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security

How to Use SSHFP Records in DNS to Verify SSH Host Keys and Prevent Man-in-the-Middle Attacks

SSHFP (SSH Fingerprint) records in DNS let clients automatically verify SSH host keys before connecting, blocking man-in-the-middle attacks. This article explains how to generate and publish SSHFP records, configure clients to verify them automatically, and why combining SSHFP with DNSSEC provides strong security for remote server access.

Jul 16, 2026 1 views

security

How to Use DANE (DNS-Based Authentication of Named Entities) to Secure Email and TLS Without Relying on Certificate Authorities

Learn how DANE (DNS-Based Authentication of Named Entities) can secure email and TLS connections without relying entirely on certificate authorities. This guide explains DANE’s mechanics, practical implementation steps for SMTP and HTTPS, and tips to reduce CA-related risk using DNSSEC-protected TLSA records.

Jul 13, 2026 5 views

security

DNSSEC Explained: How It Protects Your Domain from DNS Spoofing and Cache Poisoning

DNSSEC (Domain Name System Security Extensions) protects websites from DNS spoofing and cache poisoning by cryptographically signing DNS records. This article explains how DNSSEC works, why it matters, and provides practical steps to enable it on your domain—helping you keep visitors safe from redirect attacks and impersonation.

May 10, 2026 122 views