Snort mailing list archives

PortVar lookup


From: "Kun, Mike" <mkun () akamai com>
Date: Thu, 1 Jul 2010 14:11:07 -0400

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I just added a new local rule to look for outbound SMTP traffic
exclusive of SMTP servers, but when I try to initialize Snort I get "
FATAL ERROR: /etc/snort/rules/local.rules(1) ***Src PortVar Lookup
failed on ''."

The rule is alert tcp !$SMTP_SERVERS any -> $EXTERNAL_NET $SMTP_PORTS
(msg:"LOCAL: Suspicious SMTP Traffic"; flow:established; content:"EHLO";
offset:0; classtype:misc-activity; sid:1000001;)

This is working fine on an older version of Snort, so I assume I have to
configure something...

- -Mike
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