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Accessing Central Linux Systems
(Astro and HPC Systems -
Compute and Owlsnest) 

Using a PC and SSH Secure Shell

Topics

I. Introduction

II. Using the Secure Shell Client

A. Logging into your Unix Account

B. Exiting the Secure Shell Client

III. Using the Secure File Transfer Client

A. Accessing a server

B. Uploading a file

C. Downloading a file

D. Printing

E. Exiting the Secure File Transfer Client


Full Document

I. Introduction

SSH Secure Shell is secure connectivity software that you can use to access systems such as Astro. SSH Secure Shell offers a secure connection between your PC and Temple's servers because information is encrypted when it is transferred. It is also SSHv2 compliant and enables you to easily upload and download files. 

SSH Secure Shell has two compoents:

  • Secure File Transfer Client - Enables you to transfer files from your computer to and from a Unix server.

  • Secure Shell Client - Enables you to log in to your Unix account and run commands.

You can download a free verion of SSH Secure Shell from the Help Desk Download web site. Installation instructions also appear on this site.

II. Using the Secure Shell Client

A. Logging in to your Unix Account

1. To connect to a server, open Start/All Programs/SSH Secure Shell/Secure Shell Client.

2. Click Quick Connect below the menu bar.

3. In the Host Name box, type the address of the server to which you wish to connect (astro.temple.edu, compute.temple.edu or owlsnest.hpc.temple.edu). In the User Name box, type the user name for your account on the server. Then click on Connect.

Note:  The first time you connect to a server, you will be prompted to save the encryption keys on your computer. If you are using your own computer, click on Yes. You will not be prompted with this message again in the future.

4. You will then be prompted for your password. Enter your password and click on OK.

A connection to the server will then be established.

Tip:  Once you successfully connect to the server, you can save the server name and username as a Profile so you can easily connect in the future. To create the Profile, click on Profiles below the menu bar and select Add Profile.  In the Add Profile window, type a name for the Profile, such as astro or euler, and click Add to Profiles. Now, the next time you wish to connect to this server, you can simply go to Profiles on the menu bar and select the Profile name. 

B. Exiting the Secure Shell Client

When you are ready to exit the server, type exit at the Unix prompt (%) to log off the system. Then click on File and select Exit
-or-
click on the X in the top right corner of the window to exit the program.

III. Using the Secure File Transfer Client

A. Accessing a server

1. To connect to a server, open the Secure Shell File Transfer program on your computer. To do this click Start/All Programs/SSH Secure Shell/Secure File Transfer Client.

2. Click Quick Connect below the menu bar.

3. In the Host Name box, type the address of the server to which you wish to connect (astro.temple.edu, compute.temple.edu or owlsnest.hpc.temple.edu). In the User Name box, type the user name for your account on the server. Then click on Connect.

Note:  The first time you connect to a server, you will be prompted to save the encryption keys on your computer. If you are using a personal computer, click on Yes. You will not be prompted with this message again in the future.

4. You will then be prompted for your password. Enter your password and click on OK.

A connection to the server will then be established.

Tip:  Once you successfully connect to the server, you can save the server name and username as a Profile so you can easily connect in the future. To create the Profile, click on Profiles on the menu bar and select Add Profile.  In the Add Profile window, type a name for the Profile, such as astro or euler, and click Add to Profiles. Now, the next time you wish to connect to this server, you can simply go to Profile on the menu bar and select the Profile name. 

B. Uploading a file

Before you upload a file, please note that Unix/Linux systems will not accept filenames with spaces or special characters such as *, &, and @.  If your filename includes any of these restrictions, click the right mouse button on the filename, select Rename and then type over the filename to rename it.

1. To upload a file from your PC to the server, connect to the system (as explained above), go to the Window menu and select New File Transfer Window
-or-
click on the New File Transfer icon on the menu bar, shown as: transfer icon

2. In the File Transfer window, click on the up arrow on the menu bar, shown as: upload icon.

3. A dialog box will appear so you can select the file that you wish to upload. Click on the file to highlight it and then click on Upload.

Tip:  To upload more than one file, hold down the Ctrl key and then click on each file to highlight it. Or, if the files are in a row, click on the first file to highlight it and then hold down the Shift key and click on the last file to select all the files, from first through last. 

The Uploading window will appear with a progress bar showing the transfer process. 

4. Once the transfer is complete, close the File Transfer window by clicking on the X in the top right corner of the window.

C. Downloading a file

1. To download a file from the server to your PC, connect to the system (as explained above), then go to the Window menu and select New File Transfer
-or-
click on the New File Transfer Window icon on the menu bar, shown as: transfer icon

2. On the right side of the File Transfer window, click on the file that you wish to download and then click on the down arrow on the menu bar, shown as: download icon.

Tip:  To download more than one file, hold down the Ctrl key and then click on each file to highlight it. Or, if the files are in a row, click on the first file to highlight it and then hold down the Shift key and click on the last file to select all the files, from first through last. 

3. A dialog box will appear so you can select where you would like the file to be downloaded. Select a location and then click on Download.

The Downloading window will appear with a progress bar showing the transfer process. 

4. Once the transfer is complete, close the File Transfer window by clicking on the X in the top right corner of the window.

D. Printing

To print the current screen:

1. Use the mouse to highlight the information on the screen that you wish to print.

2. Go under the File menu and select Print.

3. At the prompt, click on OK to print.

E. Exiting the Secure File Transfer Client

When you are ready to exit the server, type exit log off the system. Then click on File and select Exit
-or-
click on the X in the top right corner of the window to exit the program.

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