ddos attack mitigation techniques

April 19, 2010 Morning |VPS DetectiveObjectiveThe internet is as full of rivalry as the real world, and the site has become the most headache for webmasters. In the absence of hard defense, looking for software replacement is the most direct method, such as with iptables, but iptables can not be automatically shielded, can only be manually shielded. What we're going to talk about today is a software that automatically shields DDoS attackers ' IPs:

be uniquely spoofed with IP addresses. 2) The mitigation of the attack traffic is mainly to the network traffic to clean, before cleaning needs dilution, the method of dilution mainly has CDN, AnyCast, the former is through the intelligent DNS, the user's access to different machines, but this method on the specified IP attack is invalid, Anycast can solve the p

professional attack tools. The 5th chapter discusses the cost and the benefit of DDoS from the angle of the attacker. The 6th chapter analyzes the management and mitigation methods of DDoS, and introduces the management of source, path and reflection point, dilution and cleaning technology. The 7th chapter looks into

content of the site is the ISP (Network service provider) and WiFi provider's usual profit means.For example, some hotel networks, mobile networks will insert ads or other tracking cookies into the websites that users visit. Legitimate business typically does not inject malicious code into the site, but it does not mean that others on the Internet are not able to do so. If an attacker can obtain network location privileges like ISPs, such as network interconnection and switching nodes, an attac

full range of personnel, at least the Monitoring Department, Operations department, Network Department, Security Department, customer service Department, business unit and so on, all need 2-3 backup. After the process started, in addition to manual processing, but also should include a certain automatic processing, semi-automatic processing capacity. For example, automated attack analysis, identifying the type of

. Restrict default kod nomodify notrap nopeer noquery Restrict-6 default kod nomodify notrap nopeer noquery Mitigation reference: Https://www.us-cert.gov/ncas/alerts/TA14-013A The defense content of this link is as follows: Recommended Course of Action // us CERT description As all versions of ntpd prior to 4.2.7 are vulnerable by default, the simplest recommended course of action is to upgrade all versions of ntpd that are publically accessible to a

process, as well as innate weaknesses, Because each attack involves a different link, each link can be done by different levels of people, he has resources, he used the tools and techniques are not perfect, so it is possible to defend, in addition, I believe that the DDoS attack is a fixed industry, there will be some

) Arbor Networks pravail Availability Maintenance System (APS) is specially described for the company, it supplies open package can be used, over the theory of the detection of DDoS attack identification and mitigation functions, such functions can be used with very little equipment quickly layout, and even in the process of

its CC server, including obtaining the time and target of the start of the DDoS attack, uploading the information stolen from the host, and timing to encrypt the infected machine file. Why malware need unsolicited and cc service communication? Because in most cases malware is downloaded to the infected host by means of phishing emails , the attacker is not able to actively know who downloaded the malware a