|Rebuild the monkeysphere-controlled authorized_keys files. For each specified account, the user IDs listed in the accounts authorized_user_ids file are processed. For each user ID, 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 monkeysphere(7)), the key is added to the accounts monkeysphere-controlled authorized_keys file. If the RAW_AUTHORIZED_KEYS variable is set, then a separate authorized_keys file (usually ~USER/.ssh/authorized_keys) is appended to the monkeysphere-controlled authorized_keys file. If no accounts are specified, then all accounts on the system are processed. u may be used in place of update-users.|
|Output to stdout authorized_keys lines for USER. This command behaves exactly like update-users (above), except that the resulting authorized_keys lines are output to stdout, instead of being written to the monkeysphere-controlled authorized_keys file.|
|Refresh all keys in the monkeysphere-authentication keyring. If no accounts are specified, then all accounts on the system are processed. r may be used in place of refresh-keys.|
|Instruct system to trust user identity certifications made by KEYID. The key ID will be loaded from the keyserver. A file may be loaded instead of pulling the key from the keyserver by specifying the path to the file as the argument, or by specifying - to load from stdin. Using the -n or --domain option allows you to indicate that you only trust the given KEYID to make identifications within a specific domain (e.g. "trust KEYID to certify user identities within the @example.org domain"). A certifier trust level can be specified with the -t or --trust option (possible values are marginal and full (default is full)). A certifier trust depth can be specified with the -d or --depth option (default is 1). c+ may be used in place of add-id-certifier.|
|Instruct system to ignore user identity certifications made by KEYID. c- may be used in place of remove-id-certifier.|
|List key IDs trusted by the system to certify user identities. c may be used in place of list-id-certifiers.|
|Show the monkeysphere version number. v may be used in place of version.|
Output a brief usage summary. h or ? may be used in place of
|setup||Setup the server in preparation for Monkeysphere user authentication. This command is idempotent and run automatically by the other commands, and should therefore not usually need to be run manually. s may be used in place of setup.|
|Review the state of the server with respect to authentication. d may be used in place of diagnostics.|
Execute a gpg command, as the monkeysphere user, on the monkeysphere
authentication sphere keyring. As of monkeysphere 0.36, this takes
its arguments separately, not as a single string. Use this command
with caution, as modifying the authentication sphere keyring can
affect ssh user authentication.
If the server will handle user authentication through monkeysphere-generated authorized_keys files, the server must be told which keys will act as identity certifiers. This is done with the add-id-certifier command:
# monkeysphere-authentication add-id-certifier KEYID
where KEYID is the key ID of the server admin, or whoevers certifications should be acceptable to the system for the purposes of authenticating remote users. You can run this command multiple times to indicate that multiple certifiers are trusted. You may also specify a filename instead of a key ID, as long as the file contains a single OpenPGP public key. Certifiers can be removed with the remove-id-certifier command, and listed with the list-id-certifiers command.
A remote user will be granted access to a local account based on the appropriately-signed and valid keys associated with user IDs listed in that accounts authorized_user_ids file. By default, the authorized_user_ids file for an account is ~/.monkeysphere/authorized_user_ids. This can be changed in the monkeysphere-authentication.conf file.
The update-users command is used to generate authorized_keys files for a local account based on the user IDs listed in the accounts authorized_user_ids file:
# monkeysphere-authentication update-users USER
Not specifying USER will cause all accounts on the system to updated. The ssh server can use these monkeysphere-generated authorized_keys files to grant access to user accounts for remote users. In order for sshd to look at the monkeysphere-generated authorized_keys file for user authentication, the AuthorizedKeysFile parameter must be set in the sshd_config to point to the monkeysphere-generated authorized_keys files:
It is recommended to add "monkeysphere-authentication update-users" to a system crontab, so that user keys are kept up-to-date, and key revocations and expirations can be processed in a timely manner.
The following environment variables will override those specified in the config file (defaults in parentheses):
MONKEYSPHERE_MONKEYSPHERE_USER User to control authentication keychain. (monkeysphere) MONKEYSPHERE_LOG_LEVEL Set the log level. Can be SILENT, ERROR, INFO, VERBOSE, DEBUG, in increasing order of verbosity. (INFO) MONKEYSPHERE_KEYSERVER OpenPGP keyserver to use. (pool.sks-keyservers.net) MONKEYSPHERE_CHECK_KEYSERVER Whether or not to check the keyserver when making gpg queries. (true) MONKEYSPHERE_AUTHORIZED_USER_IDS Path to users authorized_user_ids file. %h gets replaced with the users homedir, %u with the username. (%h/.monkeysphere/authorized_user_ids) MONKEYSPHERE_RAW_AUTHORIZED_KEYS Path to regular ssh-style authorized_keys file to append to monkeysphere-generated authorized_keys. none means not to add any raw authorized_keys file. %h gets replaced with the users homedir, %u with the username. (%h/.ssh/authorized_keys) MONKEYSPHERE_PROMPT If set to false, never prompt the user for confirmation. (true) MONKEYSPHERE_STRICT_MODES If set to false, ignore too-loose permissions on known_hosts, authorized_keys, and authorized_user_ids files. NOTE: setting this to false may expose users to abuse by other users on the system. (true)
/usr/local/usr/local/etc/monkeysphere/monkeysphere-authentication.conf System monkeysphere-authentication config file. /usr/local/usr/local/etc/monkeysphere/monkeysphere-authentication-x509-anchors.crt or /usr/local/usr/local/etc/monkeysphere/monkeysphere-x509-anchors.crt If monkeysphere-authentication is configured to query an hkps keyserver, it will use X.509 Certificate Authority certificates in this file to validate any X.509 certificates used by the keyserver. If the monkeysphere-authentication-x509 file is present, the monkeysphere-x509 file will be ignored. /var/lib/monkeysphere/authorized_keys/USER Monkeysphere-controlled user authorized_keys files. ~/.monkeysphere/authorized_user_ids A list of OpenPGP user IDs, one per line. OpenPGP keys with an exactly-matching User ID (calculated valid by the designated identity certifiers), will have any valid authorization-capable keys or subkeys added to the given users authorized_keys file. Any line with initial whitespace will be interpreted as ssh authorized_keys options applicable to the preceding User ID.
|monkeysphere||MONKEYSPHERE-AUTHENTICATION (8)||March 13, 2013|