iptables-restore -V (return code: -15)
iptables-restore: unrecognized option '--version'
iptables-restore --help (return code: 1)
Usage: iptables-restore [-c] [-v] [-t] [-h]
[ --counters ]
[ --verbose ]
[ --test ]
[ --help ]
[ --noflush ]
[ --table=<TABLE> ]
[ --modprobe=<command>]