QNAP - What is “[SNMP] DoS detected” system log message? | GOLINE
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QNAP – What is “[SNMP] DoS detected” system log message?

This message will be generated when over 300 packets per second are received by the SNMP service.

If you want to change this behaviour, there are 2 configurable fields in the [SNMP] section of uLinux.conf:


The default value of EnableDetectDDoS is TRUE.
The default value of MaxPacketPerSecond is 300.

If you want to disable the DoS detection, then run the below command:

# setcfg SNMP EnableDetectDDoS FALSE

If you want to increase the maximum number of packets, then run the below command (XXX is the maximum packets per second):

# setcfg SNMP MaxPacketPerSecond XXX

Remember to restart SNMP after changing these settings.

# /etc/init.d/snmp restart


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