# H2 Database Administration and Maintenance

This section provides information about how to manage and back up the H2 embedded database.

H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode.

For more information about how to use the H2 database and web console, refer to the H2 database documentation at [http://www.h2database.com](http://www.h2database.com/).

This database is one of the databases in Talend Administration Center to store all cross-project information such as users, authorizations, and projects.

### In this section

* [Administrating the H2 database through the Web console](https://help.qlik.com/talend/en-US/installation-guide-linux/8.0/administrating-h2-database-through-web-console)
* [Setting up the H2 database for access from other machines](https://help.qlik.com/talend/en-US/installation-guide-linux/8.0/setting-up-h2-database-for-access-from-other-machines)