Red Hat 6/oel6 Network configuration

Modify IP address
[[email protected] ~] # cd / etc / sysconfig / network-scripts /

[[email protected] network-scripts] # ll ifcfg * #Switch to the network card configuration directory

-rw-r--r--. 1 root root 280 Dec 20 01:28 ifcfg-eth0 #View the configuration of the network card. Since only one network card is configured, there is only eth0

-rw-r--r--. 1 root root 254 Apr 12 2016 ifcfg-lo #Return test, system use

[[email protected] network-scripts] # gedit ifcfg-eth0 #Edit the configuration file of eth0

DEVICE = eth0 #device name

TYPE = Ethernet #Network type Ethernet

UUID = 849c2c0f-f685-4b85-8917-75e578d6ebc5 #HWADDR HardWare Address Hardware address MAC address

ONBOOT = yes # Whether to start with the system

NM_CONTROLLED = yes # Whether it is managed by the network program

BOOTPROTO = none #dhcp: Obtain IP address automatically none: Fixed IP address static: Fixed IP address

IPADDR = 192.168.56.88 #IP address

PREFIX = 24 #Subnet mask, a total of 32 IP addresses, 24 means the first 24 bits are 1, which is equivalent to 255.255.255.0

GATEWAY = 192.168.56.1 #Gateway

DEFROUTE = yes

IPV4_FAILURE_FATAL = yes

IPV6INIT = no

NAME = "System eth0"

HWADDR = 00: 0C: 29: 49: 9F: 0B

LAST_CONNECT = 1513702340

Restart network service after saving changes

[[email protected] network-scripts] # /etc/init.d/network restart

Shutting down interface eth0: Device state: 3 (disconnected)

                                                           [OK]

Shutting down loopback interface: [OK]

Bringing up loopback interface: [OK]

Bringing up interface eth0: Active connection state: activated

Active connection path: / org / freedesktop / NetworkManager / ActiveConnection / 4

                                                           [OK]

or

[[email protected] network-scripts] # service network restart

More settings can refer to

https://www.cnblogs.com/picaso/archive/2012/07/02/2572888.html