Linux Network configuration

1. IP address configuration

1.1 Temporarily configure IP addresses with the ifconfig command

Use command: ifconfig eth0 192.168.0.200 netmask 255.255.255.0

1.2 Using the Setup tool to permanently configure IP addresses (RedHat proprietary tools)

Post-Change input command: Service network restart

and change the onboot of the file in 1.3.1 to Yes, otherwise ifconfig can only see the LO information, and no eth0 information

1.3 Modifying the network configuration file ( standard configuration mode )

1.3.1 Network card information file

Automatic Access Prerequisites: DHCP server exists in LAN

　　　　　　

1.3.2 Host name File

　　　　　　

1.3.3 DNS configuration file

　　　　　　

1.4 Graphical Interface Configuration IP address

2. Virtual Machine Network parameter configuration

2.1 Configuring the IP address of Linux: Setup command

2.2 Starting the network card

　　　　

2.3 Modifying the UUID (if the system is copied, the UUID will be the same, and the network communication is not possible)

　　　　

2.4 Set the virtual machine network connection mode-change to bridge

　　　　

2.5 Modifying the bridge adapter

　　　　

　　　　

Linux Network configuration