Centos network interface configuration file ifcfg-eth

===== Centos network interface configuration file ifcfg-eth

File/etc/sysconfig/network-scripts/ifcfg-eth0 in/etc/sysconfig/network-script under this directory, store the network interface (NIC) the ifcfg-eth0 is the default first network interface, if there are multiple network interfaces on the machine, then the name will push the ifcfg-eth1, ifcfg-eth2, ifcfg-eth3 ...... (The file here is very important and involves whether the network can work normally ).

 

==== Setting format: Set Value = value ====

Set the project as follows:

* Device Interface Name (device, nic)

* Userctl [Yes | no] (whether non-root users can control the device)

* [None | static | BOOTP | DHCP] (protocol not used during boot | static IP allocation | BOOTP protocol | DHCP protocol)

* Hwaddr MAC address

* Whether the network interface is valid when the onboot system is started (Yes/No)

* Type network type (usually ethemet)

* Netmask network mask

* Ipaddr IP Address

* Whether ipv6init IPv6 is valid (Yes/No)

* Gateway default gateway IP Address

* Broadcast address

* Network address

==== See the following example ====

* Device = eth0

* Bootproto = static

* Broadcast = 192.168.1.255

* Hwaddr = 00: 0C: 2x: 6x: 0x: xx

* Ipaddr = 192.168.1.23

* Netmask = 255.255.255.0

* Network = 192.168.1.0

* Onboot = Yes

* Type = Ethernet