Re: Use one of many second factors authentication on PAM

From	André Rodier <andre@rodier.me>
Newsgroups	linux.debian.user
Subject	Re: Use one of many second factors authentication on PAM
Date	2021-11-15 08:20 +0100
Message-ID	<DjErv-1dE-1@gated-at.bofh.it> (permalink)
References	<DjrXk-1JP-11@gated-at.bofh.it> <Djuiu-3io-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 14/11/2021 20:26, Celejar wrote:
> On Sun, 14 Nov 2021 17:57:53 +0000
> André Rodier <andre@rodier.me> wrote:
> 
>> Hello all,
>>
>> I have been able to configure pam on Linux, to add two factors
>> authentication for session, sudo, etc...
>>
>> First, I tried Google authenticator and a code from my phone, and it is
>> working like a charm.
>>
>> Then, I commented out the google-authenticator entry, and tried a U2F
>> key. Again, this is working very well, and the light blink after I type
>> the password.
>>
>> Same for a Yubikey, working like a charm, and I even have a clue message
>> on GDM "Please touch your device".
>>
>> Now, I would like to achieve the following:
>>
>> - Having my password as the first authentication, of course mandatory.
>> - Then, being able to use one of my second authentication device.
>>
>> This is basically what we have on Google, for instance.
>>
>> Any idea ?
> 
> I think you need to look into the details of PAM stacking. See here:
> 
> https://unix.stackexchange.com/a/638466
> 
> for a discussion of something similar to what you want to do (although you'll have to adapt it
> to your specific preferences), and here for more information:
> 
> https://developer.ibm.com/tutorials/l-pam/
> 
> Celejar
> 

Thanks!

-- 
𝓐𝓡 - André Rodier

Back to linux.debian.user | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Use one of many second factors authentication on PAM André Rodier <andre@rodier.me> - 2021-11-14 19:00 +0100
  Re: Use one of many second factors authentication on PAM Celejar <celejar@gmail.com> - 2021-11-14 21:30 +0100
    Re: Use one of many second factors authentication on PAM André Rodier <andre@rodier.me> - 2021-11-15 08:20 +0100

csiph-web