AD Join - "expected string or buffer" - Resolved

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Brief description of the problem

I can’t join AD. I use to have my rockstor in the AD, but due to recent upgrade failure had to reload the OS and ran into this issue. Originally I was running older than 3.8.16 when I first joined the domain so not sure if this is an issue with the newer release. Later I plan on using an older copy and see if I get a change of status.

Detailed step by step instructions to reproduce the problem

Fresh install of 3.8.16-16
Added my AD info (Server 2008).
Samba service on / off did not matter same results.
“realm join” had missing packages samba-common-tools, sssd, oddjob, oddjob-mkhomedir
yum install the above.
No change.
used the gui to update rockstor to 3.9.0-7
“realm join -v” works but users are not imported.

[root@nas ~]# systemctl status smb
● smb.service - Samba SMB Daemon
Loaded: loaded (/etc/systemd/system/smb.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2017-05-24 02:51:08 PDT; 3min 50s ago
Main PID: 12969 (smbd)
Status: “smbd: ready to serve connections…”
CGroup: /system.slice/smb.service
├─12969 /usr/sbin/smbd
├─12970 /usr/sbin/smbd
├─12971 /usr/sbin/smbd
└─12972 /usr/sbin/smbd

May 24 02:51:06 nas systemd[1]: Starting Samba SMB Daemon…
May 24 02:51:06 nas systemd[1]: smb.service: Supervising process 12969 which is not our child. We’ll most likely not notice when it exits.
May 24 02:51:08 nas smbd[12969]: [2017/05/24 02:51:08.079567, 0] …/lib/util/become_daemon.c:124(daemon_ready)
May 24 02:51:08 nas smbd[12969]: STATUS=daemon ‘smbd’ finished starting up and ready to serve connections
May 24 02:51:08 nas systemd[1]: Started Samba SMB Daemon.

[root@nas ~]# realm join -v

  • Resolving:
  • Performing LDAP DSE lookup on:
  • Successfully discovered:
    Password for Administrator:
  • Required files: /usr/sbin/oddjobd, /usr/libexec/oddjob/mkhomedir, /usr/sbin/sssd, /usr/bin/net
  • LANG=C LOGNAME=root /usr/bin/net -s /var/cache/realmd/realmd-smb-conf.HVZZ0Y -U Administrator ads join
    Enter Administrator’s password:DNS update failed: NT_STATUS_INVALID_PARAMETER

Using short domain name – DILLONSOCIETY
Joined ‘NAS’ to dns domain ‘
No DNS domain configured for nas. Unable to perform DNS Update.

  • LANG=C LOGNAME=root /usr/bin/net -s /var/cache/realmd/realmd-smb-conf.HVZZ0Y -U Administrator ads keytab create
    Enter Administrator’s password:
  • /usr/bin/systemctl enable sssd.service
    Created symlink from /etc/systemd/system/ to /usr/lib/systemd/system/sssd.service.
  • /usr/bin/systemctl restart sssd.service
  • /usr/bin/sh -c /usr/sbin/authconfig --update --enablesssd --enablesssdauth --enablemkhomedir --nostart && /usr/bin/systemctl enable oddjobd.service && /usr/bin/systemctl start oddjobd.service
  • Successfully enrolled machine in realm
    [root@nas ~]#
Gui no change on join.

Web-UI screenshot

Error Traceback provided on the Web-UI

Traceback (most recent call last): File "/opt/rockstor/src/rockstor/rest_framework_custom/", line 41, in _handle_exception yield File "/opt/rockstor/src/rockstor/smart_manager/views/", line 199, in post smb_config = self._get_config(smbo) File "/opt/rockstor/src/rockstor/smart_manager/views/", line 40, in _get_config return json.loads(service.config) File "/usr/lib64/python2.7/json/", line 338, in loads return _default_decoder.decode(s) File "/usr/lib64/python2.7/json/", line 366, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) TypeError: expected string or buffer

Thank You

Found the string issue, I did not configure SAMBA workgroup.