path: root/man/man1/monkeysphere.1

.TH MONKEYSPHERE "1" "June 2008" "monkeysphere 0.1" "User Commands"

.SH NAME

monkeysphere \- Monkeysphere client user interface

.SH SYNOPSIS

.B monkeysphere \fIsubcommand\fP [\fIargs\fP]

.SH DESCRIPTION

\fBMonkeysphere\fP is a framework to leverage the OpenPGP web of trust
for OpenSSH authentication.  OpenPGP keys are tracked via GnuPG, and
added to the authorized_keys and known_hosts files used by OpenSSH for
connection authentication.

\fBmonkeysphere\fP is the Monkeysphere client utility.

.SH SUBCOMMANDS

\fBmonkeysphere\fP takes various subcommands:
.TP
.B update-known_hosts [HOST]...
Update the known_hosts file.  For each specified host, gpg will be
queried for a key associated with the host URI (see HOST
IDENTIFICATION in
.BR monkeysphere(5)),
optionally querying a keyserver.
If an acceptable key is found for the host (see KEY ACCEPTABILITY in
.BR monkeysphere(5)),
the key is added to the user's known_hosts file.  If a key is found
but is unacceptable for the host, any matching keys are removed from
the user's known_hosts file.  If no gpg key is found for the host,
nothing is done.  If no hosts are specified, all hosts listed in the
known_hosts file will be processed.  This subcommand will exit with a
status of 0 if at least one acceptable key was found for a specified
host, 1 if no matching keys were found at all, and 2 if matching keys
were found but none were acceptable.  `k' may be used in place of
`update-known_hosts'.
.TP
.B update-authorized_keys
Update the authorized_keys file for the user executing the command
(see MONKEYSPHERE_AUTHORIZED_KEYS in ENVIRONMENT, below).  First all
monkeysphere keys are cleared from the authorized_keys file.  Then, or
each user ID in the user's authorized_user_ids file, gpg will be
queried for keys associated with that user ID, optionally querying a
keyserver.  If an acceptable key is found (see KEY ACCEPTABILITY in
.BR monkeysphere (5)),
the key is added to the user's authorized_keys file.
If a key is found but is unacceptable for the user ID, any matching
keys are removed from the user's authorized_keys file.  If no gpg key
is found for the user ID, nothing is done.  This subcommand will exit
with a status of 0 if at least one acceptable key was found for a user
ID, 1 if no matching keys were found at all, and 2 if matching keys
were found but none were acceptable.  `a' may be used in place of
`update-authorized_keys'.
.TP
.B gen-subkey [KEYID]
Generate an authentication subkey for a private key in your GnuPG
keyring.  For the primary key with the specified key ID, generate a
subkey with "authentication" capability that can be used for
monkeysphere transactions.  An expiration length can be specified with
the `-e' or `--expire' option (prompt otherwise).  If no key ID is
specified, but only one key exists in the secret keyring, that key
will be used.  `g' may be used in place of `gen-subkey'.
.TP
.B subkey-to-ssh-agent [ssh-add arguments]
Push all authentication-capable subkeys in your GnuPG secret keyring
into your running ssh-agent.  Additional arguments are passed through
to
.BR ssh-add (1).
For example, to remove the authentication subkeys, pass an additional
`-d' argument.  To require confirmation on each use of the key, pass
`-c'.  `s' may be used in place of `subkey-to-ssh-agent'.
.TP
.B help
Output a brief usage summary.  `h' or `?' may be used in place of
`help'.

.SH ENVIRONMENT

The following environment variables will override those specified in
the monkeysphere.conf configuration file (defaults in parentheses):
.TP
MONKEYSPHERE_GNUPGHOME, GNUPGHOME
GnuPG home directory (~/.gnupg).
.TP
MONKEYSPHERE_KEYSERVER
OpenPGP keyserver to use (subkeys.pgp.net).
.TP
MONKEYSPHERE_CHECK_KEYSERVER
Whether or not to check keyserver when making gpg queries (`true').
.TP
MONKEYSPHERE_KNOWN_HOSTS
Path to ssh known_hosts file (~/.ssh/known_hosts).
.TP
MONKEYSPHERE_HASH_KNOWN_HOSTS
Whether or not to hash to the known_hosts file entries (`true').
.TP
MONKEYSPHERE_AUTHORIZED_KEYS
Path to ssh authorized_keys file (~/.ssh/authorized_keys).

.SH FILES

.TP
~/.config/monkeysphere/monkeysphere.conf
User monkeysphere config file.
.TP
/etc/monkeysphere/monkeysphere.conf
System-wide monkeysphere config file.
.TP
~/.config/monkeysphere/authorized_user_ids
OpenPGP user IDs associated with keys that will be checked for
addition to the authorized_keys file.

.SH AUTHOR

Written by Jameson Rollins <jrollins@fifthhorseman.net>, Daniel
Kahn Gillmor <dkg@fifthhorseman.net>

.SH SEE ALSO

.BR monkeysphere-ssh-proxycommand (1),
.BR monkeysphere-server (8),
.BR monkeysphere (5),
.BR ssh (1),
.BR ssh-add (1),
.BR gpg (1)