Log in to CHTC

Introduction

This guide outlines login information for CHTC services, including how to log in to CHTC servers after your account has been created, access point information, and how to re-use ssh connections to reduce the frequency of using Duo Multi-factor Authentication (MFA).

If you don't have an account, see our getting started page.

Before you log in

You will need the following to log into our CHTC access points:

• Duo Multi-factor authentication (MFA)
• A connection to the campus network or Virtual Private Network (VPN)
• Username and password (typically your UW-Madison NetID and password)
• Access point information
• An SSH program, such as a terminal

Log in

You can log in to the access points two different ways — from a terminal program or using an SSH program.

See this table for a list of terminal/SSH programs.

Option 1: Log in with a terminal

1. Open a terminal window. Enter the following command, where user is your username (typically your NetID) and hostname.chtc.wisc.edu is your assigned access point in your welcome email.

   ssh username@hostname.chtc.wisc.edu
   

2. Enter your password after you are prompted. You will not see * characters appear while you are typing your password but be assured that you are entering your password.

3. You will be prompted for Duo MFA authentication.

   • Option 1: Type 1 and press the ENTER key to send a push to your MFA device. Approve the push request on your device.
   • Option 2: Enter the code from your Duo MFA app or fob then press ENTER.

Option 2: Log in with an SSH program

Each SSH program in the table below has a different procedure, but generally, you'll need to configure it with your username and your hostname.

Log out

Log out by entering exit into the command line. Any submitted jobs will run and return output without you needing to be connected.

SSH programs

This is a non-exhaustive list of programs that can be used to log into CHTC servers or transfer files.

Hostname / Access point information

Please use the access point specified in your welcome email.

Related pages

• Automate CHTC log in
• Connect to CHTC with VS Code
• Basic shell commands
• Transfer files to/from CHTC and your computer