The objective of this tutorial is to show how to login to the HPC services that ARCC provides. Generally speaking all of our HPC services support login via ssh protocol and the focus of this page. We also provide links to other pages that are specific to different Operating Systems that users may have.
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Since ssh is typically a command line tool, we must first open a terminal on our Mac system to use it. There are multiple ways of doing this here are a few of them on a Mac system:
When the Spotlight Search bar pops up on your screen, type “terminal.app” and hit Return.
Or you can click the Terminal.app icon that appears.
Terminal will launch, and you’ll be ready to go.
You can also open Terminal quickly from Launchpad. If you have Launchpad in your dock, click the rocket ship icon—or press “F4” on your keyboard to launch it.
When Launchpad opens, type “Terminal” and hit return. Or you can click the “Terminal” icon.
The terminal app will open.
If you’d prefer to go launch Terminal from the program icon in Finder, you’ll usually find it located in the /Applications/Utilities folder. This is its default location on fresh installations of macOS.
To open Terminal from your Applications folder, click your desktop to bring Finder into focus. In the menu bar, click “Go” and select “Applications.”
Your Applications folder will open. Scroll through until you find the “Utilities” folder. Double-click the “Utilities” folder to open it. Inside, you will find Terminal.
Double-click the Terminal.app icon and the Terminal will open.
After launching Terminal, if you’d like to quickly access it again in the future, you can choose to keep its icon in your Dock. Just right-click the Terminal icon on your Dock and select “Options > Keep in Dock.” The next time you need to run Terminal, just click its Dock icon
Using the ssh command
There are several different parts of the ssh command but it can be broke down into username, the '@' symbol, and servername. For example, when I first open a terminal on a Mac computer I see:
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If you are unsure how to do this, please see our Tutorial on Using Two-Factor Authentication. After we enter our password and 2FA, we are logged into the system successfully and our prompt in our terminal changes to what we used in our ssh command.
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