implementing-taxii-server-with-opentaxii

# Implementing TAXII Server with OpenTAXII ## Overview TAXII (Trusted Automated eXchange of Intelligence Information) is an OASIS standard protocol for exchanging cyber threat intelligence over HTTPS. OpenTAXII is an open-source TAXII server implementation by EclecticIQ that supports TAXII 1.x, while the OASIS cti-taxii-server provides a TAXII 2.1 reference implementation. This skill covers deploying a TAXII server, configuring collections for threat intelligence feeds, publishing STIX 2.1 bundles, and integrating with SIEM/SOAR platforms for automated indicator ingestion. ## When to Use - When deploying or configuring implementing taxii server with opentaxii capabilities in your environment - When establishing security controls aligned to compliance requirements - When building or improving security architecture for this domain - When conducting security assessments that require this implementation ## Prerequisites - Python 3.9+ with `medallion`, `stix2`, `taxii2-client`, `opentaxii`, `cabby` libraries - Docker and Docker Compose for containerized deployment - Understanding of STIX 2.1 objects (Indicator, Malware, Attack Pattern, Relationship) - Familiarity with REST APIs and HTTPS configuration - TLS certificates for production deployment ## Key Concepts ### TAXII 2.1 Architecture TAXII 2.1 defines three services: Discovery (find available API roots), API Root (entry point for collections), and Collections (repositories of CTI objects). Collections support two acc...