SCP

Data Transfer

Use scp and SFTP to transfer data to/from Aurora.

Transferring files from Aurora (Flare) to Sunspot (Gila)

From an Aurora login-node, you can transfer files to Sunspot's gila filesystem using the scp command. But first, you need to create an SSH keypair on Aurora and copy the public key (*.pub) to the ~/.ssh/authorized_keys file on Sunspot. 1. Create SSH keys on the laptop/desktop/remote machine. See "Creating SSH Keys" section on this page. 2. Copy the public key (*.pub) from ~/.ssh folder on Aurora to ~/.ssh/authorized_keys file on Sunspot (sunspot.alcf.anl.gov) 3. Run the scp command on Aurora to transfer files to Sunspot 2. Copy the contents of the public key file (*.pub) located in the ~/.ssh/ folder on Aurora, and append it to the ~/.ssh/authorized_keys file on Sunspot (sunspot.alcf.anl.gov) 3. Run the scp command on Aurora to transfer files to Sunspot

username@aurora-uan-0010:~> scp test_file [email protected]://lus/gila/projects/Aurora_deployment/username
...
username@uan-0001:/gila/Aurora_deployment/username> cat test_file
this is a test file

Transferring files to Aurora (Flare)

With the bastion pass-through nodes currently used to access both Sunspot and Aurora, users will find it helpful to modify their .ssh/config files on Aurora appropriately to facilitate transfers to Aurora from other ALCF systems. These changes are similar to what Sunspot users may have already implemented. From an Aurora login-node, this readily enables one to transfer files from Sunspot's gila filesystem or one of the production filesystems at ALCF (home and eagle) mounted on an ALCF system's login node. With the use of ProxyJump below, entering the MobilePass+ or Cryptocard passcode twice will be needed (once for bastion and once for the other resource). A simple example shows the .ssh/config entries for Polaris and the scp command for transferring from Polaris:

$ cat .ssh/config
username@aurora-uan-0009:~> cat .ssh/config
Host bastion.alcf.anl.gov
    User username

Host polaris.alcf.anl.gov
    ProxyJump bastion.alcf.anl.gov
    DynamicForward 3142
    user username

username@aurora-uan-0009:~> scp [email protected]:/eagle/catalyst/proj-shared/username/test.txt ./
---------------------------------------------------------------------------
                            Notice to Users
...
[Password:
---------------------------------------------------------------------------
                            Notice to Users
... 
[Password:
username@aurora-uan-0009:~> cat test.txt 
from_polaris eagle