kea-admin - Shell script for managing Kea databases
kea-admin [command] [backend] [-h database_host] [-P database_port] [-u database_username] [-p [database_password]] [-n database_name] [-d script_directory] [-v] [-x extra_argument [-x extra_argument ...]] [-4 | -6] [-i input_file] [-o output_file] [-y]
kea-admin is a shell script that offers database maintenance. In particular, it features database initialization, database version checking, and database schema upgrading.
- Specifies the command to be issued to the servers. It can be one of the following:
- Initializes a new database schema. This is useful during a new Kea installation. The database is initialized to the latest version supported by the version of the software being installed.
- Reports the database backend version number. This is not necessarily equal to the Kea version number, as each backend has its own versioning scheme.
- Conducts a database schema upgrade. This is useful when upgrading Kea.
- Dumps the contents of the lease database (for MySQL or PostgreSQL backends) to a CSV (comma-separated values) text file. (Support for the Cassandra backend has been deprecated.) The first line of the file contains the column names. This can be used as a way to switch from a database backend to a memfile backend. Alternatively, it can be used as a diagnostic tool, so it provides a portable form of the lease data.
- Uploads leases from a CSV (comma-separated values) text file to a MySQL or a PostgreSQL lease database. The CSV file needs to be in memfile format.
- Recounts lease statistics for a MySQL or PostgreSQL database.
- Specifies the backend type. Currently allowed backends are: memfile, mysql, and pgsql; cql has been deprecated.
- -h|--host hostname
- Specifies the hostname when connecting to a database. The default value is localhost.
- -P|--port port
- Specifies the port when connecting to a database. If not specified, the default value chosen by the database client is used.
- -u|--user username
- Specifies the username when connecting to a database. The default value is keatest.
- -p|--password password
- Specifies the password when connecting to a database. If only -p or --password is given, the user is prompted for a password. If not specified at all, the KEA_ADMIN_DB_PASSWORD environment variable is checked for a value and used if it exists. Otherwise the default value of keatest is used.
- -n|--name database-name
- Specifies the name of the database to connect to. The default value is keatest.
- -d|--directory script-directory
- Specifies the override scripts directory. That script is used during upgrades, database initialization, and possibly other operations. The default value is (prefix)/share/kea/scripts/.
- -o|--output output_file
- Specifies the file to which the lease data will be dumped. Required for lease-dump.
- Prints the kea-admin version and quits.
- Directs kea-admin to lease-dump the DHCPv4 leases. Incompatible with the -6 option.
- Directs kea-admin to lease-dump the DHCPv6 leases. Incompatible with the -4 option.
- Specifies an extra argument to pass to the database command tool e.g. to invoke mysql with the --ssl argument. This can be repeated to pass more than one argument. Quotes are not preserved. Avoid commands containing spaces.
- Assume yes on overwriting temporary files.
Kea comes with an extensive Kea Administrator Reference Manual that covers all aspects of running the Kea software - compilation, installation, configuration, configuration examples, and much more. Kea also features a Kea Messages Manual, which lists all possible messages Kea can print with a brief description for each of them. Both documents are available in various formats (.txt, .html, .pdf) with the Kea distribution. The Kea documentation is available at https://kea.readthedocs.io.
Kea source code is documented in the Kea Developer's Guide, available at https://reports.kea.isc.org/dev_guide/.
The Kea project website is available at https://kea.isc.org.
There are two public mailing lists available for the Kea project. kea-users (kea-users at lists.isc.org) is intended for Kea users, while kea-dev (kea-dev at lists.isc.org) is intended for Kea developers, prospective contributors, and other advanced users. Both lists are available at https://lists.isc.org. The community provides best-effort support on both of those lists.
ISC provides professional support for Kea services. See https://www.isc.org/kea/ for details.
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|January 21, 2023||2.2.0|