The content of this article is about how to temporarily modify the IP and permanently modify the IP in centos7. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Temporarily modify IP

ifconfig eno16777736 192.168.1.101

Note (eno16777736) is the default first network interface name

Permanently modify the IP

Step one: Check the network interface

ifconfig

Step two: Go to the corresponding network interface configuration file to modify the configuration, please note The file name is (ifcfg-default first network interface name), and the file path is /etc/sysconfig/network-scripts/

vim /etc/sysconfig/network-scripts/ifcfg-network interface name

Modify the following configuration

TYPE=Ethernet

BOOTPROTO=static

HWADDR=00:0c:29:ce:3f:3c #MAC address

IPADDR=192.168.1.104 #STATIC IP

GATEWAY=192.168.1.2 #Default Gateway

NETMASK=255.255.255.0 #Subnet mask

DNS1=192.168.1.2                                                                                                                ##OthersDEVICE=Physical device name

IPADDR=IP address

NETMASK=Mask value

NETWORK=Network address

BROADCAST=Broadcast address

GATEWAY=Gateway address

ONBOOT=[yes|no](Whether to activate the device during boot)

USERCTL=[yes|no](Not Whether the root user can control the device)

BOOTPROTO=[none|static|bootp|dhcp] (Do not use the protocol when booting|static allocation|BOOTP protocol|DHCP protocol)

HWADDR= You MAC address

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