search for: lmcompatibilitylevel

Hi, I'm wondering if samba supports NTLMv2, particullary NTLMv2 session security. But I can't even get NTLM-only to work :(. I'm trying to increase lmcompatibilitylevel, but I can't connect to the samba server anymore when I set it to 2 or higher ("Send NTLM authenication only"). I'm using HEAD CVS of today, and my smb.conf looks like this: [global] workgroup = WORKGROUP server string = Blablabla interfaces = 192.168.5.0/...

Hello experts/users, We have a samba server in ubuntu 18.04 LTS with version. apt-cache policy samba samba: Installed: 2:4.7.6+dfsg~ubuntu-0ubuntu2.16 Candidate: 2:4.7.6+dfsg~ubuntu-0ubuntu2.16 All is fine and great. Except one (internet disabled) windows 7 professional PC (sorry we still need to run it for a scientific tool) cannot connect unless I put "ntlm auth = yes" in

...rver min protocol = SMB2' to smb.conf, remove the ntlm auth line and restart Samba, at this point, your Samba machine will no longer be using SMBv1. Now go to the Win 7 machine and open the registry editor. Navigate to HKLM\System\CurrentControlSet\control\LSA. Click on LSA You should see LMCompatibilityLevel in the right window pane, if you don't: choose 'Edit' > New > REG_DWORD. Replace "New Value #1" with "LMCompatibilityLevel". Double-click on LMCompatibilityLevel in the right window pane. Enter "5" You should now be using NTLMv2 everywhere. At th...

...work - users could log in and doing a tcpdump showed that the dialogue was different with NTLMSSP appearing. There was a problem though: Citrix users got locking out, so I changed a registry setting on all Windows PCs and the Citrix server: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\lmcompatibilitylevel was set to 3 and the Citrix machine rebooted. We found that it didn't help with the citrix problem so we reverted the samba change. All back to normal - Citrix users are happy. Later, we found that some new Laptops couldn't join the domain - reverting the samba change made that work too....

...;ntlm auth = yes' to smb.conf and restart Samba. > It was changed from 'yes' to 'no' with 4.5.0 don't sacrifice server configs for clients which should not exist at all https://www.imss.caltech.edu/node/396 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa] "lmcompatibilitylevel"=dword:00000005 ___________________________ winxp is fine after that with this settings lm announce = no lanman auth = no ntlm auth = no client lanman auth = no client ntlmv2 auth = yes

Thanks Andrew for the answer. But even if I enable Windows XP to use NTLMv2 (using Regedit on (HKEY_LOCAL_MACHINE/SYSTEM/CURRENTCONTROLSET/CONTROL/LSA LMCOMPATIBILITYLEVEL to 5) and adding "ntlm auth = ntlmv1-permitted" to my smb.conf Still the same error. (No *more connections can* be *made* to this remote computer at this time) in versions higher than 4.10. Any ideas? Best Regards Juan Franco. El vie., 21 ago. 2020 a las 20:01, Andrew Bartlett (<ab...

...e very much appreciated. >> server signing = no >Try this as yes. How did you get it work? I've tried the "server signing = yes or auto", but it didn't work. Could you kindly tell us how to set the XP to get it work? I have tried the register for lsa parameter "lmcompatibilitylevel" and netlogon key "lmworkstation", but nothing changed! Thanks in advance. Jianliang Lu TieSse s.p.a. Ivrea (To) - Italy j.lu@tiesse.com luj@libero.it http://www.tiesse.com

...omain PDC and I am looking to have clients attach to it NTLMv2 only. After looking over the man page for smb.conf, I have set the two options that I thought would accomplish: [Global] lanman auth = no ntlm auth = no On the workstation side, I have set HKLM\SYSTEM\CurrentControlSet\Control\Lsa\lmcompatibilitylevel to "5". When I try to join the clients to the domain, I get the error: "Logon Failure: Unknown Username or Bad Password" If I change the line, in smb.conf, for ntlm auth to "yes" and set the client registry key to "2" then I have no problem. NTLMv1 seem...

...must be applied to Windows NT 4.0 prior to applying this fix. ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/NT40/ hotfixes-postSP3/lm-fix The new registry parameter was added to the following registry key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\control\LSA Value: LMCompatibilityLevel Value Type: REG_DWORD - Number Valid Range: 0,1,2 Default: 0 Description: This parameter specifies the type of authentication to be used. Level 0 Send LM and Windows NT authentication (default). Level 1 Send Windows NT authentication and LM authentication only if the...

I discovered the situation. When attempting to logon from Windows 2008R2 to Samba4 is made we can see in Samba smbd log the following important for understanding the situation lines: [2017/11/20 13:25:52.040094, 2, pid=7100, effective(0, 0), real(0, 0)] ../libcli/auth/ntlm_check.c:430(ntlm_password_check) ntlm_password_check: NTLMv1 passwords NOT PERMITTED for user <username> [2017/11/20

...a bad password. I see an event logged 4625 with unknown username or bad password. Samba version is 3.6.4 and active directory is running on both 2008 R2 and 2012 R2 OS (with DFL/FFL as 2008 R2). I have tried with both versions of domain controllers without any success. I have also tried changing LmCompatibilityLevel on domain controllers from 0 till 5 but issue still persist. We initially thought this is because of MS16-077 patch but we uninstalled it from all our 2008 R2 domain controllers and 2012 R2 domain didn't have this patch at all. An example of our smb.conf file is here: [global] workgro...

...f you recall my previous posting, when using NTLMv1, this is MD4(NT#), which is MD4(MD4(Unicode(plaintext password))). You SHOULD, therefore, either: - add "client ntlmv2 = yes" to the smb.conf file used by rpcclient and samedit. The default is /usr/local/samba/lib/smb.conf. Set "LmCompatibilityLevel=0x4 or 0x5" on the PDC, and "LmCompatibilityLevel=0x2 or 0x3" on the workstations. See previous posting to NTBUGTRAQ for details and warnings about doing this. - after ANY usage of an administrator account to either change a user's password or create account using SRVMGR.EXE or...

Hi all, I'm running Samba 4.1.6 with Ubuntu 14.04.1 LTS on a Power 8 box. Here is my smb.conf file: [global] client lanman auth = yes client ntlmv2 auth = no lanman auth = yes netbios name = myName map untrusted to domain = yes log level = 3 [myshare] path = /home/myuser/myshare available = yes valid users = myuser read only = no browseable = yes public = yes writable = yes When I try to

Hello Rowland, sorry for responde so later, on windows 7 where I can see or found the samba version that you mentioned Samba >= 4.11.0, ? and where turning off smbv1 ? regards. El mi?., 12 ago. 2020 a las 17:31, Rowland penny via samba (< samba at lists.samba.org>) escribi?: > On 12/08/2020 20:16, jmpatagonia via samba wrote: > > Hello I start to implement a samba 4 ad DC

...9;t work (I suppose it has to do with my ISP has blocked port 139, to prevent people from accessing eachothers shares across apartments) I've tried to remove the external TP-connection, but to no avail. I really believe that it has to do with Windows XP. Someone told me it had to do with LmCompatibilityLevel... but I cannot draw any conclusions there either. I've really tried to find a solution, but I just can't do it. I really need some help here =( fisk@enquilon.lir.dk <for direct e-mail>

...r signing = auto or Yes" in smb.conf, the Windows XP clients can no longer connect to the samba (3.0.2), the "net use \\server\ipc$ /u:user password" return error 64. If I disabled the "server signing" the connection went ok. I've also checked register setting on XP (LMcompatibilityLevel, enablesignatures etc..) but no progress was made. The "server signing = auto" will make the samba to send the "security mode = 0x7" in netgotiate protocol response, that means "security =user" and "security signatures enabled" (not mandatory). So I can...

Are there multiple ways that Windows clients encrypt passwords? I'm seeing different behavior between two clients. On one, I can access a Samba share just fine. On the other, using the same username and password to access the same share, I get "incorrect password." Looking for the difference in Samba debug traces, I find it comes down to this: smb_password_ok: Checking SMB

El 3 de junio de 2020 10:28:19 GMT-04:00, Rowland penny via samba <samba at lists.samba.org> escribi?: >On 03/06/2020 15:08, Rommel Rodriguez Toirac via samba wrote: >> The operating systems used as clients in our network range mainly >from Windows XP to Windows 10. >> >> With Windows XP operating systems is happening that when it comes >time for a user to change

...sswordChange"=dword:00000001 "MaximumPasswordAge"=dword:1000000 and this didn't help. I've compared the machine password values on both LDAP servers - they are same and synchronization is working fine. In the wild, some people report that this issue is fixed when the "lmcompatibilitylevel" is limited to LM and NTLM authentication(NTLMv2 if negotiated), but this couldn't help too. [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa] "lmcompatibilitylevel"=dword:00000001 As I understood from `man 5 smb.conf`, the default Samba behaviour when nothing is specif...

HI to all! My Name is Juan Franco. I'm from Argentina, I work in a big gubernamental organization and we are migrating our deprecated (smb3 + Ldap + NT4) to Samba 4 AD DC: But I have some issues with newer versions. if I install a version newer to 4.9.x. Windows XP can't join the domain. The error message is ".. No *more connections can* be *made* to this remote computer at this