Remote

NiftyOne can also be launched remotely (e.g. on a cluster). To use NiftyOne remotely, first follow either the local or container usage instructions with your remote server instructions (e.g. compute node if required). Once NiftyOne is launched, a (multi-layered) port forward will need to be set up from your local machine to the remote server:

Single-layer port forwarding

The follow provides an example of a single-layer port forward:

HOST=hostname # Name of the remote server (not the full address)
PORT=5151 # Assume port 5151 is available, change this as needed

ssh -L ${PORT}:localhost:${PORT} ${USER}@remote.server.com

note

  • -L ${PORT}:localhost:${PORT} maps the variable $PORT on your local machine to the same port on the remote server localhost (relative to remote.server.com)

From here, point the web browser on the local machine (e.g. your computer) to localhost:${PORT}.

Multi-layered port forwarding

The follow provides an example of a two-layer port forward (chain the command as needed for more layers):

HOST=hostname # Name of the remote server (not the full address)
PORT=5151 # Assume port 5151 is available, change this as needed

ssh -L ${PORT}:localhost:${PORT} ${USER}@remote.server.com ssh -L ${PORT}:localhost:${PORT} -N $HOST

note

  • ssh -L ${PORT}:localhost:${PORT} ${USER}@remote.server.com establishes an SSH connection to the intermediate server while forwarding the port
  • ssh -L ${PORT}:localhost:${PORT} -N $HOST forwards port from intermediate server to target remote host $HOST, with -N to keep the session open solely for port forwarding

From here, point the web browser on the local machine (e.g. your computer) to localhost:${PORT} as before.