Table of Contents
How does a DNS reflection attack work?
A DNS Reflection Attack, also known as a DNS Amplification Attack, is a form of a Distributed Denial of Service (DDoS) attack. In this attack, hackers use open DNS servers to amplify their their attack traffic by up to 100 times the original source traffic performing the attack.
What is a DNS attack method?
A Domain Name System (DNS) attack is one in which a bad actor either tries to compromise a network’s DNS or takes advantage of its inherent attributes to conduct a broader attack. A well-orchestrated DNS attack can bring an organization to its knees.
What is the purpose of a DNS amplification attack?
A Domain Name Server (DNS) Amplification attack is a popular form of Distributed Denial of Service (DDoS), in which attackers use publically accessible open DNS servers to flood a target system with DNS response traffic.
What is a reflected DDoS attack?
A reflection/amplification attack combines the two, enabling attackers to both magnify the amount of malicious traffic they can generate and obscure the sources of the attack traffic. The most prevalent forms of these attacks rely on millions of exposed DNS, NTP, SNMP, SSDP, and other UDP/TCP-based services.
What is a Reflective DNS?
The Domain Name System (DNS) is a database that stores internet domain names and further translates them into IP addresses. A DNS reflection/amplification distributed denial-of-service (DDoS ) attack is a common two-step DDoS attack in which the attacker manipulates open DNS servers.
How are DNS amplification attacks mitigated?
Method of mitigation Common ways to prevent or mitigate the impact of DNS amplification attacks include tightening DNS server security, blocking specific DNS servers or all open recursive relay servers, and rate limiting.
What countermeasures can be adopted to mitigate SYN flood attacks?
You can prevent SYN flood attacks by installing an IPS, configuring your firewall, installing up to date networking equipment, and installing commercial monitoring tools.