Centos network basic configuration command

Nic configurations are divided into two types:

Dynamic: the memory is reserved for the moment.

 
Ifconfig eth0 192.168.0.x/24
 

Static -- exists after startup.

 
CD/etc/sysconfig/network-scripts/
Cat ifcfg-eth0 (display text)
Vim ESC +. (quick, use the parameters of the previous command)
 

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Onboot = Yes (Automatic Operation)
Bootproto = DHCP (automatically assigned)
 

Replace this command:

 
Bootproto = static
Ipaddr = 192.168.x.x
Netmask = 255.255.255.0
 

Common commands:

 
Service Network restart (restart system network service) -- this method is recommended for remote control.
Ifconfig eth0 down = ifdown eth0 (disable Nic) -- remote unavailability, directly disconnected.
Ifconfig eth0 up = IFUP eth0 (Enabled)