[Go]linux network configuration (config/etc/sysconfig/network-scripts/ifcfg-ethx)

Background

The software needs to be installed on the server, and it must be connected to a public network like a MAVEN agent.
First configured the gateway, found that the public network can be accessed through IP, in the configuration of DNS can access the public network through the domain name

Instance

Configure how Linux can surf the web

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

Configuring or modifying gateways and DNS in a configuration file

DNS1=8.8.8.8  GATEWAY=192.168.1.1 

Restart the NIC

service network restart

Detailed

For network management in Linux systems, we often use powerful ifconfig commands.

However, the Ifconfig command configures the network card information, after the network card restarts after the machine restarts, the configuration does not exist. In order to keep the above configuration information in the computer forever, it is necessary to modify the network card configuration file. There is a very important member in the configuration file:/etc/sysconfig/network-scripts/ifcfg-ethx (Note: Echx refers to the device name, such as eth0, etc.).

The network information in the Ifcfg-ethx file configuration is still in effect after the reboot, which is very useful in network management, and now I ifcfg-ethx the IPV4 network configuration method for a simple description of the file.

Open commands and information according to the file Ifcfg-eth0 as follows:

[[Email protected] ~]# Vi/etc/sysconfig/network-scripts/ifcfg-eth0 Device=eth0#网卡设备名称 Onboot=yes#启动时是否激活 Yes | No bootproto=Static#协议类型 DHCP BOOTP none ipaddr=192.168.1.90  #网络IP地址 netmask=255.255.255.0  #网络子网地址 gateway=192.168.1.1  #网关地址 broadCAST= 192.168.1.255  #广播地址 hwaddr=00:0C: 29:fe:1a:09  #网卡MAC地址 type=ethernet  #网卡类型为以太网       

Note: You will need to re-import the file after you modify the file Ifcfg-ethx to take effect, the following commands:

[[email protected]~]# /etc/init.d/network reload   #命令有start | restart | stop | reload

[Go]linux network configuration (config/etc/sysconfig/network-scripts/ifcfg-ethx)