
Ivan Nardi contributed to the ntop/nDPI repository, delivering robust protocol detection and network analysis features over 17 months. He engineered enhancements in traffic classification, fuzz testing, and build automation, focusing on reliability and maintainability. Ivan refactored core C and C++ components to improve memory safety, protocol parsing, and test coverage, while expanding support for protocols like SIP, Blizzard, and Syncthing. His work included refining configuration management, strengthening CI/CD pipelines, and updating documentation for user clarity. By addressing edge-case bugs and optimizing packet inspection logic, Ivan ensured more accurate detection, streamlined deployments, and improved the overall stability of the codebase.
April 2026 monthly summary for ntop/nDPI focused on strengthening protocol detection reliability, expanding test coverage, and stabilizing HTTP classification. Key features delivered include: (1) IRC protocol detection overhaul—removed non-functional IRC detection over HTTP and refined IRC packet detection to improve efficiency and reliability; (2) fuzz testing enhancements—updated the fuzzing dictionary with new HTTP content types and signatures and removed outdated entries to broaden protocol coverage. Major bugs fixed include: RPC_OUT_DATA classification bug fix—corrects the string length parameter to ensure accurate HTTP method recognition. Overall impact: improved accuracy and reliability of protocol detection, reduced misclassifications, and broader protocol support, enabling more robust network visibility and policy enforcement. Technologies/skills demonstrated: C-level protocol detection work, low-level packet processing, fuzzing and dictionary management, and maintainability practices with targeted commits. Business value: enhances telemetry quality, accelerates incident diagnosis, and supports stronger security and policy enforcement with lower regression risk.
April 2026 monthly summary for ntop/nDPI focused on strengthening protocol detection reliability, expanding test coverage, and stabilizing HTTP classification. Key features delivered include: (1) IRC protocol detection overhaul—removed non-functional IRC detection over HTTP and refined IRC packet detection to improve efficiency and reliability; (2) fuzz testing enhancements—updated the fuzzing dictionary with new HTTP content types and signatures and removed outdated entries to broaden protocol coverage. Major bugs fixed include: RPC_OUT_DATA classification bug fix—corrects the string length parameter to ensure accurate HTTP method recognition. Overall impact: improved accuracy and reliability of protocol detection, reduced misclassifications, and broader protocol support, enabling more robust network visibility and policy enforcement. Technologies/skills demonstrated: C-level protocol detection work, low-level packet processing, fuzzing and dictionary management, and maintainability practices with targeted commits. Business value: enhances telemetry quality, accelerates incident diagnosis, and supports stronger security and policy enforcement with lower regression risk.
March 2026 (2026-03) monthly summary for ntop/nDPI. Focused on delivering robust network analysis, enhanced observability, and solid QA/documentation to improve data accuracy, troubleshooting speed, and overall system reliability.
March 2026 (2026-03) monthly summary for ntop/nDPI. Focused on delivering robust network analysis, enhanced observability, and solid QA/documentation to improve data accuracy, troubleshooting speed, and overall system reliability.
Month: 2026-02 — ntop/nDPI Concise summary: This month focused on strengthening fuzz testing infrastructure, expanding protocol coverage, and improving build/test reliability while delivering targeted improvements in fuzzing safety and test automation. The work reduced risk in protocol detection, increased coverage of edge cases, and enhanced runtime stability through type-safety fixes and new fuzzers. Key themes: - Fuzz testing robustness and testing infrastructure across configuration loading, allocation failure handling, input size limits, protocol coverage, and build/test tooling workflows; enabled configuration-driven behavior that improves reliability and safety of fuzzing for protocol detection. - Safety and stability: corrected a pointer type mismatch in fuzzing helpers to improve runtime safety and reduce potential undefined behavior. - Coverage expansion: added a dedicated fuzzer for ndpi_match_custom_category and associated corpus tooling to improve detection coverage for complex protocol scenarios.
Month: 2026-02 — ntop/nDPI Concise summary: This month focused on strengthening fuzz testing infrastructure, expanding protocol coverage, and improving build/test reliability while delivering targeted improvements in fuzzing safety and test automation. The work reduced risk in protocol detection, increased coverage of edge cases, and enhanced runtime stability through type-safety fixes and new fuzzers. Key themes: - Fuzz testing robustness and testing infrastructure across configuration loading, allocation failure handling, input size limits, protocol coverage, and build/test tooling workflows; enabled configuration-driven behavior that improves reliability and safety of fuzzing for protocol detection. - Safety and stability: corrected a pointer type mismatch in fuzzing helpers to improve runtime safety and reduce potential undefined behavior. - Coverage expansion: added a dedicated fuzzer for ndpi_match_custom_category and associated corpus tooling to improve detection coverage for complex protocol scenarios.
January 2026 monthly summary for ntop/nDPI focused on delivering key features, stabilizing TLS analysis, and hardening protocol handling. Highlights include extending protocol classification to app-type protocols (RTSP and Syncthing), improving TLS block data handling and test coverage, and fixing a critical uninitialized-value issue in PPP header processing. These changes enhance network visibility, policy enforcement accuracy, and runtime reliability, delivering business value with lower risk and increased confidence for deployments.
January 2026 monthly summary for ntop/nDPI focused on delivering key features, stabilizing TLS analysis, and hardening protocol handling. Highlights include extending protocol classification to app-type protocols (RTSP and Syncthing), improving TLS block data handling and test coverage, and fixing a critical uninitialized-value issue in PPP header processing. These changes enhance network visibility, policy enforcement accuracy, and runtime reliability, delivering business value with lower risk and increased confidence for deployments.
December 2025 ntop/nDPI: Achieved measurable improvements in build reliability, packaging quality, and cross‑platform CI. The changes streamlined test execution from the build tree, tightened tarball contents, expanded CI coverage (including FreeBSD), and added SIP metadata configuration options, delivering faster release readiness and a smoother developer/user experience.
December 2025 ntop/nDPI: Achieved measurable improvements in build reliability, packaging quality, and cross‑platform CI. The changes streamlined test execution from the build tree, tightened tarball contents, expanded CI coverage (including FreeBSD), and added SIP metadata configuration options, delivering faster release readiness and a smoother developer/user experience.
November 2025: ntop/nDPI delivered user-facing documentation improvements, hardened build and test infrastructure, and a core protocol classification fix. The work increased documentation clarity, cross-platform reliability, and classification accuracy, enabling faster and more reliable deployments.
November 2025: ntop/nDPI delivered user-facing documentation improvements, hardened build and test infrastructure, and a core protocol classification fix. The work increased documentation clarity, cross-platform reliability, and classification accuracy, enabling faster and more reliable deployments.
Month 2025-10: Delivered key ntop/nDPI enhancements and stability fixes focused on classification accuracy, configurability, and release hygiene. Key outcomes include improved network traffic classification accuracy with unified protocol ID mapping, robust TLS JA4C fingerprint handling, flexible parsing of custom protocol rules, richer protocol classification statistics, and packaging/docs/test data alignment fixes. Business value: higher detection reliability, more adaptable rule configuration with better test coverage, deeper visibility into protocol results, and streamlined distributions and documentation to support release readiness.
Month 2025-10: Delivered key ntop/nDPI enhancements and stability fixes focused on classification accuracy, configurability, and release hygiene. Key outcomes include improved network traffic classification accuracy with unified protocol ID mapping, robust TLS JA4C fingerprint handling, flexible parsing of custom protocol rules, richer protocol classification statistics, and packaging/docs/test data alignment fixes. Business value: higher detection reliability, more adaptable rule configuration with better test coverage, deeper visibility into protocol results, and streamlined distributions and documentation to support release readiness.
September 2025 ntop/nDPI monthly summary focusing on stability, debug visibility, and configurability of the fingerprint pipeline. Delivered critical build reliability work, robust bug fixes, and test stability improvements.
September 2025 ntop/nDPI monthly summary focusing on stability, debug visibility, and configurability of the fingerprint pipeline. Delivered critical build reliability work, robust bug fixes, and test stability improvements.
Performance-review-ready monthly summary for 2025-08 focused on reliability, safety, and detection accuracy for ntop/nDPI. The month centers on stabilizing test results, hardening memory safety, and expanding fingerprint-based detection capabilities, while improving documentation for configuration parameters.
Performance-review-ready monthly summary for 2025-08 focused on reliability, safety, and detection accuracy for ntop/nDPI. The month centers on stabilizing test results, hardening memory safety, and expanding fingerprint-based detection capabilities, while improving documentation for configuration parameters.
Month: 2025-07 | ntop/nDPI monthly summary focused on business value, stability, and measurable improvements in protocol detection and traffic classification.
Month: 2025-07 | ntop/nDPI monthly summary focused on business value, stability, and measurable improvements in protocol detection and traffic classification.
June 2025: Delivered stability and accuracy improvements for ntop/nDPI through focused fuzzing enhancements, protocol detection/classification refinements, memory safety fixes, and data/test artifacts updates. These changes improved traffic classification reliability, reduced memory-related risks during domain reload, and kept threat detections aligned with current indicators.
June 2025: Delivered stability and accuracy improvements for ntop/nDPI through focused fuzzing enhancements, protocol detection/classification refinements, memory safety fixes, and data/test artifacts updates. These changes improved traffic classification reliability, reduced memory-related risks during domain reload, and kept threat detections aligned with current indicators.
May 2025 monthly summary for ntop/nDPI: Delivered targeted fixes to improve traffic analysis accuracy, stabilized the build across platforms, and simplified detection logic. Key achievements include bug fixes for UltraSurf protocol detection, Windows/Python binding compatibility, codebase cleanup, and test data synchronization to ensure reliable verification and benchmarking.
May 2025 monthly summary for ntop/nDPI: Delivered targeted fixes to improve traffic analysis accuracy, stabilized the build across platforms, and simplified detection logic. Key achievements include bug fixes for UltraSurf protocol detection, Windows/Python binding compatibility, codebase cleanup, and test data synchronization to ensure reliable verification and benchmarking.
Concise monthly summary for 2025-04 focusing on key features delivered, major fixes, impact, and technologies. Highlights include Signal Cache Configuration and Fuzzing Enhancements in ntop/nDPI and Documentation for NDPI_PROTOCOL_LLM. No major bugs fixed this month; a follow-up to the latest Signal call change stabilized tests. These efforts improve configurability, test robustness, and maintainability, supporting faster feature delivery and better provider integration.
Concise monthly summary for 2025-04 focusing on key features delivered, major fixes, impact, and technologies. Highlights include Signal Cache Configuration and Fuzzing Enhancements in ntop/nDPI and Documentation for NDPI_PROTOCOL_LLM. No major bugs fixed this month; a follow-up to the latest Signal call change stabilized tests. These efforts improve configurability, test robustness, and maintainability, supporting faster feature delivery and better provider integration.
March 2025 ntop/nDPI delivered stability, reliability, and detection improvements across core protocol handling, flow processing, and fuzzing/test configurations. Key enhancements reduced edge-case crashes, aligned risk reporting with analytics needs, and expanded detection coverage for Blizzard ecosystem, while maintaining robust rule handling and encrypted traffic detection.
March 2025 ntop/nDPI delivered stability, reliability, and detection improvements across core protocol handling, flow processing, and fuzzing/test configurations. Key enhancements reduced edge-case crashes, aligned risk reporting with analytics needs, and expanded detection coverage for Blizzard ecosystem, while maintaining robust rule handling and encrypted traffic detection.
February 2025: Delivered improvements in regression testing, DNS parsing robustness, and code cleanliness for ntop/nDPI. These efforts increased test coverage, reduced regression risk for DNS traffic analysis, and improved maintainability of core components, delivering measurable business value through more reliable network analysis and faster iteration cycles.
February 2025: Delivered improvements in regression testing, DNS parsing robustness, and code cleanliness for ntop/nDPI. These efforts increased test coverage, reduced regression risk for DNS traffic analysis, and improved maintainability of core components, delivering measurable business value through more reliable network analysis and faster iteration cycles.
January 2025: Delivered Enhanced nDPI Protocol Detection for ntop/nDPI with macro-controlled header inclusion to support custom protocols and updated domain matching to improve accuracy for Microsoft-related traffic (including microsoftapp.net and ocsp.msocsp.com). Implemented auto-generated domain list updates to reduce manual maintenance and keep detection current. The work was completed via two targeted commits: a minor extension for custom nDPI and a follow-up on auto-generated domain lists. This resulted in improved protocol detection accuracy, reduced false negatives for Microsoft traffic, and better overall network visibility for enterprise deployments.
January 2025: Delivered Enhanced nDPI Protocol Detection for ntop/nDPI with macro-controlled header inclusion to support custom protocols and updated domain matching to improve accuracy for Microsoft-related traffic (including microsoftapp.net and ocsp.msocsp.com). Implemented auto-generated domain list updates to reduce manual maintenance and keep detection current. The work was completed via two targeted commits: a minor extension for custom nDPI and a follow-up on auto-generated domain lists. This resulted in improved protocol detection accuracy, reduced false negatives for Microsoft traffic, and better overall network visibility for enterprise deployments.
November 2024 monthly summary for ntop/nDPI focused on expanding protocol coverage, enhancing detection accuracy, and improving reliability. Key features delivered include SIP protocol enhancements, Paramount+ protocol support with updated domain lists, and risk scoring/test data alignment, along with a Wireshark dissector bug fix.
November 2024 monthly summary for ntop/nDPI focused on expanding protocol coverage, enhancing detection accuracy, and improving reliability. Key features delivered include SIP protocol enhancements, Paramount+ protocol support with updated domain lists, and risk scoring/test data alignment, along with a Wireshark dissector bug fix.

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