The DoS attacks These are actions that are frequently performed today. Its about saturate the system so that it becomes inoperative and cannot offer its services.
But this is not the only thing that achieves a DoS cyber attack because there are different ones that hackers practice. If you want to know what they are, you will have to continue reading this article because we will explain what this practice consists of.
Also, you will find information about how to know if you are the victim of an attack and what are the best tips that you should take into account to avoid a breakthrough of these.
What is a DoS cyberattack and what is its main intention on our computers?
It is considered as cyber attack Any action or maneuver carried out intentionally to destabilize the computer system of a private network, a computer or a server. This is done to gain control, steal information, and deny access to legitimate users.. In this way, security is violated and profits from all personal information, private and financial that is obtained from hostings or any other device attacked.
Types of DoS attack What are all that exist?
There are different types of DoS attack that are currently running. They all aim produce economic damage to the owners of the platform and is generally done by losing the connection between the users and the hosting.
The most frequent types of denial-of-service attacks include:
- Depletion or saturation of the hosting. This kind of DoS attack is characterized by carrying out multiple attacks on the system so that memory, bandwidth and software access take up a lot of resources and therefore become saturated and stop responding to users.
- Alteration in the configuration. Another of the most common attacks that exist is the modification or elimination of certain parameters that are key to accessing the system. This results in the equipment being out of service and the users unable to access the domains.
- Remote destruction. It is one of the attacks with the most negative results for its owners because intruders can gain access via the Internet and physically alter the components until they completely damage the equipment. This brings serious consequences because the system is inoperative for a long time.
- Interruption in data transfer. A DoS attack can also alter the communication between two devices making it impossible to transmit information between them. This type of attack is also known as a TCP Reset Attack.
- Obstruction in communication. This type of DoS attack is widely used in legal matters, because the victim of the hack is prevented from communicating properly with the server.
How to know if we are victims of a DoS attack? more obvious symptoms
While is true that there are many tools to defend against DoS type attacksthe problem is that many times the user does not know that he is being attacked by this type of aggression.
Therefore, it is convenient to protect your network and your equipment with more elements when you have some of these symptoms:
- The website it becomes inactive without specific reasons and as time goes by, that period of inactivity increases.
- Every time you have more dissatisfied users due to denial of service, as they are unable to enter the website with ease.
- When there is a large number of dummy or useless requests that generate a significant overload in the system and saturate its resources.
- If configuration changes are found of vital parameters for user access to the system.
Tips to avoid being a victim of a denial of service attack
Denial of service attacks are becoming more common, so you will have to be careful and keep these tips in mind:
Hire a prestigious server
Try to choose a hosting for your website that has good reputation and ability to tolerate a large traffic flow. In addition, you must have 24/7 support to help you solve problems that are external to your website. You do not have to forget that the hosting must have its own protection measures in the network and intrusion detection, they are called IDS/IPS systems.
Control the flow of traffic
You should keep in mind that this task will have to be done frequently to know that the bandwidth is sufficient to support the traffic spikes. If you notice that the visit curve has skyrocketed, you should pay attention because you may be under attack.
Frequently analyze visitor activity
One of the easiest ways to detect a DoS attack is when dramatically increases empty requests or the number of forms are filled automatically.
Incorporates load balancing
It will be necessary to use redundancy which consists of duplicate your content on more than one server and thus reduce the risks of inoperability. That is, every time a hosting is attacked you can use another to continue providing services to users in a normal way.
Incorporates cloud firewalls
A very practical solution is include a firewall applications in the cloud, also called Web Application Firewall (WAF). These elements act as intermediaries between the server and the users and therefore manage to anticipate cyber attacks and automatic programs.
Constantly update all your systems
The best practice that you can carry out to avoid DoS attacks is update all the programs you have to provide a good web service to your users. With this you can make web content managers and hostings stronger when it comes to being attacked.
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