Hi,
i'm using the following in a backend to rate-limit spider or bad
behavior clients:
backend be_spider
tcp-request inspect-delay 2000ms
tcp-request content accept if WAIT_END
server node01 192.168.1.10:80 maxconn {LOWVALUE}
If now an abuser/spider/crawler is making many requests at the same
time/same second, all requests are delayed for xxxx ms. But if the
delay is over, all requests are bursting anyway at the same point in
time.
What i want to do is to set the inspect-delay in a random fashion for
every request (for example in a range from 1000ms - 2000ms) to
distribute the requests over a timeframe and absorb immensive bursts.
The overall backend capacity is limited with a low maxconn value, but
i have to control bursts of requests also.
Is this possible or is there a different method to accomplish this ?
-----------
Bjoern
