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what to find the WINS server in my LAN

Author
15 Nov 2007 4:46 AM
tek
What command can I execute to find which PC is acting as the WINS
server in my LAN?

Author
15 Nov 2007 8:21 AM
Steve Winograd [MVP]
In article
<a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
tek <kevind***@yahoo.com> wrote:
>What command can I execute to find which PC is acting as the WINS
>server in my LAN?

If a network connection has been configured to use a WINS server,
"ipconfig/all" will show the server's IP address.

At the risk of stating what you already know: a typical workgroup
network doesn't have a WINS server.  WINS usually requires a computer
running a server operating system.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see.  I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
Author
15 Nov 2007 1:32 PM
tek
Show quote
On Nov 15, 3:21 am, "Steve Winograd [MVP]" <bc0705***@comcast.net>
wrote:
> In article
> <a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
>
> tek <kevind***@yahoo.com> wrote:
> >What command can I execute to find which PC is acting as the WINS
> >server in my LAN?
>
> If a network connection has been configured to use a WINS server,
> "ipconfig/all" will show the server's IP address.
>
> At the risk of stating what you already know: a typical workgroup
> network doesn't have a WINS server.  WINS usually requires a computer
> running a server operating system.

The \windows\system32\drivers\etc\hosts files on each PC do not
contain static IPs because the router is the DHCP server. What allows
me to ping by hostname if there is no WINS server available? I must be
missing something in the way NetBIOS works.
Author
15 Nov 2007 2:02 PM
tek
On Nov 15, 8:32 am, tek <kevind***@yahoo.com> wrote:
Show quote
> On Nov 15, 3:21 am, "Steve Winograd [MVP]" <bc0705***@comcast.net>
> wrote:
>
> > In article
> > <a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
>
> > tek <kevind***@yahoo.com> wrote:
> > >What command can I execute to find which PC is acting as the WINS
> > >server in my LAN?
>
> > If a network connection has been configured to use a WINS server,
> > "ipconfig/all" will show the server's IP address.
>
> > At the risk of stating what you already know: a typical workgroup
> > network doesn't have a WINS server.  WINS usually requires a computer
> > running a server operating system.
>
> The \windows\system32\drivers\etc\hosts files on each PC do not
> contain static IPs because the router is the DHCP server. What allows
> me to ping by hostname if there is no WINS server available? I must be
> missing something in the way NetBIOS works.


I downloaded the nblookup tool and these are the results I get when I
execute it. It's telling me that each PC is an acting WINS server and
I don't understand how that can be true. BTW, I should mention all the
PCs in the LAN are Windows XP Home SP2.

C:\Temp>nblookup -s pc1

pc1 resolved to 192.168.0.106
Default Server: 192.168.0.106

Recursion is on

Querying WINS Server: 192.168.0.106
NetBIOS Name: pc1
Suffix: 20

Name returned: PC1
Record type: Unique
IP Address: 192.168.0.106

....

C:\Temp>nblookup -s pc2

pc2 resolved to 192.168.0.105
Default Server: 192.168.0.105

Recursion is on

Querying WINS Server: 192.168.0.105
NetBIOS Name: pc2
Suffix: 20

Name returned: PC2
Record type: Unique
IP Address: 192.168.0.105
Author
15 Nov 2007 8:53 PM
Lanwench [MVP - Exchange]
tek <kevind***@yahoo.com> wrote:
Show quote
> On Nov 15, 8:32 am, tek <kevind***@yahoo.com> wrote:
>> On Nov 15, 3:21 am, "Steve Winograd [MVP]" <bc0705***@comcast.net>
>> wrote:
>>
>>> In article
>>> <a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
>>
>>> tek <kevind***@yahoo.com> wrote:
>>>> What command can I execute to find which PC is acting as the WINS
>>>> server in my LAN?
>>
>>> If a network connection has been configured to use a WINS server,
>>> "ipconfig/all" will show the server's IP address.
>>
>>> At the risk of stating what you already know: a typical workgroup
>>> network doesn't have a WINS server.  WINS usually requires a
>>> computer running a server operating system.
>>
>> The \windows\system32\drivers\etc\hosts files on each PC do not
>> contain static IPs because the router is the DHCP server. What allows
>> me to ping by hostname if there is no WINS server available? I must
>> be missing something in the way NetBIOS works.
>
>
> I downloaded the nblookup tool and these are the results I get when I
> execute it. It's telling me that each PC is an acting WINS server


No. Browser.

See http://www.chicagotech.net/netbios&wins.htm for some more help
explaining this all....

Show quote
> and
> I don't understand how that can be true. BTW, I should mention all the
> PCs in the LAN are Windows XP Home SP2.
>
> C:\Temp>nblookup -s pc1
>
> pc1 resolved to 192.168.0.106
> Default Server: 192.168.0.106
>
> Recursion is on
>
> Querying WINS Server: 192.168.0.106
> NetBIOS Name: pc1
> Suffix: 20
>
> Name returned: PC1
> Record type: Unique
> IP Address: 192.168.0.106
>
> ...
>
> C:\Temp>nblookup -s pc2
>
> pc2 resolved to 192.168.0.105
> Default Server: 192.168.0.105
>
> Recursion is on
>
> Querying WINS Server: 192.168.0.105
> NetBIOS Name: pc2
> Suffix: 20
>
> Name returned: PC2
> Record type: Unique
> IP Address: 192.168.0.105
Author
15 Nov 2007 9:12 PM
Steve Winograd [MVP]
In article
<1e032aaa-044b-4c94-83e2-3f9c39395***@b32g2000hsa.googlegroups.com>,
tek <kevind***@yahoo.com> wrote:
Show quote
>> > >What command can I execute to find which PC is acting as the WINS
>> > >server in my LAN?
>>
>> > If a network connection has been configured to use a WINS server,
>> > "ipconfig/all" will show the server's IP address.
>>
>> > At the risk of stating what you already know: a typical workgroup
>> > network doesn't have a WINS server.  WINS usually requires a computer
>> > running a server operating system.
>>
>> The \windows\system32\drivers\etc\hosts files on each PC do not
>> contain static IPs because the router is the DHCP server. What allows
>> me to ping by hostname if there is no WINS server available? I must be
>> missing something in the way NetBIOS works.
>
>I downloaded the nblookup tool and these are the results I get when I
>execute it. It's telling me that each PC is an acting WINS server and
>I don't understand how that can be true. BTW, I should mention all the
>PCs in the LAN are Windows XP Home SP2.
>
>C:\Temp>nblookup -s pc1
>
>pc1 resolved to 192.168.0.106
>Default Server: 192.168.0.106
>
>Recursion is on
>
>Querying WINS Server: 192.168.0.106
>NetBIOS Name: pc1
>Suffix: 20
>
>Name returned: PC1
>Record type: Unique
>IP Address: 192.168.0.106
>
>...
>
>C:\Temp>nblookup -s pc2
>
>pc2 resolved to 192.168.0.105
>Default Server: 192.168.0.105
>
>Recursion is on
>
>Querying WINS Server: 192.168.0.105
>NetBIOS Name: pc2
>Suffix: 20
>
>Name returned: PC2
>Record type: Unique
>IP Address: 192.168.0.105

I think that the results from running the NBLookup tool on your
network are misleading.  There is no WINS server in a Windows XP
workgroup network like yours.  I suspect that the WINS server that the
NBLookup identifies is the computer that was able to resolve the
computer name that you queried.  In a workgroup, that name resolution
is done using NetBIOS over TCP/IP, not using WINS.

With no WINS server, you can assign static IP addresses to all of the
computers and create an LMHosts file (not a Hosts file) on each
computer that specifies the mapping of NetBIOS names to IP addresses.

But neither WINS nor LMHosts should be necessary on a workgroup
network, unless the network has multiple IP subnets.

Why are you asking about WINS in the first place?  If something isn't
working right, there's probably a better solution.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see.  I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
Author
15 Nov 2007 11:37 PM
tek
Show quote
On Nov 15, 4:12 pm, "Steve Winograd [MVP]" <bc0705***@comcast.net>
wrote:
> In article
> <1e032aaa-044b-4c94-83e2-3f9c39395***@b32g2000hsa.googlegroups.com>,
>
>
>
>
>
> tek <kevind***@yahoo.com> wrote:
> >> > >What command can I execute to find which PC is acting as the WINS
> >> > >server in my LAN?
>
> >> > If a network connection has been configured to use a WINS server,
> >> > "ipconfig/all" will show the server's IP address.
>
> >> > At the risk of stating what you already know: a typical workgroup
> >> > network doesn't have a WINS server.  WINS usually requires a computer
> >> > running a server operating system.
>
> >> The \windows\system32\drivers\etc\hosts files on each PC do not
> >> contain static IPs because the router is the DHCP server. What allows
> >> me to ping by hostname if there is no WINS server available? I must be
> >> missing something in the way NetBIOS works.
>
> >I downloaded the nblookup tool and these are the results I get when I
> >execute it. It's telling me that each PC is an acting WINS server and
> >I don't understand how that can be true. BTW, I should mention all the
> >PCs in the LAN are Windows XP Home SP2.
>
> >C:\Temp>nblookup -s pc1
>
> >pc1 resolved to 192.168.0.106
> >Default Server: 192.168.0.106
>
> >Recursion is on
>
> >Querying WINS Server: 192.168.0.106
> >NetBIOS Name: pc1
> >Suffix: 20
>
> >Name returned: PC1
> >Record type: Unique
> >IP Address: 192.168.0.106
>
> >...
>
> >C:\Temp>nblookup -s pc2
>
> >pc2 resolved to 192.168.0.105
> >Default Server: 192.168.0.105
>
> >Recursion is on
>
> >Querying WINS Server: 192.168.0.105
> >NetBIOS Name: pc2
> >Suffix: 20
>
> >Name returned: PC2
> >Record type: Unique
> >IP Address: 192.168.0.105
>
> I think that the results from running the NBLookup tool on your
> network are misleading.  There is no WINS server in a Windows XP
> workgroup network like yours.  I suspect that the WINS server that the
> NBLookup identifies is the computer that was able to resolve the
> computer name that you queried.  In a workgroup, that name resolution
> is done using NetBIOS over TCP/IP, not using WINS.
>
> With no WINS server, you can assign static IP addresses to all of the
> computers and create an LMHosts file (not a Hosts file) on each
> computer that specifies the mapping of NetBIOS names to IP addresses.
>
> But neither WINS nor LMHosts should be necessary on a workgroup
> network, unless the network has multiple IP subnets.
>
> Why are you asking about WINS in the first place?  If something isn't
> working right, there's probably a better solution.
> --
> Best Wishes,
> Steve Winograd, MS-MVP (Windows Networking)
>
> Please post any reply as a follow-up message in the news group
> for everyone to see.  I'm sorry, but I don't answer questions
> addressed directly to me in E-mail or news groups.
>
> Microsoft Most Valuable Professional Programhttp://mvp.support.microsoft.com- Hide quoted text -
>
> - Show quoted text -

I just couldn't figure out how the ping by hostname was bale to work
when:
1. I'm using DHCP to acquire IPs from the router
2. The IPs are not in the hosts file
3. The IPs are not in the lmhost file
4. I didn't assign a PC to act as a WINS server
5. Only one PC of the four PCs in the LAN has the Computer Browser
service running

My TCP/IP settings for each PC has "Use NetBIOS from DHCP server"
selected. This must be the key to being able to ping by hostname?
The router being a Linksys BEFSR1 v3 router.
Author
15 Nov 2007 11:44 PM
Lanwench [MVP - Exchange]
tek <kevind***@yahoo.com> wrote:


<snipped for length>

>
> I just couldn't figure out how the ping by hostname was bale to work

Did you read the link I posted?


> when:
> 1. I'm using DHCP to acquire IPs from the router
> 2. The IPs are not in the hosts file
> 3. The IPs are not in the lmhost file
> 4. I didn't assign a PC to act as a WINS server
> 5. Only one PC of the four PCs in the LAN has the Computer Browser
> service running

Then it's going to be the master browser. If you don't have a WINS server I
suggest you set computer browser to automatic on all your computers.
>
> My TCP/IP settings for each PC has "Use NetBIOS from DHCP server"
> selected. This must be the key to being able to ping by hostname?

Actually, it means NetBIOS over TCP/IP is *enabled* on that computer because
you have a DHCP configured address, basically. Your router is not doing this
name resolution for you

If you don't have WINS or an internal DNS server and can ping a
computer/node by name, it's simply working via broadcast. Is that clearer
now?

> The router being a Linksys BEFSR1 v3 router.

Not relevant, tho.
Author
16 Nov 2007 1:30 AM
tek
On Nov 15, 6:44 pm, "Lanwench [MVP - Exchange]"
<lanwe***@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote:
Show quote
> tek <kevind***@yahoo.com> wrote:
>
> <snipped for length>
>
>
>
> > I just couldn't figure out how the ping by hostname was bale to work
>
> Did you read the link I posted?
>
> > when:
> > 1. I'm using DHCP to acquire IPs from the router
> > 2. The IPs are not in the hosts file
> > 3. The IPs are not in the lmhost file
> > 4. I didn't assign a PC to act as a WINS server
> > 5. Only one PC of the four PCs in the LAN has the Computer Browser
> > service running
>
> Then it's going to be the master browser. If you don't have a WINS server I
> suggest you set computer browser to automatic on all your computers.
>
>
>
> > My TCP/IP settings for each PC has "Use NetBIOS from DHCP server"
> > selected. This must be the key to being able to ping by hostname?
>
> Actually, it means NetBIOS over TCP/IP is *enabled* on that computer because
> you have a DHCP configured address, basically. Your router is not doing this
> name resolution for you
>
> If you don't have WINS or an internal DNS server and can ping a
> computer/node by name, it's simply working via broadcast. Is that clearer
> now?
>
> > The router being a Linksys BEFSR1 v3 router.
>
> Not relevant, tho.

Gotcha, Thanks
Author
16 Nov 2007 1:43 AM
Lanwench [MVP - Exchange]
tek <kevind***@yahoo.com> wrote:
Show quote
> On Nov 15, 6:44 pm, "Lanwench [MVP - Exchange]"
> <lanwe***@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote:
>> tek <kevind***@yahoo.com> wrote:
>>
>> <snipped for length>
>>
>>
>>
>>> I just couldn't figure out how the ping by hostname was bale to work
>>
>> Did you read the link I posted?
>>
>>> when:
>>> 1. I'm using DHCP to acquire IPs from the router
>>> 2. The IPs are not in the hosts file
>>> 3. The IPs are not in the lmhost file
>>> 4. I didn't assign a PC to act as a WINS server
>>> 5. Only one PC of the four PCs in the LAN has the Computer Browser
>>> service running
>>
>> Then it's going to be the master browser. If you don't have a WINS
>> server I suggest you set computer browser to automatic on all your
>> computers.
>>
>>
>>
>>> My TCP/IP settings for each PC has "Use NetBIOS from DHCP server"
>>> selected. This must be the key to being able to ping by hostname?
>>
>> Actually, it means NetBIOS over TCP/IP is *enabled* on that computer
>> because you have a DHCP configured address, basically. Your router
>> is not doing this name resolution for you
>>
>> If you don't have WINS or an internal DNS server and can ping a
>> computer/node by name, it's simply working via broadcast. Is that
>> clearer now?
>>
>>> The router being a Linksys BEFSR1 v3 router.
>>
>> Not relevant, tho.
>
> Gotcha, Thanks

No prob.
Author
15 Nov 2007 8:52 PM
Lanwench [MVP - Exchange]
tek <kevind***@yahoo.com> wrote:
Show quote
> On Nov 15, 3:21 am, "Steve Winograd [MVP]" <bc0705***@comcast.net>
> wrote:
>> In article
>> <a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
>>
>> tek <kevind***@yahoo.com> wrote:
>>> What command can I execute to find which PC is acting as the WINS
>>> server in my LAN?
>>
>> If a network connection has been configured to use a WINS server,
>> "ipconfig/all" will show the server's IP address.
>>
>> At the risk of stating what you already know: a typical workgroup
>> network doesn't have a WINS server.  WINS usually requires a computer
>> running a server operating system.
>
> The \windows\system32\drivers\etc\hosts files on each PC do not
> contain static IPs because the router is the DHCP server.

That's apples to oranges.....and note that hosts isn't for NetBIOS. That's
LMHOSTS.

> What allows
> me to ping by hostname if there is no WINS server available? I must be
> missing something in the way NetBIOS works.

NetBIOS is broadcast based. Without a WINS server (which you don't normally
have in a workgroup), your workstations are all participating in browser
elections and hollering at each other over the network. "Hey, have you seen
SERVER1? Oh, over there? Thanks."

WINS essentially shuts them up and says, "just check here when you want
NetBIOS name resolution." Your WINS server is usually your master browser -
when you have WINS, you can even stop & disable the computer browser service
on all the workstations. Without WINS, you need it running.
Author
16 Nov 2007 4:59 PM
Ron Lowe
"Lanwench [MVP - Exchange]"
<lanwe***@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote in message
Show quote
news:e4L6Dm8JIHA.4584@TK2MSFTNGP03.phx.gbl...
> tek <kevind***@yahoo.com> wrote:
>> On Nov 15, 3:21 am, "Steve Winograd [MVP]" <bc0705***@comcast.net>
>> wrote:
>>> In article
>>> <a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
>>>
>>> tek <kevind***@yahoo.com> wrote:
>>>> What command can I execute to find which PC is acting as the WINS
>>>> server in my LAN?
>>>
>>> If a network connection has been configured to use a WINS server,
>>> "ipconfig/all" will show the server's IP address.
>>>
>>> At the risk of stating what you already know: a typical workgroup
>>> network doesn't have a WINS server.  WINS usually requires a computer
>>> running a server operating system.
>>
>> The \windows\system32\drivers\etc\hosts files on each PC do not
>> contain static IPs because the router is the DHCP server.
>
> That's apples to oranges.....and note that hosts isn't for NetBIOS. That's
> LMHOSTS.
>
>> What allows
>> me to ping by hostname if there is no WINS server available? I must be
>> missing something in the way NetBIOS works.
>
> NetBIOS is broadcast based. Without a WINS server (which you don't
> normally have in a workgroup), your workstations are all participating in
> browser elections and hollering at each other over the network. "Hey, have
> you seen SERVER1? Oh, over there? Thanks."
>
> WINS essentially shuts them up and says, "just check here when you want
> NetBIOS name resolution." Your WINS server is usually your master
> browser - when you have WINS, you can even stop & disable the computer
> browser service on all the workstations. Without WINS, you need it
> running.
>


Hi, all.

I'd just like to add some clarification, if I may :-)

The default name resolution sequence for windows XP is:

1) DNS:
    check local DNS cache;
    check hosts file;
    query DNS server ( if configured);

if that fails, revert back to

2)NetBIOS:
   Check Netbios name cache;
   check LMHOSTS file;
   Query WINS server ( if configured );
   Try Netbios broadcasts.

On a win2k or above domain, the DNS server will be where it succeeds.
In a serverless workgroup, it will fall all the way down to the method of
last resort, Netbios broadcasts.
Here, all machines listen out for broadcasts containing their name, and
respond to the broadcaster with their IP address.

The exact priority within netbios ( wins / brodcast ) can be changed using a
parameter called NodeType.
What I described was the default, which is generally fine.

For name resolution, the browser does not come into it.
You can shut the browser system totally down on all the machines, and
Netbios broadcast name resolution will still work.

The browser's job is to maintain a list of machine names only, not IP
addresses.
This is only used to populate the 'browse list', which you see when you
'show workgroup computers', or do a 'net view'.
It also uses Netbios broadcasts to operate.

Hope this is illuminating!

Best Regards,
Ron Lowe
Author
16 Nov 2007 6:27 PM
Lanwench [MVP - Exchange]
Ron Lowe <ronATlowe-famlyDOTmeDOTukSPURIOUS> wrote:
Show quote
> "Lanwench [MVP - Exchange]"
> <lanwe***@heybuddy.donotsendme.unsolicitedmailatyahoo.com> wrote in
> message news:e4L6Dm8JIHA.4584@TK2MSFTNGP03.phx.gbl...
>> tek <kevind***@yahoo.com> wrote:
>>> On Nov 15, 3:21 am, "Steve Winograd [MVP]" <bc0705***@comcast.net>
>>> wrote:
>>>> In article
>>>> <a9048174-796e-4e4f-9445-b6d656e7f***@e4g2000hsg.googlegroups.com>,
>>>>
>>>> tek <kevind***@yahoo.com> wrote:
>>>>> What command can I execute to find which PC is acting as the WINS
>>>>> server in my LAN?
>>>>
>>>> If a network connection has been configured to use a WINS server,
>>>> "ipconfig/all" will show the server's IP address.
>>>>
>>>> At the risk of stating what you already know: a typical workgroup
>>>> network doesn't have a WINS server.  WINS usually requires a
>>>> computer running a server operating system.
>>>
>>> The \windows\system32\drivers\etc\hosts files on each PC do not
>>> contain static IPs because the router is the DHCP server.
>>
>> That's apples to oranges.....and note that hosts isn't for NetBIOS.
>> That's LMHOSTS.
>>
>>> What allows
>>> me to ping by hostname if there is no WINS server available? I must
>>> be missing something in the way NetBIOS works.
>>
>> NetBIOS is broadcast based. Without a WINS server (which you don't
>> normally have in a workgroup), your workstations are all
>> participating in browser elections and hollering at each other over
>> the network. "Hey, have you seen SERVER1? Oh, over there? Thanks."
>>
>> WINS essentially shuts them up and says, "just check here when you
>> want NetBIOS name resolution." Your WINS server is usually your
>> master browser - when you have WINS, you can even stop & disable the
>> computer browser service on all the workstations. Without WINS, you
>> need it running.
>>
>
>
> Hi, all.
>
> I'd just like to add some clarification, if I may :-)
>
> The default name resolution sequence for windows XP is:
>
> 1) DNS:
>    check local DNS cache;
>    check hosts file;
>    query DNS server ( if configured);
>
> if that fails, revert back to
>
> 2)NetBIOS:
>   Check Netbios name cache;
>   check LMHOSTS file;
>   Query WINS server ( if configured );
>   Try Netbios broadcasts.
>
> On a win2k or above domain, the DNS server will be where it succeeds.
> In a serverless workgroup, it will fall all the way down to the
> method of last resort, Netbios broadcasts.
> Here, all machines listen out for broadcasts containing their name,
> and respond to the broadcaster with their IP address.
>
> The exact priority within netbios ( wins / brodcast ) can be changed
> using a parameter called NodeType.
> What I described was the default, which is generally fine.
>
> For name resolution, the browser does not come into it.
> You can shut the browser system totally down on all the machines, and
> Netbios broadcast name resolution will still work.
>
> The browser's job is to maintain a list of machine names only, not IP
> addresses.
> This is only used to populate the 'browse list', which you see when
> you 'show workgroup computers', or do a 'net view'.
> It also uses Netbios broadcasts to operate.
>
> Hope this is illuminating!
>
> Best Regards,
> Ron Lowe

Thanks for the clarification, Ron.

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