swoole connection failed

Use a browser or TCP debugging tool to connect and there are several diagnostic ideas:

1. Check with php -m for the swoole extension

2. Check the default firewall status (not running is displayed after it is closed, and running is displayed after it is opened)

firewall-cmd --state Check whether the firewall is closed

3. Check whether there is its own executable file. Execute

ps -ajft

4. Use telnet for link testing telnet 127.0.0.1 9502

yum install telnet

ctrl】Exit the process

5. If there are no problems with the above

Go to the server to see if there is a port number specified by swoole_server("0.0.0.0",9502); in the security group

Recommended Learn: swoole video tutorial

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