How to stop a DDoS attack?

Philippe Gaucher

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I don't know it was a DDOS attack on my site or not but it was flood with a big traffic in seconds and my website downs immediately. How to check if it is a DDOS attack and how to stop a DDoS attack? Are there any services out there offering type of this service?

Thanks
Philippe G
 

VirtuBox

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Try to use Cloudflare, it should block most of the bad traffic and it's totally free.

You just have to register at cloudflare.com and to follow the guide because it require to edit your nameserver. Then it should protect your website if the DDoS is not too strong.
 

PallaviG

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Reasons for DDOS Attack -

Extortion - the attacker threatens an attack (perhaps with a demonstration), and demands money to avoid it.
Retaliation - the attacker is responding to something you did or said, or just doesn't like you.
Misdirection - the attack is intended to distract you from some other event (attack) elsewhere.


How to Prevent a DoS attack -
Purchase a lot of bandwidth - Though being a tough solution and also the most expensive one, it is beneficial. If tons of bandwidth is available, it becomes difficult for the attacker to generate a DoS attack because it's more bandwidth that an attacker has to clog.

Use DoS attack detection technology - Installing intrusion prevention system and firewall manufacturers also help prevent DoS as they include signature detection and connection verification techniques that limit the success of DoS attacks.

Prepare for DoS response - Using of controlling and rate-limiting technologies can reduce the DoS attack effects. When the DoS attack occurs one such response mode stops all new inbound connections, allowing continuation ofestablished connections and new outbound connections.
 

Anonymously

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You can use Cloudflare (free or paid option), manually proxy an IP that is prone to attacks, or nullroute the IP so that it doesn't harm the rest of your network.
 

CrazeHostBee

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For cheaper solutions Cloudflare beats them all. Even the free package is enough to clean up to 80% of bad traffic. High rated ddos protection services would be BitNinja, Incapsula, BlockDos, Imperva and others.

For a small to medium scale business cloudflare's first two packages works wonders. But if you are in big business category, getting a paid ddos protection would highly recommended as every second of downtime is bad for business.

Do not forget, most of these ddos protection providers do offer free trails. Cheers
 

StartVM

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If you need the fine print in CloudFlare's TOS (free plan), they can do what they wish with your network traffic, and they essentially own it. I would recommend paying a company such as BitNinja to manage your DDOS protection.
 
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