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+# <a id="Installation"></a>Installation
+
+## Requirements
+
+* PHP (>= 7.0)
+* Icinga Web 2 (>= 2.9)
+* Icinga Web 2 libraries:
+  * [Icinga PHP Library (ipl)](https://github.com/Icinga/icinga-php-library) (>= 0.8.1)
+  * [Icinga PHP Thirdparty](https://github.com/Icinga/icinga-php-thirdparty) (>= 0.10)
+* php-gmp
+* OpenSSL
+* MySQL or MariaDB
+
+## Database Setup
+
+The module needs a MySQL/MariaDB database with the schema that's provided in the `etc/schema/mysql.schema.sql` file.
+
+You may use the following example command for creating the MySQL/MariaDB database. Please change the password:
+
+```
+CREATE DATABASE x509;
+GRANT SELECT, INSERT, UPDATE, DELETE, DROP, CREATE VIEW, INDEX, EXECUTE ON x509.* TO x509@localhost IDENTIFIED BY 'secret';
+```
+
+After, you can import the schema using the following command:
+
+```
+mysql -p -u root x509 < etc/schema/mysql.schema.sql
+```
+
+## Installation
+
+1. Install it [like any other module](https://icinga.com/docs/icinga-web-2/latest/doc/08-Modules/#installation).
+Use `x509` as name.
+
+2. Once you've set up the database, create a new Icinga Web 2 resource for it using the
+`Configuration -> Application -> Resources` menu.
+
+3. The next step involves telling the module which database resource to use. This can be done in
+`Configuration -> Modules -> x509 -> Backend`.
+
+This concludes the installation. You should now be able to import CA certificates and set up scan jobs.
+Please read the [Configuration](03-Configuration.md) section for details.