Nginx服务器配置文件讲解

记录一下，省得每次都到处找。 几个关键地方都有注释，基本看得懂了
nginx.conf


user  nobody nobody;
worker_processes  4; #根据cpu个数来确定 #error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
pid        logs/nginx.pid;
worker_rlimit_nofile 65535;
events {
    use epoll;
    worker_connections  65535;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
    #access_log  logs/access.log  main;
    access_log  off;
    server_names_hash_bucket_size  128;
    client_header_buffer_size      32k;
    large_client_header_buffers    4 32k;
    client_max_body_size           8m;
    sendfile        on;
    tcp_nopush      on;
    keepalive_timeout  60;
    tcp_nodelay on;
    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;
    fastcgi_intercept_errors     on; #php文件不存在也返回404，无此参数会返回空白页
    gzip on;
    gzip_static        on; #启用此参数nginx编译时需要--with-http_gzip_static_module，用于cdn。否则cdn不能缓存
    gzip_disable       "MSIE [1-6]\.|Baiduspider"; #IE6不支持压缩，另外百度蜘蛛比较2，不会自解压
    gzip_proxied       any; #当nginx作为反向代理时，无条件压缩
    gzip_min_length    1k;
    gzip_buffers       4 16k;
    gzip_http_version  1.1;
    gzip_comp_level    6;
    gzip_types         text/plain text/css application/json application/x-Javascript text/xml application/xml application/xml+rss text/Javascript;
    gzip_vary on;
    server {
        listen       80;
        server_name  xs8.cn www.xs8.cn;
        if ($host != 'www.xs8.cn') {
            rewrite ^/(.*)$ http://www.xs8.cn/$1 permanent;
        }
        #以下仅用于CI框架
        if (!-f $request_filename) {
            rewrite ^/(.*)$ /index.php?$1 last;
        }
        index index.html index.htm index.php;
        root  /data/www/xs8.cn;
        location ~ .*\.(php|php5)?$ {      
            include fcgi.conf;
        }
        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|flv)$ {
          #valid_referers none blocked server_names; #防盗链时打开注释
          #if ($invalid_referer) {return 403;} #防盗链时打开注释
          expires      30d;
        }
        location ~ .*\.(js|css)?$ {
            expires      1h;
        }
        error_page    404    http://www.xs8.cn/;
        access_log    off;
    }
}

fcgi.conf

fastcgi_pass  127.0.0.1:9000;
fastcgi_index index.php; if ($request_filename ~* (.*)\.php) {
    set $php_url $1;
}
if (!-e $php_url.php) {
    return 403;
}
fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx;
fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;
fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;
fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;
# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param  REDIRECT_STATUS    200;

nginx启动、停止、重载脚本
/etc/init.d/nginx

#!/bin/bash
# nginx Startup script for the Nginx HTTP Server
# this script create it by jackbillow at 2007.10.15.
# it is v.0.0.2 version.
# if you find any errors on this scripts,please contact jackbillow.
# and send mail to jackbillow at gmail dot com.
#
# chkconfig: - 85 15
# description: Nginx is a high-performance web and proxy server.
#              It has a lot of features, but it's not for everyone.
# processname: nginx
# pidfile: /var/run/nginx.pid
# config: /usr/local/nginx/conf/nginx.conf nginxd=/usr/local/nginx/sbin/nginx
nginx_cOnfig=/usr/local/nginx/conf/nginx.conf
nginx_pid=/usr/local/nginx/logs/nginx.pid
RETVAL=0
prog="nginx"
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0
[ -x $nginxd ] || exit 0
# Start nginx daemons functions.
start() {
if [ -e $nginx_pid ];then
   echo "nginx already running...."
   exit 1
fi
   echo -n $"Starting $prog: "
   daemon $nginxd -c ${nginx_config}
   RETVAL=$?
   echo
   [ $RETVAL = 0 ] && touch $nginx_pid
   return $RETVAL
}
# Stop nginx daemons functions.
stop() {
        echo -n $"Stopping $prog: "
        killproc $nginxd
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && rm -f $nginx_pid
}
# reload nginx service functions.
reload() {
    echo -n $"Reloading $prog: "
    #kill -HUP `cat ${nginx_pid}`
    killproc $nginxd -HUP
    RETVAL=$?
    echo
}
# See how we were called.
case "$1" in
start)
        start
        ;;
stop)
        stop
        ;;
reload)
        reload
        ;;
restart)
        stop
        start
        ;;
status)
        status $prog
        RETVAL=$?
        ;;
*)
        echo $"Usage: $prog {start|stop|restart|reload|status|help}"
        exit 1
esac
exit $RETVAL
安装自启动 chmod +x /etc/init.d/nginx
/sbin/chkconfig nginx on
/sbin/chkconfig -list nginx
用法 service nginx start
service nginx stop
service nginx restart
service nginx reload
/etc/init.d/nginx start
/etc/init.d/nginx stop
/etc/init.d/nginx restart
/etc/init.d/nginx reload