This has happened again. Since this is Hardy, there is no apport-
collect. The following information has been added to the bug:
1) uname -a > uname-a.log
2) dmesg > dmesg.log
3) sudo lspci -vvnn > lspci-vvnn.log
4) cat /proc/version_signature > version.log
Please let us know if any additional d
** Attachment added: "dmesg.log"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1791464/+files/dmesg.log
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** Attachment added: "lspci-vvnn.log"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1791465/+files/lspci-vvnn.log
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** Attachment added: "uname-a.log"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1791466/+files/uname-a.log
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** Attachment added: "version.log"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1791467/+files/version.log
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One additional detail. The following error was reported on the
application side:
destination file error: CrystalEnterprise.DiskUnmanaged: Access is
denied.
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This also looks suspicious too (dmesg.log):
[14076616.248406] audit(1294765455.905:2753): type=1503
operation="inode_permission" requested_mask="w::" denied_mask="w::"
name="/var/run/samba/winbindd_privileged/pipe" pid=23931
profile="/usr/sbin/cupsd" namespace="default"
I wonder if AppArmor pro
That is an AppArmor message from the AppArmor cups profile, not a samba
one.
I doubt it's related, but you could try and temporarily disable the
AppArmor cups profile to make sure.
Instructions for doing so are here:
https://wiki.ubuntu.com/DebuggingApparmor
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We disabled the AppArmor profile, but there was no effect on this error.
We reviewed the domain controller logs when one of these authentication
failures happened. There was not entry in the domain controller logs
stating that the authentication was attempted. For all successful
authentications,
We performed a full Wireshark trace when the authentication failure
happens.
It looks like all successful authentications send packets to the domain
controller and perform an LDAP searchRequest. However, when the failures
happen, we don't see any data being sent to the Windows domain
controllers.
@Joseph Salisbury, can you please attach the relevant logs in /var/log/samba/
after doing the following:
1) In /etc/samba/smb.conf set the debuglevel =10 (in the
Debugging/Accounting section, before log ="")
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@ Surbhi, thanks for the feedback. I don't see debuglevel in the
smb.conf file. Is the parameter "log level = N" the same option? In
the previous logs we had this set to 5. I can see if we can increase
it to 10. If "debuglevel" and "log level" are different, I can see if
we can add that para
@Surbhi, We have logs with the log level set to 5. Will setting the
log level to 10 provide additional valuable data? We would like to
prevent any changes, since this is a production environment, and
changing the log level requires a maintenance window.
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@Joseph Salisbury, yes please do attach the logs with the log level set
to 10. It will give us more voluminous output.
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Title:
int
@Surbhi, unfortunately increasing the log level to 10 caused a
production outage. The high amount of logging overloaded the system and
made it unresponsive.
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@Joseph Salisbury,
Can you attach the wireshark trace in case of a failure _and_ in case of
success. We need to find out the difference in the data that the windows client
is sending to the samba server. Thanks!
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Comparing the success and the failure logs attached by the bug reporter,
I can see the following difference:
Success-log:
[2010/03/11 08:05:57, 3] libsmb/ntlmssp.c:ntlmssp_server_auth(739)
Got user=[someuser] domain=[SOMEDOMAIN] workstation=[SERVER3] len1=24 len2=24
[2010/03/11 08:05:57, 2] auth
** Attachment added: "crystal3_2011-02-08_1000.pcap"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1901891/+files/crystal3_2011-02-08_1000.pcap
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** Attachment added: "fs1_2011-02-08_1000.pcap"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1901896/+files/fs1_2011-02-08_1000.pcap
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https:/
Two wireshark traces were uploaded. The system crystal3 is the Windows
server. The system fs1 is the Ubuntu server.
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Title:
inte
** Attachment added: "crystal3_2011-01-25_1345.pcap"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1912733/+files/crystal3_2011-01-25_1345.pcap
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** Attachment added: "fs1_2011-01-25_1345.pcap"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1912734/+files/fs1_2011-01-25_1345.pcap
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Failure vs Success screenshot. Failure is left screen and success is
right screen.
** Attachment added: "wireshark_auth_screenshot.png"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1912735/+files/wireshark_auth_screenshot.png
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Samba log showing failure and success that match up with the wireshark
dumps.
** Attachment added: "crystal3.log"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1912741/+files/crystal3.log
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@Surbhi,
I uploaded two additional wireshark traces. These traces are for the
same two machines, but from an earlier date. The two wireshark traces
show sucessful auths and failures for both users(service_bhavnacrysta
and crystaluser).
I also uploaded the samba log for this time period. The lo
/var/log/auth.log file.
** Attachment added: "auth_log"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1915502/+files/auth_log
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smb.conf file.
** Attachment added: "smb.conf"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1915503/+files/smb.conf
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** Attachment added: "crystal3.log.old"
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+attachment/1917956/+files/crystal3.log.old
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What version of windows are the clients running that are giving you
fits?
Regards
chuck
** Changed in: samba (Ubuntu)
Importance: Undecided => Medium
** Changed in: samba (Ubuntu)
Status: New => Incomplete
--
intermittent authentication: check_ntlm_password: Authentication for user
Windows 2003 Server Standard SP2.
--
intermittent authentication: check_ntlm_password: Authentication for user
[someuser] -> [someuser] FAILED with error NT_STATUS_ACCESS_DENIED
https://bugs.launchpad.net/bugs/526464
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Server T
Could you attach a log with a successful identification ?
Looks like it's password that is failing, which doesn't make sense if it's
intermittent:
check_ntlm_password: Authentication for user [someuser] -> [someuser] FAILED
with error NT_STATUS_ACCESS_DENIED
--
intermittent authentication: che
[2010/03/11 08:05:57, 0] lib/util_sock.c:write_data(562)
write_data: write failure in writing to client 10.1.1.15. Error Connection
reset by peer
[2010/03/11 08:05:57, 0] lib/util_sock.c:send_smb(761)
Error writing 4 bytes to client. -1. (Connection reset by peer)
[2010/03/11 08:05:57, 3] smbd
** Changed in: samba (Ubuntu)
Status: Incomplete => Confirmed
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intermittent authentication: check_ntlm_password: Authentication for user
[someuser] -> [someuser] FAILED with error NT_STATUS_ACCESS_DENIED
https://bugs.launchpad.net/bugs/526464
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Has any progress been made on this? Any chance Lucid Lynx doesn't have
this bug?
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intermittent authentication: check_ntlm_password: Authentication for user
[someuser] -> [someuser] FAILED with error NT_STATUS_ACCESS_DENIED
https://bugs.launchpad.net/bugs/526464
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Any progress made on this ?
I'm facing the same bug on Debian Wheezy, Samba version 3.6.6.
Windows 7 clients.
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Title:
intermittent
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