First step VM setup
The second step must be switched to the root user, either log in directly, or switch
Use the su command to switch to the root user
Since the root user does not have a password at the beginning, first enter: sudo passwd root to initialize the root user password. It may be required to enter the password of the current user, and the root user password and the secondary input of the password will be required. Finally, switch between users through su username.
third step
First of all, the network card configuration information of Linux is in the **/etc/sysconfig/network-scripts** directory. There is a lot of network card information in this directory. The default is
ifcfg-enp0s3 like:
The fourth step is to open the network card automatically open
Vi command vi common command line - Cloud + Community - Tencent Cloud
Modify the content in ifcfg-enp0s3: vi ifcfg-enp0s3 ONBOOT=yes,
Then restart the linux server or start service network restart.
Step 5 Test
ping www.baidu.com
Notice
1. ctrl+c can terminate ping
2. ctrl+z can pause ping, the pause is just to put the process in the background, use the command fg to call it out to the foreground
3. You can also use ping -w 10 ip (domain name) or ping -c 10 ip (domain name)
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