But from Copilot I get the below, now the question is: is there are specific additional authentication layer that is triggered while connecting to the SAS grid node via third parties sFTP client ? The involvement of the SAS Metadata Server in the authentication process is specific to how SAS manages user identities and permissions, and it can apply to both SFTP and SSH connections, depending on how the environment is configured. However, there are some distinctions: 1. SFTP Connections: * When using SFTP, especially in a SAS environment, the metadata server can be involved to ensure that the user has the appropriate permissions to access the requested resources. This is because SFTP is often used for transferring data, and SAS needs to ensure that data access policies are enforced. * The metadata server can provide additional layers of security, such as role-based access control and logging of access requests, which are crucial for compliance and security. 2. SSH Connections: * Standard SSH connections typically rely on the underlying operating system for user authentication and do not necessarily involve the SAS Metadata Server. SSH is primarily used for remote command execution and management, and it uses the system’s user accounts and permissions. * However, if SSH is used to access SAS resources or execute SAS scripts, the metadata server might still play a role in verifying that the user has the necessary permissions within the SAS environment. In summary, while the metadata server’s involvement is more pronounced and necessary for SFTP connections due to the nature of data transfers and access control, it can also be relevant for SSH connections if they interact with SAS resources. The key difference lies in the specific use case and how the SAS environment is configured to handle authentication and authorization.
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