[Samba] Samba v3 works with LDAP, but not Samba v4
Emil Henry
hbcsc153 at gmail.com
Tue Oct 16 19:13:16 UTC 2018
Hello!
We have Samba v3 (3.5.10) working against an LDAP server, and need to
upgrade to Samba v4 (4.7.1), RHEL 7 supports only v4. Tried multiple
configs of the smb.conf (including the old config) without success. Cleaned
up smb.conf is below. Also, included is the output of a smbclient command
on the SMBServer with debug option 10. Hoping that someone can point me in
the right direction.
Thanks
[global]
security = user
ldap user suffix = ou=people
ldap group suffix = ou=groups
ldap ssl = off
ldap passwd sync = yes
ldap delete dn = no
workgroup = WORKGROUP
server string = "Samba Drives"
netbios name = SMBServer
log file = /var/log/samba/log.%m
# For debugging enable the log level of 5
log level = 5
max log size = 50
# LDAP Settings
ldap suffix = "o=EXAMPLE"
ldap admin dn = "cn=PUSer,ou=Proxies,ou=Auth,o=EXAMPLE"
passdb backend = ldapsam:ldap://ldapserver.example.com
[homes]
valid users = %S
read only = No
writeable = yes
browseable = no
create mask = 0600
public = No
comment = %u's Z-Drive
nt acl support = no
inherit permissions = no
hide dot files = yes
directory mask = 0700
force create mode = 0700
valid users = MYDOMAIN\%S
--------------------------------------------------------------------------------------------------
[root at SMBServer samba]# smbclient //localhost/share -U johndoe -d 10
INFO: Current debug levels:
all: 10
tdb: 10
printdrivers: 10
lanman: 10
smb: 10
rpc_parse: 10
rpc_srv: 10
rpc_cli: 10
passdb: 10
sam: 10
auth: 10
winbind: 10
vfs: 10
idmap: 10
quota: 10
acls: 10
locking: 10
msdfs: 10
dmapi: 10
registry: 10
scavenger: 10
dns: 10
ldb: 10
tevent: 10
auth_audit: 10
auth_json_audit: 10
kerberos: 10
drs_repl: 10
lp_load_ex: refreshing parameters
Initialising global parameters
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
INFO: Current debug levels:
all: 10
tdb: 10
printdrivers: 10
lanman: 10
smb: 10
rpc_parse: 10
rpc_srv: 10
rpc_cli: 10
passdb: 10
sam: 10
auth: 10
winbind: 10
vfs: 10
idmap: 10
quota: 10
acls: 10
locking: 10
msdfs: 10
dmapi: 10
registry: 10
scavenger: 10
dns: 10
ldb: 10
tevent: 10
auth_audit: 10
auth_json_audit: 10
kerberos: 10
drs_repl: 10
Processing section "[global]"
doing parameter security = user
doing parameter ldap user suffix = ou=people
doing parameter ldap group suffix = ou=groups
doing parameter ldap ssl = off
doing parameter ldap passwd sync = yes
doing parameter ldap delete dn = no
doing parameter workgroup = WORKGROUP
doing parameter server string = "A Drives"
doing parameter netbios name = SMBServer
doing parameter log file = /var/log/samba/log.%m
doing parameter log level = 5
doing parameter max log size = 50
doing parameter ldap suffix = "o=EXAMPLE"
doing parameter ldap admin dn = "cn=cecs,ou=Proxies,ou=Auth,o=EXAMPLE"
doing parameter passdb backend = ldapsam:ldap://ldapserver.example.com
pm_process() returned Yes
lp_servicenumber: couldn't find homes
added interface enp7s0f1 ip=192.168.2.192 bcast=192.168.2.255
netmask=255.255.255.0
added interface virbr0 ip=192.168.122.1 bcast=192.168.122.255
netmask=255.255.255.0
Netbios name list:-
my_netbios_names[0]="SMBServer"
Client started (version 4.7.1).
Opening cache file at /var/lib/samba/gencache.tdb
Opening cache file at /var/lib/samba/lock/gencache_notrans.tdb
Adding cache entry with key=[AD_SITENAME/DOMAIN/] and timeout=[Wed Dec 31
04:00:00 PM 1969 PST] (-1539716622 seconds in the past)
sitename_fetch: No stored sitename for realm ''
internal_resolve_name: looking up localhost#20 (sitename (null))
name localhost#20 found.
remove_duplicate_addrs2: looking for duplicate address/port pairs
Connecting to 127.0.0.1 at port 445
Socket options:
SO_KEEPALIVE = 0
SO_REUSEADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 2626560
SO_RCVBUF = 1061296
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
negotiated dialect[SMB3_11] against server[localhost]
got OID=1.3.6.1.4.1.311.2.2.10
Enter EXAMPLE.COM\johndoe's password:
GENSEC backend 'gssapi_spnego' registered
GENSEC backend 'gssapi_krb5' registered
GENSEC backend 'gssapi_krb5_sasl' registered
GENSEC backend 'spnego' registered
GENSEC backend 'schannel' registered
GENSEC backend 'naclrpc_as_system' registered
GENSEC backend 'sasl-EXTERNAL' registered
GENSEC backend 'ntlmssp' registered
GENSEC backend 'ntlmssp_resume_ccache' registered
GENSEC backend 'http_basic' registered
GENSEC backend 'http_ntlm' registered
Starting GENSEC mechanism spnego
Starting GENSEC submechanism ntlmssp
negotiate: struct NEGOTIATE_MESSAGE
Signature : 'NTLMSSP'
MessageType : NtLmNegotiate (1)
NegotiateFlags : 0x62088215 (1644724757)
1: NTLMSSP_NEGOTIATE_UNICODE
0: NTLMSSP_NEGOTIATE_OEM
1: NTLMSSP_REQUEST_TARGET
1: NTLMSSP_NEGOTIATE_SIGN
0: NTLMSSP_NEGOTIATE_SEAL
0: NTLMSSP_NEGOTIATE_DATAGRAM
0: NTLMSSP_NEGOTIATE_LM_KEY
0: NTLMSSP_NEGOTIATE_NETWARE
1: NTLMSSP_NEGOTIATE_NTLM
0: NTLMSSP_NEGOTIATE_NT_ONLY
0: NTLMSSP_ANONYMOUS
0: NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED
0: NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED
0: NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL
1: NTLMSSP_NEGOTIATE_ALWAYS_SIGN
0: NTLMSSP_TARGET_TYPE_DOMAIN
0: NTLMSSP_TARGET_TYPE_SERVER
0: NTLMSSP_TARGET_TYPE_SHARE
1: NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY
0: NTLMSSP_NEGOTIATE_IDENTIFY
0: NTLMSSP_REQUEST_NON_NT_SESSION_KEY
0: NTLMSSP_NEGOTIATE_TARGET_INFO
1: NTLMSSP_NEGOTIATE_VERSION
1: NTLMSSP_NEGOTIATE_128
1: NTLMSSP_NEGOTIATE_KEY_EXCH
0: NTLMSSP_NEGOTIATE_56
DomainNameLen : 0x0000 (0)
DomainNameMaxLen : 0x0000 (0)
DomainName : *
DomainName : ''
WorkstationLen : 0x0000 (0)
WorkstationMaxLen : 0x0000 (0)
Workstation : *
Workstation : ''
Version: struct ntlmssp_VERSION
ProductMajorVersion : NTLMSSP_WINDOWS_MAJOR_VERSION_6 (6)
ProductMinorVersion : NTLMSSP_WINDOWS_MINOR_VERSION_1 (1)
ProductBuild : 0x0000 (0)
Reserved: ARRAY(3)
[0] : 0x00 (0)
[1] : 0x00 (0)
[2] : 0x00 (0)
NTLMRevisionCurrent : NTLMSSP_REVISION_W2K3 (15)
Got challenge flags:
Got NTLMSSP neg_flags=0x628a8215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
NTLMSSP_TARGET_TYPE_SERVER
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY
NTLMSSP_NEGOTIATE_TARGET_INFO
NTLMSSP_NEGOTIATE_VERSION
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
short string '', sent with NULL termination despite NOTERM flag in IDL
NTLMSSP: Set final flags:
Got NTLMSSP neg_flags=0x62088215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY
NTLMSSP_NEGOTIATE_VERSION
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
NTLMSSP Sign/Seal - Initialising with flags:
Got NTLMSSP neg_flags=0x62088215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY
NTLMSSP_NEGOTIATE_VERSION
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
SPNEGO login failed: The attempted logon is invalid. This is either due to
a bad username or authentication information.
session setup failed: NT_STATUS_LOGON_FAILURE
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