[Samba] unable to join to a Samba4 domain

Lukasz Zalewski lukas at dcs.qmul.ac.uk
Tue May 25 12:55:55 MDT 2010

On 25/05/2010 14:08, Tomasz Chmielewski wrote:
> Am 25.05.2010 14:50, Tomasz Chmielewski wrote:
>> Am 25.05.2010 13:58, Lukasz Zalewski wrote:
>>>> What more info should I provide?
>>> The only way i can replicate your problem and get simmilar message, is
>>> by blocking access to port 389 both TCP and UDP on the samba4 host - it
>>> seems like enabling either (i.e. TCP or UDP) produces enter credentials
>>> dialog. Note that i have used Windows 7 rather than Srv2008
>> The only packets exchanged, from the moment I press "OK" button to
>> when the error is shown, are:
>> - DNS queries
>> - LDAP queries
>> ( - Samba4; - Windows 2008)
>> So, nothing blocked on Samba4 side (and LDAP queries add some data to
>> Samba debug log).
> If I block LDAP on UDP, Windows does not send queries to LDAP on TCP. Is
> it the same for you?
> And indeed, the error message is the same whether 389/UDP is blocked or
> not.

I'n my case if one protocol (TCP or UDP) in that port is enabled things 
seem to work. if both are disabled i get the error message. Have you 
tried to disable firewall on samba4 host just to rule it out? Presumably 
you don't have any other firewalls in the way? I will try to join 
Windows 2008 to the domain tomorrow as a test.

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