SYNTAX
tlsa [-h] [--verify] [-create] [--version] [-4] [-6--insecure] [--resolv.conf /PATH/TO/RESOLV.CONF] [--port PORT] [--starttls {auto,smtp,imap,pop3,ftp}] [--protocol {tcp,udp,sctp}] [--ponly-rr] [--rootkey /PATH/TO/ROOT.KEY] [--ca-cert /PATH/TO/CERTSTORE] [--debug] [--quiet] [--certificate CERTIFICATE] [--output {rfc,generic,both}] [--usage {0,1,2,3}] [--selector {0,1}] [-mtype {0,1,2}] hostname
DESCRIPTION
tlsa generates RFC-6698 TLSA DNS records. To generate these records for older nameserver implementations that do not yet support the TLSA record, specify --output generic to output the tlsa data in Generic Record (RFC-3597) format. Records are generated by connecting to the website using SSL and grabbing the (EE) certificate and the CA chain. Depending on the type and selector used, this information is used to generate TLSA records. Currently. tlsa has no AXFR support for en-mass TLSA record generation.
OPTIONS
--create
- Create a TLSA record
--verify
- Verify a TLSA record
--protocol tcp | udp | sctp
- Use a specific transport protocol (default: tcp)
--resolvconf FILE
- Specify a custom resolv.conf file (default: /etc/resolv.conf). Pass empty value (--resolvconf="") to disable default.
--port PORT
- Use specified port (default: 443)
--starttls no | smtp | imap | pop3 | ftp
- Start script type for protocols which need special commands to start a TLS connection. Supported are 'ftp' (port 21), 'smtp' (port 25), 'pop3' (port 110) and 'imap' (port 143). The default selects the type based on the port number. The value 'no' overrides auto detection.
--only-rr
- Only print the DNS TLSA record
--certificate file.crt
- Use specified certificate file, instead of retrieving the certificate from the server. Can be a single cert or a complete chain.
--ca-cert directory
- Use specified directory containing CA bundles for CA validation (default: /etc/pki/tls/certs)
--rootkey filename
- Use specified file to read the DNSSEC root key (in anchor or bind format)
--output rfc | generic | both
- Output format of TLSA record. "TLSA" for rfc, "TYPE52" for generic (default: rfc)
--usage 0 | 1 | 2 | 3
- Usage type: public CA (0), EE match validated by public CA (1), private CA (2), private EE (3) (default: 3)
--selector 0 | 1
- The selector type describes what the type covers - full certificate (0) or public key (1) (default: 0)
--mtype 0 | 1 | 2
- Type of the TLSA data. Exact match on content (0), SHA256 (1) or SHA512 (2) (default: 0)
If neither create or verify is specified, create is used.
REQUIREMENTS
tlsa requires the following python libraries: unbound, m2crypto, argparse and ipaddr
BUGS
ipv4/ipv6 handling
EXAMPLES
typical usage:
tlsa --verify -4 nohats.ca
tlsa --create --insecure fedoraproject.org
AUTHORS
Pieter Lexis <[email protected]>
COPYRIGHT
Copyright 2012
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See <m[blue]http://www.fsf.org/copyleft/gpl.txtm[]>.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License (file COPYING in the distribution) for more details.