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2000车2月7日开始,美国Yahoo、eBay等几个著名的大型商业网站连续遭到黑客的袭击,造成网络长达数小时的瘫痪。据统计,袭击所造成的经济损失可能在12亿美元以上。这次袭击引起了各国政府以及全球信息产业界的广泛关注。根据有关报道,这次攻击手法是以放大量垃圾包淹没目标网站,使得真正的用户无法使用目标网站系统,至少有数百台电脑同时发起了攻击行动。这是一种“分布式拒绝服务”(Distributed Denial of Service,DDoS)的攻击方式。本文将简要介绍这种攻击方式的原理、工具和解决方法。
2000 car On February 7, several well-known large-scale commercial websites such as Yahoo and eBay in the United States were continuously attacked by hackers, causing the network to be paralyzed for hours. According to statistics, the economic losses caused by the attack may be above 1.2 billion U.S. dollars. The attack caused widespread concern among governments and the global information industry. According to reports, this attack is based on a large amount of rubbish packets overwhelmed the target site, making the real user can not use the target site system, at least hundreds of computers at the same time launched an attack. This is a “Denial of Service” (DDoS) attack. This article will outline the principles, tools, and solutions for this attack.