# Update VMware Gateway Credentials

If you specified incorrect credentials to your Platform9 VMware vSphere Gateway Appliance, and need to fix them, following tutorial describes how to do that.

### Step 1 - Log into Platform9 VMware vSphere Gateway Appliance

**Username:** root **Password:**`<contact PF9 support for default password>`

{% hint style="info" %}
**IMPORTANT**

Platform9 strongly recommends that you change the default password.
{% endhint %}

### Step 2 - Run the Platform9 update\_credentials CLI Utility

The Platform9 gateway virtual appliance ships with a CLI utility update\_credentials which allows you to re-authenticate your gateway appliance with vCenter.

{% hint style="info" %}
**IMPORTANT**

If the username or password contains special characters, please enclose the text in single quotes (‘passw@$rd’), so that the values are interpreted correctly. Currently single-quotes (‘) and double-qoutes (") cannot be handled in the password, please change the password in such cases.
{% endhint %}

{% tabs %}
{% tab title="Bash" %}

```bash
update_credentials -i <vcenter ip address or hostname> -u <vcenter username> [-p <vcenter password>]
# If password option is not specified while invoking the command
# you will be prompted to provide it later as password protected field
```

{% endtab %}
{% endtabs %}

Once the authentication succeeds, you should see the gateway appliance appear in the Platform9 user interface as awaiting authorization.

### Validate Credentials Only

In case you only want to test a particular set of credentials for permissions validity, before using them, you can use the ValidateOnly option:

{% tabs %}
{% tab title="Bash" %}

```bash
update_credentials -i <vcenter ip address or hostname> -u <vcenter username> [-p <vcenter password>] -V
# If password option is not specified while invoking the command
# you will be prompted to provide it later as password protected field
```

{% endtab %}
{% endtabs %}

In this case, the configuration files are not updated, but a brief report of the credentials permissions report is displayed.