samba - Jan 2010 - Dual booted clients with different name drop each other out of domain

Hi,

I'm setting some Ubuntu Karmic clients on a school net. PDC is windows 
2k3 r2. I realized that DHCP server sends only "school", not 
"school.net" as domain name. I have been told that AD configuration
was
migrated "as is" from an older windows release. I used a
"supersede"
line on client's dhcp.conf to get a correct domain name. I'm not 
authorized to do any configuration change on PDC but could see the event 
log, etc.

Client machines are dual booted: XP client and Ubuntu client on the same 
machine get different unique names. Ubuntu clients are configured 
following the guides available on the Net, and are working quite well: 
domain users can logon and shares are mounted.

But XP and Ubuntu keep dropping each other out of domain. Any ideas?

TIA
Roman

Am Samstag, 30. Januar 2010 20:20:15 schrieb Roman
Mu?oz:
> Hi,
> 
> I'm setting some Ubuntu Karmic clients on a school net. PDC is windows
> 2k3 r2. I realized that DHCP server sends only "school", not
> "school.net" as domain name. I have been told that AD
configuration was
> migrated "as is" from an older windows release. I used a
"supersede"
> line on client's dhcp.conf to get a correct domain name. I'm not
> authorized to do any configuration change on PDC but could see the event
> log, etc.
> 
> Client machines are dual booted: XP client and Ubuntu client on the same
> machine get different unique names. Ubuntu clients are configured
> following the guides available on the Net, and are working quite well:
> domain users can logon and shares are mounted.
> 
> But XP and Ubuntu keep dropping each other out of domain. Any ideas?
> 
Would be a good idea to change the MAC address on one of the multiboot setups.

Quoting Roman Mu?oz <tatel at infonegocio.com>:
> But XP and Ubuntu keep dropping each other out of domain. Any ideas?
You might not be seeing this, but it is something to think about...

I needed (or chose to) create separate machine accounts for each dual  
booted OS.  One OS would change the machine account password, and the  
other OS would not be able to join the domain since it had the wrong  
password.  Giving each OS a separate machine name made life a lot nicer.

Am Sonntag, 31. Januar 2010 01:14:33 schrieb Jonathon
Doran:
> Quoting Roman Mu?oz <tatel at infonegocio.com>:
> > But XP and Ubuntu keep dropping each other out of domain. Any ideas?
> 
> You might not be seeing this, but it is something to think about...
> 
> I needed (or chose to) create separate machine accounts for each dual
> booted OS.  One OS would change the machine account password, and the
> other OS would not be able to join the domain since it had the wrong
> password.  Giving each OS a separate machine name made life a lot nicer.
> 
Talking about different machine names should mean different DNS names (as well).
A MAC override might help.

Thanks for your answers.

Probably it would be not very difficult to change the MAC address. This 
has the advantage that could work even if IT staff doesn't want to do 
any change in their dhcpd configuration.

On the other hand, it seems that reconfiguring dhcpd would be a nicer 
solution that could perhaps be accepted by IT staff. However the pointer 
given seems to be about linux dhcpd, not about windows dhcpd. After some 
googling I got the windows doc about vendor classes, but I wonder by 
just changing host's name is not enough.

Could you guys give any pointer to dual boot problem between windows OSes?

Thanks again,
Roman

Rob Townley(e)k dio:
> changing the MAC is not recommended.
> 
> Same problem with dual booted win2k/winxp/winvista machines as well.
> Not just a Linux issue.
> 
> Do u have control / influence over dhcpd?  if so, Linux clients and
> MSFT clients can be detected by their dhcp vendor id and then given a
> different hostname and ip address even though the MAC IS THE SAME.
> 
> drbl.sf.net has a good example of using dhcp vendor id when assigning
> an ip configuration.
> look at /etc/dhcp/dhcpd.conf
> 
> report back and let us know.
> 
> On 1/30/10, Roman Mu?oz <tatel at infonegocio.com> wrote:
>> Hi,
>>
>> I'm setting some Ubuntu Karmic clients on a school net. PDC is
windows
>> 2k3 r2. I realized that DHCP server sends only "school", not
>> "school.net" as domain name. I have been told that AD
configuration was
>> migrated "as is" from an older windows release. I used a
"supersede"
>> line on client's dhcp.conf to get a correct domain name. I'm
not
>> authorized to do any configuration change on PDC but could see the
event
>> log, etc.
>>
>> Client machines are dual booted: XP client and Ubuntu client on the
same
>> machine get different unique names. Ubuntu clients are configured
>> following the guides available on the Net, and are working quite well:
>> domain users can logon and shares are mounted.
>>
>> But XP and Ubuntu keep dropping each other out of domain. Any ideas?
>>
>> TIA
>> Roman
>>
>> --
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>