#参数都有所调整.目的是解决代理过程中出现的一些502 499错误   

#Add expires header for static content   location ~* \.(jpg|jpeg|gif|png|swf)$ {     if (-f $request_filename) {       root /date/wwwroot/linuxtone/;       expires      1d;       break;      }   }     log_format  access  '$remote_addr - $remote_user [$time_local] "$request" '                         '$status $body_bytes_sent "$http_referer" '                         '"$http_user_agent" $http_x_forwarded_for';    access_log  /exp/nginxlogs/bbs.linuxtone_access.log  access;  }

注:第二种代理方式

nginx 处理下图片,html等静态的东西.其它动态由apache处理.因此apache也需要做一些参数调整.

设置图片等过期时间.缓解请求.

如果源与nginx在同一台机器建议使用如下方法:

location / {      proxy_pass  http://192.168.1.4:8099/;      proxy_redirect default ;      }

针对不同的目录进行代理把下面的配置放到根目录代理的上面

        location /linuxtone/ {              proxy_pass  http://192.168.1.4:8099/linuxtone/;              proxy_redirect default ;         }

4 源配置

<VirtualHost 192.168.1.4:8099>    ServerAdmin liuyu105#gmail.com    DocumentRoot /date/wwwroot/linuxtone    ServerName bbs.linuxtone.com    ErrorLog logs/linuxtone_error_log   CustomLog "|/usr/local/sbin/cronolog logs/linuxtone_access_log.%Y%m%d" combined</VirtualHost>

 第3部分:源的优化

1 apache-mpm.conf

<IfModule mpm_prefork_module>    StartServers          15    MinSpareServers       15    MaxSpareServers      30    ServerLimit         2536    MaxClients          2048    MaxRequestsPerChild   1500</IfModule>

2 apache-keepalive

Timeout 120  #与nginx的保持一至KeepAlive OnMaxKeepAliveRequests 400KeepAliveTimeout 7

第4部分:PHP的优化

优化一:将PHP由之前的xcache换成eaccelerator

1 安装

wget http://bart.eaccelerator.net/source/0.9.5.3/eaccelerator-0.9.5.3.tar.bz2tar jxvf eaccelerator-0.9.5.3.tar.bz2cd eaccelerator-0.9.5.3//usr/local/webserver/php/bin/phpize./configure --enable-eaccelerator=shared --with-php-config=/usr/local/php5/bin/php-configmakemake install

注:PHP路径以安装为准!

2 配置

sed -i 's#extension_dir = "./"#extension_dir = "/usr/local/php5/lib/php/extensions/no-debug-non-zts-20060613/"\nextension = "memcache.so"\n#' /etc/php.inised -i 's#output_buffering = Off#output_buffering = On#' /etc/php.inised -i "s#; always_populate_raw_post_data = On#always_populate_raw_post_data = On#g" /etc/php.ini

配置eAccelerator加速PHP：

mkdir -p /usr/local/webserver/eaccelerator_cachevi /etc/php.ini

按shift+g键跳到配置文件的最末尾，加上以下配置信息：