我将nginx更新到1.4.7,将php更新到5.5.12,之后我得到了502错误。在我更新之前,一切都很好。

nginx-error.log

2014/05/03 13:27:41 [crit] 4202#0: *1 connect() to unix:/var/run/php5-fpm.sock failed (13: Permission denied) while connecting to upstream, client: xx.xxx.xx.xx, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "xx.xx.xx.xx"

nginx.conf

user  www www;
worker_processes  1;

        location / {
            root   /usr/home/user/public_html;
            index  index.php index.html index.htm;
        }
        location ~ [^/]\.php(/|$) {
            fastcgi_split_path_info ^(.+?\.php)(/.*)$;
            fastcgi_pass unix:/var/run/php5-fpm.sock;
            fastcgi_index index.php;
            fastcgi_param  SCRIPT_FILENAME    /usr/home/user/public_html$fastcgi_script_name;
            include fastcgi_params;
        }

当前回答

在这里:

user = nginx
group = nginx
listen.owner = nginx
listen.group = nginx
listen.mode = 0660

但这里也要改变:

; When set, listen.owner and listen.group are ignored
listen.acl_users = apache
;listen.acl_groups =

注释这一行:

; When set, listen.owner and listen.group are ignored
;listen.acl_users = apache
;listen.acl_groups =

其他回答

检查哪个用户运行nginx。截至Ubuntu 12.04, nginx由nginx用户运行,该用户不是www-data组的成员。

usermod -a -G www-data nginx

重新启动nginx和php5-fpm守护进程可以解决这个问题。

我也犯过类似的错误。

所有的建议都不起作用。

用nginx替换www-data的唯一方法是:

$ sudo chown nginx:nginx /var/run/php/php7.2-fpm.sock

/var/www/php/fpm/pool.d/www.conf

user = nginx
group = nginx
...
listen.owner = nginx
listen.group = nginx
listen.mode = 0660

事实上,“听”。mode”应该是:“0660”而不是“0666”,因为其他可写或其他可读从来不是一个好的选择。

因此,尝试找出您的web服务器运行的用户/组。我使用CentOs,它以“nginx”用户运行 所以在你的php-fpm.conf中添加:

listen.owner = nginx
listen.group = nginx
listen.mode = 0660

最后重新启动php-fpm

在这里:

user = nginx
group = nginx
listen.owner = nginx
listen.group = nginx
listen.mode = 0660

但这里也要改变:

; When set, listen.owner and listen.group are ignored
listen.acl_users = apache
;listen.acl_groups =

注释这一行:

; When set, listen.owner and listen.group are ignored
;listen.acl_users = apache
;listen.acl_groups =

下面的简单修复对我有用,绕过了套接字可能的权限问题。

在你的nginx配置中,设置fastcgi_pass为:

fastcgi_pass   127.0.0.1:9000;

而不是

fastcgi_pass   /var/run/php5-fpm.sock;

这必须匹配/etc/php5/fpm/pool.d/www.conf中的listen =参数,所以也将其设置为:

listen = 127.0.0.1:9000;

然后重新启动php5-fpm和nginx

service php5-fpm restart

And

service nginx restart

更多信息,请参见:https://wildlyinaccurate.com/solving-502-bad-gateway-with-nginx-php-fpm/