Last Modified: Oct 06, 2020
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Known Affected Versions:
13.1.0, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52
Opened: May 06, 2018
The measured number of pending requests is two times higher than actual.
Server stress mechanism is more sensitive than planned. A temporary traffic spike can cause unnecessary DoS mitigation start. Note: The admd process provides stress-based DoS detection and mitigation control. When admd is not running, there is no stress-based anomaly detection or behavioral statistics aggregation.
Virtual server configured with a Behavioral DoS profile.
Modify the adm.health.sensitivity value. For example, to change health sensitivity from 50 to 500, run the following command: tmsh modify sys db adm.health.sensitivity value 500
Fixed initial adm flow sampling, so that the measured number of pending requests now equals actual.