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

Linux RPS and RFS: Multi-Core Packet Steering for High-Throughput VPN Gateways

Explore how Linux RPS and RFS steer network packets across CPU cores to balance SoftIRQ loads, preserve cache locality, and slash jitter on VPN gateways.

November 13, 2026 · 6 min read

Security
Linux BPF LSM: Enforcing Kernel-Level Mandatory Access Control on VPN Daemons
November 12, 2026 · 5 min read
Security
Linux eBPF Sockmap and sk_msg: Socket-to-Socket Redirection for VPN Proxies
November 12, 2026 · 5 min read
Security
Linux Kernel Keyring: Protecting In-Memory Cryptographic Keys for VPN Daemons
November 12, 2026 · 5 min read
Performance
Linux MGLRU and PSI: Preventing Memory Latency Spikes in VPN Gateways
November 12, 2026 · 6 min read
Security
Linux Socket MSG_ZEROCOPY: Eliminating Memory Copy Overhead in VPN Egress
November 12, 2026 · 5 min read
Performance
Linux splice and vmsplice: In-Kernel Zero-Copy Splicing for VPN Relays
November 12, 2026 · 6 min read
Performance
Linux UDP GSO & GRO: Super-Packet Aggregation in High-Throughput VPN Gateways
November 12, 2026 · 6 min read
Protocols
Linux AF_XDP & UMEM: Zero-Copy Userspace Packet Datapaths in VPNs
November 11, 2026 · 4 min read
Protocols
Linux Conntrack Offload: High-Scale eBPF State Tracking for VPN Gateways
November 11, 2026 · 5 min read