Snort - the de facto standard for intrusion detection/prevention
the de facto standard in IPS  
Got Source? About Snort About Sourcefire Snort FAQ
Sourcefire Network Security - the creators of Snort
Snort News Snort Downloads Snort Rules Snort Docs Snort Training Snort Forums Snort Community Snort Store
Search Site
Search Rules
Account
email
password
not registered?
can't login?
user preferences
next up previous contents
Next: Format Up: General Rule Options Previous: Format   Contents

metadata

The metadata tag allows a rule writer to embed additional information about the rule, typically in a key-value format. Certain metadata keys and values have meaning to Snort and are listed in Table [*]. Keys other than those listed in the table are effectively ignored by Snort and can be free-form, with a key and a value. Multiple keys are separated by a comma, while keys and values are separated by a space.

Table: Snort Metadata Keys
Key Description Value Format
engine Indicate a Shared Library Rule "shared"
soid Shared Library Rule Generator and SID gid$\vert$sid

The examples in Figure [*] show an stub rule from a shared library rule. The first uses multiple metadata keywords, the second a single metadata keyword, with keys separated by commas.


Subsections
Steven Sturges 2007-10-04
site feedback | Terms of Use | Privacy Policy | forum archives ©2008 Snort and Sourcefire are registered trademarks of Sourcefire, Inc. All rights reserved.