nginx 代理配置文件实例

安装NGINX前要先安装PCRE正则表达式库:

./configure --prefix=/usr/local/pcre 出现以下错误  (一般./configure即可, 笔者这里是直接./configure命令)
configure: error: You need a C++ compiler for C++ support.  (解决办法: yum install -y gcc gcc-c++)
make
make install

 

下面开始安装NGINX:

安装NGINX:
yum install libtool
yum install zlib zlib-devel

yum install openssl

./configure --prefix=/usr/local/nginx --with-http_stub_status_module
make
make install

检查是否安装成功: 
cd  /usr/local/nginx/sbin
./nginx -t
./nginx: error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory
从错误看出是缺少lib文件导致，进一步查看下:
ldd $(which /usr/local/nginx/sbin/nginx)

可以看出 libpcre.so.1 => not found 并没有找到，进入/lib目录中手动链接下(这里的/lib目录指的是系统的根目录下面的lib目录)
32位系统 [root@mysqlslave lib]# ln -s /usr/local/lib/libpcre.so.1 /lib
64位系统 [root@mysqlslave lib]# ln -s /usr/local/lib/libpcre.so.1 /lib64

结果显示：
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

启动nginx:
cd /usr/local/nginx/sbin 目录下面 输入 ./nginx  启动nginx
ps -ef|grep nginx

netstat -nap|grep :80   //查看80端口被哪个进程占用
service iptables stop   //把防火墙打开,否则nginx不能被访问

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安装完nginx后需要配置监听的IP地址和端口，笔者这里是针对memcached+tomcat6做的配置，进入nginx的安装目录，笔者这里是/usr/local/nginx/conf这个目录，打开nginx.conf这个文件做如下修改:

[root@mysqlmaster conf]# less nginx.conf

#user  nobody;

#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;

pid         /usr/local/nginx/logs/nginx.pid;

events {

    use epoll;

    worker_connections  1024;

}

http {

    include       mime.types;

    default_type  application/octet-stream;

    

    include       /usr/local/nginx/conf/proxy.conf;   #一定要指向代理文件

    #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;

    tcp_nopush     on;

    #keepalive_timeout  0;

    keepalive_timeout  65;

    #gzip  on;

    upstream backend {

        #    ip_hash;

        server 192.168.0.93:8080;

        server 192.168.0.92:8080;

        #jvm_route $cookie_JSESSIONID|sessionid reverse;

    }

    server {

        listen       80;

        server_name  192.168.0.93;

        #charset koi8-r;

        charset utf-8;

        #access_log  logs/host.access.log  main;

        location / {

            root   html;

            index  index.html index.htm;

            proxy_pass http://backend;

            #proxy_redirect default;

            proxy_set_header XReal-IP $remote_addr;

            proxy_connect_timeout 10;

            #client_max_body_size 100m;

        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html

        #

        

        location ~^/(WEB-INF)/ {

           deny all;

        }

        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;

    #    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;

    #    }

    #}

}

还需要在/usr/local/nginx/conf目录下手动建立proxy.conf文件，内容如下:

proxy_redirect          off;

proxy_set_header        Host $host;

proxy_set_header        X-Real-IP $remote_addr;   #获取真实IP

#proxy_set_header       X-Forwarded-For   $proxy_add_x_forwarded_for; #获取代理者的真实ip

client_max_body_size    10m;

client_body_buffer_size 128k;

proxy_connect_timeout   90;

proxy_send_timeout      90;

proxy_read_timeout      90;

proxy_buffer_size       4k;

proxy_buffers           4 32k;

proxy_busy_buffers_size 64k;

proxy_temp_file_write_size 64k;

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最后的/usr/local/nginx/conf目录下文件截图如下:

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最后再多提一句日志的问题，nginx的默认日志目录为/usr/local/nginx/logs目录，这个目录下面有3个文件，分别是access.log,error.log和nginx.pid，其中error.log是错误日志，如果在启动nginx时遇到错误可以到这里来查看错误问题。

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http://developer.51cto.com/art/201003/190944.htm

http://www.cnblogs.com/netflu/archive/2010/01/07/1641142.html

http://developer.51cto.com/art/201003/190944.htm