gnutls-cli-debug(1)						   User Commands					       gnutls-cli-debug(1)

NAME

       gnutls-cli-debug - GnuTLS debug client

SYNOPSIS

       gnutls-cli-debug [-flag [value]]... [--opt-name[[=| ]value]]...

       Operands and options may be intermixed.	They will be reordered.

DESCRIPTION

       TLS  debug  client.  It	sets  up  multiple TLS connections to a server and queries its capabilities. It was created to assist in debugging
       GnuTLS, but it might be useful to extract a TLS server's capabilities.  It connects to a TLS server, performs tests and print the  server's
       capabilities.  If  called  with	the  `-v' parameter more checks will be performed.  Can be used to check for servers with special needs or
       bugs.

OPTIONS

       -d number, --debug=number
	      Enable debugging..  This option takes an integer number as its argument.	The value of number is constrained to being:
		  in the range	0 through 9999

	      Specifies the debug level.

       -V, --verbose
	      More verbose output.  This option may appear an unlimited number of times.

       -p number, --port=number
	      The port to connect to.  This option takes an integer number as its argument.  The value of number is constrained to being:
		  in the range	0 through 65536

       -h, --help
	      Display usage information and exit.

       -!, --more-help
	      Pass the extended usage information through a pager.

       -v [{v|c|n}], --version[={v|c|n}]
	      Output version of program and exit.  The default mode is `v', a simple version.  The `c' mode will print copyright information and
	      `n' will print the full copyright notice.

EXAMPLES

	   $ ../src/gnutls-cli-debug localhost
	   Resolving 'localhost'...
	   Connecting to '127.0.0.1:443'...
	   Checking for SSL 3.0 support... yes
	   Checking whether %COMPAT is required... no
	   Checking for TLS 1.0 support... yes
	   Checking for TLS 1.1 support... no
	   Checking fallback from TLS 1.1 to... TLS 1.0
	   Checking for TLS 1.2 support... no
	   Checking whether we need to disable TLS 1.0... N/A
	   Checking for Safe renegotiation support... yes
	   Checking for Safe renegotiation support (SCSV)... yes
	   Checking for HTTPS server name... not checked
	   Checking for version rollback bug in RSA PMS... no
	   Checking for version rollback bug in Client Hello... no
	   Checking whether the server ignores the RSA PMS version... no
	   Checking whether the server can accept Hello Extensions... yes
	   Checking whether the server can accept small records (512 bytes)... yes
	   Checking whether the server can accept cipher suites not in SSL 3.0 spec... yes
	   Checking whether the server can accept a bogus TLS record version in the client hello... yes
	   Checking for certificate information... N/A
	   Checking for trusted CAs... N/A
	   Checking whether the server understands TLS closure alerts... partially
	   Checking whether the server supports session resumption... yes
	   Checking for export-grade ciphersuite support... no
	   Checking RSA-export ciphersuite info... N/A
	   Checking for anonymous authentication support... no
	   Checking anonymous Diffie-Hellman group info... N/A
	   Checking for ephemeral Diffie-Hellman support... no
	   Checking ephemeral Diffie-Hellman group info... N/A
	   Checking for ephemeral EC Diffie-Hellman support... yes
	   Checking ephemeral EC Diffie-Hellman group info...
	    Curve SECP256R1
	   Checking for AES-GCM cipher support... no
	   Checking for AES-CBC cipher support... yes
	   Checking for CAMELLIA cipher support... no
	   Checking for 3DES-CBC cipher support... yes
	   Checking for ARCFOUR 128 cipher support... yes
	   Checking for ARCFOUR 40 cipher support... no
	   Checking for MD5 MAC support... yes
	   Checking for SHA1 MAC support... yes
	   Checking for SHA256 MAC support... no
	   Checking for ZLIB compression support... no
	   Checking for max record size... no
	   Checking for OpenPGP authentication support... no

EXIT STATUS

       One of the following exit values will be returned:

       0 (EXIT_SUCCESS)
	      Successful program execution.

       1 (EXIT_FAILURE)
	      The operation failed or the command syntax was not valid.

       70 (EX_SOFTWARE)
	      libopts had an internal operational error.  Please report it to autogen-users@lists.sourceforge.net.  Thank you.

SEE ALSO

       gnutls-cli(1), gnutls-serv(1)

AUTHORS

       Nikos Mavrogiannopoulos, Simon Josefsson and others; see /usr/share/doc/gnutls-bin/AUTHORS for a complete list.

COPYRIGHT

       Copyright (C) 2000-2012 Free Software Foundation all rights reserved.  This program is released under the terms of the GNU General Public
       License, version 3 or later.

BUGS

       Please send bug reports to: bugs@gnutls.org

NOTES

       This manual page was AutoGen-erated from the gnutls-cli-debug option definitions.

3.1.18								    20 Dec 2013 					       gnutls-cli-debug(1)