[Samba] Mac OS and interpretation of @ in a username. Ex user at mds.xyz doesn't work on Mac OS but does on Win 10

[TomK]

On 2/21/2020 12:52 AM, TomK via samba wrote:
> Hey Guy's,
> 
> When the user is 'joe at mds.xyz' login works fine on Win 10.  Same user 
> types on a Mac OS gives
> 
> 

[2020/02/21 00:03:17.050984,  4, pid=12382, effective(0, 0), real(0, 0)] 
../source3/smbd/sec_ctx.c:438(pop_sec_ctx)
   pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 1
[2020/02/21 00:03:17.051095,  3, pid=12382, effective(0, 0), real(0, 0), 
class=auth] ../source3/auth/check_samsec.c:399(check_sam_security)
   check_sam_security: Couldn't find user 'joe' in passdb.
[2020/02/21 00:03:17.051222,  5, pid=12382, effective(0, 0), real(0, 0), 
class=auth] ../source3/auth/auth.c:251(auth_check_ntlm_password)
   auth_check_ntlm_password: sam_ignoredomain authentication for user 
[joe] FAILED with error NT_STATUS_NO_SUCH_USER, authoritative=1
[2020/02/21 00:03:17.051358,  2, pid=12382, effective(0, 0), real(0, 0), 
class=auth] ../source3/auth/auth.c:332(auth_check_ntlm_password)
   check_ntlm_password:  Authentication for user [joe] -> [joe] FAILED 
with error NT_STATUS_NO_SUCH_USER, authoritative=1
[2020/02/21 00:03:17.051573,  2, pid=12382, effective(0, 0), real(0, 0)] 
../auth/auth_log.c:760(log_authentication_event_human_readable)
   Auth: [SMB2,(null)] user [NFS03]\[joe] at [Fri, 21 Feb 2020 
00:03:17.051454 EST] with [NTLMv2] status [NT_STATUS_NO_SUCH_USER] 
workstation [JOHN-PC] remote host [ipv4:192.168.0.6:55405] mapped to 
[NFS03]\[joe]. local host [ipv4:192.168.0.125:445]
[2020/02/21 00:03:17.051751,  5, pid=12382, effective(0, 0), real(0, 0)] 
../source3/auth/auth_ntlmssp.c:199(auth3_check_password)
   Checking NTLMSSP password for NFS03\joe failed: 
NT_STATUS_NO_SUCH_USER, authoritative=1
[2020/02/21 00:03:17.051951,  5, pid=12382, effective(0, 0), real(0, 0)] 
../auth/ntlmssp/ntlmssp_server.c:751(ntlmssp_server_check_password)
   ../auth/ntlmssp/ntlmssp_server.c:751: Checking NTLMSSP password for 
NFS03\joe failed: NT_STATUS_NO_SUCH_USER
[2020/02/21 00:03:17.052077,  2, pid=12382, effective(0, 0), real(0, 0)] 
../auth/gensec/spnego.c:605(gensec_spnego_server_negTokenTarg)
   SPNEGO login failed: NT_STATUS_NO_SUCH_USER
[2020/02/21 00:03:17.052226,  4, pid=12382, effective(0, 0), real(0, 0)] 
../source3/smbd/sec_ctx.c:438(pop_sec_ctx)


Below is the mapping that happens when typing joe at mds.xyz in both cases. 
  Login ultimately fails on the Macbook:

> 
> 
> [ Mac OS - Fails ]
> 
> [2020/02/21 00:03:16.960566,  5, pid=12382, effective(0, 0), real(0, 0), 
> class=auth] ../source3/auth/auth_util.c:126(make_user_info_map)
>    Mapping user [mds.xyz]\[joe] from workstation [SERVER-PBM]
> 
> 
> 
> [ Win 10 - Works ]
> 
>      [2020/02/20 23:58:01.059514,  5, pid=11929, effective(0, 0), 
> real(0, 0), class=auth] ../source3/auth/auth_util.c:126(make_user_info_map)
>    Mapping user []\[joe at mds.xyz] from workstation [JOHN-PC]
> 
> 
> User types in both cases is: joe at mds.xyz
> 
> Apparetly the @ symbol is throwing things off.   Perhaps the Mac is 
> interpreting joe at mds.xyz to mean user 'joe' at host 'mds.xyz', splits 
> them up then fails to login?
> 
> What could be the issue here?
> 
> 


-- 
Thx,
TK.