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Distributed Denial Of Service (DDOS) is the intentional paralyzing of a computer network by flooding it with data sent simultaneously from many individual computers (so-called zombies) which are used to stage DDOS attacks

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How do you detect a Memcached DDoS attack on your server?

You can analyze the next tool https://github.com/649/Memcrashed-DDoS-Exploit and create a Snort/Suricata/AIengine signature for it, on the other hand you can follow the approach of volumen of UDP on your …
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Calculate pps for DDoS evaluation

Depends on the attack you want to generate(Attack type), the capacity of your single host (CPU, Memory), and on the network capacity (Bandwidth), and also on the application that is receiving the requ …
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0 votes

Is there any working solution against large SYN Flood request?

You need to check if the attack is using spoof addresses or not, if you can identify the ip address then drop them on a firewall/iptables or whatever you have. if the address are spoofed then you will …
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0 votes

DDoS: calculating server threshold for requests

If you want to know how much your server can cope you need to do a hardening testing with it, there is many factors that you need to take into consideration: What is the server do (file server, auth …
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0 votes

How to understand a single packet embedded with multiple requests?

I think you are talking about HTTP pipelining, that basically is have more than one method on the request. This means that you can have, for example 3 GET operations, on the same request. Check HTTP P …
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0 votes

packets characteristics (src,dst ports) of a DDos amplification attacks

You can find more information here Understanding and mitigating NTP-based DDoS attacks …
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14 votes
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Threshold for DDOS Attack

Nowadays TCP SYN attacks are not common, focus more on UDP amplification attacks over DNS, memcache and other UDP services. On the other hand, if you want to compute the traffic rate you can use the f …
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2 votes

Prevent a bot accessing login page with multiple IPs and massive list of username/ passwords

You are suffering a L7 attack based on your user email, so from my point of view you have the first option that is rate limiting how many times a URI can be called (by the client) per second, for exam …
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1 vote
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How to avoid breaking end-to-end encryption while employing cloud-based DDoS protection?

For a DNS protection you dont need to share your TLS keys with the providers, basically a DNS redirection is that the DNS will point to their servers and then they forward the traffic. This solution d …
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