Centos DNS modification, fixed IP, and other operations

1. Modify DNS

Modify the DNS configuration file of the corresponding Nic

 
VI/Etc/resolv. conf
 

Content format (xigong University)

; Generated by/sbin/dhclient-Scriptnameserver114.114.114.114Nameserver202.117.80.2Nameserver202.117.80.3Nameserver202.117.80.200
 

2. Modify the Gateway 

 
VI/Etc/sysconfig/Network
 

Modify the following content

Networking =Yes (indicates whether the system uses the network, which is generally set to yes. If it is set to no, the network cannot be used, and many system service programs cannot be started.) hostname= Centos (set the Host Name of the local machine. The host name and/etc/The host name set in hosts corresponds to) Gateway=192.168.1.1(Set the IP address of the gateway connected to the local machine. For example, the gateway is 10.13.32.1)
 

3. Specify the IP address

 
VI/Etc/sysconfig/network-scripts/ifcfg-eth0
 

Make sure the specified IP address does not conflict.

Device = eth0 # describe the device alias corresponding to the NIC, for example, ifcfg- In the eth0 file, it is eth0bootproto = Static # Set the way for the NIC to obtain the IP address. The possible options are static, DHCP or BOOTP, which correspond to the IP address specified at the static state, the IP address obtained through the DHCP protocol, and the IP address obtained through the BOOTP protocol.  Hwaddr = 00 : 07 : E9: 05  : E8: B4 # physical IP address of the corresponding network adapter ipaddr = 10.13 . 32.123  # If you set the method for obtaining the IP address from the NIC to static, this field specifies the IP address of the NIC.Gateway = 10.13.32.1 # Gateway

Netmask =255.255.255.0# Network mask corresponding to the NIC

Prefix = 24

Defroute = Yes

Ipv6init = No1_6_autoconf = No Onboot = Yes
Type = Ethernet

Nm_controlled = Yes

 

Centos DNS modification, fixed IP, and other operations