iptables-locker, test tool for grabbing the iptables lock. Usage: iptables-locker <duration> time="2026-11-09T14:32:49Z" level=fatal msg="Failed to parse usage" func=main.main file="/home/build/felix/fv/iptables-locker/iptables-locker.go:43" error="time: invalid duration \"help\""