快快通103.8.220.*扬州挂站专用服务器有效防护CC攻击

近几年，网络恶意攻击逐渐增多，很多网站饱受困扰，而其中最为常见的恶意攻击就是CC以及DDoS攻击。对于一些防御能力较弱的网站来说，一旦遭遇这些攻击，轻则网站瘫痪，重则直接影响生存。那么DDoS攻击和CC攻击区别在哪里？哪一个对服务器伤害比较大？下面来简单介绍一下。DDoS攻击DDoS攻击（分布式拒绝服务攻击）指借助于客户/服务器技术，将多个计算机联合起来作为攻击平台，对一个或多个目标发动DDoS攻击，从而成倍地提高拒绝服务攻击的威力。DDoS的攻击方式有很多种，最基本的DoS攻击就是利用合理的服务请求来占用过多的服务资源，从而使合法用户无法得到服务的响应。单一的DoS攻击一般是采用一对一方式的，当攻击目标CPU速度低、内存小或者网络带宽小等等各项指标不高的性能，它的效果是明显的。分布式的拒绝服务攻击手段（DDoS）就应运而生了。DDoS就是利用更多的傀儡机（肉鸡）来发起进攻，以比从前更大的规模来进攻受害者。CC攻击CC攻击是DDoS攻击的其中一种，是目前应用层攻击的主要手段之一，相比其它的DDoS攻击CC似乎更有技术含量一些。CC攻击借助代理服务器生成指向目标系统的合法请求，实现伪装和DDoS。我们都有这样的体验，访问一个静态页面，即使人多也不需要太长时间，但如果在高峰期访问论坛、贴吧等，那就很慢了，因为服务器系统需要到数据库中判断访问者否有读帖、发言等权限。访问的人越多，论坛的页面越多，数据库压力就越大，被访问的频率也越高，占用的系统资源也就相当可观。CC攻击就充分利用了这个特点，模拟多个正常用户不停地访问如论坛这些需要大量数据操作的页面，造成服务器资源的浪费，CPU长时间处于100%，永远都有处理不完的请求，网络拥塞，正常访问被中止。这种攻击技术性含量高，见不到真实源IP，见不到特别大的异常流量，但服务器就是无法进行正常连接。DDoS攻击和CC攻击的区别虽然DDoS攻击和CC攻击的诞生都是利用了TCP/IP 协议的缺陷，但他们还是有一定区别的。攻击对象不同DDoS是针对IP的攻击；CC攻击针对的是网页。危害不同DDoS攻击危害性较大，更难防御；CC攻击的危害不是毁灭性的，但是持续时间长。门槛不同DDoS攻击门槛高，攻击者一般需要在攻击前搜集被攻击目标主机数目、地址情况、目标主机的配置性能等资料，盲目攻击可能导致效果不佳；CC攻击门槛低，利用更换IP代理工具即可实施攻击，且目标比较明确，黑客水平比较低的用户也能进行。流量大小不同DDoS攻击比CC攻击所需要流量更大；CC攻击有时不需要很大的流量。简单来说，DDoS攻击和CC攻击都能使服务器宕机无法访问，最终都会造成一定损失，当对用户自身造成损失时，就不存在哪一个伤害更大的问题了。如何防御DDoS攻击和CC攻击？快快通是快快网络精工打造的网站定制防护安全品牌，主要针对网站客户优化，DDOS，CC，TCP定制防御，满足不同客户需求，值得信赖。CPU内存硬盘IP数防御网络环境机房价格E5-2670X2 32核32G480G SSD1个200G单机G口100M独享扬州BGP高防区(推荐)1800 元/月E5-2670X2 32核32G480G SSD1个300G单机G口100M独享扬州BGP高防区(推荐)3500 元/月E5-2670X2 32核32G480G SSD1个400G单机G口100M独享扬州BGP高防区(推荐)6500 元/月E5-2670X2 32核32G480G SSD1个500G单机G口100M独享扬州BGP高防区(推荐)10000 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快快通103.8.220.*扬州挂站专用服务器有效防护CC攻击