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Adds two nginx variables usable in log_format / access_log: - $modsecurity_intervention: "1" if ModSecurity intervened, "0" otherwise - $modsecurity_triggered_rules: comma-separated IDs of all matched rules
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what
Add two variables to the module:
$modsecurity_interventionand$modsecurity_triggered_rules.$modsecurity_intervention: set to 1 if ModSecurity triggered a disruptive intervention.$modsecurity_triggered_rules: a comma-separated list of matched rule IDs.why
NGINX logs already contain a lot of useful data, but they don't include ModSecurity events. That makes it hard to correlate what you see in NGINX logs with what shows up in ModSecurity audit logs.
If you're sending logs to an "append-only" databsae, theres no easy way to correlate the two later. And trying to sync them beforehand usually means building a complex buffering and matching system.