...
//例1：多域名跳转
server
{
    ...
    listen 80;
    server_name jump.myweb.name jump.myweb.info;
    if ($host ~ myweb\.info)
    {
        rewrite ^(.*) http://jump.myweb.name$1 permanent;
    }
    ...
}
 
//例2：三级域名跳转
server
{
    ...
    listen 80;
    server_name jump1.myweb.name jump2.myweb.name;
    if ($host ~* (.*)\.myweb\.name)
    {
        rewrite ^(.*) http://jump.myweb.name$1 permanent;
        break;
    }
    ...
}

...
server
{
    ...
    listen 80;
    server_name mirror1.myweb.name;
    rewrite ^(.*) http://jump1.myweb.name$1 last;
    break;
}
server
{
    ...
    listen 81;
    server_name mirror2.myweb.name;
    rewrite ^(.*) http://jump2.myweb.name$1 last;
    break;
}

...
server
{
    ...
    listen 80;
    server_name jump.myweb.name;
    location ^~ /source1
    {
        ...
        rewrite ^/source1(.*) http://jump.myweb.name/websrc2$1 last;
        break;
    }
    location ^~ /source2
    {
        ...
        rewrite ^/source2(.*) http://jump.myweb.name/websrc2$1 last;
        break;
    }
}

server
{
    ...
    listen 80;
    server_name bbs.myweb.name;
    rewrite ^(.*) http://www.myweb.name/bbs$1 last;
    break;
}
server
{
    ...
    listen 81;
    server_name home.myweb.name;
    rewrite ^(.*) http://www.myweb.name/home$1 last;
    break;
}

server
{
    ...
    listen 81;
    server_name www.myweb.name;
    location ^~ /bbs
    {
        ...
        //这里： -d 目录； -f 文件；-e 文件或目录
        if (-d $request_filename)
        {
            rewrite ^/(.*)([^/]$ http://$host/$1$2/ permanent;
        }
    }
}

server
{
    ...
    listen 80;
    server_name www.myweb.com;
    location ~* ^.+\.(gif|jpg|png|swf|flv|rar|zip)$
    {
        ...
        valid_refers none blocked server_names  *.myweb.name;
        if ($invalid_referer)
        {
            rewrite ^/ http://www.myweb.com/images/forbidden.png;
        }
    }
}

    ...
    location /file/
    {
        ...
        root /server/file;
        valid_refers none blocked server_names  *.myweb.name;
        if ($invalid_referer)
        {
            rewrite ^/ http://www.myweb.com/images/forbidden.png;
        }
    }

user  zhangy users;
worker_processes 10;
error_log  /var/vlogs/nginx_error.log  crit;
pid        /var/vlogs/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 65535;
events
{
	use epoll;
	worker_connections 65535;
}
http
{
	include       mime.types;
	default_type  application/octet-stream;
	#charset  gb2312;
	server_names_hash_bucket_size 128;
	client_header_buffer_size 32k;
	large_client_header_buffers 4 32k;
	client_max_body_size 8m;
	sendfile on;
	tcp_nopush     on;
	keepalive_timeout 60;
 
	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;
	//============
	client_body_buffer_size  512k;
	proxy_connect_timeout    5;
	proxy_read_timeout       60;
	proxy_send_timeout       5;
	proxy_buffer_size        16k;
	proxy_buffers            4 64k;
	proxy_busy_buffers_size 128k;
	proxy_temp_file_write_size 128k;
	proxy_temp_path   /usr/local/nginx/proxy_temp;
	/*levels设置目录层次
	keys_zone设置缓存名字和共享内存大小
	inactive在指定时间内没人访问则被删除在这里是1天
	max_size最大缓存空间*/
	proxy_cache_path /usr/local/nginx/proxy_cache levels=1:2 keys_zone=content:20m inactive=1d max_size=100m;
	//============等号中间要加的，关键只要加上proxy_cache_path
 
	gzip on;
	gzip_min_length  1k;
	gzip_buffers     4 16k;
	gzip_http_version 1.0;
	gzip_comp_level 2;
	gzip_types       text/plain application/x-javascript text/css application/xml;
	gzip_vary on;
 
	upstream myselfxtajmd {
		server 127.0.0.1:10002;
		server 127.0.0.1:10001 weight=5;
	}
 
	server
	{
		listen       10000;
		server_name  localhost;
		index index.html index.htm index.php;
		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  /var/log/test.log  access;
 
		location /
			{
			proxy_cache content; //根keys_zone后的内容对应
			proxy_cache_valid  200 304 301 302 10d;   //哪些状态缓存多长时间
			proxy_cache_valid  any 1d;    //其他的缓存多长时间
			proxy_cache_key $host$uri$is_args$args;   //通过key来hash，定义KEY的值
 
			proxy_pass http://myselfxtajmd;
			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;
		}
 
		//动态的放过
		location ~ .*\.(php|jsp|cgi)?$
		{
			proxy_set_header Host  $host;
			proxy_set_header X-Forwarded-For  $remote_addr;
			proxy_pass http://myselfxtajmd;
		}
	}
}

...
location / {
    root /myweb/server/;
    error_page 404 =200 /errpage$request_uri;
}
location /errpage/ {                                        #捕获404重定向
    ...
    internal;                                                    #该目录不能通过外部直接访问
    alias /home/html/;
    proxy_pass    http://backend/;                    #注意这里未尾的“/”，它将替换掉 “/errpage/”，该技巧参见P108
    proxy_set_header Accept-Encoding "";
    proxy_store on;
    proxy_store_access user:rw    group:rw    all:r;
    proxy_temp_path    /myweb/server/tmp;       #/myweb/server/ 在同一个硬盘分区内
}

...
location / {
    root /home/html/;
    internal;                                                    #该目录不能通过外部直接访问
    alias /home/html/;
    proxy_set_header Accept-Encoding "";
    proxy_store on;
    proxy_store_access user:rw    group:rw    all:r;
    proxy_temp_path    /myweb/server/tmp;       #/myweb/server/ 在同一个硬盘分区内
 
    if ( !-f $request_filename )                          #判读请求的资源是否存在
    {
        proxy_pass http://backend/;
    }
}

...
server {
    location / {
        ...
        set $memcached_key "$uri?$args";
        memcached_pass 192.168.1.4:8080;
        error_page 404 502 504 = @fallback;
    }
    location @fallback {
        proxy_pass http://backend;
    }
}

...
http {
    proxy_cache_path /myweb/server/proxycache levels=1:2 max_size=30g inactive=1d  keys_zone=MYPROXYCACHE:200m;
    proxy_temp_path  /myweb/server/tmp;  #配置响应数据的临时存放目录
    server {
        location / {
            proxy_pass http://www.myweb.name/;
            proxy_cache MYPROXYCACHE;
            proxy_cache_valid 200 302 1h;
            proxy_cache_vali 301 1d;
            proxy_cache_vali any 1m;
        }
    }
}