The Evolution of DNS Security: From Trust Crisis to Encrypted Future
2025-05-24
Initially lacking robust security mechanisms, DNS was vulnerable to various attacks, including cache poisoning and man-in-the-middle exploits. DNSSEC addressed this by adding cryptographic authentication and data integrity, but adoption remains slow. Internationalized Domain Names (IDNs) solved DNS's ASCII limitations, enabling multilingual internet access. Recently, encrypted DNS protocols like DoH, DoT, DoQ, and ODoH have boosted user privacy and performance, while introducing trade-offs regarding network visibility and operational complexity.
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