Security is no longer about simply keeping the bad guy out.
安全不只是简单的将坏人当在外面。说的好！！！

Firewalls and intrusion detection alone won't cut it. Web-based applications are increasingly vulnerable to attack.

Security is no longer about putting up walls around the data center and simply trying to keep the bad guys out.

Network managers, IT managers and security professionals must now focus security efforts at the application layer, using intelligence and insight to prevent attacks and unauthorized uses of corporate information.

Internet本身就是一个巨大的 Router.

这两天,在玩 VMWARE 和 Red Hat Linux, 执行了TFN 的攻击程序，收获不小。但是想想，这都是三年前的技术了。

网络安全要解决的问题就是 TE 和QoS 。因为流量会反映一切。控制Internet 上的流量，只要能为用户提供优质服务，网络安全问题也就解决了。至于信息安全的问题应该由操作系统和应用去解决。