How to check the trace file by using snort rule

[Qinwen Hu <qhu009 () aucklanduni ac nz>]

Hi all:

I have captured some trace files, and I want to use snort read these files,
I find snort will read trace file and generate general report, such as how
many packets have used TCP protocols and UDP protocols. But I want to check
is any threat packets in my trace file by using Snort rules.
So my question is, are there any commands that I can use to check the trace
file by using the Snort rules. how to use Snort to do this.


Many Thanks for your time.


Regards

Steven

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