/usr/bin/unbound-host: invalid option -- '-'
Usage:	unbound-host [-C configfile] [-vdhr46] [-c class] [-t type]
                     [-y key] [-f keyfile] [-F namedkeyfile] hostname
  Queries the DNS for information.
  The hostname is looked up for IP4, IP6 and mail.
  If an ip-address is given a reverse lookup is done.
  Use the -v option to see DNSSEC security information.
    -t type		what type to look for.
    -c class		what class to look for, if not class IN.
    -y 'keystring'	specify trust anchor, DS or DNSKEY, like
			-y 'example.com DS 31560 5 1 1CFED8478...'
    -D			DNSSEC enable with default root anchor
    			from /etc/unbound/root.key
    -f keyfile		read trust anchors from file, with lines as -y.
    -F keyfile		read named.conf-style trust anchors.
    -C config		use the specified unbound.conf (none read by default)
			pass as first argument if you want to override some
			options with further arguments
    -r			read forwarder information from /etc/resolv.conf
      			breaks validation if the forwarder does not do DNSSEC.
    -v			be more verbose, shows nodata and security.
    -d			debug, traces the action, -d -d shows more.
    -4			use ipv4 network, avoid ipv6.
    -6			use ipv6 network, avoid ipv4.
    -h			show this usage help.
Version 1.26.2
BSD licensed, see LICENSE in source package for details.
Report bugs to unbound-bugs@nlnetlabs.nl or https://github.com/NLnetLabs/unbound/issues