Discussion: DNS Blues
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Vieux 10/03/2006, 14h38   #7
Kurt
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OOPs!

Should have been "span portfast"

....kurt

"Kurt" <lorentzenkurt@nospam.hotmail.com> wrote in message
news:12115bhnek48k7c@corp.supernews.com...
> Cisco switches, out of the box, have portfast disabled. What yo can do is
> watch the switch when you start up the computer. The port will stay
> "amber" until spanning-tree has determined that allowing traffic won't
> create loop. If your computer boots up (newer comptuers with XP boot in
> about 15 seconds) before the port status light on the switch goes green,
> that could be an issue. To fix it, just console into the switch, enter
> config mode, change to the interface and issue the command "no span
> portfast".
>
> ...kurt
>
>
> "Dragon" <baadil_nospam@hotmail.com> wrote in message
> news:uJBGtD5QGHA.5552@TK2MSFTNGP14.phx.gbl...
>> Thank you Kurt for your reply.
>>
>> I guess these are legit comments. Especially regarding the NIC drivers.
>> We currently do not install drivers from HP's website etc but instead
>> install them from the Smart Start CD that comes with the servers. If we
>> are using ghost, then the same driver goes on all the servers.
>>
>> I am not too sure about the network switch though. We do use cisco but
>> nothing at all is configure on the switches. In most cases not even an IP
>> address. Also, I have cutter setup all over and having similar
>> issue at multiple locations. This is why I am ruling out bad switch. I do
>> however need to look a bit more into the default setup on Cisco switches
>> and see if they have anything in them that perhaps is causing.
>>
>> Thank you.
>>
>> "Kurt" <lorentzenkurt@nospam.hotmail.com> wrote in message
>> news:120v99cs6gfsc51@corp.supernews.com...
>>>
>>> In reseraching a similar issue I ran across a MS article about W2K3
>>> having name resolution / netlogon problems if the NIC driver was wrong.
>>> I wish I had the link, but I believe it said that many things would
>>> still work (ping, etc) but things that involved certain RPC / DCOM
>>> functions would fail. The crux was that you need to update / correct the
>>> drivers for the NICs. Another silly thing is if the workstations are
>>> plugged into a Cisco switch with spanning-tree taking too long to begin
>>> forwarding. "spanning-tree portfast" fixes that one. If not those then
>>> you'll need to run general connectivity diagnostics at the workstations
>>> to see why they they cannot connect. It could be a hardware problem on a
>>> switch - I recently watched a tech change a motherboard on a computer
>>> with a connectivity issue, just to discover later that a network switch
>>> was flaking out.
>>>
>>> ...kurt
>>>
>>>
>>>
>>> "Dragon" <baadil_nospam@hotmail.com> wrote in message
>>> news:%23JsvmHtQGHA.4536@tk2msftngp13.phx.gbl...
>>>> Thank you Kurt for your reply. I will try to answer yours questions.
>>>> Please note that this is not a single setup. I have these setup located
>>>> all over the country and they all are cutter setups. All similar
>>>> configuration (different IP/Domains).
>>>> First node (ab999NodeA.ab999.mnopq) installed using default from DC
>>>> Promo. Domain name is ab999.mnopq.
>>>> Ran DCPromo on ab999NodeB to join existing tree/domain.
>>>> Installed DNS on ab999NodeB.
>>>> As far as I can tell, all replication is happenning fine.
>>>> DNS does resolve properly.
>>>> All FSMO roles are on ab999NodeA, never moved.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> "Kurt" <lorentzenkurt@nospam.hotmail.com> wrote in message
>>>> news:120pcn4l7gbln06@corp.supernews.com...
>>>>> Can you tell us a bit more about your setup? You say installed "with
>>>>> all the standard defaults". Of course if you installed 2 W2K servers
>>>>> and selected all of the defaults during a DCPromo, you would have
>>>>> created two entirely independent domains rather than a single domain
>>>>> with 2 DCs. So....
>>>>>
>>>>> What is the domain name (you can use a pseudonym if your security
>>>>> warrants it?
>>>>> Is the second domain controller able to replicate with the 1st? (DNS,
>>>>> group policy, Netlogon share, User and Computer accounts, etc?)
>>>>> Does DNS resolve the domain name? (nslookup domain.local)
>>>>> Are all of the FSMO roles on the first DC, or did you transfer some to
>>>>> the other DC?
>>>>>
>>>>> ...kurt
>>>>>
>>>>>
>>>>> "Dragon" <baadil_nospam@hotmail.com> wrote in message
>>>>> news:upUAWhWQGHA.2012@TK2MSFTNGP14.phx.gbl...
>>>>>> Hi,
>>>>>>
>>>>>> I have the following setup in my lab:
>>>>>>
>>>>>> 2x Windows 2000 Std Servers running on HP harware
>>>>>>
>>>>>> Both systems are domain controllers using standard defaults in
>>>>>> DCPromo and installing DNS during initial DCPromo. No changes are
>>>>>> made to the system except taking default. After DCPromo DNS is
>>>>>> installed on the secondary server as well.
>>>>>>
>>>>>> First server: DNS1 = 2ndServer, DNS2=1stServer
>>>>>> Second Server = DNS1 = 1stServer, DNS2=2ndServer
>>>>>>
>>>>>> Now at times, when I have 2nd server shutdown and restart the 1st
>>>>>> server, it is hanging at "Loading Network Configuration" screen.
>>>>>> Sometime it may take up to 45 minutes before I see the login. I have
>>>>>> tried swapping the DNS entries in the IP properties but I still get
>>>>>> the same.
>>>>>>
>>>>>> My second issue is that I often see clients complaining "unable to
>>>>>> find a domain controller" etc. I would think that I might have a
>>>>>> network issue but I have the same exact setup at other locations with
>>>>>> same issues. Please note that these systems do not connect to any
>>>>>> other system or network (no internet either). I have also tried
>>>>>> deleting the Dot domain but no success.
>>>>>>
>>>>>> Any ideas what I am doing wrong here?
>>>>>>
>>>>>> thanks.
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>

>>
>>

>
>



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