[Freeipa-users] ssh and sudo password authentication not working with freeipa-client 3.3.4-0ubuntu3.1 on Ubuntu 14.04

[Alexander Skwar]

Hi

Hm, there's nothing at all in the /var/log/sssd/krb5_child.log when I try
to login with SSH and enter a password.

kinit doesn't work.

$ kinit -k
kinit: Permission denied while getting initial credentials

For this test, I was root and then did a "su - user" and then "kinit -k".
Also after the "kinit -k", nothing is in the krb5_child.log.

Regards,
Alexander


2015-10-02 17:59 GMT+02:00 Jakub Hrozek <jhrozek at redhat.com>:

> On Fri, Oct 02, 2015 at 04:28:57PM +0200, Alexander Skwar wrote:
> > Hello
> >
> > How do I get password authentication to work with freeipa-client
> > 3.3.4-0ubuntu3.1 on Ubuntu 14.04 for ssh and sudo?
> >
> > Long version follows :)
> >
> > We've got an IPA server with the Red Hat Identity Management server
> > on RHEL 7.1 servers; FreeIPA v4.1.0 is being used there. I configured
> > users and groups there and would now like to login with SSH. When I
> > store a SSH key for the user account, I can login just fine, using
> > this SSH key. But I'd like/need to use passwords as well. And sudo
> > also doesn't work, when it's asking for passwords - I supposed,
> > it's the same root cause.
> >
> > Let's stick with SSH.
> >
> > Initially, I installed the FreeIPA client with this command line:
> >
> >     ipa-client-install --force-join --mkhomedir --ssh-trust-dns \
> >       --enable-dns-updates --unattended \
> >       --principal=admin --password=correctone \
> >       --domain=customer.company.internal \
> >       --server=auth01.customer.company.internal
> >
> > I then try to do a SSH login with:
> >
> >     ssh -l ewt at customer.company.internal 192.168.229.143
> > or:
> >     ssh -l ewt 192.168.229.143
> >
> > Password authentication doesn't work.
> >
> > In the /var/log/syslog on the system where I try to login, I find this:
> >
> >     2015-10-02T15:33:38.771291+02:00 mgmt02 [sssd[krb5_child[14154]]]:
> > Key table entry not found
> >
> > After having turned up the debug level of the sssd with "sssd -i -f -d
> > 0x0770 --debug-timestamps=1", I find the following in the system log
> > files:
> >
> >     2015-10-02T15:40:48.756399+02:00 mgmt02 sshd[14194]:
> > pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0
> > tty=ssh ruser= rhost=212.71.117.1  user=ewt
> >     2015-10-02T15:40:48.775896+02:00 mgmt02 sshd[14194]:
> > pam_sss(sshd:auth): authentication failure; logname= uid=0 euid=0
> > tty=ssh ruser= rhost=212.71.117.1 user=ewt
> >     2015-10-02T15:40:48.775927+02:00 mgmt02 sshd[14194]:
> > pam_sss(sshd:auth): received for user ewt: 4 (System error)
> >     2015-10-02T15:40:50.988591+02:00 mgmt02 sshd[14194]: Failed
> > password for ewt from 212.71.117.1 port 58136 ssh2
> >
> > TBH, I don't quite understand it. Anyway, in
> > /var/log/sssd/sssd_customer.company.internal.log I noticed:
> >
> >     (Fri Oct  2 15:46:26 2015) [sssd[be[customer.company.internal]]]
> > [read_pipe_handler] (0x0400): EOF received, client finished
> >     (Fri Oct  2 15:46:26 2015) [sssd[be[customer.company.internal]]]
> > [parse_krb5_child_response] (0x0020): message too short.
> >     (Fri Oct  2 15:46:26 2015) [sssd[be[customer.company.internal]]]
> > [krb5_auth_done] (0x0040): Could not parse child response [22]:
> > Invalid argument
> >     (Fri Oct  2 15:46:26 2015) [sssd[be[customer.company.internal]]]
> > [ipa_auth_handler_done] (0x0040): krb5_auth_recv request failed.
> >
> > Well… What am I doing wrong or what might I have forgotten?
>
> We need to also see the krb5_child.log but please check if the keytab is
> correct (ie kinit -k works).
>
> --
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> Go to http://freeipa.org for more info on the project
>



-- 


Alexander
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