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服务器攻击方式有哪几种?分享几种常见的服务器攻击类型,杭州高防服务器租用103.219.30.x

发布时间:2022-07-07 16:42:40

随着互联网的快速发展,网络攻击事件频发,已泛滥成互联网行业的重病,受到了各个行业的关注与重视,因为它对网络安全乃至国家安全都形成了严重的威胁。面对复杂多样的网络攻击,想要有效防御就必须了解网络攻击的相关内容。常见的服务器攻击有带宽消耗型攻击和系统资源消耗型攻击。今天就和你们分享常见的几种攻击。


1、DDoS攻击

DDoS攻击既是带宽消耗型攻击,也是系统资源消耗型攻击,恶意使用TCP/IP协议通信TCP SYN攻击TCP PSH+ACK攻击畸形报文攻击三种方式,三者都能起到占用服务器系统资源的效果。


2SYN攻击

利用TCP协议缺陷,通过发送大量半连接请求以耗费服务器CPU和内存资源的攻击类型,同时还可能危害路由器、防火墙等网络系统。SYN攻击不能被完全阻止,只能通过加固TCP/IP协议栈、部署防火墙/路由器等过滤网关加以防御,以尽量减轻对服务器的危害


3TCP PUSH+ACK 攻击/TCP SYN攻击

这两者攻击目的都在于耗尽服务器系统的资源,当代理主机向目标服务器发送PSH和ACK标志设为1的TCP报文时,将使接收系统清除所有TCP缓冲数据并回应一个确认消息,如果这一过程被大量重复,服务器系统将无法处理大量的流入报文,造成服务崩溃。


4畸形报文攻击

通过指使代理主机向目标服务器发送有缺陷的IP报文,使得目标系统在处理这些IP包时出现崩溃,给目标服务器带来损失。主要的畸形报文攻击如Ping of Death,发送超大尺寸ICMP报文,Teardrop利用IP包碎片攻击、畸形TCP报文、 IP-fragment攻击等。


5应用层攻击

针对特定的应用或服务缓慢地耗尽服务器应用层上的资源的攻击类型。应用层攻击在低流量速率下十分有效,从协议角度看,攻击中涉及的流量可能是合法的,这使得应用层攻击比其他类型的攻击更加难以检测。HTTP洪水、CC攻击、DNS攻击等都是属于应用层攻击


6HTTP 洪水攻击

利用看似合法的HTTP GET或POST 请求攻击服务器网页或应用,通常使用僵尸网络进行。僵尸网络是通过将大量主机感染bot程序病毒所形成的一对多的控制网络,黑客可以控制这些僵尸网络集中发动对目标服务器的拒绝服务攻击,这使得HTTP洪水攻击很难被检测和拦截。


7CC攻击

基于页面攻击的攻击类型,模拟许多用户不间断地对美国服务器进行访问,并且攻击目标一般是资源占用较大的动态页面,还会涉及到数据库访问操作。由于使用代理作为攻击发起点,具有很强的隐蔽性,系统很难区分是正常用户的操作还是恶意流量,进而造成数据库及其连接池负载过高,无法响应正常请求。


8DNS攻击

主要有两种形式,一是通过发起大量的DNS请求,导致DNS服务器无法响应正常用户的请求二是通过发起大量伪造的DNS回应包,导致DNS服务器带宽拥塞。两种方式都将导致正常用户不能解析服务器DNS,从而不能获取服务。

 

以上就是今日分享的常见服务器攻击,希望能帮助到关注服务器安全的服务器管理员,开发游戏、区块链、APP等对数据安全非常重视的业务建议可以通过租用高防服务器或者增加配置提升性能,来降低网络攻击所带来的损失。

 

高防护段(TCP_SYN,ACK,RST)展示:

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