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Posts tagged “load-balancing”

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  1. 14 July 2026·5 min read

    SNAT ate my source IP

    A LoadBalancer service with the default traffic policy rewrites every incoming packet's source to the node's own address — so by the time a network policy sees it, the real client is gone. You cannot allowlist a sender the network has already erased.

    • security
    • networking
    • cilium
    • kubernetes
    • load-balancing
jonny@bztmon:~ · session receipt✓ Synced · Healthy

$ whoami

Jonathon Wright— Platform & Infrastructure Engineer

$ traceroute www.bztmon.com

served from a homelab Kubernetes cluster, over an encrypted tunnel

$ git log -1 --format=receipt

HEAD ac333e2· built 2026-07-14 08:44Z· reconciled by ArgoCD

$ contact --priority low-ms

ping me on LinkedIn or email — everything else is best-effort delivery.

$

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