日期:2012-04-26 23:39:00  来源:本站整理

搭建nginx负载均衡服务器[服务器安全]

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  Nginx的反向代理功效配置一个nginx负载均衡服务器,后端有三个服务节点,供应web服务.

  搭建环境:

  系统redhat系统5.4

  (1)搭建前预备:

  四台linux主机

  DNS:192.168.1.150

  web:192.168.1.121

  web:192.168.1.125

  web:192.168.1.126

  nginx:192.168.1.120 用nginx搭建负载均衡

  注明:

  在这里主要介绍nginx利用,以上几台请参考别的配置文件来做.

  再要搭建nginx负载时首先做好域名解析:注明:其他三个web不需求做什么域名解析,

  A记录:www.test.com

  反向记录:192.168.1.120

  一:目前开始安装nginx

  (1)安装依靠包:

  gcc,openssl-devel,pcre-devl,zlib-devel软件库.

  (2)安装Nginx所需的pcre-devel库

  tar -zxvf pcre-8.02.tar.gz

  cd pcre-8.02

  ./configure

  make

  make install

  (3)安装Nginx

  tar -zxvf nginx-0.7.65.tar.gz -C /usr/src/

  cd nginx-0.7.65

  ./configure --with-http_gzip_static_module --with-http_stub_status_module --prefix=/usr/local/nginx

  make

  make install

  查抄Nginx配置文件能否正常:www.110hack.com

  /opt/nginx/sbin/nginx -t

  the configuration file /opt/nginx/conf/nginx.conf syntax is ok

  configuration file /opt/nginx/conf/nginx.conf test is successful

  启动Nginx服务:

  /usr/local/nginx/sbin/nginx

  关闭Nginx服务:

  kill xxx pid号

  到此Nginx安装完成

  (4)配置主配置文件

  vim /usr/local/nginx/conf/nginx.conf

  user nobody;

  worker_processes 1;

  #error_log logs/error.log;

  #error_log logs/error.log notice;

  error_log logs/error.log debug;

  pid logs/nginx.pid;

  events {

  use epoll;

  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 6 16k;

  gzip_http_version 1.1;

  gzip_comp_level 2;

  gzip_types text/plain application/x-javascript text/css application/xml;

  gzip_vary on;

  # server {

  # listen 80;

  # server_name localhost;

  #charset koi8-r;

  #access_log logs/host.access.log main;

  #location / {

  # root html;

  # 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;

  # 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 ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;

  # ssl_prefer_server_ciphers on;

  # location / {

  # root html;

  # index index.html index.htm;

  # }

  #}

  http

  {

  upstream www.test.com {

  server 192.168.1.125:80 weight=3 max_fails=3 fail_timeout=20s;

  server 192.168.1.126:80 weight=1 max_fails=3 fail_timeout=20s;

  server 192.168.1.121:80 weight=5 max_fails=3 fail_timeout=20s;

  }

  server

  {

  listen 80;

  server_name www.test.com;

  index index.htm index.html;

  #root /web/wwwroot;

  location / {

  proxy_pass http://www.test.com;

  proxy_next_upstream http_500 http_502 http_503 error timeout invalid_header;

  proxy_set_header Host $host;

  proxy_set_header X-Real-IP $remote_addr;

  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

  include proxy.conf;

  }

  log_format blog_test_com '$remote_addr - $remote_user [$time_local] $request '

  '"$status" $body_bytes_sent "$http_referer" '

  '"$http_user_agent" "$http_x_forwarded_for"';


  access_log logs/blog_test_com;

  }

  }

  (5)配置proxy.conf文件

  vim /usr/local/nginx/conf/proxy.conf

  proxy_redirect off;

  proxy_set_header Host $host;

  proxy_set_header X-Real-IP $remote_addr;

  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

  client_body_buffer_size 128k;

  proxy_connect_timeout 90;

  proxy_send_timeout 90;

  proxy_read_timeout 90;

  proxy_buffer_size 4k;

  proxy_buffers 6 32k;

  proxy_busy_buffers_size 64k;

  proxy_temp_file_write_size 64k;

  :wq 保存

  注明:到此nginx负载均衡已搭建完成,

  测试:http://www.test.com 就看可以拜候到


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