gnutls-serv(1)

NAME
gnutls-serv - GnuTLS test server

SYNOPSIS
gnutls-serv [options]

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.

    "%UNSAFE_RENEGOTIATION" Permits (re-)handshakes even unsafe ones.

    "%PARTIAL_RENEGOTIATION" Prevents renegotiation with clients and servers not supporting the safe renegotiation extension. (default)

    "%SAFE_RENEGOTIATION" will enable safe renegotiation. This is the most secure and recommended option for clients. However this will prevent from connecting to legacy servers.

    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 <nmav@gnutls.org> and others; see /usr/share/doc/gnutls-bin/AUTHORS for a complete list.

This manual page was written by Ivo Timmermans <ivo@debian.org>, for the Debian GNU/Linux system (but may be used by others).