nginx - nginix issues

Question

After setting up lnmp and this happens, is it a problem with ngnix configuration?

Answer 1

What error is reported? 502? Post it and take a look.

Answer 2

Can static html be accessed? Return no?
If not, check the nginx process status and configuration file.
If possible, use the simplest output of php to confirm whether it can be parsed.

Answer 3

Connection timeout, according to my understanding, most of them are caused by the external firewall port not being opened.

First try using curl internally, and finally check the logs frequently.