PyPNM File Retrieval Methods

PyPNM supports multiple methods for retrieving files necessary for its operation. These methods provide flexibility depending on the deployment environment and security requirements.

Method	Description
Local	Guide to setting local file retrieval where PyPNM is the TFTP server.
TFTP	Guide to configuring TFTP file retrieval from a remote PNM TFTP server.
SFTP	Guide to setting up SFTP file retrieval using SSH keys / password for PyPNM.
SCP key setup helper	Prepares SSH keys/config for SCP or hybrid SCP/SFTP workflows.

Need to change topology or method quickly? Use the interactive helper located at tools/pnm/pnm_file_retrieval_setup.py to update system.json without editing by hand.