jknapp
5ce4f910c2
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Corrected the tarpit logic flow to work as intended: 1. Backend tracks 400/401/403/404 error responses via http-response 2. Counter increments AFTER the backend responds with an error 3. Frontend checks counter on SUBSEQUENT requests 4. Tarpit/blocking only applies after error thresholds are reached: - 5+ errors: Potential scanner (no action yet) - 15+ errors: Likely scanner (tarpit if also burst traffic) - 30+ errors: Confirmed scanner (always tarpit) - 50+ errors: Aggressive scanner (block with 429) This ensures: - Normal traffic is never delayed - First requests always go through normally - Only clients that accumulate errors get progressively slowed/blocked - The tarpit is a response to bad behavior, not a preemptive measure 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
27 lines
1.1 KiB
Smarty
27 lines
1.1 KiB
Smarty
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backend {{ name }}-backend
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option forwardfor
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http-request add-header X-CLIENT-IP %[src]
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{% if ssl_enabled %}http-request set-header X-Forwarded-Proto https if { ssl_fc }{% endif %}
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# Define scanning attempt patterns
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acl is_404_error status 404
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acl is_403_error status 403
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acl is_401_error status 401
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acl is_400_error status 400
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acl is_scan_attempt status 400 401 403 404
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# Additional suspicious patterns
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acl suspicious_path path_reg -i \.(php|asp|aspx|jsp|cgi)$
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acl suspicious_path path_reg -i /(wp-admin|phpmyadmin|admin|login|xmlrpc)
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acl suspicious_path path_reg -i \.(env|git|svn|backup|bak|old)
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# Track scan attempts in the frontend stick table
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# This increments the counter AFTER the backend responds with an error
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# The frontend will check this counter on SUBSEQUENT requests
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http-response sc-inc-gpc0(0) if is_scan_attempt
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{% for server in servers %}
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server {{ server.server_name }} {{ server.server_address }}:{{ server.server_port }} {{ server.server_options }}
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{% endfor %}
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