CentOs Set Static IP method

When doing the project, because the local area network uses the automatic IP to obtain the way, leads to each time the server restarts the host IP to change.

To solve this problem, you need to set up a static IP.

1. Modify the NIC configuration edit: Vi/etc/sysconfig/network-scripts/ifcfg-eth0

Device=eth0 #描述网卡对应的设备别名, for example, in Ifcfg-eth0 file it is eth0

Bootproto=static #设置网卡获得ip地址的方式, the possible options are static,dhcp or BOOTP, corresponding to statically specified IP addresses, IP addresses obtained through the DHCP protocol, IP addresses obtained through the BOOTP protocol

broadcast=192.168.0.255 #对应的子网广播地址

HWADDR=00:07:E9:05:E8:B4 #对应的网卡物理地址

ipaddr=12.168.0.33 #如果设置网卡获得 IP address is statically specified, this field specifies the IP address of the NIC

netmask=255.255.255.0 #网卡对应的网络掩码

network=192.168.0.0 #网卡对应的网络地址

2. Modify the Gateway Configuration

EDIT: Vi/etc/sysconfig/network modified as follows:

Networking=yes (Indicates whether the system uses a network and is generally set to Yes.) If set to no, the network cannot be used, and many system services programs will not start.

Hostname=centos (Set the hostname of this machine, the host name set here should correspond to the hostname set in/etc/hosts)

gateway=192.168.0.1 (Sets the IP address of the gateway for the native connection. )

　I'm editing this here. The first three items are already default, so only the gateway is added.

3. Modify the DNS configuration

EDIT: vi/etc/resolv.conf modified as follows

NameServer is the DNS server IP address, the first is the preferred one, the second is the standby.

4. Restart the Network Service

Execute command:

Service network restart or/etc/init.d/network restart

CentOs Set Static IP method