nginx多个域名绑定一个项目

问题：nginx如何多个域名绑定一个项目，一个端口，但是子目录。

解决：做www.xiao.com项目时，需要做移动端，m.xiao.com，但不想再开服务，所以绑定的ip和端口就是一个

方法：
1、www.xiao.com 的nginx配置文件如下

upstream xiao {
    server 127.0.0.1:8001;
}
server {
    listen       80;
    server_name  xiao.com www.xiao.com;
    server_tokens off;
    if ($host != 'www.xiao.com'){
        rewrite ^/(.*)$ http://www.xiao.com/$1 permanent;
    }

    access_log  /alidata/log/nginx/access/dongman.log;
    error_log  /alidata/www/dongman/website/logs/error.log;
    client_max_body_size 50m;
    location /static/ {
        root   /alidata/www/dongman/website/;
        if ($query_string) {
            expires max;
        }
    }
    location = /favicon.ico {
        rewrite (.*) /static/favicon.ico;
    }
    location = /robots.txt {
        rewrite (.*) /static/robots.txt;
    }
    location / {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://xiao;
        # track_uploads proxied 30s;
    }
}

2、m.xiao.com 的nginx的配置如下

upstream mxiao {
    server 127.0.0.1:8001;
}
server {
    listen       80;
    server_name  m.xiao.com;
    server_tokens off;
    access_log  /alidata/log/nginx/access/dongman.log;
    error_log  /alidata/www/dongman/website/logs/error.log;
    client_max_body_size 50m;
    location /static/ {
        root   /alidata/www/dongman/website/;
        if ($query_string) {
            expires max;
        }
    }
    location = /favicon.ico {
        rewrite (.*) /static/favicon.ico;
    }
    location = /robots.txt {
        rewrite (.*) /static/robots.txt;
    }
    location / {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://mxiao/m/;
        # track_uploads proxied 30s;
    }
}

注：tornado作为服务器
如果使用nginx作为服务器时，只需要更改运行的路径就行了，例如m.man.com

server {
    listen       80;
    server_name  m.man.com;
    index index.html index.htm index.php;
    root /alidata/www/man/m;
    if ($host != 'm.man.com') {
        rewrite ^/(.*)$ http://m.man.com/$1 permanent;
    }
    location ~ .*.(php|php5)?$ {
        # fastcgi_pass  unix:/tmp/php-cgi.sock;
        fastcgi_pass  127.0.0.1:9000;
        fastcgi_index index.php;
        include fastcgi.conf;
    }
    location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$ {
        expires 30d;
    }
    location ~ .*.(js|css)?$ {
        expires 1h;
    }
    access_log  /alidata/log/nginx/access/m.man.log;
    error_page 404  /404.html;
}

这是php文件，所以指定运行目录就能运行了