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After some debugging, I've found that the issue is due to the BASE caching code. It looks (among others) for '(spp_%' instead of 'spp_%', which is the correct start of the arpspoof preprocessor signature name. So i changed the part of the query that is created from line 234 in base_cache.inc.php: /* Preprocessor events only */ # The original "(sig_name ...


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That looks to me like it would alert if it receives traffic from the defined external network ($EXTERNAL_NET) to your defined home network ($HOME_NET) where the TCP fin flag is set on it's own. This could be taken to indicate a piece of scanning software, as in a standard TCP communication FIN isn't sent on it's own, it goes along with an ACK flack (there's ...


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No, Snort is not designed to log all application and events occurring in a system. A HIDS is not just a NIDS limited to just one host; it's a separate and additional layer of protections that can only be performed locally (like looking at files, processes, logs, and user contexts). Snort doesn't even try to do any of that.



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