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  • php-fpm sock文件权限设置

    在编译php-fpm时,若没有指定fpm用户,在配置文件中也没有指定用户,则sock文件会由root(启动php-fpm的用户)创建,其权限是srw-rw----

    而nginx一般由nginx用户启动,会导致无法读取sock文件,造成nginx返回502错误。

    nginx日志会记录错误如下:

    2018/09/12 17:06:17 [crit] 30735#0: *1 connect() to unix:/dev/shm/php-cgi.sock failed (13: Permission denied) while connecting t
    o upstream......
    

    解决办法是在配置文件中指定listen用户

    ; Set permissions for unix socket, if one is used. In Linux, read/write
    ; permissions must be set in order to allow connections from a web server. Many
    ; BSD-derived systems allow connections regardless of permissions. 
    ; Default Values: user and group are set as the running user
    ;                 mode is set to 0666
    listen.owner = fcgi
    listen.group = wwwgroup
    listen.mode = 0666
    

    改完后重启php-fpm即可

    注:sock文件存放在/dev/shm目录下,
    此目录下将sock文件放在内存里面,有助于性能提升

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  • 原文地址:https://www.cnblogs.com/xzlive/p/9636220.html
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