nginx 防盗链+动静分离+反向代理+缓存+负载均衡

修改nginx/conf/nginx.conf，修改完后如下：

user  www www;worker_processes  1;#error_log  logs/error.log;#error_log  logs/error.log  notice;#error_log  logs/error.log  info;#pid        logs/nginx.pid;events {    worker_connections  1024;}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;    sendfile        on;    #tcp_nopush     on;    #keepalive_timeout  0;    keepalive_timeout  65;    gzip  on;    gzip_min_length 1k;    gzip_buffers 16 64k;    gzip_http_version 1.1;    gzip_comp_level 9;    gzip_types text/plain application/x-javascript text/css application/xml;    gzip_vary on;upstream webservers{server 192.168.1.82;server 192.168.1.88;}proxy_cache_path /data/nginx/cache/webserver levels=1:2 keys_zone=webserver:20m max_size=1g;server{        listen       80;        server_name  song.com;index index.html idnex.htm;root /data0/htdocs/www;#....................................................防盗链............... #location ~ .*\.(|jpg|gif|png)$ {#root /data0/htdocs/www/;                #valid_referers none  blocked *.demo.com demo.com 192.168.1.75;                #if ($invalid_referer){                        #rewrite ^/ http://www.765h.com/error.html;                        # return 403;                #}#}#...................................................防盗链end....................#......................................................模块缓存# location /download {#root /data0/htdocs/www/;  #accesskey             on;  #       accesskey_hashmethod  md5;  #accesskey_arg         "key";  #accesskey_signature   "mypass$remote_addr";#}#................................................................................             #add_header X-Via $server_addr;             #add_header X-Cache $upstream_cache_status;#........................................................动静分离..................        location ~ (\.php)$ {                   proxy_pass http://webservers;        }#......................................................end 动静分离................ #...................................................页面缓存        #location / {         #  root   /data0/htdocs/www;          # index  index.html index.php  index.htm;   #proxy_pass      http://webservers;         # proxy_set_header  X-Real-IP  $remote_addr;          # proxy_cache webserver;          #proxy_cache_valid 200 10m;#.........................................................end 页面缓存#location /img/ {    #root /data/img/;      #valid_referers none blocked *.demo.com demo.com;           #if ($invalid_referer) {          #         rewrite  ^/  http://www.demo.com/images/error.gif;         #          #return   403;   # }#}        #error_page  404              /404.html;        # redirect server error pages to the static page /50x.html        #        error_page   500 502 503 504  /50x.html;        location = /50x.html {            root   /data0/htdocs/www;        }        # proxy the PHP scripts to Apache listening on 127.0.0.1:80        #        #location ~ \.php$ {        #    proxy_pass   http://127.0.0.1;        #}        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000        #        #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;        #}        # deny access to .htaccess files, if Apache's document root        # concurs with nginx's one        #        #location ~ /\.ht {        #    deny  all;        #}    }    # another virtual host using mix of IP-, name-, and port-based configuration    #    #server {    #    listen       8000;    #    listen       somename:8080;    #    server_name  somename  alias  another.alias;    #    location / {    #        root   html;    #        index  index.html index.htm;    #    }    #}    # HTTPS server    #    #server {    #    listen       443;    #    server_name  localhost;    #    ssl                  on;    #    ssl_certificate      cert.pem;    #    ssl_certificate_key  cert.key;    #    ssl_session_timeout  5m;    #    ssl_protocols  SSLv2 SSLv3 TLSv1;    #    ssl_ciphers  HIGH:!aNULL:!MD5;    #    ssl_prefer_server_ciphers   on;    #    location / {    #        root   html;    #        index  index.html index.htm;    #    }    }