nginx.conf配置整理筆記（反向代理、緩存、均衡負載）更新中

#user  nobody;
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;
	upstream webservs {	#均衡負載的server組
		#ip_hash;						#根據客戶端的ip進行hash分配到相應的server，從而保證同一個ip請求分配到相同主機，可以解決跨服務器session共享問題
		server server1ip weight=1 max_fails=2 fail_timeout=2;  #weight表示權重，fails這些表示無法連接到嘗試的次數和時間
		server server2ip weight=1 max_fails=2 fail_timeout=2;
		#server 127.0.0.1:8080 backup;		#這個是顯示錯誤頁面的server，如果這裏使用到了ip_hash，就不能使用這一項，否則啓動報錯
	}

	server {	#顯示錯誤頁面的server
		listen 8080;
		server_name localhost;
		root /web/errorpages;
		index index.html;
	}
	
	proxy_cache_path /nginx/cache/first levels=1:2:1 keys_zone=first:20m max_size=1G; #緩存
	
    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
	
	#給http頭部加上兩個變量
	add_header X-Via $server_addr;	#顯示服務器地址
	add_header X-Cache $upstream_cache_status;	#顯示緩存是否命中	

#        location / {
#            root   html;
#            index  index.html index.htm;
#        }
	location / {       #在這裏轉發請求到均衡負載組的server
            proxy_pass http://webservs/;
            proxy_set_header X-real-IP $remote_addr;
        }

	

	location ~* ^/forum {
		proxy_pass http://serverip;
		proxy_set_header X-real-IP $remote_addr;	#轉發給後端的時候，後端都有一個獨特的首部叫做X-real-IP，這個存放真正的客戶端請求ip
		proxy_cache first;
		proxy_cache_valid 10m;
	}
	location /forum {
		root /web;
		index index.html index.htm;
	}

        #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   html;
        }

        # 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 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

自定義反向代理的404頁面

#反向代理並設置404自定義頁面
        server {
                listen       80;
                server_name  域名;


        #charset koi8-r;

                

                proxy_set_header X-Forwarded-Host $host;
                proxy_set_header X-Forwarded-Server $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $host; #攜帶真實的請求域名
                proxy_set_header X-real-IP $remote_addr;        #轉發給後端的時候，後端都有一個獨特的首部叫做X-real-IP，這個存放真正的客戶端請求ip              

                proxy_intercept_errors  on;
                recursive_error_pages   on;

                location / {
                        proxy_pass server地址;
                        proxy_connect_timeout 600;
                        proxy_read_timeout 600;
                        error_page 404 /404.html;
                }
                location /404.html {
                        root /nginx/page;
                        index index.html index.htm;

                }

        }