What should I do if CentOS cannot ping the external network?

What to do if CentOS cannot ping the external network

1. First enter the command: ifconfig to view the IP and mac address of CentOS;

2. Then try to ping 192.168.0.23. It can ping successfully, but cannot ping the external network;

3. You can modify the network configuration file and add mac to the configuration file. Address;

Enter: cd /etc/sysconfig/network-scripts, enter the network-scripts folder, and view the available gateways

Recommended learning: CentOS usage tutorial

4. Modify the configuration file, enter: vi ifcfg-enp0s3, add a line of HWADDR, and DNS can also be added.

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