叁二伍

user www www;

worker_processes 10;

error_log	/var/logs/nginx_error.log	crit;

pid	/tmp/pid/nginx.d;

worker_rlimit_nofile	51200;

events{

	use epoll;

	worker_connections	51200;

}

http{

	include		mime.types;

	default_type	application/octet-stream;

	server_name_hash_bucket_size	128;

	client_header_buffer_size	32k;

	large_client_header_buffers	4	32k;

	sendfile	on;

	keepalive_timeout	65;

	tcp_nodelay	on;

	fastcgi_connect_timeout	300;

	fastcgi_send_timeout	300;

	fastcgi_read_timeout	300;

	fastcgi_buffer_size	64k;

	fastcgi_buffers		4	64k;

	fastcgi_busy_buffers_size	128k;

	fastcgi_temp_file_write_size	128k;

	gzip	on;

	gzip_min_length	1k;

	gzip_buffers	4	16k;

	gzip_http_version	1.1;

	gzip_comp_level		2;

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

	gzip_vary	on;

	#允许客戶端请求的最大单个文件字节数

	client_max_body_size	300m;

	#缓冲区代理缓冲用戶端請求的最大字节数,可以理解为先保存到本地再传给用戶

	client_body_buffer_size	128;

	#跟后端服务器连接的超时时间，发起握手等候响应超时时间

	proxy_connect_timeout		600;

	#连接成功后，等候后端服务器响应时间，其实已经进入后端的队列之中等候处理

	proxy_read_timeout		600;

	#后端服务器数据回传时间，就是在规定时间内后端服务器必须传完所有的数据

	proxy_send_timeout		600;

	#代理请求缓存区，这个缓存区间会保存用户的头信息以供Nginx进行规则处理，一般只要能保存下头信息即可

	proxy_buffer_size	16k;

	#同上 告诉Nginx保存单个用户的几个buffer最大用多大空间

	proxy_buffers		4	32k;

	#如果系统很忙的时候可以申请更大的proxy_buffers官方推荐*2

	proxy_busy_buffers_size	64k;

	#proxy缓存临时文件大小

	proxy_temp_file_write_size	64k;

	upstream	php_server_pool {

		server	192.168.1.10:80	weight=4	max_fails=2	fail_timeout=30s;

		server	192.168.1.12:80	weight=4	max_fails=2	fail_timeout=30s;

		server	192.168.1.12:80	weight=2	max_fails=2	fail_timeout=30s;

	}

	upstream	message_server_pool {

		server	192.168.1.13:3245;

		server	192.168.1.14:3245	down;

	}

	upstream	bbs_server_pool {

		server	192.168.1.15:80	weight=1	max_fails=2	fail_timeout=30s;

		server	192.168.1.16:80	weight=1	max_fails=2	fail_timeout=30s;

		server	192.168.1.17:80	weight=1	max_fails=2	fail_timeout=30s;

		server	192.168.1.18:80	weight=1	max_fails=2	fail_timeout=30s;

	}

	#第一个虚拟主机，反向代理php_server_pool这组服务器

	server

	{

		listen	80;

		server_name	www.yourdomain.com;

		location /

		{

			#如果后端的服务器返回502、504、执行超时等错误，自动将请求转发到upstream负载均衡池中的另一台服务器，实现故障转移。

			proxy_next_upstream	http_502 http_504 error	timeout	invalid_header;

			proxy_pass	http://php_server_pool;

			proxy_set_header	Host	www.yourdomain.com;

			proxy_set_header	X-Forwarder-For	$remote_addr;

		}

		access_log	/var/logs/www.yourdomain.com_access.log;

	}

	#第二个虚拟主机

	server

	{

		listen	80;

		server_name	www1.yourdomain.com;

		#访问http://www1.yourdomain.com/message/***地址，反向代理message_server_pool这组服务器

		location	/message/

		{

			proxy_pass	http://message_server_pool;

			proxy_set_header Host	$host;

		}

		#访问除了/message/之外的http://www1.yourdomain.com/***地址，反向代理php_server_pool这组服务器

		location /

		{

			proxy_pass	http://php_server_pool;

			proxy_set_header	Host	$host;

			proxy_set_header  X-Forwarded-For	$remote	addr;

		}

		access_log	/var/logs/message.yourdomain.com_access.log

	}

	#第三个虚拟主机

	server{

		listen 80;

		server_name	bbs.yourdomain.com	*.bbs.yourdomain.com;

		location /

		{

			proxy_pass	http://bbs_server_pool;

			proxy_set_header	Host	$host;

			proxy_set_header	X-Forwarded-For	$remote_addr;

		}

		access_log	off;

	}

}