nginx 配置 php-fpm

2018 年 2 月 9 日 23:33:03CentOS评论501字数 538阅读 1 分 47 秒阅读模式

一、基本配置

nginx 默认配置文档中的 php 配置，这段配置是可用的：

location ~ \.php$ {
    root           html;
    fastcgi_pass   127.0.0.1:9000;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    include        fastcgi_params;
}

location ~ \.php$ {

root html;

fastcgi_pass 127.0.0.1:9000;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;

include fastcgi_params;

}

一些情况下使用这段配置可能会导致以下错误：

[error] 20591#0: *14 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 127.0.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/usr/local/php/var/run/php-fpm.sock:", host: "127.0.0.1"

1	[error] 20591#0: *14 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 127.0.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/usr/local/php/var/run/php-fpm.sock:", host: "127.0.0.1"

此时需要把配置中的：

fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;

1	fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;

修改成：

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

1	fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

二、修改 fastcgi 的监听方式为 socket

当并发量小的时候，可以考虑把 fastcgi 的通信方式改成 socket ，socket 可以减少一部分 tcp 开销，性能更优一点。

打开修改 php-fpm 的配置文件，查找 listen 做如下修改：

# 注释掉本行
; listen = 127.0.0.1:9000
# socket 文件的目录，保证启动用户有权限访问到上级目录
listen = /usr/local/php/var/run/php-fpm.sock

# 注释掉本行

; listen = 127.0.0.1:9000

# socket 文件的目录，保证启动用户有权限访问到上级目录

listen = /usr/local/php/var/run/php-fpm.sock

nginx 中的配置：

location ~ \.php$ {
    root           html;
    # 改成 socket 文件的地址
    fastcgi_pass   unix:/usr/local/php/var/run/php-fpm.sock;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
    include        fastcgi_params;
}

location ~ \.php$ {

root html;

# 改成 socket 文件的地址

fastcgi_pass unix:/usr/local/php/var/run/php-fpm.sock;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

然后重启 nginx 和 php-fpm 即可。

遇到的错误

[crit] 20721#0: *16 connect() to unix:/usr/local/php/var/run/php-fpm.sock failed (13: Permission denied) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/usr/local/php/var/run/php-fpm.sock:", host: "127.0.0.1

1	[crit] 20721#0: *16 connect() to unix:/usr/local/php/var/run/php-fpm.sock failed (13: Permission denied) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/usr/local/php/var/run/php-fpm.sock:", host: "127.0.0.1

这是因为 nginx 启动用户没有权限访问 socket 文件，需要在 php-fpm 的配置文件中修改启动用户，然后重启 php-fpm：