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Group:  English: Windows Server » microsoft.public.windows.server.dns
Thread: DNS or DHCP

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DNS or DHCP
Alzana 7/7/2007 5:36:01 PM
Hello,

i hava AD W2K with DNS and DHCP. Noticed that i couldnt connect remotely to
some pc and after check in DNS there are some IPs associated to up to 3
workstations. This is occurring for about 10 IPs, all associated to more than
one PC.
In DHCP all PCs have one IP. Some IPs though have no associated computer name.
Funny enough nobody seems to have problems with network applications.
I could not connect to a shre drive on a workstation as No Permission (but i
am admin)
tks for help
Alzana
Re: DNS or DHCP
Myweb <meiweb[ at ]gmx.de> 7/7/2007 6:16:07 PM
Hello Alzana,

DNS entries will sometimes not be removed from the list, if the workstations
will be powered off instead of shutdown. You can configure Scavenging on
the server and your zones, so DNS will remove entries itself in your configured
time frames.

For you're sharing problem please give also the Sharing and NTFS permissions
from the folder.

Best regards

Myweb
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.

[Quoted Text]
> Hello,
>
> i hava AD W2K with DNS and DHCP. Noticed that i couldnt connect
> remotely to
> some pc and after check in DNS there are some IPs associated to up to
> 3
> workstations. This is occurring for about 10 IPs, all associated to
> more than
> one PC.
> In DHCP all PCs have one IP. Some IPs though have no associated
> computer name.
> Funny enough nobody seems to have problems with network applications.
> I could not connect to a shre drive on a workstation as No Permission
> (but i
> am admin)
> tks for help
> Alzana

Re: DNS or DHCP
Alzana 7/7/2007 7:04:01 PM
Hello Myweb,

tks for you input also on this issue. I can't bet on the way wks are
shutdown but you mean powered off as just unplug the cable? No users would do
that i guess...
I tried anyway to force scavenging but it didnt change the situation


"Myweb" wrote:

[Quoted Text]
> Hello Alzana,
>
> DNS entries will sometimes not be removed from the list, if the workstations
> will be powered off instead of shutdown. You can configure Scavenging on
> the server and your zones, so DNS will remove entries itself in your configured
> time frames.
>
> For you're sharing problem please give also the Sharing and NTFS permissions
> from the folder.
>
> Best regards
>
> Myweb
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
>
> > Hello,
> >
> > i hava AD W2K with DNS and DHCP. Noticed that i couldnt connect
> > remotely to
> > some pc and after check in DNS there are some IPs associated to up to
> > 3
> > workstations. This is occurring for about 10 IPs, all associated to
> > more than
> > one PC.
> > In DHCP all PCs have one IP. Some IPs though have no associated
> > computer name.
> > Funny enough nobody seems to have problems with network applications.
> > I could not connect to a shre drive on a workstation as No Permission
> > (but i
> > am admin)
> > tks for help
> > Alzana
>
>
>
Re: DNS or DHCP
Alzana 7/8/2007 3:10:04 PM
Hello MyWeb,
the two DC are main and secondary DNS servers
Then i add as additional 2 Unix application servers on which i have no
control at all but anyway all 4 are in the local network

thanks
Alzana


"Myweb" wrote:

[Quoted Text]
> Hello Alzana,
>
> I mean push the power button so long that the workstation is off instead
> START SHUTDOWN.
>
> I have had the same problem with multiple DNS entries and the configuration
> of scavenging works very fine. Did your clients only use your internal DNS
> or did you also configure an internet DNS server?
>
> Best regards
>
> Myweb
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
>
> > Hello Myweb,
> >
> > tks for you input also on this issue. I can't bet on the way wks are
> > shutdown but you mean powered off as just unplug the cable? No users
> > would do
> > that i guess...
> > I tried anyway to force scavenging but it didnt change the situation
> > "Myweb" wrote:
> >
> >> Hello Alzana,
> >>
> >> DNS entries will sometimes not be removed from the list, if the
> >> workstations will be powered off instead of shutdown. You can
> >> configure Scavenging on the server and your zones, so DNS will remove
> >> entries itself in your configured time frames.
> >>
> >> For you're sharing problem please give also the Sharing and NTFS
> >> permissions from the folder.
> >>
> >> Best regards
> >>
> >> Myweb
> >> Disclaimer: This posting is provided "AS IS" with no warranties, and
> >> confers
> >> no rights.
> >>> Hello,
> >>>
> >>> i hava AD W2K with DNS and DHCP. Noticed that i couldnt connect
> >>> remotely to
> >>> some pc and after check in DNS there are some IPs associated to up
> >>> to
> >>> 3
> >>> workstations. This is occurring for about 10 IPs, all associated to
> >>> more than
> >>> one PC.
> >>> In DHCP all PCs have one IP. Some IPs though have no associated
> >>> computer name.
> >>> Funny enough nobody seems to have problems with network
> >>> applications.
> >>> I could not connect to a shre drive on a workstation as No
> >>> Permission
> >>> (but i
> >>> am admin)
> >>> tks for help
> >>> Alzana
>
>
>
Re: DNS or DHCP
Alzana 7/8/2007 5:16:01 PM
Hello MyWeb,

i think i found a post here that might relate to my prob (which also tells
me why you mentioned the shutdown thingy)
Here i copy the info

QUOTE
This is more common for the reverse lookup zone than the forward lookup
zone. Because the record owner for the same PTR IP may be a different
machine. One machine cannot update or delete a record created by another
machine. So if the PTR is owned by one machine that is suddenly disconnected
the record cannot be updated or removed by the next machine to get the same
IP address and therefore creates another PTR for the IP number. DHCP cannot
remove the record either because it does not own the record but it can give
the IP to another machine. I've seen that this more common if the PTR is
owned by a laptop.

The resolution, is to have DNS more regularly scavenge old records or make
the DHCP server the owner of all records by setting it to always update
records. I don't know of any way you can force laptop users to always run
ipconfig /release before disconnecting from the laptop.
You can add Microsoft option 002 to release DHCP lease on shutdown which
may help. Since I added this option DHCP removes its registrations at
shutdown.

UNQUOTE

what do you think

"Alzana" wrote:

[Quoted Text]
> Hello MyWeb,
> the two DC are main and secondary DNS servers
> Then i add as additional 2 Unix application servers on which i have no
> control at all but anyway all 4 are in the local network
>
> thanks
> Alzana
>
>
> "Myweb" wrote:
>
> > Hello Alzana,
> >
> > I mean push the power button so long that the workstation is off instead
> > START SHUTDOWN.
> >
> > I have had the same problem with multiple DNS entries and the configuration
> > of scavenging works very fine. Did your clients only use your internal DNS
> > or did you also configure an internet DNS server?
> >
> > Best regards
> >
> > Myweb
> > Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> > no rights.
> >
> > > Hello Myweb,
> > >
> > > tks for you input also on this issue. I can't bet on the way wks are
> > > shutdown but you mean powered off as just unplug the cable? No users
> > > would do
> > > that i guess...
> > > I tried anyway to force scavenging but it didnt change the situation
> > > "Myweb" wrote:
> > >
> > >> Hello Alzana,
> > >>
> > >> DNS entries will sometimes not be removed from the list, if the
> > >> workstations will be powered off instead of shutdown. You can
> > >> configure Scavenging on the server and your zones, so DNS will remove
> > >> entries itself in your configured time frames.
> > >>
> > >> For you're sharing problem please give also the Sharing and NTFS
> > >> permissions from the folder.
> > >>
> > >> Best regards
> > >>
> > >> Myweb
> > >> Disclaimer: This posting is provided "AS IS" with no warranties, and
> > >> confers
> > >> no rights.
> > >>> Hello,
> > >>>
> > >>> i hava AD W2K with DNS and DHCP. Noticed that i couldnt connect
> > >>> remotely to
> > >>> some pc and after check in DNS there are some IPs associated to up
> > >>> to
> > >>> 3
> > >>> workstations. This is occurring for about 10 IPs, all associated to
> > >>> more than
> > >>> one PC.
> > >>> In DHCP all PCs have one IP. Some IPs though have no associated
> > >>> computer name.
> > >>> Funny enough nobody seems to have problems with network
> > >>> applications.
> > >>> I could not connect to a shre drive on a workstation as No
> > >>> Permission
> > >>> (but i
> > >>> am admin)
> > >>> tks for help
> > >>> Alzana
> >
> >
> >

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