Today’s modern cloud services are becoming more and more popular, due to the fact that they offer their users great flexibility and convenience. The main disadvantage of cloud services is that they are hosted on remote servers, which makes them vulnerable to attacks. Hackers can easily launch denial-of-service attacks against cloud services, which can have a significant negative impact on the availability of the service.
In order to prevent these attacks, cloud service providers need to monitor their systems and block any such incoming traffic, which is not required. For example, if an incoming traffic is related to a known DDoS attack, it needs to be blocked. However, cloud service providers don’t have the necessary control over the incoming traffic, so they can’t always do this. Therefore, hackers can easily launch DDoS attacks against cloud services, which can have a significant negative impact on the availability of the service.
What is DNS Over TLS?
DNS Over TLS is a protocol that can be used to encrypt domain name system traffic. It provides an alternative to Transport Layer Security (TLS) and helps prevent the eavesdropping of DNS queries and responses, which are sent over the public internet.
The use of this protocol allows organizations to adopt the standard encryption method for their DNS traffic, which would protect their data in case of a breach. It also prevents cybercriminals from using DNS records as information sources, which may have been stolen before. For example, when your website is attacked by hackers, they use your domain name servers as a source for information about your website’s security vulnerabilities. However, with the use of DNS Over TLS, you can encrypt your traffic so that hackers cannot extract any sensitive information from it.
DDoS Attacks: What are they?
A denial-of-service attack is a cyberattack that denies service to a specific computer or network by overloading it with external requests, usually from multiple sources. Denial-of-service attacks are generally implemented for the purposes of causing disruption, extortion, and/or gaining unauthorized access to computer systems.
DDoS attacks can be divided into two types: application layer attacks and network layer attacks. Application layer DDoS attacks target specific applications running on a system, such as HTTP servers or DNS servers. Network layer DDoS attacks target the networking infrastructure itself and therefore they cannot be stopped using traditional methods like filtering traffic.
Finding the Vulnerable Point of an Application
The first step to take for preventing DDoS attacks is to find the vulnerable point of an application.
There are certain vulnerabilities that can be exploited easily, such as open ports, high availability and poorly configured network equipment. Cloud services should routinely check which ports are open and what type of network equipment is being used in order to find these vulnerabilities. If they do not, they will have no option but to hire a security specialist who can help them with this task.
Detect and Block DDoS Attacks on Cloud Servers
DDoS attacks on cloud servers can be prevented by monitoring systems and blocking any known DDoS traffic. For example, if an incoming traffic is related to a known DDoS attack, it needs to be blocked. However, cloud service providers don’t have the necessary control over the incoming traffic, so they can’t always do this. Therefore, hackers can easily launch DDoS attacks against cloud services, which can have a significant negative impact on the availability of the service.
Traditionally, machine learning was used to detect malicious traffic and block it before it could reach its destination. However, machine learning is currently not able to identify which particular application is being attacked in order to block it. So these methods are not appropriate for this task as they cannot detect particular applications that are being attacked and block them accordingly.
In order to combat this problem, cloud service providers need an additional solution that can provide them with a more reliable way of monitoring their systems and detecting DDoS attacks in real-time. The solution that would be most suitable for this task is honeypots (honeynets). Honeypots are simulated machines set up by security teams in order to detect potential threats like DDoS attacks in real-time and provide protection from such threats. In addition, honeypots provide a honeypot-based mechanism that allows security teams to monitor their systems without installing additional hardware or software solutions from outside companies.
The main advantage of using honeypots is that there
How Does DDoS Attacks Work?
DDoS attacks are basically malicious traffic flooding the target network with more traffic than it can handle. This is done by hackers who managed to create a botnet of compromised PCs. When the attackers launch their attack, they trick the target into thinking that this new traffic is real, and it will allow them to send even more legitimate traffic through.
The target then gets flooded with what looks like real requests and responses, which results in the service to slow down or crash completely. The outcome of such an attack depends on several factors: what kind of service is attacked; how big is the initial botnet; and how fast can the provider deal with incoming traffic.
DDoS attacks can seriously impact availability of a service. For example, this type of attack was used when Amazon went offline for about four hours in December 2013 due to DDoS attacks from hackers.