify his parameters.

2. First, create the parameters we need by naming them.

Vi/etc/sysconfig/network-scripts/ifcfg-eth0,

I, enter the Insert edit mode, the specific parameters are set as follows:

Device=eth0

Bootproto=none (can also be set to static IP address)

Onboot=yes

Type=ethernet

netmask= Subnet Mask

Ipaddr=ip No.

Userctl=no

Ipv6init=no

Peerdns=yes

gateway= Gateway (consistent with the gateway on your machine)

ESC, exiting edit mode

shift+:wq! Save and Exit commands

3.ifconfig-a to see if it takes effect.

4.service network restart, Web server restart

5.ping +ip (IP set by virtual machine), prompt success

6.ping + Gateway, prompted as follows, on behalf of our set or there is a problem

7. Manually set up DNS with the following command

vi/etc/resolv.conf;

I, enter insert mode, set as follows:

nameserver=8.8.8.8 (This is the Google default setting, of course you can set the same as the DNS on your machine)

ESC, exit edit mode;

shift+:wq! Save and Exit commands

8.service network restart, Web server restart

9.ping + Gateway, if not, you need to detect your virtual machine network settings. If NAT is selected by default, the bridge mode is changed.

10. After Setup, reboot your virtual machine, ping+ Gateway, PING+IP should be successful

11.ping+www.baidu.com appears as follows, which means the setup was successful ~

Ifconfig only lo and no eth0 solution