On Thu, 23 Aug 2018, 20:18 Sumit Bose, wrote: > On Thu, Aug 23, 2018 at 06:05:19PM +0100, John Beranek wrote: > > Hi, > > > > I was just looking in our Active Directory for computer account for > > CentOS 6 and 7 servers, and was surprised that the pwdLastSet value > > for accounts was many months in the past. > > > > So, I took a test CentOS 7 server and set the debug_level up to 7. > > What I found was the following (redacted internal details): > > > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] [be_ptask_execute] > > (0x0400): Task [EXAMPLE machine account password renewal]: executing > > task, timeout 60 seconds > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] [child_sig_handler] > > (0x1000): Waiting for child [186603]. > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] [child_sig_handler] > > (0x0020): child [186603] failed with status [3]. > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] [read_pipe_handler] > > (0x0400): EOF received, client finished > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] > > [ad_machine_account_password_renewal_done] (0x1000): --- adcli output > > start--- > > * Found realm in keytab: EXAMPLE.COM > > * Found computer name in keytab: pal062-dev > > * Found service principal in keytab: cifs/srv062-dev > > * Found service principal in keytab: cifs/srv062-dev.EXAMPLE.COM > > * Using fully qualified name: srv062-dev.EXAMPLE.COM > > * Using domain name: EXAMPLE.COM > > * Calculated computer account name from fqdn: SRV062-DEV > > * Using domain realm: EXAMPLE.COM > > * Sending netlogon pings to domain controller: cldap://10.20.30.100 > > * Received NetLogon info from: dc03.EXAMPLE.COM > > * Wrote out krb5.conf snippet to > > /tmp/adcli-krb5-UWvCeO/krb5.d/adcli-krb5-conf-9dw0Is > > ! Couldn't get kerberos ticket for machine account: SRV062-DEV: > > Keytab contains no suitable keys for SRV062-DEV$@EXAMPLE.COM > > adcli: couldn't connect to EXAMPLE.COM domain: Couldn't get kerberos > > ticket for machine account: SRV062-DEV: Keytab contains no suitable > > keys for SRV062-DEV$@EXAMPLE.COM > > ---adcli output end--- > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] [be_ptask_done] > > (0x0400): Task [EXAMPLE machine account password renewal]: finished > > successfully > > (Thu Aug 23 17:57:45 2018) [sssd[be[EXAMPLE]]] [be_ptask_schedule] > > (0x0400): Task [EXAMPLE machine account password renewal]: scheduling > > task 60 seconds from last execution time [1535043525] > > > > The server's keytab has: > > > > Keytab name: FILE:/etc/krb5.keytab > > KVNO Timestamp Principal > > ---- ------------------- > ------------------------------------------------------ > > 23 03/15/2018 09:59:33 srv062-dev$@EXAMPLE.COM > > 23 03/15/2018 09:59:33 srv062-dev$@EXAMPLE.COM > > 23 03/15/2018 09:59:33 srv062-dev$@EXAMPLE.COM > > 23 03/15/2018 09:59:33 srv062-dev$@EXAMPLE.COM > > 23 03/15/2018 09:59:33 srv062-dev$@EXAMPLE.COM > > 23 03/15/2018 09:59:33 cifs/srv062-...@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-...@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-...@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-...@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-...@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-dev.ad....@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-dev.ad....@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-dev.ad....@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-dev.ad....@example.com > > 23 03/15/2018 09:59:33 cifs/srv062-dev.ad....@example.com > > > > Any ideas what could be wrong? Is it potentially because the keytab > > has srv062-dev$ and not SRV062-DEV$ ? > > You are right, adcli unfortunately ignores the lower case version of the > principal in the keytab and prefers to calculate/guess ("Calculated > computer account name from fqdn: SRV062-DEV") it on its own. > > I fixed this for the next version of RHEL7. >
Is there a way to join the domain with adcli and get the upper case version then? (Or I wonder if my keytab format is due to a prior use of "net ads join" - I honestly forget if that's a possibility) John
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