nginx中ngx_http_access_module做访问控制

出现问题：配置文件如下：

 server {        listen       80;        server_name  www.a.com;        deny 192.168.65.105;        allow 192.168.0.0/24;        deny all;        #access_log  logs/host.access.log  main;        location / {            root   html/a.com;            index  index.html index.htm;        }

物理主机ip为192.168.65.101，node1为192.168.65.105，node2为192.168.65.110，都出现403状态？

子网掩码写错了!!!!!!!!!!!!!!!!!!!!!!!!!!!