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News and guides

Plain-language guides to online privacy and VPN technology, plus updates from VPNRice.

Single Packet Authorization (SPA): Zero-Port Stealth Firewall Defense for VPNs

Explore how Single Packet Authorization (SPA) eliminates open ports, defends VPN gateways against automated scanning, and stops replay attacks via cryptographic packets.

November 2, 2026 · 8 min read

Security
RPKI ASPA: Cryptographic Defense Against BGP Route Leaks and Path Spoofing
November 2, 2026 · 7 min read
Security
VORACLE Attack: How VPN Compression Leaks Data & Why Modern VPNs Ban It
November 2, 2026 · 8 min read
Security
WireGuard Anti-Replay Defense: Sliding Windows & Out-of-Order Delivery
November 2, 2026 · 7 min read
Security
TunnelCrack Defense: Neutralizing LocalNet & ServerIP VPN Route Leaks
November 2, 2026 · 8 min read
Security
WireGuard's Noise Protocol: IKpsk2 Handshake and State Machine Deep Dive
November 2, 2026 · 8 min read
Protocols
Bufferbloat and Active Queue Management in VPN Tunnels: FQ-CoDel vs CAKE
November 1, 2026 · 8 min read
Security
DNSSEC vs Encrypted DNS: Cryptographic Authenticity and Transit Privacy
November 1, 2026 · 6 min read
Security
Encrypted Client Hello (ECH) vs VPN: Stopping Handshake and IP Leaks
November 1, 2026 · 6 min read
Protocols
NAT Traversal and UDP Hole Punching: STUN, TURN, and ICE in Modern VPNs
November 1, 2026 · 7 min read