Legacy VPN
Definition
Traditional, tunnel-based VPNs that backhaul traffic and require concentrators, often adding latency and operational overhead versus modern zero-trust/ZTNA approaches.
The Complete Glossary of Networking, Cybersecurity, and Cyberwarfare Terms
443 plain-English definitions, from 3G to zero-day exploits. Each term explains how it works, why it matters, and where ZeroTier fits.