Nginx 설정 설명 (전재)

#  Nginx         
user www www;
#
#nginx   ,       CPU    .
worker_processes 8;
#
#          ,[ debug | info | notice | warn | error | crit ]
error_log /var/log/nginx/error.log info;
#
#    
pid /var/run/nginx.pid;
#
#  nginx              ,             （    ulimit -n） nginx     ,  nginx        ,     ulimit -n      .
worker_rlimit_nofile 65535;
#
#          
events
{
    #      ,use [ kqueue | rtsig | epoll | /dev/poll | select | poll ]; epoll   Linux 2.6             I/O  ,    FreeBSD  ,  kqueue  .
    use epoll;
    #         （     =   *   ）
    worker_connections 65535;
}
#
#  http   
http
{
    include mime.types; #             
    default_type application/octet-stream; #      
    #charset utf-8; #    
    server_names_hash_bucket_size 128; #      hash   
    client_header_buffer_size 32k; #        
    large_client_header_buffers 4 64k; #     
    client_max_body_size 8m; #     
    
    #         ,       ,    .
    autoindex on; #     
    autoindex_exact_size on; #           on,          ,   bytes   off ,          ,   kB  MB  GB
    autoindex_localtime on; #           off,        GMT     on ,                
    
    sendfile on; #           ,sendfile    nginx    sendfile       ,         on,             IO     ,    off,        I/O    ,       .  ：              off.
    tcp_nopush on; #       
    tcp_nodelay on; #       
    
    keepalive_timeout 120; # (  s)                ,                 
    
    # FastCGI              ：      ,      .             .
    fastcgi_connect_timeout 300;
    fastcgi_send_timeout 300;
    fastcgi_read_timeout 300;
    fastcgi_buffer_size 64k;
    fastcgi_buffers 4 64k;
    fastcgi_busy_buffers_size 128k;
    fastcgi_temp_file_write_size 128k;
    
    # gzip    
    gzip on; #  gzip    
    gzip_min_length 1k; #             ,      header  content-length   .   0,           .       1k    ,  1k       
    gzip_buffers 4 16k; #    4    16k            ,                       gzip    
    gzip_http_version 1.1; #    （  1.1,            gzip  .     squid2.5   1.0）
    gzip_comp_level 2; #    .1     ,     .9     ,    cpu  ,      ,         ,     ,     
    gzip_types text/plain application/x-javascript text/css application/xml;
    #    ,       text/html,          ,         ,      warn.
    gzip_vary on;#                 gzip     .  : squid    nginx     
    
    #    IP          
    #limit_zone crawler $binary_remote_addr 10m;
    
    ##upstream     ,      (    )##
    
    #       
    server
    {
        #     
        listen 80;
        #        ,     
        server_name ably.com;
        # HTTP      HTTPS
        rewrite ^(.*) https://$server_name$1 permanent;
    }
    
    server
    {
        #      HTTPS
        listen 443 ssl;
        server_name ably.com;
        
        #       
        ssl_certificate      C:\WebServer\Certs\certificate.crt;
        ssl_certificate_key  C:\WebServer\Certs\private.key;
        ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;
        ssl_protocols SSLv2 SSLv3 TLSv1;
        ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
        ssl_prefer_server_ciphers  on;
    
        index index.html index.htm index.php;
        root /data/www/;
        location ~ .*\.(php|php5)?$
        {
            fastcgi_pass 127.0.0.1:9000;
            fastcgi_index index.php;
            include fastcgi.conf;
        }
        
        #         ，        
        location /oauth/{
            proxy_pass https://localhost:13580/oauth/;
            proxy_set_header HOST $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
        
        #         
        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
            expires 10d;
        }
        
        # JS CSS      
        location ~ .*\.(js|css)?$ {
            expires 1h;
        }

        #       
        log_format access '$remote_addr - $remote_user [$time_local] "$request" '
        '$status $body_bytes_sent "$http_referer" '
        '"$http_user_agent" $http_x_forwarded_for';
        #             
        access_log /var/log/nginx/access.log access;
        
        #     Nginx     .StubStatus      Nginx            ，        ，   Nginx             
        location /NginxStatus {
            stub_status on;
            access_log on;
            auth_basic "NginxStatus";
            auth_basic_user_file conf/htpasswd;
            #htpasswd        apache   htpasswd     .
        }
    }
}

events
{
    use epoll;
    worker_connections 65535;
}
http
{
    ##upstream     ,      ##
    #    1:  .                      ,           ,         ,         
    upstream webhost {
        server 192.168.0.5:6666 ;
        server 192.168.0.7:6666 ;
    }
    #    2:weight(  ).            .             
    upstream webhost {
        server 192.168.0.5:6666 weight=2;
        server 192.168.0.7:6666 weight=3;
    }
    #    3:ip_hash.        IP hash    ,       IP              ,            session    
    upstream webhost {
        ip_hash;
        server 192.168.0.5:6666 ;
        server 192.168.0.7:6666 ;
    }
    #    4:url_hash(        ).      url hash       ,   url           ,                 .Nginx      url_hash ,            ,    Nginx  hash   
    upstream webhost {
        server 192.168.0.5:6666 ;
        server 192.168.0.7:6666 ;
        hash $request_uri;
    }
    #    5:fair(        ).                  .                            ,                    ,          .Nginx      fair ,            ,    Nginx upstream_fair  
    #
    #       (      3:ip_hash)
    server
    {
        listen 80;
        server_name mongo.demo.com;
        #  "/"       
        location / {
            proxy_pass http://webhost;
            proxy_redirect off;
            proxy_set_header X-Real-IP $remote_addr;
            #   Web       X-Forwarded-For      IP
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            #            ,  .
            proxy_set_header Host $host;
            client_max_body_size 10m; #                
            client_body_buffer_size 128k; #                  ,
            proxy_connect_timeout 90; #nginx            (      )
            proxy_send_timeout 90; #           (      )
            proxy_read_timeout 90; #     ,         (      )
            proxy_buffer_size 4k; #       （nginx）             
            proxy_buffers 4 32k; #proxy_buffers   ,     32k     
            proxy_busy_buffers_size 64k; #        （proxy_buffers*2）
            proxy_temp_file_write_size 64k;
            #         ,     ,  upstream    
        }
    }
}