Description of problem:
when using "winbind separator = ." in /etc/samba/smb.conf (security = ADS) and
attempting "net ads join"

The following error occurs, on occassion (seems to happen mostly when Windows
Domain Controllers) are on separate subnet over a WAN connection)

error:
Failed to join domain: Improperly formed account name

workaround is to use "\" or possibly any other separator besides "." in
/etc/samba/smb.conf, e.g. "winbind separator = \"

issue "net ads join" and then edit /etc/samba/smb.conf to put back the "."
separator and restart winbind.  -- error only occurs at initial ads join.




Version-Release number of selected component (if applicable): I've seen this
behavior sporadically over the last few years.


How reproducible: occurs only occassionally, mostly when I attempt to join a
host in a remote location, with the nearest MS Domain Controller on a different
subnet), but I would not swear that that is always the case.


Steps to Reproduce:
1.include " winbind separator = ." in /etc/samba/smb.conf , using security = ADS
2.config /etc/krb5.conf appropriately
3.run "net ads join"
  
Actual results:
Failed to join domain: Improperly formed account name (I beleive its appending a
"." to the hostname on join.


Expected results:
Joined 'HOSTNAME' to realm 'SOME.DOMAIN.COM'

Additional info: