How to prevent DDoS Attacks - Different Types of DDoS Attacks 

Simply put, a DDoS attack is a type of cyber-attack in which traffic by a collective computer is directed at a server, network, or service to pull resources out. The computer group is called a botnet that is a malware-infected network controlled by the attacker. Here at Server Colocation, we will provide all the information about DDoS attacks, DDoS meaning, and how to prevent DDoS attacks on PC. 

It should be noted that between DoS and DDoS attacks, there is a clear difference. A DoS or denial of service is an attack when the server is flooded with packets such as TCP or UDP by a computer. A DDoS attack uses several devices in comparison. As a result, DDoS attacks are stronger because the assets of more devices are used as a weapon. 

There are various kinds of cybercriminals using DDoS attacks, which exploit various flaws when an attacker launches numerous assaults at once. The defence of these vulnerabilities can be difficult. You understand the potential attacks to help stop a DDoS attack and protect yourself. 

How to prevent DDoS Attacks: The various kinds of attack

In various layers of Open Systems Interconnection, zombies target vulnerabilities and usually fall into three categories: 

1. Application Layer Attacks

The most basic type of DDoS is application-layer attacks; they imitate ordinary server requests. Therefore, the computers or devices in the botnet are combined in the same way as a regular user for accessing the server or website. 

However, as the DDoS attack escalates, the server's volume of apparently legitimate requests is overwhelmed. 

2. Attacks Protocol

The server processes data for overload by a protocol attack and overwhelms the desired objective. 

The botnet will deliver data packets to the server to assemble in certain variations of protocol attacks. The server then expects a confirmation that it never receives from the source IP address. But more and more data is still being unpacked. 

In another variability, it delivers data packets that cannot be repaired and will devastate the server's resources. 

3. Volumetric Attacks

The volumetric attacks are comparable but with a twist. In this type of DDoS, botnet requests that have been amplified somehow manufacture a server's entire accessible bandwidth. 

Occasionally, for instance, botnets can manipulate servers into large data mailing. This implies the server has to retrieve, assemble, send, and receive this data. 

These attacks can be avoided by using DDoS prevention tools.

6 tips on how to prevent DDoS attack  

The greatest layer of attack toward the DDoS attack is preparation. It is better than traffic is proactively blocked than reactive. Since DDoS attack prevention is not always feasible, a mixture of prevention and response methods should be in a position to handle an occurrence with minimal disturbances. In the end, less harm is done the faster you or your team responds. You may be thinking about how to stop a DDoS attack? Following are the 6 steps on how to prevent DDoS attacks on router? 

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1. Modify server IP or instantly call your ISP

If a complete DDoS attack is launched, the server IP and the name of the DNS may be altered. However, you can start sending traffic to your new IP address if your attacker is careful. You should contact the IP provider to block or re-route malicious traffic when IP changes are not possible. 

2. Monitor the traffic on your site

One of the key signs of a DDoS attack is an increase in online traffic. Through a website traffic management tool, you can find the moment you launch a DDoS attack. Often DDoS suppliers utilize warnings and thresholds to inform you of the large number of requests a resource gets. Although traffic monitoring does not deter an attack, it helps you react rapidly and mitigate whether an attacker is targeting you. 

3. Establish redundant network architecture 

Creating your network infrastructure to withstand a DDoS attack is a great way to maintain your operation. You can expand geographically core services such as servers to make it harder for an attacker to place you offline. This helps you to close down even though a computer is targeted and still provides partial operation. 

4. Utilizing the Web Application Firewall  (WAF)

To redirect HTTP traffic with an application and the internet, a Web application firewall or WAF attacker utilizes.  If a cyber-attacker threatens the application layer with DDoS, the application firewall blocks unwanted HTTP traffic immediately until it hits the domain. By setting policies to identify which IP addresses are Whitelisted or blacklisted, you will decide what traffic is being filtered. 

5. Firewalls and routers are configured!

To reduce the entry points into your network, configuring network devices such as firewalls and routers is critical. For e.g., a firewall aims to deter cyber-criminals from finding their IP address so that no traffic can be exchanged. Likewise, the routers are fitted with DDoS security configurations and filters you can utilize for managing protocol and packet form entry. 

6. Activate geo-blocking (country blocking)

Geo-blocking is the method of blocking international traffic, which often includes DDoS attacks. Most DDoS traffic arrives from China, Vietnam, Taiwan, and South Korea, which could restrict your visibility by blocking traffic from these areas. Whilst attackers can manage geo-blocking, their exposure to foreign botnets can decrease. 

Final Words 

Before it is too late, prepare for a DDoS attack rather than wondering how to prevent dos attacks after you become the victim. Sadly, a heavy DDoS attack is difficult to battle, even with all training worldwide. You are also expected to have some sort of destruction if you succeed in battling the threat. However, you can decrease the risk of hacking attempt by

planning accordingly. 

You can only inform the staff and consumers about service problems during an attack. A social media notification will let the clients know that there is an alarming situation and address it. At Server Colocation, you can talk to our experts for more details on how to prevent DDoS attacks. 

You will restrict the harm even if you cannot avoid it entirely with the right precautions in place. The key is to get involved and develop your defenses soon. If an intrusion happens, you can maintain a list of source IP addresses and other information for future analysis in case of a follow-up attack. 

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