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What are the techniques to mitigate a DOS/DDOS attack?


DDoS mitigation solutions offer many different strategies to protect a company’s infrastructure against a DDOS attack by absorbing the load on the targeted servers.

A Distributed Denial of Service (DDoS) attack is a coordinated attempt to make a service unavailable by overwhelming it with traffic from multiple sources. To mitigate a DDoS attack, a business or organization can take action to address the issue either on the user side or the provider side. 

On the user side, user education is important to prepare the users for an attack. Some of the ways to educate users include providing instructions on how to protect themselves while surfing the web or warning them that they are vulnerable to a DOS attack. 

On the provider side, providers can strengthen their servers with better hardware and software. These include having redundant servers to ensure that even if one server is compromised, there are still two or more backup servers ready to take over for them. 

Monitor for anomalous traffic patterns 

Monitoring for anomalous traffic patterns is one technique to mitigate a DOS/DDOS attack. Some solutions include implementing firewalls, which could filter out unwanted data requests, and utilizing intrusion detection and prevention systems, which could detect and stop attacks. Intrusion Prevention Systems (IPS) and Intrusion Detection Systems (IDS) could also help to monitor and mitigate an attack. 

Log suspicious network activity 

One of the techniques to mitigate a DOS/DDOS attack is to use a DDoS mitigation solution. DDoS mitigation solutions offer many different strategies to protect a company’s infrastructure against a DDOS attack by absorbing the load on the targeted servers. 

A DDoS mitigation solution can absorb the load by continually sending out packets to the source of the DDOS attack and thus, halting the attack. Some DDoS mitigation solutions could include Cloud DDoS Protection or Firewall protection. 

Apply the normal good practice of securing your network 

Security experts warn that a data breach is inevitable. They recommend starting with a layered security strategy. One of the most important lines of defense is the network perimeter. Make sure all access points are protected with strong firewalls, including any endpoints on the intranet that are used for remote access to the network. 

Related  The Complete Guide for L7 DDoS Attack Mitigation

Install access control measures for nodes in your network 

Keep your security tight by only allowing the fewest amount of people necessary to access your network. – implement firewalls and intrusion detection systems – create a blacklist of unwanted sources – use intrusion prevention systems – configure the system to limit the number of connections – disable unnecessary network services – install IDS/IPS – assign limited privileges to system accounts – monitor logs for suspicious activity – isolate systems from the network – change default password – use secure protocols, such as HTTPS – configure the server to rate 

Apply the normal good practice of securing your systems 

One technique to mitigate a DOS/DDOS attack is to make use of a company’s in-house DDoS mitigation solution. The security team should also work closely with the IT department to ensure that server power is sufficient, and that application servers are able to handle the load. 

When designing any system to allow for remote access, security should be considered, and the data should be encrypted. 

How to Minimize the Impact of a Distributed Denial of Service Attack 

A distributed denial of service (DDoS) attack is a network-based attack that can strike any company or organization. It is not possible to protect against every type of DDoS attack. However, there are techniques that can be used to mitigate the impact of a DDoS attack. A DDoS mitigation solution is a technique that reduces the bandwidth or CPU usage that an attack can target. 

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