[Samba] samba loses to be the master browser
Fernando Torrez
fernando_torrez at hotmail.com
Tue Apr 26 14:52:30 MDT 2011
Hi all
I have an Opensuse 11.1 64 bit acting as a PDC with all this pachages:
samba-3.4.5-3.1
bind-9.5.0P2-18.1
dhcp-server-3.1.1-6.3
openldap2-2.4.12-5.3
It was working great for the first 6 months as a logon and file server for around 40 windows computers. But lately from time to time the samba server loses to be the master browser, and the only way to solve this problem is rebooting de entire linux
At the beginning this problem appeared once every month, but from february-2011 it began to appear once every week.
When samba is working normally I do the following command in linux PDC console:
bago:/var/log/samba # smbclient -L bago -N
Anonymous login successful
Domain=[BAGOLIN] OS=[Unix] Server=[Samba 3.4.5-3.1-2289-SUSE-CODE11]
Sharename Type Comment
--------- ---- -------
InetPub Disk Documentos Web
Cont Disk Contabilidad
RegLPZ Disk Sistema Facturacion Regional LPZ
... other shares
Soft Disk Software de Instalacion Bago
Soft2 Disk Software de Instalacion Bago
print$ Disk Printer Drivers
IPC$ IPC IPC Service (bago)
Anonymous login successful
Domain=[BAGOLIN] OS=[Unix] Server=[Samba 3.4.5-3.1-2289-SUSE-CODE11]
Server Comment
--------- -------
ALBERTO Alberto Viladegut
ALEX Alex Chacon
ALMACEN Almacen Sopocachi
... other 30 lan computers
TERESA Teresa Espinoza
WILFREDO Wilfredo Romero
Workgroup Master
--------- -------
BAGOLIN BAGO
It shows BAGO as master browser (espected data). But when samba loses to be the master browser I do the same console command and shows de following:
bago:/var/log/samba # smbclient -L bago -N
Anonymous login successful
Domain=[BAGOLIN] OS=[Unix] Server=[Samba 3.4.5-3.1-2289-SUSE-CODE11]
Sharename Type Comment
--------- ---- -------
IPC$ IPC IPC Service (bago)
print$ Disk Printer Drivers
Soft2 Disk Software de Instalacion Bago
Soft Disk Software de Instalacion Bago
... other usual shares
Cont Disk Contabilidad
sys Disk Sistema DET Bago
InetPub Disk Documentos Web
Anonymous login successful
Domain=[BAGOLIN] OS=[Unix] Server=[Samba 3.4.5-3.1-2289-SUSE-CODE11]
Server Comment
--------- -------
BAGO bago
RENE Rene Lazarte
Workgroup Master
--------- -------
BAGOLIN RENE
As it can be seen, A windows 7 or vista takes the master browser job, samba's browse.dat file shows exactly the same two clients and on windows clients when browsing the lan it only shows 2 or 3 computers, but I can access the 'hidden' windows computers from others just with \\computername format. Everything else seems to work fine.
and the nmb logs showed the following
*****
Samba name server BAGO is now a local master browser for workgroup BAGOLIN on subnet 192.168.0.14
*****
[2011/02/23 10:09:12, 0] nmbd/nmbd_become_lmb.c:395(become_local_master_stage2)
*****
Samba name server BAGO is now a local master browser for workgroup BAGOLIN on subnet 127.0.0.2
*****
[2011/02/23 11:08:17, 0] libsmb/nmblib.c:834(send_udp)
Packet send failed to 192.168.0.236(138) ERRNO=Operation not permitted
[2011/02/23 12:03:25, 0] libsmb/nmblib.c:834(send_udp)
Packet send failed to 192.168.0.155(138) ERRNO=Operation not permitted
[2011/02/23 12:14:34, 0] libsmb/nmblib.c:834(send_udp)
Packet send failed to 192.168.0.142(138) ERRNO=Operation not permitted
[2011/02/23 13:21:26, 0] libsmb/nmblib.c:834(send_udp)
Packet send failed to 192.168.0.171(138) ERRNO=Operation not permitted
[2011/02/23 14:33:20, 0] nmbd/nmbd_incomingdgrams.c:308(process_local_master_announce)
process_local_master_announce: Server PAOLA at IP 192.168.0.140 is announcing itself as a local master browser for workgroup BAGOLIN and we think we are master. Forcing election.
[2011/02/23 14:33:20, 0] nmbd/nmbd_become_lmb.c:148(unbecome_local_master_success)
*****
Samba name server BAGO has stopped being a local master browser for workgroup BAGOLIN on subnet 192.168.0.14
*****
[2011/02/23 14:33:35, 0] nmbd/nmbd_become_lmb.c:416(become_local_master_fail2)
become_local_master_fail2: failed to register name BAGOLIN<1d> on subnet 192.168.0.14. Failed to become a local master browser.
[2011/02/23 14:33:35, 0] nmbd/nmbd_namelistdb.c:307(standard_fail_register)
standard_fail_register: Failed to register/refresh name BAGOLIN<1d> on subnet 192.168.0.14
[2011/02/23 14:33:56, 0] libsmb/nmblib.c:834(send_udp)
Packet send failed to 192.168.0.255(137) ERRNO=Invalid argument
[2011/02/23 14:33:56, 0] nmbd/nmbd_packets.c:158(send_netbios_packet)
send_netbios_packet: send_packet() to IP 192.168.0.255 port 137 failed
[2011/02/23 14:33:56, 0] nmbd/nmbd_namequery.c:244(query_name)
query_name: Failed to send packet trying to query name BAGOLIN<1d>
[2011/02/23 14:38:58, 0] libsmb/nmblib.c:834(send_udp)
Packet send failed to 192.168.0.255(137) ERRNO=Invalid argument
[2011/02/23 14:38:58, 0] nmbd/nmbd_packets.c:158(send_netbios_packet)
Googling I found that microsoft windows 7 systems have os level equal to 70, but my samba configuration had 'log level=65' , so I changed it to 'log level=100', but it didn't solve the problem and nmb log didn't show 'Samba name server BAGO has stopped being a local master browser for workgroup BAGOLIN on subnet 192.168.0.14' anymore.
I changed two parameters in my smb.conf
log level = 3 (to have more log information)
os level = 255 (to make my linux samba server the only one master browser)
this configuration worked this last 2 months, and the problem appear again. A checked samba logs and found nothing except in the log.wb-BAGOLIN file a line says: RPC fault code DCERPC_FAULT_OP_RNG_ERROR received from host BAGO!
[2011/04/26 14:35:49, 3] libsmb/ntlmssp.c:62(debug_ntlmssp_flags)
Got NTLMSSP neg_flags=0x60088215
[2011/04/26 14:35:49, 3] libsmb/ntlmssp_sign.c:342(ntlmssp_sign_init)
NTLMSSP Sign/Seal - Initialising with flags:
[2011/04/26 14:35:49, 3] libsmb/ntlmssp.c:62(debug_ntlmssp_flags)
Got NTLMSSP neg_flags=0x60088215
[2011/04/26 14:35:49, 1] rpc_client/cli_pipe.c:949(cli_pipe_validate_current_pdu)
cli_pipe_validate_current_pdu: RPC fault code DCERPC_FAULT_OP_RNG_ERROR received from host BAGO!
[2011/04/26 14:35:49, 3] winbindd/winbindd_misc.c:359(winbindd_dual_list_trusted_domains)
[12750]: list trusted domains
[2011/04/26 14:35:49, 2] lib/smbldap_util.c:277(smbldap_search_domain_info)
smbldap_search_domain_info: Searching for:[(&(objectClass=sambaDomain)(sambaDomainName=BAGOLIN))]
[2011/04/26 14:35:49, 2] lib/smbldap.c:856(smbldap_open_connection)
smbldap_open_connection: connection opened
[2011/04/26 14:35:49, 3] lib/smbldap.c:1067(smbldap_connect_system)
ldap_connect_system: successful connection to the LDAP server
[2011/04/26 14:41:06, 3] winbindd/winbindd_misc.c:359(winbindd_dual_list_trusted_domains)
[12750]: list trusted domains
I also noticed that at the begining (a year ago), when I installed samba as PDC server, my LAN had two windows 7 profs, two macs (configured as workgroup systems), and around 35 windows xp systems. But now my LAN have sixteen windows 7 profs and this number will grow up meanwhile windows xp clients will decrease.
Can I say that this problem is because my samba version wasn't designed to support windows vista and 7 systems as domain clients?
Is there any solution to overcome this problem?
Any hint will be really appreciated
below is my smb.conf file and some relevant log pieces as attachments.
Fernando
smb.conf (testparm -s -v)
[global]
dos charset = 850
unix charset = iso-8859-15
display charset = LOCALE
workgroup = BAGOLIN
realm =
netbios name = BAGO
netbios aliases =
netbios scope =
server string = bago
interfaces = eth0, lo
bind interfaces only = Yes
security = USER
auth methods =
encrypt passwords = Yes
update encrypted = No
client schannel = Auto
server schannel = Auto
allow trusted domains = Yes
map to guest = Never
null passwords = No
obey pam restrictions = No
password server = *
smb passwd file = /etc/samba/smbpasswd
private dir = /etc/samba
passdb backend = ldapsam:ldap://bago.bagolin.tld
algorithmic rid base = 1000
root directory =
guest account = nobody
enable privileges = Yes
pam password change = No
passwd program =
passwd chat = *new*password* %n\n *new*password* %n\n *changed*
passwd chat debug = No
passwd chat timeout = 2
check password script =
username map = /etc/samba/smbusers
password level = 0
username level = 0
unix password sync = No
restrict anonymous = 0
lanman auth = No
ntlm auth = Yes
client NTLMv2 auth = No
client lanman auth = No
client plaintext auth = No
preload modules =
dedicated keytab file =
kerberos method = default
map untrusted to domain = No
log level = 3
syslog = 0
syslog only = No
log file = /var/log/samba/%m
max log size = 50
debug timestamp = Yes
debug prefix timestamp = No
debug hires timestamp = No
debug pid = No
debug uid = No
debug class = No
enable core files = Yes
smb ports = 139
large readwrite = Yes
max protocol = NT1
min protocol = CORE
min receivefile size = 0
read raw = Yes
write raw = Yes
disable netbios = No
reset on zero vc = Yes
acl compatibility = auto
defer sharing violations = Yes
nt pipe support = Yes
nt status support = Yes
announce version = 4.9
announce as = NT
max mux = 50
max xmit = 16644
name resolve order = wins bcast hosts
max ttl = 43200
max wins ttl = 518400
min wins ttl = 21600
time server = Yes
unix extensions = No
use spnego = Yes
client signing = auto
server signing = No
client use spnego = Yes
client ldap sasl wrapping = plain
enable asu support = No
svcctl list =
deadtime = 0
getwd cache = Yes
keepalive = 300
lpq cache time = 30
max smbd processes = 0
paranoid server security = Yes
max disk size = 0
max open files = 16384
socket options = IPTOS_LOWDELAY TCP_NODELAY
use mmap = Yes
hostname lookups = No
name cache timeout = 660
ctdbd socket =
cluster addresses =
clustering = No
load printers = Yes
printcap cache time = 750
printcap name = CUPS
cups server =
cups connection timeout = 30
iprint server =
disable spoolss = Yes
addport command =
enumports command =
addprinter command =
deleteprinter command =
show add printer wizard = No
os2 driver map =
mangling method = hash2
mangle prefix = 1
max stat cache size = 256
stat cache = Yes
machine password timeout = 604800
add user script = /usr/sbin/smbldap-useradd -m "%u"
rename user script =
delete user script = /usr/sbin/smbldap-userdel "%u"
add group script = /usr/sbin/smbldap-groupadd -p "%g"
delete group script = /usr/sbin/smbldap-groupdel "%g"
add user to group script = /usr/sbin/smbldap-groupmod -m "%u" "%g"
delete user from group script = /usr/sbin/smbldap-groupmod -x "%u" "%g"
set primary group script = /usr/sbin/smbldap-usermod -g "%g" "%u"
add machine script = /usr/sbin/smbldap-useradd -w "%u"
shutdown script =
abort shutdown script =
username map script =
logon script = logon.bat
logon path =
logon drive = H:
logon home =
domain logons = Yes
init logon delayed hosts =
init logon delay = 100
os level = 255
lm announce = Auto
lm interval = 60
preferred master = Yes
local master = Yes
domain master = Yes
browse list = Yes
enhanced browsing = Yes
dns proxy = Yes
wins proxy = No
wins server =
wins support = Yes
wins hook =
kernel oplocks = Yes
lock spin time = 200
oplock break wait time = 0
ldap admin dn = cn=Manager,dc=bagolin,dc=tld
ldap delete dn = Yes
ldap group suffix = ou=Groups
ldap idmap suffix = ou=Idmap
ldap machine suffix = ou=Computers
ldap passwd sync = no
ldap replication sleep = 1000
ldap suffix = dc=bagolin,dc=tld
ldap ssl = no
ldap ssl ads = No
ldap timeout = 15
ldap connection timeout = 2
ldap page size = 1024
ldap user suffix = ou=Users
ldap debug level = 0
ldap debug threshold = 10
eventlog list =
add share command =
change share command =
delete share command =
preload =
lock directory = /var/lib/samba
state directory = /var/lib/samba
cache directory = /var/lib/samba
pid directory = /var/run/samba
utmp directory =
wtmp directory =
utmp = No
default service =
message command =
get quota command =
set quota command =
remote announce =
remote browse sync =
socket address = 0.0.0.0
homedir map = auto.home
afs username map =
afs token lifetime = 604800
log nt token command =
time offset = 0
NIS homedir = No
registry shares = No
usershare allow guests = No
usershare max shares = 0
usershare owner only = Yes
usershare path = /var/lib/samba/usershares
usershare prefix allow list =
usershare prefix deny list =
usershare template share =
panic action =
perfcount module =
host msdfs = Yes
passdb expand explicit = No
idmap backend = ldap:ldap://bago.bagolin.tld
idmap alloc backend =
idmap cache time = 604800
idmap negative cache time = 120
idmap uid = 10000-20000
idmap gid = 10000-20000
template homedir = /home/%D/%U
template shell = /bin/false
winbind separator = \
winbind cache time = 300
winbind reconnect delay = 30
winbind enum users = Yes
winbind enum groups = Yes
winbind use default domain = No
winbind trusted domains only = No
winbind nested groups = Yes
winbind expand groups = 1
winbind nss info = template
winbind refresh tickets = No
winbind offline logon = No
winbind normalize names = No
winbind rpc only = No
comment =
path =
username =
invalid users =
valid users =
admin users =
read list =
write list =
printer admin =
force user =
force group =
read only = Yes
acl check permissions = Yes
acl group control = No
acl map full control = Yes
create mask = 0744
force create mode = 00
security mask = 0777
force security mode = 00
directory mask = 0755
force directory mode = 00
directory security mask = 0777
force directory security mode = 00
force unknown acl user = No
inherit permissions = No
inherit acls = No
inherit owner = No
guest only = No
administrative share = No
guest ok = No
only user = No
hosts allow =
hosts deny =
allocation roundup size = 1048576
aio read size = 0
aio write size = 0
aio write behind =
ea support = No
nt acl support = Yes
profile acls = No
map acl inherit = Yes
afs share = No
smb encrypt = auto
block size = 1024
change notify = Yes
directory name cache size = 100
kernel change notify = Yes
max connections = 0
min print space = 0
strict allocate = No
strict sync = No
sync always = No
use sendfile = No
write cache size = 0
max reported print jobs = 0
max print jobs = 1000
printable = No
printing = cups
cups options =
print command =
lpq command = %p
lprm command =
lppause command =
lpresume command =
queuepause command =
queueresume command =
printer name =
use client driver = No
default devmode = Yes
force printername = No
printjob username = %U
default case = lower
case sensitive = Auto
preserve case = Yes
short preserve case = Yes
mangling char = ~
hide dot files = Yes
hide special files = No
hide unreadable = No
hide unwriteable files = No
delete veto files = No
veto files =
hide files =
veto oplock files =
map archive = Yes
map hidden = No
map system = No
map readonly = yes
mangled names = Yes
store dos attributes = No
dmapi support = No
browseable = Yes
access based share enum = No
browsable = Yes
blocking locks = Yes
csc policy = manual
fake oplocks = No
locking = Yes
oplocks = Yes
level2 oplocks = Yes
oplock contention limit = 2
posix locking = Yes
strict locking = Auto
share modes = Yes
dfree cache time = 0
dfree command =
copy =
preexec =
preexec close = No
postexec =
root preexec =
root preexec close = No
root postexec =
available = Yes
volume =
fstype = NTFS
set directory = No
wide links = Yes
follow symlinks = Yes
dont descend =
magic script =
magic output =
delete readonly = No
dos filemode = No
dos filetimes = Yes
dos filetime resolution = No
fake directory create times = No
vfs objects =
msdfs root = No
msdfs proxy =
More information about the samba
mailing list