Set Up Passwordless SSH
It is convenient to set up password-less SSH login to the cluster. This avoids retyping your password each time you want to transfer any data. This is also a necessary step if you want to set up SSHFS (see below).
In systems with ssh-id-copy command the instructions can be found here. In OSX you have to transfer the public key file manually using the following command:
cat ~/.ssh/id_rsa.pub | ssh your-userID@argo.orc.gmu.edu "mkdir -p ~/.ssh; cat >> ~/.ssh/authorized_keys
You also must make sure your key file does not conflict with already
existing keys or that you do not overwrite the
Windows pre Windows 10
In order to login to your ARGO account using PuTTY without having to
type in your password each time, you have to set up a key-file based
authentication. First, download Putty from the GMU ITS downloads
Save the file to your local disk. Open it, keep the default settings
(SSH-2 RSA) and click the generate button. Do not add any additional
passphrase. Save the file to a location of your choice. Now open PuTTY
and login to your ARGO account as you normally would by typing your
password. After you have logged in, go to the
.ssh directory by typing:
The directory should contain a file called
authorized_keys (if not, you may
need to send email to orchelp). Open the
authorized_keys file -- you
can use any command line unix text editor such as
nano to do that:
After which, open the saved key file on your computer, copy the public
key portion (under the public-lines) and paste it in the
authorized_keys file. Now add the keyword
ssh-rsa" at the beginning. The
public key that you inserted may span multiple lines. You need to delete
the carriage return at the end of each line and merge them into a single
line. For a detailed tutorial on how to set up password-less ssh from
windows, you may visit
Mac/Linux/Windows 10 (SCP)
Data, scripts and executables can be transferred via the
scp command on UNIX-based systems.
scp your_local_file_path userID@argo.orc.gmu.edu:~/your_cluster_folder_path
For downloading, just switch the source and destination paths. You can
-r option to copy entire
Windows Pre Windows 10
Transferring using WinSCP
WinSCP is a user friendly, GUI based SSH transfer client. You can download WinSCP from winscp.net. Install and connect by providing your ARGO login credential as shown in the screenshots.
After logging into WinSCP, all you need to do is drag-n-drop from the left to right to transfer files.
Transferring using PSCP
Download PSCP from the PuTTY download
It is a command line program, so you have to open it inside
command-prompt (cmd.exe). You can only use the
pscp command if the pscp executable
is in your current directory. In order for Windows to recognize the
command you need to add the path of the
pscp executable to your
environment variables list. You can access the environment variables by
My Computer → Properties → Advanced System Settings → Environment Variables → System Variables → Path.
You then select the
and click the edit button to edit it. Append the absolute path of the
pscp executable at the end of your current path string (do not replace
the current path string). Click OK after you have finished editing.
Note, you may need to restart your computer for the changes to take
effect. Now open
cmd.exe and type
in the following command to transfer files to/from ARGO.
pscp [options] [user@]host:source target
pscp your-userID@argo.orc.gmu.edu:~/ c:\path\to\your\local\file.txt
Tutorial for how to use PSCP can be found here
Transferring Data Using SSHFS(Optional)
You can install SSHFS (SSH File system) to mount remote volumes / folders in your local drive. For example you can type the following to mount your ARGO home directory as a local folder in your desktop. You can then directly edit files stored in your home folder on the cluster. Note, you need to set up password-less ssh before you can mount using SSHFS.
sshfs -p 22 userID@argo.orc.gmu.edu: ~/Desktop/MyArgoHome/
To unmount, use the
Tutorial for setting up SSHFS on windows can be found at mounting remote file systems.