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How To Login To Acres

SSH

This page describes howAccess to logAcres inis limited to a few connection points, and is tightly controlled. SSH is the only way to access Acres, with most networks having access by pivoting through Polaris.

Windows, Linux, or Mac Terminal

From most terminals, SSH is installed by default. SSH access to Polaris can simply be done through the terminal by using ssh acres.clarkson.edu.

However, since Acres is extremely locked down, you may need to 'jump' through Polaris when on a more restricted network. For accessing Polaris, see ACRESthis computingbookstack clusterarticle. IfFrom Polaris, you doshould notbe yetable haveto SSH to Acres directly.

To make this jump automated, use the -J flag, so ssh acres.clarkson.edu becomes ssh -j polaris.clarkson.edu acres.clarkson.edu.

To make this permanent, an accountSSH Config can be created on ACRES, please request one by emailing the OIT helpdesk: helpdesk@clarkson.edu

Login to Clarkson VPN

Ifhost you are notSSHing connectedfrom.

# This file is at ~/.ssh/config

Host polaris polaris.clarkson.edu
  Hostname polaris.clarkson.edu

Host acres acres.clarkson.edu
  Hostname acres.clarkson.edu
  ProxyJump polaris

Once this config is in place, a simple ssh acres should automatically jump you through Polaris into Acres.

Other Methods

All methods to Clarkson'saccess Network (e.g. youAcres are off-campus),done youthe havesame toas firstPolaris, connect to Clarkson VPN.

To Login From Windows,only using PuTTY

To log in to ACRES from a Windows machine,

Step 1) Download Putty(www.chiark.greenend.org.uk/~sgtatham/putty/

), which servesPolaris as athe localProxyJump. sshSSH (secureKeys, shell)Duo clientAuth, File transfer, all of that can be done through whichthe you can access a Linux command line for ACRES.ProxyJump.

Step 2) Once PuTTY has been downloaded and installed, run PuTTY and configure the login information, as described below:

Host Name = "acres.clarkson.edu"

Port = 22

Connection type = SSH

As shown below:

Step 3) Click "Open".

Step 4) You should be prompted for your username and password. Enter your credentials. (If you do not have an account on ACRES, you may request one by emailing the OIT helpdesk at: helpdesk@clarkson.edu )

Step 5) You now have access to a linux shell (command line) on ACRES. You should see a welcome message, and a report of your hard drive usage quota.

If you need access to a graphical user interface for some software on ACRES, please see: How to Use Graphical Applications on ACRES

To Login from Linux, Mac, or from Windows Subsystem Linux (WSL)

If you are a Linux or Mac user, or would like to use Windows Subsystem Linux (WSL) in Windows 10, use the following command in your local terminal:

[user@localhost~]$ ssh username@acres.clarkson.edu [user@localhost~]$ ssh username@acres.clarkson.edu ---

Your username is your Clarkson ID that precedes your email address. (If you do not have an account on ACRES, you may request one by emailing the OIT helpdesk at: helpdesk@clarkson.edu )

Enter you password when prompted. You now have access to a linux shell (command line) on ACRES. You should see a welcome message, and a report of your hard drive usage quota.

If one wants to use remote software (such as Tecplot) with graphic user interface (GUI), use the -X option to login:

[user@localhost~]$ ssh -X username@acres.clarkson.edu [user@localhost~]$ ssh -X username@acres.clarkson.edu ---

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