Duo and 3rd Party Clients
From FarmShare
Cyberduck SFTP
CyberDuck is the recommended SFTP transfer program due to the way it can handle session sharing, and ease of use. Download CyberDuck from https://cyberduck.io/?l=en and install. Once installed be sure to set File Transfer settings to "Use browser connection" to avoid having to authenticate each time you want to transfer a file.
SecureCRT
To open new sessions in SecureCRT, after logging and establishing a connection to Farmshare, right-click on the session name, and click 'Clone Session'. This will open a second terminal connection to that node, and will not require you to enter authentication information again if you are using Kerberos to authenticate.
Putty
The latest 'Development Snapshot' of putty allows you to 'Share connection when possible' and will allow users to open multiple sessions to Farmshare without having to authenticate each time. Download the latest 'development snapshot' from here: http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
Once running, on the left panel click SSH to enter the SHH configuration menu. Check the box for 'Share SSH connection when possible' and when opening a new session to that same node, Putty will re-use your established connection for the new session, and not require you to enter authentication information again.