Snort Message - WARNING: No preprocessors configured for policy 0

linux snort
JG4 picture JG4 · Apr 8, 2015 · Viewed 40.8k times · Source

I have installed and configured snort 2.9.7.2 and it is running without a problem. However, my question is: what does the following warning mean?

"No preprocessors configured for policy 0"

This message shows when I run the command:

snort -v

Answer

Arun Kaushal picture Arun Kaushal · Dec 31, 2015

This message indicates that no snort preprocessor is loaded. In order to get rid of this warning, please use the command: snort -v -c /etc/snort/snort.conf

Please make sure that the configuration file /etc/snort/snort.conf is present and preprocessors are enabled in the configuration file.

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