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Re: Salsa as authentication provider for Debian

From Xavier <yadd@debian.org>
Newsgroups linux.debian.project
Subject Re: Salsa as authentication provider for Debian
Date 2020-04-08 22:30 +0200
Message-ID <zTpuF-18H-3@gated-at.bofh.it> (permalink)
References <zSCkj-4An-3@gated-at.bofh.it> <zSTO9-6W7-1@gated-at.bofh.it> <zTkY2-6MY-11@gated-at.bofh.it>
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Le 08/04/2020 à 17:28, Luca Filipozzi a écrit :
> reminder: I'm replying linearly and from what I know (keycloak, SAML and
> OIDC).
> 
> 
> On Tue, Apr 07, 2020 at 12:20:40PM +0200, Xavier wrote:
>> Le 05/04/2020 à 20:46, Bastian Blank a écrit :
>> I can help if you want to use lemondap-ng (LLNG:
>> https://lemonldap-ng.org https://tracker.debian.org/pkg/lemonldap-ng)
> 
> Cool.
> 
>> This requires to change all services. Using a SSO is easier here:
>> gatekeeper (KeyCloack) or handler (LLNG) permits to protect a web app
>> without having to change to many things. LLNG handlers are directly
>> included in Apache/Nginx configuration and provides HTTP-headers to the
>> web app.
> 
> Or Apache modules like mod-auth-openidc (OIDC) or mod-auth-mellon
> (SAML).

Hi,

LLNG handlers are apache modules. The difference is that they don't only
manage authentication but also authorizations

>> Other way, LLNG is able to be a proxy between OAuth (OpenID-Connect) and
>> any other SSO-language (CAS, SAML, OpenID-2) or handlers. The portal
>> then becomes transparent
> 
> Keycloak, as a broker, is similar. Service provider can be using one
> protocol and the identity provider another.
> 
>> It's easy to integrate GitLab in SSO using SAML (or OIDC). It is perhaps
>> more safe to manage users elsewhere (custom app) and make GitLab a slave
>> of SSO system. LLNG provides a plugin engine for that.
> 
> Gitlab can use OIDC for OmniAuth, so it can authenticate against any
> OIDC-compliant IdP, LLNG and Keycloak included.
> 
>> NB: KeyCloak is free but this needs to stay in last version, else you
>> need a RedHat-SSO support. LLNG is totally free, written in Perl and JS;
>> and Debian has a lot of Perl-Gurus ;-).
> 
> Redhat has the distinction (thankfully) of not following a 'freemium'
> model (at least for Directory389 and Keycloak). The features available
> in RedHat SSO and Keycloak are identical. Redhat SSO lags behind
> Keycloak but may include fixes not yet ported to Keycloak. Keycloak is
> also totally free and, yes, is written in Java.
> 
>> I can give some accounts to demo platform: https://auth.openid.club/
>> [dev platform, so sometime broken...] or install an instance in a Debian
>> machine if you want to try it.
> 
> 
> Please work with Michael Lustfield (IRC MTecknology) as he is also
> interested in setting upa Debian-specific instance of LLNG.

With pleasure !

>> Resume of proposition:
>>  * all users managed by SSO;
> 
> Agree!
> 
>>  * self-registration authorized with "-guest"
>>    in a distinct LDAP branch
> 
> More thought required but don't disagree.
> 
>>  * GitLab becomes a slave of SSO using SAML (or OIDC)
> 
> Agree!
> 
>>  * other applications are protected by handlers/GateKeepers. If LLNG is
>>    chosen, just to add few lines in Nginx configuration
> 
> Agree and/or mod-auth-openidc/mod-auth-lemon, etc.
> 
>>  * new applications can be protected using handlers, SAML, CAS, OIDC,...
> 
> Agree but with order of preference being OIDC, SAML and... way over
> there, almost too distant to see... CAS.

Of course, old protocol.

Choosing between handlers and federation protocols depends on how we
want to manage authorizations:
 * centralized authorization: handlers (authorization managed by manager
   application, websites are filtered globally or using regxp on URLs
 * managed in application: both way

This is the choice to do (both ways are possible simultaneously)

>> <as usual, sorry for my poor English>
> 
> Very helpful response!

Thanks ;-)

---
/me has worked for 15 years on Identity and Access Management (IAM) topics

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Thread

Salsa as authentication provider for Debian Bastian Blank <waldi@debian.org> - 2020-04-06 18:00 +0200
  Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-06 18:20 +0200
    Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-06 20:50 +0200
      Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-06 21:20 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-07 10:40 +0200
          Re: Salsa as authentication provider for Debian Geert Stappers <stappers@debian.org> - 2020-04-07 11:30 +0200
          Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 17:10 +0200
            Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 17:40 +0200
              Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 18:00 +0200
                Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-09 09:50 +0200
                Re: Salsa as authentication provider for Debian Michael Lustfield <michael@lustfield.net> - 2020-04-09 12:20 +0200
                Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-10 09:30 +0200
                Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-10 14:50 +0200
                Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-10 18:00 +0200
                Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-10 18:30 +0200
                Re: Salsa as authentication provider for Debian Russ Allbery <rra@debian.org> - 2020-04-10 19:30 +0200
                Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-10 20:20 +0200
                Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-10 22:10 +0200
                Re: Salsa as authentication provider for Debian Russ Allbery <rra@debian.org> - 2020-04-10 22:30 +0200
      Re: Salsa as authentication provider for Debian Michael Lustfield <michael@lustfield.net> - 2020-04-06 21:50 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-10 09:50 +0200
          Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-10 10:30 +0200
          Re: Salsa as authentication provider for Debian Felix Lechner <felix.lechner@lease-up.com> - 2020-04-10 21:50 +0200
            Re: Salsa as authentication provider for Debian kuLa <kula@kulisz.net> - 2020-04-11 08:30 +0200
            Re: Salsa as authentication provider for Debian Jonathan Carter <jcc@debian.org> - 2020-04-11 12:10 +0200
              Re: Salsa as authentication provider for Debian Michael Lustfield <michael@lustfield.net> - 2020-04-11 19:30 +0200
                Re: Salsa as authentication provider for Debian Sam Hartman <leader@debian.org> - 2020-04-11 20:20 +0200
    Re: Salsa as authentication provider for Debian Bastian Blank <waldi@debian.org> - 2020-04-07 10:40 +0200
      Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 17:30 +0200
        Re: Salsa as authentication provider for Debian Bastian Blank <waldi@debian.org> - 2020-04-10 12:20 +0200
          Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-10 19:10 +0200
  Re: Salsa as authentication provider for Debian Holger Levsen <holger@layer-acht.org> - 2020-04-06 21:00 +0200
  Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-07 12:40 +0200
    Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-07 14:10 +0200
      Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-07 14:40 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-07 15:30 +0200
          Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-07 15:40 +0200
            Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-07 16:10 +0200
              Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-07 16:30 +0200
                Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 17:50 +0200
      Re: Salsa as authentication provider for Debian Michael Lustfield <michael@lustfield.net> - 2020-04-07 16:30 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-07 17:00 +0200
    Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 17:40 +0200
      Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-08 22:30 +0200
  Re: Salsa as authentication provider for Debian Paul Wise <pabs@debian.org> - 2020-04-07 17:30 +0200
    Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-07 17:40 +0200
      Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-07 19:00 +0200
        Re: Salsa as authentication provider for Debian Xavier <yadd@debian.org> - 2020-04-10 21:50 +0200
    Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-07 19:00 +0200
    Re: Salsa as authentication provider for Debian Bastian Blank <waldi@debian.org> - 2020-04-07 20:30 +0200
      Re: Salsa as authentication provider for Debian Paul Wise <pabs@debian.org> - 2020-04-08 08:00 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 11:40 +0200
  Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-08 12:30 +0200
    Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 18:00 +0200
    Re: Salsa as authentication provider for Debian Tollef Fog Heen <tfheen@err.no> - 2020-04-08 21:20 +0200
      Re: Salsa as authentication provider for Debian Steve McIntyre <93sam@debian.org> - 2020-04-08 21:40 +0200
      Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-09 09:30 +0200
        Re: Salsa as authentication provider for Debian Tollef Fog Heen <tfheen@err.no> - 2020-04-09 20:10 +0200
          Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-09 20:30 +0200
          Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-09 23:30 +0200
            Re: Salsa as authentication provider for Debian Tollef Fog Heen <tfheen@err.no> - 2020-04-12 10:40 +0200
              Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-12 18:50 +0200
                Re: Salsa as authentication provider for Debian Tollef Fog Heen <tfheen@err.no> - 2020-04-13 18:50 +0200
                Re: Salsa as authentication provider for Debian Pirate Praveen <praveen@onenetbeyond.org> - 2020-04-13 19:50 +0200
  Re: Salsa as authentication provider for Debian Shengjing Zhu <zhsj@debian.org> - 2020-04-08 14:00 +0200
    Re: Salsa as authentication provider for Debian Shengjing Zhu <zhsj@debian.org> - 2020-04-08 14:20 +0200
      Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 15:00 +0200
    Re: Salsa as authentication provider for Debian Ulrike Uhlig <ulrike@debian.org> - 2020-04-08 14:20 +0200
      Re: Salsa as authentication provider for Debian Shengjing Zhu <zhsj@debian.org> - 2020-04-08 14:30 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 15:30 +0200
          Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-08 16:10 +0200
            Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 16:30 +0200
          Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-08 18:10 +0200
            Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-09 10:10 +0200
      Re: Salsa as authentication provider for Debian Ole Streicher <olebole@debian.org> - 2020-04-08 14:40 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-10 21:50 +0200
    Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 14:20 +0200
    Re: Salsa as authentication provider for Debian Bastian Blank <waldi@debian.org> - 2020-04-08 14:40 +0200
      Re: Salsa as authentication provider for Debian Shengjing Zhu <zhsj@debian.org> - 2020-04-08 14:50 +0200
        Re: Salsa as authentication provider for Debian Enrico Zini <enrico@enricozini.org> - 2020-04-08 15:00 +0200
          Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-08 15:20 +0200
      Re: Salsa as authentication provider for Debian Julien Cristau <jcristau@debian.org> - 2020-04-10 21:50 +0200
        Re: Salsa as authentication provider for Debian Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-11 09:30 +0200
          Re: Salsa as authentication provider for Debian Julien Cristau <jcristau@debian.org> - 2020-04-11 19:30 +0200
            Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-11 20:10 +0200
            Re: Salsa as authentication provider for Debian Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-12 07:30 +0200
              Re: Salsa as authentication provider for Debian Luca Filipozzi <lfilipoz@debian.org> - 2020-04-12 17:00 +0200
                Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-13 16:00 +0200
                Re: Salsa as authentication provider for Debian Peter Palfrader <weasel@debian.org> - 2020-04-13 21:00 +0200
                Re: Salsa as authentication provider for Debian Sam Hartman <hartmans@debian.org> - 2020-04-13 21:30 +0200

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