# Granting access to servers

**In order for our specialists to install the integration and provide technical support, they will need access to the server where the Itgrix module service will be installed (this is typically an Asterisk telephony server).**

## Ways to connect to servers for integration and technical support

**Key-based SSH**

* **Preferred method** of accessing servers.
* Terms of Use:
  * We will provide the client with only the **public key** for configuration (we will send the key via support chat or email).
  * Access is restricted to only the necessary permissions.

**SSH with a password**

* For basic setup and technical support.
* Terms of Use:
  * Your login and password will be provided via the support chat or by email.
  * Access restriction based on IP address (address provided upon request).
  * Temporary access (while configuration is in progress) or permanent access for ongoing support.
  * Deleting an account or disabling a password after completing work.
  * Access is restricted to only the necessary permissions.

**VPN access**

* Used in closed infrastructure environments or when operations must take place within a secure perimeter.
* Terms of Use:
  * The VPN configuration is provided by the client (preferably compatible with OpenVPN).
  * After connecting via VPN — using SSH with a key or a password.

**AnyDesk (remote desktop access)**

* Used when the server can only be accessed via the client's workstation (for example, without direct SSH access).
* You need to launch AnyDesk on the client side and provide your ID and temporary password.

{% hint style="warning" %}
This doesn't always work due to connection restrictions imposed by AnyDesk (connection limits exceeded)
{% endhint %}


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