File transfer processing on mainframes is usually non-interactive. This means that the host keys of the remote servers must be stored in a way that user interaction is not needed during the batch process, and that both users and processes use non-interactive authentication methods for user authentication.

The key distribution tool, /opt/tectia/bin/ssh-keydist-g3, can be used for storing multiple remote host keys to user-specific or common key store and setting up public-key authentication to multiple hosts.

The tool calls /opt/tectia/bin/ssh-keygen-g3 when creating new key pairs.

For more information on the ssh-keydist-g3 options, see ssh-keydist-g3(1).

Most of the examples in this section are executed from Unix shell (for example, OMVS shell), but the same commands can also be run in JCL using BPXBATCH.