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  retrieve or change that data, and audit rules for documenting actions
  taken on that data.  Objects of various types may be stored in the
  wallet or generated on request and retrieved by authorized users.  The
  wallet tracks ACLs, metadata, and trace information.  It is built on top
  of the remctl protocol and uses Kerberos GSS-API authentication.  One of
  the object types it supports is Kerberos keytabs, making it suitable as
  a user-accessible front-end to Kerberos kadmind with richer ACL and
  metadata operations.

DESCRIPTION

  The wallet is a client/server system using a central server with a
  supporting database and a stand-alone client that can be widely
  distributed to users.  The server runs on a secure host with access to a
  local database; tracks object metadata such as ACLs, attributes,
  history, expiration, and ownership; and has the necessary access
  privileges to create wallet-managed objects in external systems (such as
  Kerberos service principals).  The client uses the remctl protocol to
  send commands to the server, store and retrieve objects, and query
  object metadata.  The same client can be used for both regular user
  operations and wallet administrative actions.

  All wallet actions are controlled by a fine-grained set of ACLs.  Each
  object has an owner ACL and optional get, store, show, destroy, and
  flags ACLs that control more specific actions.  A global administrative
  ACL controls access to administrative actions.  An ACL consists of zero
  or more entries, each of which is a generic scheme and identifier pair,
  allowing the ACL system to be extended to use any existing authorization
  infrastructure.  Supported ACL types include Kerberos principal names,
  regexes matching Kerberos principal names, and LDAP attribute checks.

  Currently, the object types supported are simple files, passwords,
  Kerberos keytabs, WebAuth keyrings, and Duo integrations.  By default,
  whenever a Kerberos keytab object is retrieved from the wallet, the key
  is changed in the Kerberos KDC and the wallet returns a keytab for the
  new key.  However, a keytab object can also be configured to preserve
  the existing keys when retrieved.  Included in the wallet distribution
  is a script that can be run via remctl on an MIT Kerberos KDC to extract
  the existing key for a principal, and the wallet system will use that
  interface to retrieve the current key if the unchanging flag is set on a
  Kerberos keytab object for MIT Kerberos.  (Heimdal doesn't require any
  special support.)

REQUIREMENTS

  The wallet client requires the C remctl [1] client library and a
  Kerberos library.  It will build with either MIT Kerberos or Heimdal.

  [1] https://www.eyrie.org/~eagle/software/remctl/

  The wallet server is written in Perl and requires Perl 5.8.0 or later
  plus the following Perl modules:

  * Date::Parse (part of the TimeDate distribution)
  * DBI
  * DBIx::Class
  * Module::Build
  * SQL::Translator

  You will also need a DBD Perl module for the database backend that you
  intend to use, and the DateTime::Format::* module corresponding to that
  DBD module (such as DateTime::Format::SQLite or DateTime::Format::PG).

  Currently, the server has only been tested against SQLite 3, MySQL 5,
  and PostgreSQL, and prebuilt SQL files (for database upgrades) are only
  provided for those servers.  It will probably not work fully with other
  database backends.  Porting is welcome.

  The wallet server is intended to be run under remctld and use remctld to
  do authentication.  It can be ported to any other front-end, but doing
  so will require writing a new version of server/wallet-backend that
  translates the actions in that protocol into calls to the Wallet::Server
  Perl object.

  The keytab support in the wallet server supports Heimdal and MIT
  Kerberos KDCs and has experimental support for Active Directory.  The
  Heimdal support requires the Heimdal::Kadm5 Perl module.  The MIT
  Kerberos support requires the MIT Kerberos kadmin client program be
  installed.  The Active Directory support requires the Net::LDAP,
  Authen::SASL, and IPC::Run Perl modules and the msktutil client program.

  To support the unchanging flag on keytab objects with an MIT Kerberos
  KDC, the Net::Remctl Perl module (shipped with remctl) must be installed
  on the server and the keytab-backend script must be runnable via remctl
  on the KDC.  This script also requires an MIT Kerberos kadmin.local
  binary that supports the -norandkey option to ktadd.  This option is
  included in MIT Kerberos 1.7 and later.

  The WebAuth keyring object support in the wallet server requires the
  WebAuth Perl module from WebAuth 4.4.0 or later [2].

  [2] https://www.eyrie.org/~eagle/software/webauth/

  The Duo integration object support in the wallet server requires the
  Net::Duo [3], JSON, and Perl6::Slurp Perl modules.

  [3] https://www.eyrie.org/~eagle/software/net-duo/

  The password object support in the wallet server requires the
  Crypt::GeneratePassword Perl module.

  The LDAP attribute ACL verifier requires the Authen::SASL and Net::LDAP
  Perl modules.  This verifier only works with LDAP servers that support
  GSS-API binds.

  The NetDB ACL verifier (only of interest at sites using NetDB to manage
  DNS) requires the Net::Remctl Perl module.

  To bootstrap from a Git checkout, or if you change the Automake files
  and need to regenerate Makefile.in, you will need Automake 1.11 or
  later.  For bootstrap or if you change configure.ac or any of the m4
  files it includes and need to regenerate configure or config.h.in, you
  will need Autoconf 2.64 or later.  Perl is also required to generate
  manual pages from a fresh Git checkout.

BUILDING AND INSTALLATION

  You can build and install wallet with the standard commands:

      ./configure
      make
      make install

t/data/generate/wallet/output/readme  view on Meta::CPAN

  You can also individually set the paths to the include directory and the
  library directory with --with-krb5-include and --with-krb5-lib.  You may
  need to do this if Autoconf can't figure out whether to use lib, lib32,
  or lib64 on your platform.

  To not use krb5-config and force library probing even if there is a
  krb5-config script on your path, set PATH_KRB5_CONFIG to a nonexistent
  path:

      ./configure PATH_KRB5_CONFIG=/nonexistent

  krb5-config is not used and library probing is always done if either
  --with-krb5-include or --with-krb5-lib are given.

  Pass --enable-silent-rules to configure for a quieter build (similar to
  the Linux kernel).  Use make warnings instead of make to build with full
  compiler warnings (requires either GCC or Clang and may require a
  relatively current version of the compiler).

  You can pass the --enable-reduced-depends flag to configure to try to
  minimize the shared library dependencies encoded in the binaries.  This
  omits from the link line all the libraries included solely because other
  libraries depend on them and instead links the programs only against
  libraries whose APIs are called directly.  This will only work with
  shared libraries and will only work on platforms where shared libraries
  properly encode their own dependencies (this includes most modern
  platforms such as all Linux).  It is intended primarily for building
  packages for Linux distributions to avoid encoding unnecessary shared
  library dependencies that make shared library migrations more difficult.
  If none of the above made any sense to you, don't bother with this flag.

TESTING

  The wallet comes with a comprehensive test suite, but it requires some
  configuration in order to test anything other than low-level utility
  functions.  To enable the full test suite, follow the instructions in:

  * tests/config/README
  * perl/t/data/README

  Now, you can run the test suite with:

      make check

  If a test fails, you can run a single test with verbose output via:

      tests/runtests -o <name-of-test>

  Do this instead of running the test program directly since it will
  ensure that necessary environment variables are set up.

  The test suite requires remctld be installed and available in the user's
  path or in /usr/local/sbin or /usr/sbin; and that sqlite3, kinit, and
  either kvno or kgetcred be installed and available on the user's path.
  The test suite will also need to be able to bind to 127.0.0.1 on ports
  11119 and 14373 to test client/server network interactions.

  The test suite uses a SQLite database for server-side and end-to-end
  testing and therefore requires the DBD::SQLite and
  DateTime::Format::SQLite Perl modules.

  All of the requirements listed above will be required to run the full
  test suite of server functionality, but tests will be selectively
  skipped if their requirements aren't found.

  The following additional Perl modules will be used if present:

  * Test::MinimumVersion
  * Test::Pod
  * Test::Spelling
  * Test::Strict

  All are available on CPAN.  Those tests will be skipped if the modules
  are not available.

  To enable tests that don't detect functionality problems but are used to
  sanity-check the release, set the environment variable RELEASE_TESTING
  to a true value.  To enable tests that may be sensitive to the local
  environment or that produce a lot of false positives without uncovering
  many problems, set the environment variable AUTHOR_TESTING to a true
  value.

CONFIGURATION

  Before setting up the wallet server, review the Wallet::Config
  documentation (with man Wallet::Config or perldoc Wallet::Config).
  There are many customization options, some of which must be set.  You
  may also need to create a Kerberos keytab for the keytab object backend
  and give it appropriate ACLs, and set up keytab-backend and its remctld
  configuration on your KDC if you want unchanging flag support.

  For the basic setup and configuration of the wallet server, see the file
  docs/setup in the source distribution.  You will need to set up a
  database on the server (unless you're using SQLite), initialize the
  database, install remctld and the wallet Perl modules, and set up
  remctld to run the wallet-backend program.

  The wallet client supports reading configuration settings from the
  system krb5.conf file.  For more information, see the CONFIGURATION
  section of the wallet client man page (man wallet).

SUPPORT

  The wallet web page at:

      https://www.eyrie.org/~eagle/software/wallet/

  will always have the current version of this package, the current
  documentation, and pointers to any additional resources.

  New wallet releases are announced on the kerberos mailing list.  To
  subscribe or see the list archives, go to:

      https://mailman.mit.edu/mailman/listinfo/kerberos

  For bug tracking, use the issue tracker on GitHub:

      https://github.com/rra/wallet/issues

  Please be aware that I tend to be extremely busy and work projects often