There are just a few signatures for which I want to receive email
notifications, but ignore how to do it
You can configure email based on classification or priority, but note
that you can also configure email based on the SID of an individual
signature. Here's the relevant excerpt from the end of
/etc/nsm/securityonion/sguild.email:
# EMAIL_ENABLE_SIDS: A list of snort IDS (sids) that you want to
enable, but are NOT
# included in EMAIL_CLASSES. NOTE: This overrides EMAIL_DISABLE_SIDS.
# 0=none
set EMAIL_ENABLE_SIDS "1000003"
You can add in the SID from any downloaded rule
(/etc/nsm/rules/downloaded.rules) or any rules you have manually added
to /etc/nsm/rules/local.rules.
Hope that helps!
Thanks,
Doug