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-.TH "unbound\-host" "1" "Jun 13, 2017" "NLnet Labs" "unbound 1.6.3"
-.\"
-.\" unbound-host.1 -- unbound DNS lookup utility
-.\"
-.\" Copyright (c) 2007, NLnet Labs. All rights reserved.
-.\"
-.\" See LICENSE for the license.
-.\"
-.\"
-.SH "NAME"
-.B unbound\-host
-\- unbound DNS lookup utility
-.SH "SYNOPSIS"
-.B unbound\-host
-.RB [ \-vdhr46D ]
-.RB [ \-c 
-.IR class ]
-.RB [ \-t
-.IR type ]
-.I hostname
-.RB [ \-y
-.IR key ]
-.RB [ \-f
-.IR keyfile ]
-.RB [ \-F
-.IR namedkeyfile ]
-.RB [ \-C
-.IR configfile ]
-.SH "DESCRIPTION"
-.B Unbound\-host
-uses the unbound validating resolver to query for the hostname and display
-results. With the \fB\-v\fR option it displays validation 
-status: secure, insecure, bogus (security failure).
-.P
-By default it reads no configuration file whatsoever.  It attempts to reach
-the internet root servers.  With \fB\-C\fR an unbound config file and with
-\fB\-r\fR resolv.conf can be read.
-.P
-The available options are:
-.TP
-.I hostname
-This name is resolved (looked up in the DNS).
-If a IPv4 or IPv6 address is given, a reverse lookup is performed.
-.TP
-.B \-h
-Show the version and commandline option help.
-.TP
-.B \-v
-Enable verbose output and it shows validation results, on every line.
-Secure means that the NXDOMAIN (no such domain name), nodata (no such data)
-or positive data response validated correctly with one of the keys.
-Insecure means that that domain name has no security set up for it.
-Bogus (security failure) means that the response failed one or more checks,
-it is likely wrong, outdated, tampered with, or broken.
-.TP
-.B \-d
-Enable debug output to stderr. One \-d shows what the resolver and validator
-are doing and may tell you what is going on. More times, \-d \-d, gives a
-lot of output, with every packet sent and received.
-.TP
-.B \-c \fIclass
-Specify the class to lookup for, the default is IN the internet class.
-.TP
-.B \-t \fItype
-Specify the type of data to lookup. The default looks for IPv4, IPv6 and
-mail handler data, or domain name pointers for reverse queries.
-.TP
-.B \-y \fIkey
-Specify a public key to use as trust anchor. This is the base for a chain
-of trust that is built up from the trust anchor to the response, in order
-to validate the response message. Can be given as a DS or DNSKEY record.
-For example \-y "example.com DS 31560 5 1 1CFED84787E6E19CCF9372C1187325972FE546CD".
-.TP
-.B \-D
-Enables DNSSEC validation.  Reads the root anchor from the default configured
-root anchor at the default location, \fI@UNBOUND_ROOTKEY_FILE@\fR. 
-.TP
-.B \-f \fIkeyfile
-Reads keys from a file. Every line has a DS or DNSKEY record, in the format
-as for \-y. The zone file format, the same as dig and drill produce.
-.TP
-.B \-F \fInamedkeyfile
-Reads keys from a BIND\-style named.conf file. Only the trusted\-key {}; entries
-are read.
-.TP
-.B \-C \fIconfigfile
-Uses the specified unbound.conf to prime
-.IR libunbound (3).
-.TP
-.B \-r
-Read /etc/resolv.conf, and use the forward DNS servers from there (those could
-have been set by DHCP).  More info in
-.IR resolv.conf (5).
-Breaks validation if those servers do not support DNSSEC.
-.TP
-.B \-4
-Use solely the IPv4 network for sending packets.
-.TP
-.B \-6
-Use solely the IPv6 network for sending packets.
-.SH "EXAMPLES"
-Some examples of use. The keys shown below are fakes, thus a security failure
-is encountered.
-.P
-$ unbound\-host www.example.com
-.P
-$ unbound\-host \-v \-y "example.com DS 31560 5 1 1CFED84787E6E19CCF9372C1187325972FE546CD" www.example.com
-.P
-$ unbound\-host \-v \-y "example.com DS 31560 5 1 1CFED84787E6E19CCF9372C1187325972FE546CD" 192.0.2.153
-.SH "EXIT CODE"
-The unbound\-host program exits with status code 1 on error, 
-0 on no error. The data may not be available on exit code 0, exit code 1
-means the lookup encountered a fatal error.
-.SH "SEE ALSO"
-\fIunbound.conf\fR(5), 
-\fIunbound\fR(8).