Linux manual pages Section 1  

Name

gnutls−serv — GNU TLS test server

DESCRIPTION

Simple server program that listens to incoming TLS connections.

OPTIONS

Program control options

−d, −−debug LEVEL

Specify the debug level. Default is 1.

−h, −−help

prints this help

−l, −−list

Print a list of the supported algorithms and modes.

−q, −−quiet

Suppress some messages.

−v, −−version

prints the program's version number

Server options

−p, −−port integer

The port to listen on.

−−nodb

Does not use the resume database.

−−http

Act as an HTTP Server.

−−echo

Act as an Echo Server.

TLS/SSL control options

−−priority PRIORITY STRING

TLS algorithms and protocols to enable. Unless the first keyword is "NONE" the defaults are:

  • Protocols: TLS1.1, TLS1.0, and SSL3.0.

  • Compression: NULL.

  • Certificate types: X.509, OpenPGP.

You can also use predefined sets of ciphersuites such as:

PERFORMANCE

all the "secure" ciphersuites are enabled, limited to 128 bit ciphers and sorted by terms of speed performance.

NORMAL

option enables all "secure" ciphersuites. The 256-bit ciphers are included as a fallback only. The ciphers are sorted by security margin.

SECURE128

flag enables all "secure" ciphersuites with ciphers up to 128 bits, sorted by security margin.

SECURE256

flag enables all "secure" ciphersuites including the 256 bit ciphers, sorted by security margin.

EXPORT

all the ciphersuites are enabled, including the low-security 40 bit ciphers.

NONE

nothing is enabled. This disables even protocols and compression methods.

Special keywords:

"!" or "-" appended with an algorithm will remove this algorithm.

"+" appended with an algorithm will add this algorithm.

"%COMPAT" will enable compatibility features for a server.

To avoid collisions in order to specify a compression algorithm in this string you have to prefix it with "COMP-", protocol versions with "VERS-" and certificate types with "CTYPE-". All other algorithms don't need a prefix.

Examples:

  • "NORMAL"

  • "NORMAL:%COMPAT"

  • "NORMAL:!AES-128-CBC"

  • "NONE:+VERS-TLS1.0:+AES-128-CBC:+RSA:+SHA1:+COMP-NULL"

−g, −−generate

Generate Diffie-Hellman Parameters.

−−kx kx1 kx2...

Key exchange methods to enable (use gnutls−cli −−list to show the supported key exchange methods).

−p, −−port integer

The port to connect to.

Certificate options

−−pgpcertfile FILE

PGP Public Key (certificate) file to use.

−−pgpkeyfile FILE

PGP Key file to use.

−−pgpkeyring FILE

PGP Key ring file to use.

−−pgptrustdb FILE

PGP trustdb file to use.

−−srppasswd FILE

SRP password file to use.

−−srppasswdconf FILE

SRP password configuration file to use.

−−x509cafile FILE

Certificate file to use.

−−x509certfile FILE

X.509 Certificate file to use.

−−x509fmtder

Use DER format for certificates

−−x509keyfile FILE

X.509 key file to use.

SEE ALSO

gnutls-cli(1), gnutls-cli-debug(1)

AUTHOR

Nikos Mavroyanopoulos <[email protected]> and others; see /usr/share/doc/gnutls−bin/AUTHORS for a complete list.

This manual page was written by Ivo Timmermans <[email protected]>, for the Debian GNU/Linux system (but may be used by others).