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[farmshare-discuss] Two-Factor Coming to Farmshare June 16th!

Alex Chekholko chekh at
Wed Aug 19 11:04:30 PDT 2015

Hi Tomer,

You are welcome to continue to use the Google Authenticator app, or any 
other method that works with Stanford Two-Step authentication.

You can check your Two-Step settings at: -> Two-Step Auth

For example, you can use SMS to a phone number, or a hardware token, or 
a printed list of OTP codes.

You are correct that Duo is a proprietary application; unfortunately no 
equally convenient Free Software alternative exists at the moment.

Unfortunately the Android version of Google Authenticator doesn't seem 
to be Free Software either.


On 8/19/15 10:24 AM, taltman wrote:
> A note about the Duo App:
> I have been successfully logging in to Corn using the open-source Google
> Authenticator app for Android. I have not needed to download the Duo App.
> How much do we know about the Duo app? Has it been audited? Does it
> require excessive permissions/access to run on one's phone? Is it
> sending personal information back to Duo the company?
> I personally would advocate for people to use the Google Authenticator
> app instead. Requiring all of Stanford FarmShare users to install
> proprietary third-party software on their cellphones seems like a bad
> policy.
> My $0.02,
> ~Tomer
> On 6/11/15 11:30 AM, Addis O'Connor wrote:
>> Dear Farmshare Community,
>> You may have noticed a new Mesasge of the Day when logging on to
>> Farmshare machines in the past month or so. It mentions our plan to
>> enable Duo two-factor authentication on Farmshare machines on Tuesday,
>> June16th, immediately after the commencement freeze.
>> There will most definitely be a slight change in the way you login to
>> farmshare, and our hope is to make that as smooth and painless as
>> possible. We have updated our wiki page
>> with information regarding how to use ssh shared tunnels and avoid
>> having to use duo every time a new session is opened.
>> There are already a few machines that are already enforcing two-factor
>> authentication, and we strongly encourage users to try logging in and
>> test out the new authentication process. The two test machines are
>> corn19 and corn37, and they are also setup to allow connections to each
>> other without duo again after the initial connection.
>> This change has come about to ensure the integrity of Farmshare and keep
>> our system protected from attackers. We hope this change will be
>> welcomed and will ultimately provide a more secure system on which to do
>> research.
>> We are happy to answer any questions you may have, and will be ready to
>> assist any users with the new process if any issues may arise. Please
>> send questions, comments, and or issues to
>> research-computing-support at
>> Regards,
>> --
>> Addis O'Connor
>> Stanford University
>> Research Computing
>> addiso at
>> (650)529-5782
>> _______________________________________________
>> farmshare-discuss mailing list
>> farmshare-discuss at
> _______________________________________________
> farmshare-discuss mailing list
> farmshare-discuss at

chekh at 347-401-4860 chekh at

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