python/join: use lowercase for the dnshostname.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 5533d9c3db31ac86769288527ec20ad4e57f703c)

diff --git a/python/samba/join.py b/python/samba/join.py
index 7d2f913b571b1547266f3fb6948c4e100a12f073..ee973a1bd8c6461a95a2d6b9010addd2cc54abcf 100644 (file)
--- a/python/samba/join.py
+++ b/python/samba/join.py
@@ -133,7 +133,7 @@ class dc_join(object):
             else:
                 ctx.dns_backend = dns_backend
 
-        ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
+        ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
 
         ctx.realm = ctx.dnsdomain
 
@@ -1198,7 +1198,7 @@ def join_subdomain(server=None, creds=None, lp=None, site=None,
     ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
     ctx.domsid = str(security.random_sid())
     ctx.acct_dn = None
-    ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
+    ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
     ctx.trustdom_pass = samba.generate_random_password(128, 128)
 
     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION