Systems Engineering

Linux Kernel eBPF sk_lookup: Multi-Tenant Socket Routing & Zero-Port Load Balancing

An advanced Linux network systems guide to BPF socket lookup (sk_lookup). We analyze programmatic L4 socket redirection, eliminating port-range limits for multi-tenant services, and zero-copy in-kernel load balancing at 10M packets/sec.

Sachin Sharma
Sachin SharmaCreator
Sep 2, 2026
3 min read
Linux Kernel eBPF sk_lookup: Multi-Tenant Socket Routing & Zero-Port Load Balancing
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An advanced Linux network systems guide to BPF socket lookup (sk_lookup). We analyze programmatic L4 socket redirection, eliminating port-range limits for multi-tenant services, and zero-copy in-kernel load balancing at 10M packets/sec.

Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

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