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conflictMEDIUM2026-05-05 00:15 UTC

Unprivileged LXC + Docker: The runc Sysctl Permission Trap

sysctl: setting key "net.ipv4.ip_local_port_range": Permission denied I saw this error while trying to tune the network stack for a high-concurrency service running in Docker, which itself was hosted inside an unprivileged LXC container on Proxmox. The weird part? I was root inside the container. I

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