centos6.5/6.6 system configuration on virtual machine dynamic mode of Internet access and production environment configuration public network mode

Installing a CentOS system on a VMware Workstation virtual machine, when the system is unable to access the Internet, we can use the usual configuration method as follows:

Type=ethernet

Device=eth0 #网络虚拟接口名
hwaddr=00:0c:29:60:ff:8b #网卡mac地址
Onboot=yes #启动系统时就激活

Nm_controlled=yes #实时生效, there is no need to restart the NIC immediately after the change takes effect.
Bootproto=dhcp #使用自动分配IP地址

Note: Virtual Machine network connection mode select NAT

When we use the server to install the CentOS system, the production environment is configured as follows:

To configure a static IP address:

[Email protected] ~]# Cat/etc/sysconfig/network-scripts/ifcfg-eth0

Device=eth0
Bootproto=static
ipaddr=117.40.239.12

netmask=255.255.240.0
gaeway=117.40.239.1
Hwaddr=00:21:97:68:f2:70
Type=ethernet
uuid=480c82ca-d673-466d-902a-9f31eaeb897c
Onboot=yes
Nm_controlled=no

To set up a gateway:

[Email protected] ~]# cat/etc/sysconfig/network

Networking=yes
hostname=sky9896
gateway=117.40.239.1

Set up DNS

[Email protected] ~]# cat/etc/resolv.conf

NameServer 202.101.224.68
NameServer 8.8.8.8

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centos6.5/6.6 system configuration on virtual machine dynamic mode of Internet access and production environment configuration public network mode