[Freeipa-users] ipa: ERROR: did not receive Kerberos credentials

Thu Apr 10 12:37:25 UTC 2014

The krb5 files are not readable by everyone. There are multiple krb5 files 
in tmp, should they automatically be readable by all? BTW our users do not 
have home directories if that makes a difference.

[rkelly at replicahostname ~]$ ls -lZ /tmp |grep krb
-rw-------  root    root    ?                                krb5cc_0
-rw-------  xs05144 xs05144 ? krb5cc_1599000020_u5RRhd
-rw-------  rkelly  rkelly  ? krb5cc_1599100000_oKtZFE
-rw-------  rkelly  rkelly  ? krb5cc_1599100000_ZekyY0
-rw-------  apache  apache  ?                                krb5cc_48

ipa-server-selinux-3.0.0-37.el6.x86_64
ipa-client-3.0.0-37.el6.x86_64
ipa-server-3.0.0-37.el6.x86_64
ipa-pki-common-theme-9.0.3-7.el6.noarch
libipa_hbac-python-1.9.2-129.el6_5.4.x86_64
ipa-python-3.0.0-37.el6.x86_64
ipa-admintools-3.0.0-37.el6.x86_64
ipa-pki-ca-theme-9.0.3-7.el6.noarch
libipa_hbac-1.9.2-129.el6_5.4.x86_64
python-iniparse-0.3.1-2.1.el6.noarch

[rkelly at replicahostname ~]$ cat /proc/mounts | grep /tmp
/dev/mapper/system-tmp_vol /tmp ext4 rw,relatime,barrier=1,data=ordered 0 
0
[rkelly at replicahostname ~]$ echo $KRB5CCNAME
FILE:/tmp/krb5cc_1599100000_oKtZFE

[rkelly at replicahostname ~]$ ls -lZ /tmp/krb5cc_1599100000_oKtZFE
-rw------- rkelly rkelly ? /tmp/krb5cc_1599100000_oKtZFE

[rkelly at replicahostname ~]$ KRB5_TRACE=/dev/stderr kinit
[14559] 1397132474.221287: Getting initial credentials for rkelly at DOMAIN
[14559] 1397132474.221510: Sending request (191 bytes) to DOMAIN
[14559] 1397132474.221677: Sending initial UDP request to dgram 
10.228.20.25:88
[14559] 1397132474.225248: Received answer from dgram 10.228.20.25:88
[14559] 1397132474.225287: Response was from master KDC
[14559] 1397132474.225306: Received error from KDC: -1765328359/Additional 
pre-authentication required
[14559] 1397132474.225331: Processing preauth types: 136, 19, 2, 133
[14559] 1397132474.225343: Selected etype info: etype aes256-cts, salt 
"IPA2.DC.SITA.AEROrkelly", params ""
[14559] 1397132474.225346: Received cookie: MIT
Password for rkelly at DOMAIN:
[14559] 1397132484.255381: AS key obtained for encrypted timestamp: 
aes256-cts/DBF7
[14559] 1397132484.255432: Encrypted timestamp (for 1397132484.255390): 
plain 301AA011180F32303134303431303132323132345AA105020303E59E, encrypted 
321A6A1E297880D1E2D1BF069D6D44136D7A2A0D3AAFC3209CB9B4E5BAAE59E928559E47FD0A140F68D377A8398D7CAB4B735D0612247A7C
[14559] 1397132484.255453: Preauth module encrypted_timestamp (2) 
(flags=1) returned: 0/Success
[14559] 1397132484.255457: Produced preauth for next request: 133, 2
[14559] 1397132484.255474: Sending request (286 bytes) to DOMAIN (master)
[14559] 1397132484.255560: Sending initial UDP request to dgram 
10.228.20.25:88
[14559] 1397132484.262563: Received answer from dgram 10.228.20.25:88
[14559] 1397132484.262593: Processing preauth types: 19
[14559] 1397132484.262600: Selected etype info: etype aes256-cts, salt 
"DOMAINrkelly", params ""
[14559] 1397132484.262603: Produced preauth for next request: (empty)
[14559] 1397132484.262609: AS key determined by preauth: aes256-cts/DBF7
[14559] 1397132484.262650: Decrypted AS reply; session key is: 
aes256-cts/B097
[14559] 1397132484.262664: FAST negotiation: available
[14559] 1397132484.262681: Initializing FILE:/tmp/krb5cc_1599100000_oKtZFE 
with default princ rkelly at DOMAIN

[rkelly at replicahostname ~]$ KRB5_TRACE=/dev/stderr klist
klist: Credentials cache permissions incorrect while setting cache flags 
(ticket cache FILE:/tmp/krb5cc_1599100000_oKtZFE)

--

Thank You,
Rashard Kelly

From:   Alexander Bokovoy <abokovoy at redhat.com>
To:     Rashard.Kelly at sita.aero
Cc:     freeipa-users at redhat.com
Date:   04/10/2014 03:25 AM
Subject:        Re: [Freeipa-users] ipa: ERROR: did not receive Kerberos 
credentials

On Thu, 10 Apr 2014, Rashard.Kelly at sita.aero wrote:
>Hello all
>
>
>When I try to execute and commands from the an ipa-replica I get
>
>[rkelly at replicahostname ~]$ ipa user-find
>ipa: ERROR: did not receive Kerberos credentials
>[rkelly at replicahostname ~]$ kinit
>Password for rkelly at IPA2.DC.SITA.AERO:
>[rkelly at replicahostname ~]$ ipa user-find
>ipa: ERROR: did not receive Kerberos credentials
>[rkelly at replicahostname ~]$ klist
>klist: Credentials cache permissions incorrect while setting cache flags
>(ticket cache FILE:/tmp/krb5cc_1599100000_qojy7v)
>
>I thought perhaps the two are out of sync
>[root at replicahostname ~]# ipa-replica-manage re-initialize --from
>liipaxs010p.ipa2.dc.sita.aero
>Invalid password
>
>
>ipa-replica-conncheck says communication is ok.
>
>I looked at the httpd, secure,and krb log and none show any activity when
>I execute the commands above. Im lost any clues as to where I can look 
for
>answers?
Let's put IPA commands aside and first find out what's wrong with your
Kerberos infra. Looking at your ticket cache file name
(FILE:/tmp/krb5cc_1599100000_qojy7v) I assume you have come to this
machine via SSH and the ticket cache is created by the sshd or sssd.

The message you received out of klist is shown if ccache file is either:
  - unaccessible for the user
  - is a directory rather than a file
  - is a broken symlink
  - blocked by some app with explusive locks
  - cannot be open for a write

Please provide output of 
$ cat /proc/mounts | grep /tmp
$ echo $KRB5CCNAME
$ ls -lZ /tmp/krb5cc_1599100000_qojy7v
$ KRB5_TRACE=/dev/stderr kinit
$ KRB5_TRACE=/dev/stderr klist

You can temporarily overcome this issue by selecting a different ticket
cache by setting KRB5CCNAME environmental variable:

$ export KRB5CCNAME=$HOME/.krb5cc
$ kinit
$ ipa user-find
...

However, it would be good to solve the issue to avoid repeating these 
problems

-- 
/ Alexander Bokovoy

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