浅论DDoS攻击与小型服务器的软件防御

Discussion on DdoS Attacks and Soft Strategy of Defense

从出现分布式拒绝服务（DDoS）攻击以来，这一攻击手段得到了网络安全界的高度重视，其程度比其他任何安全威胁都高，但目前而言对于DDoS的防范还是没有什么好办法，较为有效的办法是在硬件上进行升级，但对于众多小型服务器用户来说，价格昂贵的防DDos设备投资成本实在太高，文章试从软件方面提出DDoS攻击防御方法，以期最大限度地用最小成本提高服务器的抗DDos能力。

From the emergence of distributed denial of service （DDoS） attacks, It has been a means of network securiW circles,it＇s extent of security threats higher than other, At present,we have no way to defense it, upgrade the hardware is a effective approach,but for many small server users, These hardware is too expensive.The auther try. to Propose a method for defense it by software,for enhance the capacity of the server anti-DdoS with minimum cost.