tencent cloud

Problem Description

To protect TencentDB from DDoS attacks, TencentDB for MySQL prohibits the ping command from being used to check the network connectivity of a private network address by default.

Note：

You can use the ping command to check the network connectivity of a public network address.

Solution

We recommend troubleshooting and locating network connectivity problems quickly with the telnet command.

• The command format is as follows:

  telnet private/public IP address private/public port

• After the command is executed, network access status is as follows:

  • Normal network access
    
  • Exceptional network access
    

Note：

If there is still no network access after running the telnet command, you can easily troubleshoot private and public network connection problems with the connectivity check tool.