切换亚马逊后出现这个问题，网页502 Bad Gateway nginx/1.20.1

比如刚装完的时候访问显示502，

也不知道什么问题，就去看了一下nginx日志  /var/log/nginx/error.log,发现了这个错误

2018/06/03 13:38:23 [error] 21332#21332: *301 connect() failed (111: Connection refused) while connecting to upstream, client: 115.159.183.71, server: 202.182.116.84, request: "GET /phpmyadmin/index.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "202.182.116.84"

 

location ~ \.php$ {
fastcgi_pass unix:/run/php/php7.4-fpm.sock; 
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param PATH_INFO $fastcgi_path_info;
include fastcgi_params;
}

unix:/run/php/php7.4-fpm.sock 是aws的正确配置，

原阿里云配置是fastcgi_pass 127.0.0.1:9000;

这可能和php 的本身的配置有关，我这么菜就不深究了，在此纪录这个问题