UNBOUND-HOST(1) Unbound UNBOUND-HOST(1) (NAME) unbound-host - DNS Unbound 1.26.0. (SYNOPSIS) unbound-host [-C configfile] [-vdhr46D] [-c class] [-t type] [-y key] [-f keyfile] [-F namedkeyfile] hostname (DESCRIPTION) unbound-host Unbound (hostname) . -v : (secure) (insecure) / (bogus ). . . -C unbound -r resolv.conf . : hostname ( DNS ). IPv4 IPv6 (reverse lookup) . -h . -v (verbose) . (Secure) NXDOMAIN ( ) nodata ( ) . (Insecure) . / (Bogus ) . -d stderr. -d . -d -d . -c IN ( ) . -t . IPv4 IPv6 . -y (trust anchor). . DS DNSKEY . : -y "example.com DS 31560 5 1 1CFED84787E6E19CCF9372C1187325972FE546CD" -D DNSSEC . /etc/trusted-key.key . -f . DS DNSKEY -y . (zone file) dig drill . -F named.conf BIND . trusted-key {}; . -C unbound.conf libunbound(3) . . -r /etc/resolv.conf DNS ( DHCP ) . resolv.conf(5). DNSSEC . -4 IPv4 . -6 IPv6 . (EXAMPLES) . . $ unbound-host www.example.com $ unbound-host -v -y "example.com DS 31560 5 1 1CFED84787E6E19CCF9372C1187325972FE546CD" www.example.com $ unbound-host -v -y "example.com DS 31560 5 1 1CFED84787E6E19CCF9372C1187325972FE546CD" 192.0.2.153 (EXIT STATUS) unbound-host 1 0 . 0 1 . (SEE ALSO) unbound.conf(5), unbound(8). (AUTHORS) Unbound CREDITS . (COPYRIGHT) 1999-2026, NLnet Labs 1.26.0 August 4, 2026 UNBOUND-HOST(1)