How to set a fixed IP address in CentOS7 virtual machine

Since my development environment is to install CentOS in a VMWare virtual machine, and then set up interception in the host file, I can directly jump to the CentOS of the virtual machine, but the IP address of the virtual machine will always change, so I have to modify the host file at any time, which is very troublesome. I decided to use a fixed IP for the virtual machine and recorded the steps for future reference. I hope it can help other friends.

Environment: Host is Windows 10 VMWare 12 Centos 7.5

1. Set up the network connection mode of the virtual machine

Click on the virtual machine name -> right click -> settings

Modify the network adapter. The network connection mode can be selected as "NAT mode" or "Custom"

2. Edit->Virtual Network Editor

Select VMNet8 and click "Change Settings"

Uncheck "Use local DHCP service to assign IP addresses to virtual machines" Set the subnet IP segment and subnet mask. Try to make the subnet IP segment different from the host IP segment.

Click "NAT Settings"

Set the gateway. It cannot be the same as the IP address of the virtual machine. Remember this gateway, which will be used in the third step. It corresponds to GATEWAY

3. Modify the CentOS configuration file in the virtual machine

cd /etc/sysconfig/network-scripts Enter the configuration directory

Modify the configuration file vim ifcfg-eno16777736 [the system is different, the name of the network card is also different]

BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.8.123 #The IP segment to be set is the same as NETMASK=255.255.255.0
GATEWAY=192.168.8.2 #Needs to be consistent with the gateway set by the virtual network card in the second step DNS1=8.8.8.8 #This must be set, otherwise it will result in being able to ping the external IP but not the domain name

After the modification is completed, save and exit.

Restart network services

systemctl restart network.service 

Check that the IP address is the IP address you want to set

Ping www.baidu.com can access the external network

Let's expand here and save some exit commands:

:w save the file but do not exit vi
:w file Save the changes to file without exiting vi
:w! Force save, do not exit vi
:wq save the file and exit vi
:wq! Force save the file and exit vi
q: Exit vi without saving the file
:q! Do not save the file and force exit vi
:e! Abandon all changes and start editing from the last time the file was saved

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.