502错误的网关NGinx

Question

我使用的是Nginx服务器，以前从来没有使用过，所以如果我错过了一些愚蠢的东西，我道歉，但我对所有这些都是新的。

在我的error.log中，我有：

[error] 2105#0: *87 connect() failed (111: Connection refused) while connecting to upstream, client: 86.58.251.66, server: premium.bookboon.com, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "premium.bookboon.com"

我不确定为什么会发生这个错误。这是我的nginx.conf：

user www-data;
worker_processes 4;
pid /run/nginx.pid;

events {
    worker_connections 1024;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # nginx-naxsi config
    ##
    # Uncomment it if you installed nginx-naxsi
    ##

    #include /etc/nginx/naxsi_core.rules;

    ##
    # nginx-passenger config
    ##
    # Uncomment it if you installed nginx-passenger
    ##

    #passenger_root /usr;
    #passenger_ruby /usr/bin/ruby;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}


#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
# 
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
# 
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
# 
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

我见过很多这样的问题可以通过修复一些php-fpm选项来解决，但是我使用的服务器似乎并不使用它，一个快速的find / -name "php-fpm"什么也不会返回，所以我在这里有点迷茫。

/sites-enabled/default：

server {
       listen         80;
       listen [::]:80 default_server ipv6only=on;

       server_name    premium.bookboon.com;
       return         301 https://$server_name$request_uri;
}

server {
    listen 443 ssl;

    root /var/www/premium/web;
    server_name premium.bookboon.com;

    ssl_certificate /etc/ssl/certs/premium.bookboon.com_bundle.crt;
    ssl_certificate_key /etc/ssl/private/premium.bookboon.com.key;

    location / {
        # try to serve file directly, fallback to rewrite
        try_files $uri @rewriteapp;

    } 
    location @rewriteapp {
        # rewrite all to app.php
        rewrite ^(.*)$ /app.php/$1 last;
    }

    location ~ ^/(app|config|test)\.php(/|$) {
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param HTTPS off;
    fastcgi_param ENVIRONMENT "prod";
    }

    error_log /var/log/nginx/premium_error.log;
    access_log /var/log/nginx/premium_access.log;

}

任何帮助都将不胜感激。

Answer 1

Nginx本身并不包含任何用于执行PHP代码的组件。为此，它需要PHP-FPM。

您的nginx被配置为使用PHP-FPM，但是(正如您已经说过的)没有安装PHP-FPM。

如果你想运行PHP脚本，你需要安装和配置PHP-FPM。在基于Debian的系统上使用apt-get install php5-fpm完成安装。您通常还需要安装几个php5-*库包。(取决于您要运行的应用程序，因此请阅读其文档或尝试执行它并查找错误消息。)

配置PHP-FPM并不复杂，默认设置应该可以。注意，您的nginx被配置为通过网络套接字与PHP-FPM通信！确保文件/etc/php5/fpm/pool.d/www.conf中的listen参数配置了正确的IP地址和端口组合，例如listen = 127.0.0.1:9000。

您通常还必须在php.ini中进行一些编辑，但这是非常特定于您的用例的，超出了本主题的范围。