So you just need to be able to create an sFTP connection to one of the grid nodes where Lustre is mounted with a user that got sufficient permissions to browse the file system and you should be good to go. No SAS involved.
Answer from chatGPT:
To establish an SFTP (Secure File Transfer Protocol) connection to a server, several components and settings must be enabled:
SFTP Server: The server must have an SFTP server software or service running. This is typically part of the SSH server package, such as OpenSSH, which supports SFTP by default.
SSH Access: Since SFTP operates over SSH, the SSH service must be enabled on the server. Ensure that the SSH daemon (e.g., sshd on Linux) is running.
Firewall Rules: Ensure that the firewall settings on the server allow incoming connections on port 22 (the default port for SSH and SFTP). If the server is using a different port for SSH, you need to configure the firewall to allow that port.
User Permissions: The user account you are using to connect must have the necessary permissions to access the directories and files you want to transfer. Ensure that the user is correctly configured on the server.
SFTP Client: On the client side, you need an SFTP client application or command-line tool. Common options include command-line tools like sftp or graphical clients like FileZilla or WinSCP.
Authentication: The authentication method must be set up correctly. This usually involves:
Password Authentication: Ensure that the user’s password is correct and that the server allows password-based authentication (this can be disabled for security reasons).
Public Key Authentication: If using public key authentication, ensure that the server has the client’s public key in the ~/.ssh/authorized_keys file and that the private key is properly configured on the client side.
Configuration Files: Ensure that the server’s SSH configuration file ( /etc/ssh/sshd_config on Linux) allows SFTP connections. Look for lines like Subsystem sftp /usr/lib/openssh/sftp-server or similar, and verify that SFTP is enabled.
By ensuring these components and settings are properly configured, you can successfully establish an SFTP connection to a server.
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