ddos

Using Parallel Processing in C# to test a site's ability to withstand a DDOS

由 纵饮孤独 提交于 2021-02-11 07:14:14
问题 I have a website and I am also exploring Parallel Processing in C# and I thought it would be a good idea to see if I could write my own DDOS test script to see how the site would handle a DDOS attack. However when I run it, there only seems to be 13 threads in use and they always return 200 status codes, never anything to suggest the response wasn't quick and accurate and when going to the site and refreshing at the same time as the script runs the site loads quickly. I know there are tools

Using Parallel Processing in C# to test a site's ability to withstand a DDOS

由 ≯℡__Kan透↙ 提交于 2021-02-11 07:13:08
问题 I have a website and I am also exploring Parallel Processing in C# and I thought it would be a good idea to see if I could write my own DDOS test script to see how the site would handle a DDOS attack. However when I run it, there only seems to be 13 threads in use and they always return 200 status codes, never anything to suggest the response wasn't quick and accurate and when going to the site and refreshing at the same time as the script runs the site loads quickly. I know there are tools

Using Parallel Processing in C# to test a site's ability to withstand a DDOS

由 浪尽此生 提交于 2021-02-11 07:11:27
问题 I have a website and I am also exploring Parallel Processing in C# and I thought it would be a good idea to see if I could write my own DDOS test script to see how the site would handle a DDOS attack. However when I run it, there only seems to be 13 threads in use and they always return 200 status codes, never anything to suggest the response wasn't quick and accurate and when going to the site and refreshing at the same time as the script runs the site loads quickly. I know there are tools

Using Parallel Processing in C# to test a site's ability to withstand a DDOS

由 こ雲淡風輕ζ 提交于 2021-02-11 07:11:17
问题 I have a website and I am also exploring Parallel Processing in C# and I thought it would be a good idea to see if I could write my own DDOS test script to see how the site would handle a DDOS attack. However when I run it, there only seems to be 13 threads in use and they always return 200 status codes, never anything to suggest the response wasn't quick and accurate and when going to the site and refreshing at the same time as the script runs the site loads quickly. I know there are tools

Using Parallel Processing in C# to test a site's ability to withstand a DDOS

由 我们两清 提交于 2021-02-11 07:11:13
问题 I have a website and I am also exploring Parallel Processing in C# and I thought it would be a good idea to see if I could write my own DDOS test script to see how the site would handle a DDOS attack. However when I run it, there only seems to be 13 threads in use and they always return 200 status codes, never anything to suggest the response wasn't quick and accurate and when going to the site and refreshing at the same time as the script runs the site loads quickly. I know there are tools

what is the best way to simulate DDoS TCP SYN Flooding attack

由 随声附和 提交于 2020-06-29 04:10:46
问题 I want to simulate a network that is under DDoS TCP SYN Flooding attack and evaluate the performance of a new solution and compare it with other solutions. i was planning to do it using NS3 but i read somewhere in the internet that i can't do it well using a descret event network simulator (NS3 is a descret event network simulator), i want to know why ? and what is the best alternative ? 回答1: Unfortunately, DoS attacks cannot be simulated in ns-3 . By extension, DDoS attacks cannot be

DOS Protection in Azure Web APP

由 人盡茶涼 提交于 2020-05-25 08:21:09
问题 We are using Azure Web APP for for our FrontEnd site. Recently we have discovered DOS attack on our website. When I googled around I got to know solution for Azure Cloud Services. Is there any way, Azure Web APP can be protected with out of box support.. 回答1: Azure Web Sites enabled the Dynamic IP Restrictions module for IIS8.You can protect your Azure Web App from DDOS Attacks by configuring Dynamic Ip Security under System.WebServer in your App's web.config file as follows. <security>

Multiple ajax calls via recursive function and DDOS-ing ourselves

由 强颜欢笑 提交于 2020-05-15 22:52:52
问题 In the comment by the link Jquery multiple Ajax Request in array loop the author said that making ajax requests in a loop may end up DDOS-ing ourselves. Does that apply only a loop or multiple ajax calls in general? I mean may the risk of DDOS-ing be as well if I make multiple ajax requests via recursive function like ajax(0); ajax(index) { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if(this.readyState == 4 && this.status == 200) { ajax(index+1) } }; xhr.open('POST',

iptables常用的防御功能实例

由 醉酒当歌 提交于 2020-04-25 13:23:23
一、使用 connlimit 模块， 控制 并发访问（CC / DOS ）量： iptables -I INPUT -p tcp --dport 80 -m connlimit --connlimit-above 10 -j LOG --log-prefix "WEB Attack" 示例配置 如下： *filter -A INPUT -p tcp --dport 80 -m connlimit --connlimit-above 10 -j LOG --log-prefix "WEB Attack" -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT 结果 图： 效果图： sudo

洞见|2019互联网安全与DDoS态势研究报告即将发布

由 别说谁变了你拦得住时间么 提交于 2020-04-05 16:51:17
白山云科技 2019年，我国规模以上互联网和相关服务企业收入 12061亿元 ，增速高达 21.4% 。万亿级市场激发各赛道玩家想象的同时，黑灰产势力更是“高歌猛进”，网络安全大战一触即发。 为透视网络攻击内在机制与安全趋势， 数世咨询 、 白山云科技 及 上海云盾 将于4月16日联合发布 《2019年全球互联网安全态势报告》 与《2019年DDoS威胁态势与攻防产业链研究报告》。折射互联网安全态势全景，为网络安全从业者提供一份详实内参。 《2019年全球互联网安全态势报告》 AI、5G、IPv6等高新技术逐渐普及，在提升网络性能、创新网络安全解决方案的同时，新型攻击也不断显露，企业防不胜防。以2019年为例，YUNDUN云平台日均阻断Web漏洞威胁高达上亿次，拦截数十亿次bot请求，清洗DDoS攻击峰值超过600Gbps。 2019年v.s 2018年Web应用攻击趋势图 在此背景下，本报告将从 Web应用攻击 、 DDoS攻击 、 业务层攻击 三方面切入，解析2019年全球互联网安全态势；复盘YUNDUN漏洞应急响应实践、“变种”DDoS防火墙绕过攻击、UEBA精准检测爬虫攻击等五起典型事件。帮助企业识破"变种"攻击的精巧伪装，参透新技术变量，构筑覆盖未知风险的安全防御体系。 核心观点抢读 🕛 网络攻击威胁倍增，数据及敏感文件安全性成为企业核心关注对象 🕝
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