Re: [Samba] Access to Windows 2016 server works with IP but not with netbios name
- Date: Fri, 12 Jan 2018 11:16:05 -0500
- From: Rob Marshall via samba <samba@xxxxxxxxxxxxxxx>
- Subject: Re: [Samba] Access to Windows 2016 server works with IP but not with netbios name
The client is a Windows 2008 R2 server. I don't know what you mean by
classic vs. AD. I assume it's AD, but how would I check?
I see the same problem, i.e. "Access is denied" and a window to enter the
username/password, if I use the fully qualified name.
On Fri, Jan 12, 2018 at 10:58 AM, Gaiseric Vandal via samba <
> Can you clarify - are they trying to access the samba server from a Win
> 2016 machine? Is this a classic domain or AD domain?
> Do you have a WINS server defined? Can you access via a fully
> qualified domain name (e.g. myserver.mydomain.com.) I had an issue
> several years back where users connecting over VPN could access by IP but
> not my short name. The problem was that the VPN was blocking at least
> some netbios traffic (137-139) which meant that anything relying on netbios
> names failed. If you could connect via IP address of fully qualified
> domain name then you were by passing netbios name resolution issues and
> connecting directly to port 445.
> I have run into several issues with classic domains with SMB3 and Windows
> 10 (which presumably would apply to Win 2016 as well.) Windows 10 would try
> to negotiate SMBv3 with some servers and would fail. (This may have been
> samba 4 servers so I don't think this applies to you.) I also had
> problems with Win 7 and Windows 2008 and SMB v2, especially with multiple
> users connecting via remote desktop to Windows 2008. The first use
> could map a drive but not successive users. You may want to
> explicitly set your samba servers to use SMB v2 as the max protocol or even
> Samba 1.x.
> I also run into an issue with drive mapping using short name vs long name
> in a classic domain. If my DNS domain is mycompany.com, and my samba
> domain is TECH, then if I may a drive to myserver.mydomain.com there is
> a discrepancy between the Samba domain name and the DNS domain name.
> This didn't cause problems with Windows itself but it did with Office 2013
> after some updates. Office would not open files determined to be from an
> untrusted source.
> I migrated away from a classic domain to a true AD domain so a lot of my
> netbios and name resolution issues went away.
> On 01/12/2018 10:19 AM, Rob Marshall via samba wrote:
>> I have a customer who is able to access shares using the IP address of the
>> Samba server (running 3.6.x - sorry, can't upgrade) but when they try to
>> access the share using the short (netbios) name, they get "access denied"
>> and are prompted for a username/password.
>> Where would I look to figure out what's going wrong?
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