In all cases on both system pam_unix comes before pam_sss. For example in Fedora system-auth it is:
auth [success=done ignore=ignore default=die] pam_unix.so nullok try_first_pass auth requisite pam_succeed_if.so uid >= 1000 quiet_success auth sufficient pam_sss.so forward_pass
and in Ubuntu common-auth it is:
auth [success=2 default=ignore] pam_unix.so nullok_secure auth [success=1 default=ignore] pam_sss.so use_first_pass
I tried reversing the lines and get a pam error about user not know (it is an AD user which works fine on fedora).
Also, it looks like pam_pkcs11.so is used in smartcard-auth on Fedora. Don't know if this is relevant or not.
Steve
On Thu, Sep 28, 2017 at 11:40 AM, Sumit Bose via FreeIPA-users < freeipa-users@lists.fedorahosted.org> wrote:
On Thu, Sep 28, 2017 at 11:29:27AM -0400, Steve Weeks via FreeIPA-users wrote:
We have smartcards (PIV) working just fine on Fedora 25 with FreeIPA
client
version 4.4.4 (SSSD 1.14.2). However on Ubuntu 16.04, FreeIPA client 4.3.1, SSSD 1.13.4 the smartcard seems to be ignored.
The smartcard is readable using pkcs11-tools and pkcs15-tools on both systems.
On both systems sssd.conf contains: [pam] pam_cert_auth = True
I've turned the sssd logging up to 9 on both systems and it looks like p11_child is never called on the Ubuntu system. On the Ubuntu system p11_child.log is empty and there is no sign of it being started in the sssd_pam.log.
Any suggestions on what I should look at next?
How does your PAM configuration looks like? You have to make sure that pam_sss.so is the first module called for SSSD users. If pam_unix comes first it will ask for a Password and pass it on to pam_sss.so which will try password authentication in this case.
HTH
bye, Sumit
Thanks, Steve
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