nginx,php 502錯誤解決

一：錯誤場景：leyangjun-cc-web.com/api/cc/callback.php 訪問返回502php   二：Nginx錯誤報錯爲：html 2018/10/22 18:07:09 [crit] 775#0: *41 connect() to unix:/var/run/php7.0-fpm.sock failed (2: No such file or directory) wh

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