NAME

rdapper - a command-line RDAP client.

DESCRIPTION

rdapper is a command-line client for the Registration Data Access Protocol (RDAP), the successor protocol to Whois (RFC 3912). RDAP is currently being developed by the WEIRDS IETF working group, and has not yet been finalized.

This tool will send an RDAP query to an RDAP server over HTTP or HTTPS, parse the JSON response, and display it in human-readable form.

INSTALLING

To install this program type the following commands in the source directory:

perl Makefile.PL
make
make install

USAGE

rdapper [OPTIONS] QUERY

OPTIONS

• --host=HOST (default: rdap.org)

  Specify the host to query. If not set, rdapper uses rdap.org (see below).

• --TYPE=TYPE

  Specify the type of object being queried. Possible values are: domain, entity (also contact), nameserver (also host), autnum and ip. rdapper will detect IPv4 and IPv6 addresses and CIDR networks and AS numbers, and will fall back to domain queries for everything else.

• --follow

  Instructs rdapper to follow links to retrieve full entity information.

• --links

  Display URIs for referenced objects.

• --path=PATH

  Specify a JSONPath query. Any elements in the response which match this path will be printed in JSON format.

  See below for details of JSONPath.

• --tls

  Force use of TLS.

• --insecure

  Disable server certificate checking and hostname verification.

• --username=USERNAME

  Specify a username to be used with Basic Authentication.

• --password=PASSWORD

  Specify a password to be used with Basic Authentication.

  Note: if the initial request is redirected, authentication credentials will be sent in the subsequent request to the target server, so users should consider whether these credentials might be disclosed inappropriately.

• --cert=CERTIFICATE

  Specify a client SSL certificate to present to the server.

• --key=KEY

  Specify a private key matching the certificate given in --cert.

• --keypass=PASSPHRASE

  Specify a passphrase to decrypt the private key given by --key.

• --raw

  Causes rdapper to emit pretty-printed JSON rather than text output.

• --debug

  Causes rdapper to display the HTTP request and response rather than the text output.

• --lang=LANGUAGE

  Specify a language. This is sent to the server using the Accept-Language header. If unset, the language will be taken from your $LANG environment variable (or en if that is not defined).

• --encoding=ENCODING

  Specify an encoding. This is sent to the server using the Accept-Encoding header. If unset, the encoding will be taken from your $LANG environment variable (or UTF-8 if that is not defined).

JSONPath

You can use JSONPath to specify a subset of the complete response. JSONPath is an XPath-like syntax for querying JSON structures. The following are examples of JSONPath queries:

$.handle        # the handle of an object
$.nameServers[0].name   # the name of a domain's first nameserver
$.entities[0].emails[0] # the first email address of an object's first entity
$.nameServers..name # the names of every nameserver

For a full explanation of the available syntax, see the link below.

USE OF RDAP.ORG

Unless instructed otherwise (via the --host argument), rdapper will send all queries to rdap.org: this server is an aggregator of RDAP services, and will provide an HTTP redirect to the appropriate service where available.

SEE ALSO

• http://tools.ietf.org/wg/weirds/
• https://www.centralnic.com/
• http://rdap.org/
• http://goessner.net/articles/JsonPath/

COPYRIGHT

rdapper is Copyright 2013 CentralNic Ltd. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.