Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- From: "GreenGoblin" <none@xxxxxxxx>
- Date: Tue, 22 Nov 2005 10:34:47 -0500
OK, I will do that, so the 1B record must be the same on all wins servers.
How do I know what the SMB's should be? I know on say subnet .60 that my
other dc should be the smb, but what record would be in wins? Just a
standard record?
In DHCP all clients get 2 WINS Server addresses, should they get both or
just 1?
How do I enable Netbios over tcp for wins, is that the record with the
details 0x8 or something similar?
"Bill Grant" <not.available@online> wrote in message
news:%23XqVdsy7FHA.3388@xxxxxxxxxxxxxxxxxxxxxxx
> WINS uses Netbios over TCP/IP. WINS is just a name server like DNS. The
> difference is that it uses Netbios names, not heirarchical names like DNS
> uses.If the clients didn't have Netbt enabled, they would never appear in
> WINS in the first place. Do you have all client machines and servers
> configured with a WINS address (either static or from DHCP)? All machines
> should register with WINS.
>
> Browse lists are built and exchanged by the computer browser service.
> If you really want to know how it works, start with KB188001 . The KB has
> links to further documents .
>
> Start by looking hard at WINS. Make sure all WINS servers have an entry
> for <domainname 1b> . Make sure all backup browsers are registered in
> WINS. It doesn't matter which subnet your clients are in. They can reach
> the DMB as long as the WINS server they use has the <domainname 1B>
> entry.
>
> GreenGoblin wrote:
>> Bill, one more question. I am looking at my dhcp scope now, do I need
>> to enable netbios there for all clients, could that be the reason
>> they are not getting to the SMB or DMB?
>> I didn't know that setting was important because I thought WINS took
>> care of this?
>> So if you provide a WINS server, what does netbios over tcp do? Does
>> that also make clients use WINS before DNS?
>> "GreenGoblin" <none@xxxxxxxx> wrote in message
>> news:exDQXFx7FHA.3876@xxxxxxxxxxxxxxxxxxxxxxx
>>> Bill,
>>> that's great information.
>>> So I do have a 1b entry but that is the dc on the .70 subnet. So my
>>> machines are on.60 and .70. So if I am following this then machines
>>> on .60 won't get the master browse list from the dc on the .70? So
>>> they got to the SMB which is the DC on the .70. Well, I checked
>>> name resolution and all that is fine. So where can I look next? Does
>>> this have to do with clients netbios over tcp settings?
>>> If the browse list isn't replicated with wins, what method is it that
>>> makes the browsers replicate to eachother?
>>>
>>> There are many servers on each subnet so that makes no sense that the
>>> clients are promoting themselves?
>>> "Bill Grant" <not.available@online> wrote in message
>>> news:e4b%23Y9w7FHA.476@xxxxxxxxxxxxxxxxxxxxxxx
>>>> GreenGoblin wrote:
>>>>> Hi,
>>>>> I have read many posts on this subject recently. I am in the same
>>>>> dilemma's as many other people on here and I have read all the
>>>>> recent posts but there hasn't been a good solution offered.
>>>>>
>>>>> I can't find a clear answer on this so maybe if everyone sticks to
>>>>> one post we can all work it out? Basically I have 15 vlan's routed
>>>>> with cisco equipment and run mostly on hp/cisco switches. This is
>>>>> a 2003 domain with 3 sites and 2 dc's at each location. All dc's
>>>>> are GC's as well. 1 location is coming down soon so let's just
>>>>> work with 2 sites. We have WINS running on 2 dc's at one location
>>>>> and then at another location on 2 different servers, 1 of which is
>>>>> a dc and 1 that is not. I don't replicate WINS to the other
>>>>> location as it is in another country and we don't see a need to
>>>>> browse through sites or that it is even needed to replicate, is
>>>>> that wrong? Therefore let's just work with a single site and that
>>>>> is my trouble. So I have 2 dc's with all the FSMO roles on one of
>>>>> them. They are both on different subnets. I have about 140
>>>>> clients. I am trying to find out how to control the browsing and
>>>>> how to set the reg key "isdomainmaster" or if I set that manually
>>>>> at all. I would like to know how most people are handling this
>>>>> issue where xp clients are just filling up the event logs with
>>>>> errors about machines promoting themselves. This seems to be
>>>>> quite a common issue and I haven't read a good response yet on how
>>>>> to really fix this? I know it is a "chatty" service but there
>>>>> must be a solution. Some of you MVP's recommend that people shut
>>>>> off the browser service while others are quite opposed to that. I
>>>>> have used browstat and browmon but the only thing I see is that
>>>>> multiple member servers or clients are promoting themselves and I
>>>>> don't know why they can't reach the DMB anyway. Is it in fact
>>>>> correct that the browser service will not traverse a router? If
>>>>> that is true then doesn't the information get replicated to the
>>>>> DMB on one subnet via WINS? My dc/dns/wins server 1 is on a .60
>>>>> subnet. My dc/dns/wins server 2 is on a .70 subnet. Server 2
>>>>> should send it's info over to server 1 when wins replicates right?
>>>>> So why is my network neighborhood not updating? Why are clients
>>>>> promoting themselves instead of going to the master browser -
>>>>> server 2on the .70 subnet or a backup server? Don't server OS'
>>>>> take precedence for promotion?
>>>>> Thanks
>>>>> your friendly neighborhood Goblin.
>>>>
>>>> First off I will repeat what I said in another post recently. The
>>>> entries you see where workstations appear to be promoting
>>>> themselves is usally a symptom that the browser service has already
>>>> failed. They are not really trying to become master browsers. They
>>>> send the announcement to trigger off a browser election because
>>>> they cannot get a browse list. This is the standard method for a
>>>> client to force an election when browsing is not working.
>>>>
>>>> Building a browse list is done by LAN broadcasts. That is why it
>>>> doesn't just work in a routed network. The router blocks the
>>>> broadcasts, and each segment builds its own browse list. There are
>>>> two things necessary for browsing to work in a routed network.
>>>>
>>>> The first essential is a domain controller. Only a domain
>>>> controller can merge browse lists from different segments to build
>>>> a network-wide list. The second essential is a method for the
>>>> Domain Master Browser to find the Segment Master Browsers in other
>>>> segments/subnets. That is where WINS comes in.
>>>>
>>>> WINS does not store or replicate browse lists. The part it plays
>>>> is simply to provide a means for the DMB to find the SMBs (and vice
>>>> versa). Because they are in different subnets/segments they cannot
>>>> communicate by broadcast. They need to be able to go to WINS to
>>>> resolve names to IP addresses. They can then communicate directly
>>>> with machines in other subnets/segments.
>>>>
>>>> If browstat/browmon isn't giving you the info you need, you will
>>>> need to go to a network monitor/sniffer. That is the only way to
>>>> really see why a client machine cannot get a browse list. You need
>>>> to see how it requests a browse list and why it fails.
>>>>
>>>> The normal process is that the client will query WINS for the
>>>> special Netbios name <domainname 1B> (ie the domain master
>>>> browser) . If WINS has an entry for this name, it should return the
>>>> IP address of the DMB. The client then sends off a request for the
>>>> browse list. Common causes of failure are that the client doesn't have
>>>> the
>>>> correct domain name (this is common with remote access clients
>>>> which are logged in elsewhere) , or WINS doesn't have an entry for
>>>> the DMB. The most common cause of master browser failures is multihomed
>>>> browse masters. If a master browser is multihomed (and this
>>>> includes remote access servers which have a "internal" interface
>>>> with its own IP), browsing fails when the "wrong" IP is used to
>>>> contact the browse master. Netbios bound to one interface is not
>>>> seen if you use the IP address of a different interface on the
>>>> machine. VLANs complicate the situation because each VLAN is a separate
>>>> broadcast domain. So each VLAN has its own SMB. In VLANs without
>>>> servers, the SMB will be a workstation. Because workstations come
>>>> and go, the SMB will not be consistently the same machine. When the
>>>> current SMB shuts down, you get the same situation as in a
>>>> workgroup when the current master browser shuts down.
>
>
.
- Follow-Ups:
- References:
- Computer Browsing Service - anyone want to contribute for a good conversation?
- From: GreenGoblin
- Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- From: Bill Grant
- Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- From: GreenGoblin
- Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- From: GreenGoblin
- Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- From: Bill Grant
- Computer Browsing Service - anyone want to contribute for a good conversation?
- Prev by Date: Re: Routing Tables
- Next by Date: Re: Could I have your suggestions?
- Previous by thread: Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- Next by thread: Re: Computer Browsing Service - anyone want to contribute for a good conversation?
- Index(es):
Relevant Pages
|