memcached 和 web server跑在同一台server，如何配置防火墙
memcached 和 web server跑在同一台server，如何配置防火墙阻止外网telnet 到memcached，
telnet登陆memcached也无需密码什么的就能浏览memcached。一般大家都是如何解决安全的。
------解决方案--------------------
memcached 使用内网IP就可以了。
启动参数使用 -l
例如：memcached -d -m 256 -c 2048 -p 11211 -u www -l 127.0.0.1
------解决方案--------------------
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