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Eleuterio Contracampo

2017-Apr-21 14:39 UTC

[Samba] Fwd: Unable to change passwords from Win XP Pro clients

Hello everyone,

First time with Samba 4.
I've got it running mostly (with Windows 7 clients, everything works like a
charm.), but I-m struggling with an issue that is driving me nuts (spent
countless hours trying out stuff and googleing without luck):

When users log in from Win XP Pro terminals, and are forced to change
initially assigned passwords, they get an error (1728: error in RCP
protocol) and cannot continue.

If as an administrator, I force a given password, accounts work without a
problem.

**Some background about my setup:*
PDC: SERV5N
BDC: SERV6N

root at serv5n:/var/log/samba# samba --version

Version 4.3.11-Ubuntu

root at serv5n:/var/log/samba# uname -a

Linux serv5n.mydomain.org.ar 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31
14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

root at serv5n:/var/log/samba# wbinfo -t

checking the trust secret for domain MYDOMAIN via RPC calls succeeded

root at serv6n:/var/log/samba# samba-tool ldapcmp ldap://SERV5N ldap://SERV6N
-Uadministrator --filter=WhenChanged

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

GENSEC backend 'krb5' registered

GENSEC backend 'fake_gssapi_krb5' registered

Password for [MYDOMAIN\administrator]:

* Comparing [DOMAIN] context...

* Objects to be compared: 571

* Result for [DOMAIN]: SUCCESS

* Comparing [CONFIGURATION] context...

* Objects to be compared: 1616

* Result for [CONFIGURATION]: SUCCESS

* Comparing [SCHEMA] context...

* Objects to be compared: 1550

* Result for [SCHEMA]: SUCCESS

* Comparing [DNSDOMAIN] context...

* Objects to be compared: 50

* Result for [DNSDOMAIN]: SUCCESS

* Comparing [DNSFOREST] context...

* Objects to be compared: 18

* Result for [DNSFOREST]: SUCCESS


**My smb.conf (PDC):*

# Global parameters

[global]

workgroup = MYDOMAIN

realm = MYDOMAIN.ORG.AR

netbios name = SERV5N

server role = active directory domain controller

wins support = yes

dns forwarder = 8.8.8.8

allow dns updates = nonsecure

idmap_ldb:use rfc2307 = yes

security = user

map to guest = bad user

guest account = nobody

tls enabled = yes

tls keyfile = /etc/samba/tls/PDC_key.pem

tls certfile = /etc/samba/tls/PDC_cert.pem

tls cafile 
log level = 3

server string = %h Server (Samba, Linux)

os level = 65

domain logons = yes

preferred master = yes

domain master = yes

local master = yes

name resolve order = host wins lmhosts bcast

remote announce = 192.168.40.255

remote browse sync = 192.168.40.255

passdb backend = ldapsam:"ldap://127.0.0.1 ldap://192.168.40.213"

ldap suffix = dc=MYDOMAIN,dc=org,dc=ar

ldap user suffix = ou=users

ldap machine suffix = ou=machines

ldap group suffix = ou=groups

ldap admin dn = cn=admin,dc=MYDOMAIN,dc=org,dc=ar

ldap delete dn = no

acl:search = false

kerberos method = secrets only

vfs objects = fileid acl_xattr

map acl inherit = yes

store dos attributes = yes

ldap passwd sync = yes

ldap server require strong auth = no

# printing

printing = cups

printcap name = cups

printcap cache time = 750

cups options = raw


# added for printing performance

rpc_server:spoolss = external

rpc_daemon:spoolssd = fork

spoolssd:prefork_min_children = 5 # Minimum number of child processes

spoolssd:prefork_max_children = 25 # Maximum number of child processes

spoolssd:prefork_spawn_rate = 5

spoolssd:prefork_max_allowed_clients = 100

spoolssd:prefork_child_min_life = 60


[netlogon]

path = /var/lib/samba/sysvol/MYDOMAIN.org.ar/scripts

read only = No

browsable = No


[sysvol]

path = /var/lib/samba/sysvol

read only = No

acl_xattr:ignore system acls = yes


[profiles]

path = /srv/samba/profiles

writable = yes

browsable = no

guest ok = no

create mask = 0600

directory mask = 0700


[grupos]

path = /srv/samba/groups

read only = No


[printers]

comment = All Printers

browseable = yes

path = /var/spool/samba

printable = yes

writable = no

guest ok = no

read only = yes

create mode = 0700

write list = @adm root


# printer drivers

[print$]

comment = Printer Drivers

path = /var/lib/samba/printers

browseable = yes

read only = yes

guest ok = no


*Finally, some lines from log.samba:*

root at serv5n:/var/log/samba# tail -f log.samba

[2017/04/21 10:46:05.255993, 3] ../source4/rpc_server/drsuapi/
getncchanges.c:2008(dcesrv_drsuapi_DsGetNCChanges)

UpdateRefs on getncchanges for 375d3482-b7f4-49ae-839b-2ca6a2be9698

[2017/04/21 10:46:05.256822, 2] ../source4/rpc_server/drsuapi/
getncchanges.c:2115(dcesrv_drsuapi_DsGetNCChanges)

DsGetNCChanges with uSNChanged >= 3690 flags 0x00000074 on
<GUID=aee82ef2-3986-40f4-b177-9107b71151d5>;CN=Schema,CNConfiguration,DC=mydomain,DC=org,DC=ar
gave 0 objects (done 0/0) 0 links
(done 0/0 (as S-1-5-21-1965676298-842383976-2353361141-1105))

[2017/04/21 10:46:05.554761, 2] ../source4/rpc_server/drsuapi/
getncchanges.c:1428(getncchanges_collect_objects)

../source4/rpc_server/drsuapi/getncchanges.c:1428: getncchanges on
CN=Configuration,DC=mydomain,DC=org,DC=ar using filter (uSNChanged>=4145)

[2017/04/21 10:46:05.614599, 3] ../source4/rpc_server/drsuapi/
getncchanges.c:2008(dcesrv_drsuapi_DsGetNCChanges)

UpdateRefs on getncchanges for 375d3482-b7f4-49ae-839b-2ca6a2be9698

[2017/04/21 10:46:05.615409, 2] ../source4/rpc_server/drsuapi/
getncchanges.c:2115(dcesrv_drsuapi_DsGetNCChanges)

DsGetNCChanges with uSNChanged >= 4145 flags 0x00000074 on
<GUID=5b78c03c-b01f-4e3d-b60c-6043859d22ad>;CN=Configuration,DC=mydomain,DC=org,DC=ar
gave 0 objects (done 0/0) 0 links (done 0/0 (as
S-1-5-21-1965676298-842383976-2353361141-1105))

[2017/04/21 10:46:05.796273, 2] ../source4/rpc_server/drsuapi/
getncchanges.c:1428(getncchanges_collect_objects)

../source4/rpc_server/drsuapi/getncchanges.c:1428: getncchanges on
DC=mydomain,DC=org,DC=ar using filter (uSNChanged>=7410)

[2017/04/21 10:46:05.836114, 3] ../source4/rpc_server/drsuapi/
getncchanges.c:2008(dcesrv_drsuapi_DsGetNCChanges)

UpdateRefs on getncchanges for 375d3482-b7f4-49ae-839b-2ca6a2be9698

[2017/04/21 10:46:05.836971, 2] ../source4/rpc_server/drsuapi/
getncchanges.c:2115(dcesrv_drsuapi_DsGetNCChanges)

DsGetNCChanges with uSNChanged >= 7410 flags 0x00000074 on
<GUID=17a35154-99b3-44c6-8829-a5db4acf402c>;<SID=S-1-5-21-
1965676298-842383976-2353361141>;DC=mydomain,DC=org,DC=ar gave 0 objects
(done 0/0) 0 links (done 0/0 (as S-1-5-21-1965676298-842383976-
2353361141-1105))

[2017/04/21 10:46:08.819667, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ.org.ar', forwarding

[2017/04/21 10:46:08.857099, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:08.887511, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:08.915863, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:08.922533, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:08.952902, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:08.981669, 3] ../source4/libcli/resolve/dns_
ex.c:492(pipe_handler)

dns child failed to find name 'HOSTXYZ' of type A

[2017/04/21 10:46:08.989338, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:08.995976, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:09.026943, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:09.033926, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:09.040783, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'HOSTXYZ', forwarding

[2017/04/21 10:46:15.942031, 3] ../source4/auth/kerberos/krb5_
init_context.c:80(smb_krb5_debug_wrapper)

Kerberos: AS-REQ user1 at mydomain from ipv4:192.168.44.56:1382 for
krbtgt/mydomain at mydomain

[2017/04/21 10:46:15.945779, 3] ../source4/auth/kerberos/krb5_
init_context.c:80(smb_krb5_debug_wrapper)

Kerberos: Client sent patypes: encrypted-timestamp, 128

[2017/04/21 10:46:15.945817, 3] ../source4/auth/kerberos/krb5_
init_context.c:80(smb_krb5_debug_wrapper)

Kerberos: Looking for PKINIT pa-data -- user1 at mydomain

[2017/04/21 10:46:15.945836, 3] ../source4/auth/kerberos/krb5_
init_context.c:80(smb_krb5_debug_wrapper)

Kerberos: Looking for ENC-TS pa-data -- user1 at mydomain

[2017/04/21 10:46:15.945919, 3] ../source4/auth/kerberos/krb5_
init_context.c:80(smb_krb5_debug_wrapper)

Kerberos: ENC-TS Pre-authentication succeeded -- user1 at mydomain using
arcfour-hmac-md5

[2017/04/21 10:46:15.945953, 2] ../source4/auth/sam.c:218(
authsam_account_ok)

sam_account_ok: Account for user 'user1 at mydomain' password must
change!.

[2017/04/21 10:46:22.681717, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.688894, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.695961, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.702968, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.709922, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.718366, 3] ../source4/libcli/resolve/dns_
ex.c:492(pipe_handler)

dns child failed to find name 'PROGRAM' of type A

[2017/04/21 10:46:22.724544, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.752076, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.759247, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.766084, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:22.773333, 2] ../source4/dns_server/dns_
query.c:626(dns_server_process_query_send)

Not authoritative for 'PROGRAM', forwarding

[2017/04/21 10:46:27.510607, 3] ../lib/ldb-samba/ldb_wrap.c:
321(ldb_wrap_connect)

ldb_wrap open of secrets.ldb

[2017/04/21 10:46:27.510985, 3] ../auth/ntlmssp/ntlmssp_util.
c:69(debug_ntlmssp_flags)

Got NTLMSSP neg_flags=0xe208b2b7

[2017/04/21 10:46:27.515204, 3] ../auth/ntlmssp/ntlmssp_
server.c:452(ntlmssp_server_preauth)

Got user=[] domain=[] workstation=[HOSTYYY] len1=1 len2=0

[2017/04/21 10:46:27.515253, 3] ../source4/auth/ntlm/auth.c:
270(auth_check_password_send)

auth_check_password_send: Checking password for unmapped user
[]\[]@[HOSTYYY]

auth_check_password_send: mapped user is: [mydomain]\[]@[HOSTYYY]

[2017/04/21 10:46:27.515312, 0] ../auth/gensec/gensec.c:257(
gensec_verify_dcerpc_auth_level)

Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6

[2017/04/21 10:46:27.518367, 3] ../source4/smbd/service_
stream.c:66(stream_terminate_connection)

Terminating connection - 'dcesrv: dcesrv_fault_disconnect'

[2017/04/21 10:46:27.518413, 3] ../source4/smbd/process_
single.c:114(single_terminate)

single_terminate: reason[dcesrv: dcesrv_fault_disconnect]

[2017/04/21 10:46:27.578922, 3] ../lib/ldb-samba/ldb_wrap.c:
321(ldb_wrap_connect)

ldb_wrap open of secrets.ldb

[2017/04/21 10:46:27.579290, 3] ../auth/ntlmssp/ntlmssp_util.
c:69(debug_ntlmssp_flags)

Got NTLMSSP neg_flags=0xe208b2b7

[2017/04/21 10:46:27.584524, 3] ../auth/ntlmssp/ntlmssp_
server.c:452(ntlmssp_server_preauth)

Got user=[] domain=[] workstation=[HOSTYYY] len1=1 len2=0

[2017/04/21 10:46:27.584571, 3] ../source4/auth/ntlm/auth.c:
270(auth_check_password_send)

auth_check_password_send: Checking password for unmapped user
[]\[]@[HOSTYYY]

auth_check_password_send: mapped user is: [mydomain]\[]@[HOSTYYY]

[2017/04/21 10:46:27.584621, 0] ../auth/gensec/gensec.c:257(
gensec_verify_dcerpc_auth_level)

Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6

[2017/04/21 10:46:27.588475, 3] ../source4/smbd/service_
stream.c:66(stream_terminate_connection)

Terminating connection - 'dcesrv: dcesrv_fault_disconnect'

[2017/04/21 10:46:27.588518, 3] ../source4/smbd/process_
single.c:114(single_terminate)

single_terminate: reason[dcesrv: dcesrv_fault_disconnect]

[2017/04/21 10:46:27.658991, 3] ../lib/ldb-samba/ldb_wrap.c:
321(ldb_wrap_connect)

ldb_wrap open of secrets.ldb

[2017/04/21 10:46:27.659355, 3] ../auth/ntlmssp/ntlmssp_util.
c:69(debug_ntlmssp_flags)

Got NTLMSSP neg_flags=0xe208b2b7

[2017/04/21 10:46:27.664123, 3] ../auth/ntlmssp/ntlmssp_
server.c:452(ntlmssp_server_preauth)

Got user=[] domain=[] workstation=[HOSTYYY] len1=1 len2=0

[2017/04/21 10:46:27.664174, 3] ../source4/auth/ntlm/auth.c:
270(auth_check_password_send)

auth_check_password_send: Checking password for unmapped user
[]\[]@[HOSTYYY]

auth_check_password_send: mapped user is: [mydomain]\[]@[HOSTYYY]

[2017/04/21 10:46:27.664229, 0] ../auth/gensec/gensec.c:257(
gensec_verify_dcerpc_auth_level)

Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6

[2017/04/21 10:46:27.667372, 3] ../source4/smbd/service_
stream.c:66(stream_terminate_connection)

Terminating connection - 'dcesrv: dcesrv_fault_disconnect'

[2017/04/21 10:46:27.667415, 3] ../source4/smbd/process_
single.c:114(single_terminate)

single_terminate: reason[dcesrv: dcesrv_fault_disconnect]

[2017/04/21 10:46:27.758583, 3] ../lib/ldb-samba/ldb_wrap.c:
321(ldb_wrap_connect)

ldb_wrap open of secrets.ldb

[2017/04/21 10:46:27.758980, 3] ../auth/ntlmssp/ntlmssp_util.
c:69(debug_ntlmssp_flags)

Got NTLMSSP neg_flags=0xe208b2b7

[2017/04/21 10:46:27.763160, 3] ../auth/ntlmssp/ntlmssp_
server.c:452(ntlmssp_server_preauth)

Got user=[] domain=[] workstation=[HOSTYYY] len1=1 len2=0

[2017/04/21 10:46:27.763211, 3] ../source4/auth/ntlm/auth.c:
270(auth_check_password_send)

auth_check_password_send: Checking password for unmapped user
[]\[]@[HOSTYYY]

auth_check_password_send: mapped user is: [mydomain]\[]@[HOSTYYY]

[2017/04/21 10:46:27.763265, 0] ../auth/gensec/gensec.c:257(
gensec_verify_dcerpc_auth_level)

Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6

[2017/04/21 10:46:27.766642, 3] ../source4/smbd/service_
stream.c:66(stream_terminate_connection)

Terminating connection - 'dcesrv: dcesrv_fault_disconnect'

[2017/04/21 10:46:27.766693, 3] ../source4/smbd/process_
single.c:114(single_terminate)

single_terminate: reason[dcesrv: dcesrv_fault_disconnect]


Cannot figure out what is going on. Any hint would be most appreciated!!

Thanks in advance,

EC

Rowland Penny

2017-Apr-21 15:30 UTC

head link

[Samba] Fwd: Unable to change passwords from Win XP Pro clients

On Fri, 21 Apr 2017 10:39:58 -0400
Eleuterio Contracampo via samba <samba at lists.samba.org> wrote:
> Hello everyone,
> 
> First time with Samba 4.
> I've got it running mostly (with Windows 7 clients, everything works
> like a charm.), but I-m struggling with an issue that is driving me
> nuts (spent countless hours trying out stuff and googleing without
> luck):
> 
> When users log in from Win XP Pro terminals, and are forced to change
> initially assigned passwords, they get an error (1728: error in RCP
> protocol) and cannot continue.
> 
> **Some background about my setup:*
> PDC: SERV5N
> BDC: SERV6N
You do not have a 'PDC' & 'BDC', you have two AD DCs

> **My smb.conf (PDC):*
> 
> # Global parameters
> 
> [global]
Remove this lot from smb.conf:

    wins support = yes 
    security = user 
    os level = 65 
    domain logons = yes
    preferred master = yes
    domain master = yes
    local master = yes
    name resolve order = host wins lmhosts bcast
    remote announce = 192.168.40.255
    remote browse sync = 192.168.40.255
    passdb backend = ldapsam:"ldap://127.0.0.1 ldap://192.168.40.213"
    ldap suffix = dc=MYDOMAIN,dc=org,dc=ar
    ldap user suffix = ou=users
    ldap machine suffix = ou=machines
    ldap group suffix = ou=groups
    ldap admin dn = cn=admin,dc=MYDOMAIN,dc=org,dc=ar
    ldap delete dn = no
    acl:search = false
    kerberos method = secrets only
    vfs objects = fileid acl_xattr
    map acl inherit = yes
    store dos attributes = yes
    ldap passwd sync = yes

They are either default settings or have absolutely no place in an AD
DC smb.conf. The 'ldap' lines should only be used on a ldap based Samba
machine, not an AD DC, 'acl_xattr' is built into the samba binary.
Finally 'ldap passwd sync' only makes sense when you want the local
users passwords to sync with the users in ldap, only problem is, you
cannot have a local user with the same name as an AD user.

Rowland

Eleuterio Contracampo

2017-Apr-21 15:57 UTC

head link

[Samba] Fwd: Unable to change passwords from Win XP Pro clients

Thank you Rowland!!

Sorry about my ignorance. I guess I tried many different things and
polluted the smb.conf file.

I've removed every single line  you mentioned off my smb.conf. Still the
problem persists:

MYDOMAIN\Administrator (S-1-5-21-1965676298-842383976-2353361141-500) is
changing password of user2 at MYDOMAIN.org.ar

[2017/04/21 12:05:42.233899, 3]
../source4/smbd/service_stream.c:66(stream_terminate_connection)

Terminating connection - 'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED'

[2017/04/21 12:05:42.233940, 3]
../source4/smbd/process_single.c:114(single_terminate)

single_terminate: reason[kdc_tcp_call_loop: tstream_read_pdu_blob_recv() -
NT_STATUS_CONNECTION_DISCONNECTED]

[2017/04/21 12:05:45.687345, 2]
../source4/dsdb/repl/drepl_notify.c:199(dreplsrv_notify_op_callback)

dreplsrv_notify: DsReplicaSync successfuly sent to
375d3482-b7f4-49ae-839b-2ca6a2be9698._msdcs.MYDOMAIN.org.ar

[2017/04/21 12:05:46.691655, 2]
../source4/rpc_server/drsuapi/getncchanges.c:1428(getncchanges_collect_objects)

../source4/rpc_server/drsuapi/getncchanges.c:1428: getncchanges on
DC=MYDOMAIN,DC=org,DC=ar using filter (uSNChanged>=7425)

[2017/04/21 12:05:46.733142, 3]
../source4/rpc_server/drsuapi/getncchanges.c:2008(dcesrv_drsuapi_DsGetNCChanges)

UpdateRefs on getncchanges for 375d3482-b7f4-49ae-839b-2ca6a2be9698

[2017/04/21 12:05:46.734033, 2]
../source4/rpc_server/drsuapi/getncchanges.c:2115(dcesrv_drsuapi_DsGetNCChanges)

DsGetNCChanges with uSNChanged >= 7425 flags 0x00000074 on
<GUID=17a35154-99b3-44c6-8829-a5db4acf402c>;<SID=S-1-5-21-1965676298-842383976-2353361141>;DC=MYDOMAIN,DC=org,DC=ar


gave 1 objects (done 1/1) 0 links (done 0/0 (as
S-1-5-21-1965676298-842383976-2353361141-1105))


Same behavior: win7 clients work, win XP clients don't. Anything else I
should try?

thanks again,

EC

On Fri, Apr 21, 2017 at 11:30 AM, Rowland Penny via samba <
samba at lists.samba.org> wrote:
> On Fri, 21 Apr 2017 10:39:58 -0400
> Eleuterio Contracampo via samba <samba at lists.samba.org> wrote:
>
> > Hello everyone,
> >
> > First time with Samba 4.
> > I've got it running mostly (with Windows 7 clients, everything
works
> > like a charm.), but I-m struggling with an issue that is driving me
> > nuts (spent countless hours trying out stuff and googleing without
> > luck):
> >
> > When users log in from Win XP Pro terminals, and are forced to change
> > initially assigned passwords, they get an error (1728: error in RCP
> > protocol) and cannot continue.
> >
> > **Some background about my setup:*
> > PDC: SERV5N
> > BDC: SERV6N
>
> You do not have a 'PDC' & 'BDC', you have two AD DCs
>
>
> > **My smb.conf (PDC):*
> >
> > # Global parameters
> >
> > [global]
>
> Remove this lot from smb.conf:
>
>     wins support = yes
>     security = user
>     os level = 65
>     domain logons = yes
>     preferred master = yes
>     domain master = yes
>     local master = yes
>     name resolve order = host wins lmhosts bcast
>     remote announce = 192.168.40.255
>     remote browse sync = 192.168.40.255
>     passdb backend = ldapsam:"ldap://127.0.0.1
ldap://192.168.40.213"
>     ldap suffix = dc=MYDOMAIN,dc=org,dc=ar
>     ldap user suffix = ou=users
>     ldap machine suffix = ou=machines
>     ldap group suffix = ou=groups
>     ldap admin dn = cn=admin,dc=MYDOMAIN,dc=org,dc=ar
>     ldap delete dn = no
>     acl:search = false
>     kerberos method = secrets only
>     vfs objects = fileid acl_xattr
>     map acl inherit = yes
>     store dos attributes = yes
>     ldap passwd sync = yes
>
> They are either default settings or have absolutely no place in an AD
> DC smb.conf. The 'ldap' lines should only be used on a ldap based
Samba
> machine, not an AD DC, 'acl_xattr' is built into the samba binary.
> Finally 'ldap passwd sync' only makes sense when you want the local
> users passwords to sync with the users in ldap, only problem is, you
> cannot have a local user with the same name as an AD user.
>
> Rowland
>
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