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IP rate limiting

“IP rate limiting reduces anomalous requests from hitting your website”

IP rate limiting will prevent a webserver from being overloaded by HTTP requests. Limits can be set to the total amount of website traffic, or per source IP address. Thresholds can be set for a certain amount of time. Per website or website URL. When a time limit with its total request limit is passed, you can set an IP block or captcha validation to every source IP request.

What is Qbine’s rate limiter?

When using Qbine, all HTTP requests are monitored. Qbine checks all requests per source IP and counts the total amount for a certain period of time. With this information, all kinds of actions are enabled. Examples of these actions are blocking or enabling a reCaptcha. Multiple rate-limits with different thresholds can be created by a web interface or API, which allows for personalised rate-limits for every website.

These rate-limits can be used for all kinds of situations. For example, it’s one of the DDoS protection Layer 7 layers. These application layer attacks are stressing the website hosting itself where the attacker tries to flood the web hosting environment with millions of HTTP requests per second.

How does the rate limiter work?

A rate limit is set for all incoming requests at 500 requests per second. Qbine acts when the rate hits the 500 requests per second by defending with the action that has previously been set up. This can either be a block or a captcha. The moment there are more requests than the 500 that are set within the second, every request above 500 is blocked.

Qbine’s rate limiter can also be set up to block or throw a captcha for single IP’s. If there is a certain script, for example to brute force the login page that is coming from a single IP, the script can be blocked with a rate limiter.
Inside the client panel, there is an option to choose between a single IP or all traffic. Once decided, the rate and the amount of time in seconds are set. Qbine has the ability to set up multiple rate limits, even for specific URL’s. The last thing to configure is the action from the rate limit. This can be either a block or a captcha.

3 rate limits are set up. The first rate limit is for the login URL. The rate is set to 50 per second and will throw a captcha to see if the user is human or a script. The second rate limit is set for a single IP source at 200 requests per second. The URL is left blank so it is set for the whole website. This rate limit will throw a block. The last rate limit is set for all traffic and it is set to 5000 requests per second. When triggered, the rate limiter will throw a captcha. When Qbine notices a peak in traffic, it will show a captcha to the user. The user can continue using the website after confirming he/she is human.

qbines rate-limit

Qbine’s Rate limiter, graphs and logs

Qbine protects from DDoS attacks on layer 7 with the rate limiter. Multiple rates can be set up, for single or all traffic. Rate limits can also be set up for a specific URL with the choice of a block or captcha, depending how it is designed. Qbine shows every triggered rate limit by the means of graphs. It will show two sorts of graphs: the blocked graph and the captcha graph. This is how Qbine shows the amount when a rate limit is triggered. Inside the logs and reports, rate limits are shown again.

Protect yourself from DDoS attacks now!

The rate limiter is one of the features we offer to protect yourself against a DDoS attack on layer 7. Wo what are you waiting for, Start you free trail and say goodbye to DDoS attacks and brute force attempts.