Beginning in Fall 2021, CUIT requires that all logins to CUNIX be verified with Duo multifactor authentication as part of our efforts to secure the University's virtual environment. Please follow the steps below to use Duo on CUNIX.
Open the Putty client and enter the server information for your desired connection. (The below example lists the connection settings for CUIT’s MFA Linux jump host. The workflow will be the same for CUNIX as well.)
a. If you have no saved sessions you will need to type in the hostname into the Host Name (or IP address) field, the port that you will be communicating with into the Port field, and the type of connection you are making by selecting the appropriate radio button.
b. Some common connections at Columbia University are listed below. You can save these connection settings before starting the session by entering your desired connection name to the Saved Sessions field and clicking Save.