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Update gecko.md #501

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alcf-haritha Oct 29, 2024
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13 changes: 13 additions & 0 deletions docs/aurora/data-management/lustre/gecko.md
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Currently, scp and SFTP are the only ways to transfer data to/from Aurora.

### Transferring files to Sunspot
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](https://help.cels.anl.gov/docs/linux/ssh/).
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
```
haritha@aurora-uan-0010:~> scp test_file [email protected]://lus/gila/projects/Aurora_deployment/haritha
...
haritha@uan-0001:/gila/Aurora_deployment/haritha> cat test_file
this is a test file

```

### Transferring files from non-ALCF systems

As an expedient for initiating ssh sessions to Aurora login nodes via the bastion indirect nodes, and to enable scp from remote (non ALCF) hosts to Aurora login nodes, follow these steps:
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