> ## Documentation Index
> Fetch the complete documentation index at: https://docs.staging.metronome.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Postgres

## Prerequisites

* If your Postgres database is protected by security groups or other firewall settings, you will need to have the data-syncing service's static IP available to complete Step 1.

## Step 1: Allow access

Create a rule in a security group or firewall settings to whitelist:

* incoming connections to your host and port (usually `5432`) from the static IP.
* outgoing connections from ports `1024` to `65535` to the static IP.

## Step 2: Create writer user

Create a database user to perform the writing of the source data.

1. Open a connection to your PostgreSQL database.
2. Create a user for the data transfer by executing the following SQL command.

```sql theme={null}
CREATE USER <username> PASSWORD '<some-password>';
```

3. Grant user `create` and `temporary` privileges on the database. `create` allows the service to create new schemas and `temporary` allows the service to create temporary tables.

```sql theme={null}
GRANT CREATE, TEMPORARY ON DATABASE <database> TO <username>;
```

> 🚧 If the `schema` already exists
>
> By default, the service creates a new schema based on the destination configuration (in the next step). If you prefer to create the schema yourself before connecting the destination, you must ensure that the writer user has the proper permissions on the schema, using `GRANT ALL ON schema <schema> TO <username>;`

## Step 3: Add your destination

Securely share your **host name**, **database name**, **port**, your chosen **schema name**, **username**, and **password** with us to complete the connection.