Nginx负载均衡搭建胜过Apache十倍(3)

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  /data1/logs/access.log  access;
}

server
{
listen 80;
server_name  www.s135.com;
index index.html index.htm index.php;
root  /data0/htdocs/www;

location ~ .*\.(php|php5)?$
{
#fastcgi_pass  unix:/tmp/php-cgi.sock;
fastcgi_pass  127.0.0.1:9000;
fastcgi_index index.php;
include fcgi.conf;
}

log_format  wwwlogs  '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" $http_x_forwarded_for';
access_log  /data1/logs/wwwlogs.log  wwwlogs;
}

server
{
listen  80;
server_name  status.blog.s135.com;

location / {
stub_status on;
access_log off;
}
}
}

②、在/usr/local/webserver/nginx/conf/目录中创建fcgi.conf文件：

vi /usr/local/webserver/nginx/conf/fcgi.conf

输入以下内容：

fastcgi_param  GATEWAY_INTERFACE  CGI/1.1; fastcgi_param  SERVER_SOFTWARE  nginx; fastcgi_param  QUERY_STRING $query_string; fastcgi_param  REQUEST_METHOD $request_method; fastcgi_param  CONTENT_TYPE $content_type; fastcgi_param  CONTENT_LENGTH $content_length; fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name; fastcgi_param  SCRIPT_NAME  $fastcgi_script_name; fastcgi_param  REQUEST_URI  $request_uri; fastcgi_param  DOCUMENT_URI $document_uri; fastcgi_param  DOCUMENT_ROOT  $document_root; fastcgi_param  SERVER_PROTOCOL  $server_protocol; fastcgi_param  REMOTE_ADDR  $remote_addr; fastcgi_param  REMOTE_PORT  $remote_port; fastcgi_param  SERVER_ADDR  $server_addr; fastcgi_param  SERVER_PORT  $server_port; fastcgi_param  SERVER_NAME  $server_name; # PHP only, required if PHP was built with --enable-force-cgi-redirect fastcgi_param  REDIRECT_STATUS  200;

5、启动Nginx

ulimit -SHn 51200 /usr/local/webserver/nginx/sbin/nginx

四、配置开机自动启动Nginx + PHP

vi /etc/rc.local

在末尾增加以下内容：

ulimit -SHn 51200 /usr/local/webserver/php/sbin/php-fpm start /usr/local/webserver/nginx/sbin/nginx

五、优化Linux内核参数

vi /etc/sysctl.conf

在末尾增加以下内容：

net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_time = 300 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.ip_local_port_range = 5000  65000

使配置立即生效：

/sbin/sysctl -p

六、在不停止Nginx服务的情况下平滑变更Nginx配置

(1)、修改/usr/local/webserver/nginx/conf/nginx.conf配置文件后，请执行以下命令检查配置文件是否正确：

/usr/local/webserver/nginx/sbin/nginx -t

如果屏幕显示以下两行信息，说明配置文件正确：

the configuration file /usr/local/webserver/nginx/conf/nginx.conf syntax is ok the configuration file /usr/local/webserver/nginx/conf/nginx.conf was tested successfully

(2)、这时，输入以下命令查看Nginx主进程号：

ps -ef | grep "nginx: master process" | grep -v "grep" | awk -F ' ' '{print $2}'

屏幕显示的即为Nginx主进程号，例如：

6302

这时，执行以下命令即可使修改过的Nginx配置文件生效：

kill -HUP 6302

或者无需这么麻烦，找到Nginx的Pid文件：

kill -HUP `cat /usr/local/webserver/nginx/nginx.pid`