search for: ntlmv2

I tested NTLMv2 again using the newly created Samba 3.0.2 (I didn't test 3.0.1). It still doesn't seem to work. Has anyone successfully made NTLMv2 work? If so, can I have a working sample of the smb.conf file? I have included below entries in my smb.conf (among other entries): security = server password...

...Could someone point me to a documentation which describes which NTLM flag combination in type 1 & 2 create which type 3 response. As far as I read MS has the following client/DC configuration combinations. Send LM & NTLM responses Clients use LM and NTLM authentication, and never use NTLMv2 session security; DCs accept LM, NTLM, and NTLMv2 authentication. Send LM & NTLM - use NTLMv2 session security if negotiated Clients use LM and NTLM authentication, and use NTLMv2 session security if server supports it; DCs accept LM, NTLM, and NTLMv2 authentication....

Hello, Has anyone successfully configured Samba 3.0 to authenticate using NTLMv2 only? I have below entry in smb.conf: password server = <domain controller> to use domain controller for user authentication and DC is configured with Level 5 - DC refuses LM and NTLM authentication (accepts only NTLMv2). So far I got: "System error 1326 has occurred. Logon failure: unk...

Hi folks, I have been asked to force NTLMv2 logins to avoid use of LM hashes. To meet the requirement I added some lines to the smb.conf in [Global] (we only have that section anyway - this is purely for domain authentication with an ldap backend): client lanman auth = no client NTLMv2 auth = yes lanman auth = no min protocol =...

...ort extended security . Mapping a share from that server, using smbclient, was working before applying badlock patches (to the smbclient) , with default settings in smb.conf. However, after applying badlock patches, smbclient fails to map with default settings. When I set the option : "client ntlmv2 auth = no", mapping works fine, however it uses ntlmv1 rather than ntlmv2 . I am suspecting it is due to the 'behaviour changes' documented in https://www.samba.org/samba/security/CVE-2016-2111.html : "client ntlmv2 auth = yes" and "client use spnego = yes" (both...

Hello: As many of you already probably know, the neon library is the workhorse for davfs support. However, right now, the current version of libneon has very limited support for NTLM, particularly NTLMv2, both on the challenge/authentication side as well as handling NTLMv2 Session Security. There is a patch somewhere to add NTLMv2 authentication support natively but there is zero support for NTLMv2 session security. What this means is that if you try to mount a share using davfs and the server in...

Hello, everyone, I'm trying to mount a CIFS share served by Samba using mount.cifs with NTLMv2 authentication. According to 'man mount.cifs' the option "sec=ntlmv2" should be supported, but it keeps giving me "mount error(22): Invalid argument". The Samba server enforces the use of NTLMv2. When allowing for NTLMv1 on both sides everything works just fine. The...

Hi all. Just looking for some guidance as to what works, and what doesn't. Recently I've noticed that no matter what I do, I can't seem to get NTLMv2 to negotiate using Windows Vista, Windows 7 or Mac OS X 10.6.x against Solaris 10 Samba 3.0.37. If I 'tune' the client OS that it only negotiates with NTLMv1, all is well. In my global block, on the Solaris Samba server, I have: [global] client lanman auth=no client ntlmv2 auth=yes...

...have patience to read this and I'll appreciate any of your help. I learned a lot from this post http://lists.samba.org/archive/jcifs/2008-October/008227.html. I know that a "man in the middle" technique, like 'JCIFS NTLM HTTP Authentication Filter', will not work when using NTLMv2 and the only technique is using NetLogon. Am I right? Besides, a 'TargetInfo' field is necessary to calculate NTLMv2 response. However, I'm reading a proxy code these days and did some test on it. It uses the MITM technique, that is so say, proxy returns the challenge of SMB server(wi...

Hello :-), I have some problem with the cifs client of linux. I can't mount a volume from a Windows 7 machine with NTLMv2 authentication. e.g. # mount -t cifs //win7-box/C\$ mount-point --verbose -o sec=ntlmv2,credentials=smb-passwd mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) #dmesg | tail Status code returned 0xc000000d NT_STATUS_INVALID_PARAMETER fs/cifs/netmisc....

Is there a way to make rpcclient support ntlmv2? When I configure my server to only accept ntlmv2 logins, my rpcclient stops working. I tried the approach needed to make TNG's rpcclient use ntlmv2 (a line like "client ntlmv2 = auto" in smb.conf), but it didn't work. Thanks, Dave _______________________________________________...

Hi folks, I've been testing out Windows Vista Enterprise today. It defaults to only using NTLMV2 authentication. I'm testing with Samba 3.0.23d running on Sparc/Solaris 8. Samba is configured with security = domain The password server is a Windows Server 2003 domain controller. I've joined Samba to the domain. I simply can't get Vista to connect unless I change its security p...

Hello, i set up a squid proxy that should authenticate users against a samba PDC using winbind. It works fine as long i allow ntlmv1: on the PDC: ntlm auth = yes lanman auth = no client ntlmv2 auth = yes If i restrict the domains authentication method to ntlmv2 - that's what i want - with these settings: ntlm auth = no lanman auth = no client ntlmv2 auth = yes i get this error in the logs: ntlm_password_check: NTLMv1 passwords NOT PERMITTED for user willi...

All, I need to force XP clients to use NTLMv2 when mapping to samba 3.6.12. My config is: ntlm auth = No client NTLMv2 auth = Yes client lanman auth = No client plaintext auth = No lanman auth = No XP systems can still map shares with the above config. If I add: max protocol = SMB2 min protocol = SMB2 W7 systems map shares, XP systems ca...

Hello :-), I have some problem with the cifs client of linux. I can't mount a volume from a Windows 7 machine with NTLMv2 authentication. e.g. # mount -t cifs //win7-box/C\$ mount-point --verbose -o sec=ntlmv2,credentials=smb-passwd mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) #dmesg | tail Status code returned 0xc000000d NT_STATUS_INVALID_PARAMETER ?fs/cifs/netmisc....

...running and i have it working; mostly. The kicker is the 2 employees testing Vista (myself and my supervisor) could not authenticate against the server. I say could because through a variety of testing and some lucky reading I found the cause of the problem to be that by default Windows Vista uses NTLMv2 only, and when I change the setting to LM & NTLM using NTLMv2 for negotiation it all works. The old proxy server allowed us ot authenticate using NTLMv2, and that is the goal of this question: what am I missing in my configuration? Here's a dump of smb.conf taken via a testparm: [global]...

...ed, Apr 19, 2017 at 11:03:34AM -0400, pisymbol . via samba wrote: > Hello: > > As many of you already probably know, the neon library is the workhorse for > davfs support. > > However, right now, the current version of libneon has very limited support > for NTLM, particularly NTLMv2, both on the challenge/authentication side as > well as handling NTLMv2 Session Security. > > There is a patch somewhere to add NTLMv2 authentication support natively > but there is zero support for NTLMv2 session security. What this means is > that if you try to mount a share using...

...ng up against a bunch of ntlm v2 related issues recently with Windows 7 and Mac OS X 10.6 client systems attempting to connect to my Solaris 10 samba 3.0.37 server. As it turns out, Sun engineering suggest that because I use "security = SERVER" rather than "security = DOMAIN", ntlmv2 auth will never actually work, even if I have settings such as: client lanman auth = no ntlm auth = no client ntlmv2 auth = yes So - I guess the question is, is it possible to use ntlmv2 with security = server, or does that fundamentally not make sense? The suggestions engineering have given me s...

Hello, I'm having some issues with getting NTLMv2 authentication working, and I thought you might be able to help. I've got a Windows XP Pro client machine trying to access shares on a domain member server running Samba. (Both the domain member server and the PDC are running Samba 3.0.4.) The XP machine is by default configured to use NT...

On Thu, 21 Sep 2017 12:40:57 -0400 lingpanda101 via samba <samba at lists.samba.org> wrote: > > > I'm not understanding the change to 'ntlm auth' parameter. It's says > default is now ntlmv2-only as a value.  So this takes the place of > 'ntlm auth = no'(ie. ntlm auth = ntlmv2-only)? Using the value of > 'yes' is OK(ie. ntlm auth = yes)?  Thanks. > If you read the smb.conf manpage you will find this: ntlm auth = ntlmv2-only : can also be written as 'ntl...