I'm interested in the Zero Trust model in networking. What are the core principles we should consider when implementing Zero Trust in an existing infrastructure? How can we practically apply this principle without drastically impacting performance, and which technologies best support this? What experiences have you had with micro-segmentation, dynamic policies, and continuous authentication? Let's discuss the key building blocks together and develop possible case studies. Who has literature or practical recommendations that provide a good starting point? I look forward to your ideas.
Zero Trust Network – Principles, Implementation & Practical Questions
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Compared to traditional perimeter-based approaches, where everything behind a single firewall is considered trustworthy, Zero Trust requires separate authentication and micro-segmentation for every access ("never trust, always verify"). Technologies like Software-Defined Perimeter (e.g., Zscaler) or Cisco Tetration enable dynamic policies and continuous authentication without significantly impacting performance, as the controls are applied locally at the host. For getting started, I recommend the book *Zero Trust Networks* by Evan Gilman and the NIST whitepaper SP 800-207.