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News and guides

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

DNS Tunneling: Covert C2 Channels, Data Exfiltration & Defense

Analyze how malware abuses DNS port 53 for covert command-and-control and data exfiltration, statistical entropy detection, and how WireGuard tunnels prevent leakage.

October 30, 2026 · 6 min read

Security
DNS Amplification Attacks: EDNS0 Exploits, BCP 38 & VPN Anti-Spoofing
October 30, 2026 · 6 min read
Security
TCP SYN Floods, SYN Cookies & WireGuard Stateless DoS Defense
October 30, 2026 · 7 min read
Security
ICMP Redirect Attacks: Route Poisoning, LAN Interception & VPN Defense
October 30, 2026 · 7 min read
Security
TLS 1.3 0-RTT Early Data Replay Attacks: RFC 8470 Defenses & L3 Shielding
October 30, 2026 · 6 min read
Security
TCP RST Injection & Blind In-Window Attacks: RFC 5961 Defenses & Shielding
October 30, 2026 · 7 min read
Protocols
DNS-over-QUIC (DoQ): Eliminating Head-of-Line Blocking and Enhancing DNS Privacy
October 30, 2026 · 7 min read
Performance
TCP BBR vs CUBIC: Maximizing VPN Throughput and Eliminating Bufferbloat
October 30, 2026 · 7 min read
Protocols
Path MTU Discovery & Black Hole Detection: Solving VPN Stalls & MSS Clamping
October 30, 2026 · 8 min read
Privacy
EDNS Client Subnet (ECS) & Geo-Profiling: How RFC 7871 Leaks Your Location
October 30, 2026 · 6 min read