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Re: [Samba] SSH SSO without keytab file




Hai, 

Lets start here. 
Handy for us to know. 
OS? 
Samba version? 
AD or member setup? 

And I suggest, set this in the ssh server. 

# GSSAPI options
GSSAPIAuthentication yes

Restart the ssh server and try to SSO login. 
If its a AD server this should work. 

Yes, you dont get home dir etc, end up in / after login, but lets check if this works.


Greetz, 

Louis



> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces@xxxxxxxxxxxxxxx] Namens 
> Harpoon via samba
> Verzonden: dinsdag 15 januari 2019 9:45
> Aan: samba@xxxxxxxxxxxxxxx
> Onderwerp: [Samba] SSH SSO without keytab file
> 
> Hi all,
> 
> I've setup a SambaAD server. I joined two Linux test hosts, a 
> Windows test host and an SSH server to the domain. Here are 
> my requirements:
> 
> 1. I plan to use Samba accounts to authenticate the users for SSH.
> 2. Users shouldn't have to re-enter their passwords to connect to SSH.
> 
> The link at [1] gives some hints on setting up SSO and SSH. 
> But that guide requires creation (and re-creation upon 
> password change) of keytab files.
> 
> Is there a way to get SSO without using keytab files? My 
> rather theoretical knowledge of Kerberos says that the user 
> should get a TGT when logging in for a new session (using 
> LightDM). Can't the same TGT be used by ssh client to request 
> a ticket from Kerberos Authentication Server for SSH server?
> 
> This approach will save me from management and routine 
> re-creation of keytab files.
> 
> Kind regards,
> Harp
> 
> [1] 
> https://wiki.samba.org/index.php/OpenSSH_Single_sign-on#SSH_cl
> ient_setup
> 
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