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Possible Snort Bug
From: "Dan Garbar" <dgarbar () americanbeef com>
Date: Tue, 16 Apr 2013 11:50:25 -0700

Hi all,

 

I'm a novice, but have found a solution and want to share it with everyone.

 

If someone has any idea how this may have happened, I would gladly like to
hear it.

 

 

I'm using Snort Ver. 2.9.4.1 pkg v. 2.5.5 Built from source

 

I was getting the following error:

 

snort[41480]: FATAL ERROR:
/usr/local/etc/snort/snort_7455_em2/preproc_rules/decoder.rules(1) Unknown
ClassType: protocol-command-decode

 

After working with Joel Esler (Senior Research Engineer, VRT / OpenSource
Community Manager at Sourcefire) who has asked the right questions, I was
able to determine that the following files were empty:

 

/usr/local/etc/snort/snort_7455_em2/classification.config

/usr/local/etc/snort/snort_7455_em2/reference.config

 

So Snort was unable to decode a rule and thus gave me the above error.

 

To fix this I copied the contents from 

/usr/local/etc/snort/classification.config to

/usr/local/etc/snort/snort_7455_em2/classification.config

 

Started Snort and it worked!

 

Please note, I have not been modifying any files before this. This is my
first time in that area. So this empty file business must be either update
related or something else - This I'd like to know.

 

Thanks all.

 

 


IT Administrator - Dano

        

 

 


 

 


 

 


 


 

 

                

 

 

 

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