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Subject Author Date
Windows Server 2003 R2 Patrick Brydone 03-10-2007
Posted by Patrick Brydone on March 10, 2007, 10:20 am
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I have a strange problem that I can't sort out. I manage an Internet site
(www.britishschoolislamabad.coM). I also manage a Windows 2003 network (XP
clients). The Windows 2003 domain name has been set at
britishschoolislamabad.com. The server installation went without any
problems and the client computers can log onto the domain without any
problems. The strange thing is that none of the clients (including the
server) cannot access our own site (www.britishschoolislamabad.com). When I
type in the URL it gos into a live search and comes back with "Page cannot be
displayed". I can access all other Internet sites/pages with no problems at
all. I'm wondering if by mistake, I've locked this site out in AD. I have
looked everywhere (as best as I can) but can't find anything. I have even
removed AD and reinstalled it but still no luck. As soon as I remove any of
the workstations from the domain and use it as a stand-alone, I can access
the site which leads me to beleive that it has something to do with a Policy
setting. Grateful for any help or advice on how to cure this. Needless to
say, it's quite urgent. What use having our own web site, it we can't access
it from our own domain. Many thanks
--
Patrick Brydone

Posted by Roger Abell [MVP] on March 10, 2007, 12:21 pm
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not really a security issue Patrick

When you selected the Windows domain to have name
britishschoolislamabad.com the AD setup defined a DNS
zone in the DNS services on the domain controller by that
DNS domain name. All machines in your domain MUST
use that DNS server (i.e. in their Tcp/Ip settings have that
and only that as their DNS server).

Now, for that to work, your DNS server must either be
able to resolve outside names (by use of root hints or by
having your ISP's DNS server defined as a forwarder).

However, since you have a britishschoolislamabad.com
DNS zone (and must for AD support) the outside zone by
the same name will never get used by machines in your
AD domain. So, you need to add records to your verision
of the britishschoolislamabad.com for outside resources,
such as adding an A host record with name www and
IP 205.209.114.110 at which point your clients will be
able to get to the external website. If your website is
actually internal and the 205.209.114.110 is just a public
access point that proxies to the webserver, you might
what to consider using the internal site access IP instead
of the public.
You will need to similarly add records to the internal
DNS zone for any other external resources with names
ending in britishschoolislamabad.com

For future reference this should have been in newsgroup
microsoft.public.windows.server.dns


>I have a strange problem that I can't sort out. I manage an Internet site
> (www.britishschoolislamabad.coM). I also manage a Windows 2003 network
> (XP
> clients). The Windows 2003 domain name has been set at
> britishschoolislamabad.com. The server installation went without any
> problems and the client computers can log onto the domain without any
> problems. The strange thing is that none of the clients (including the
> server) cannot access our own site (www.britishschoolislamabad.com). When
> I
> type in the URL it gos into a live search and comes back with "Page cannot
> be
> displayed". I can access all other Internet sites/pages with no problems
> at
> all. I'm wondering if by mistake, I've locked this site out in AD. I
> have
> looked everywhere (as best as I can) but can't find anything. I have even
> removed AD and reinstalled it but still no luck. As soon as I remove any
> of
> the workstations from the domain and use it as a stand-alone, I can access
> the site which leads me to beleive that it has something to do with a
> Policy
> setting. Grateful for any help or advice on how to cure this. Needless
> to
> say, it's quite urgent. What use having our own web site, it we can't
> access
> it from our own domain. Many thanks
> --
> Patrick Brydone



Posted by Patrick Brydone on March 11, 2007, 1:56 am
Please log in for more thread options
Many thanks for your help. I'll give it a go tomorrow and let you know how I
make out.
--
Patrick Brydone


"Roger Abell [MVP]" wrote:

> not really a security issue Patrick
>
> When you selected the Windows domain to have name
> britishschoolislamabad.com the AD setup defined a DNS
> zone in the DNS services on the domain controller by that
> DNS domain name. All machines in your domain MUST
> use that DNS server (i.e. in their Tcp/Ip settings have that
> and only that as their DNS server).
>
> Now, for that to work, your DNS server must either be
> able to resolve outside names (by use of root hints or by
> having your ISP's DNS server defined as a forwarder).
>
> However, since you have a britishschoolislamabad.com
> DNS zone (and must for AD support) the outside zone by
> the same name will never get used by machines in your
> AD domain. So, you need to add records to your verision
> of the britishschoolislamabad.com for outside resources,
> such as adding an A host record with name www and
> IP 205.209.114.110 at which point your clients will be
> able to get to the external website. If your website is
> actually internal and the 205.209.114.110 is just a public
> access point that proxies to the webserver, you might
> what to consider using the internal site access IP instead
> of the public.
> You will need to similarly add records to the internal
> DNS zone for any other external resources with names
> ending in britishschoolislamabad.com
>
> For future reference this should have been in newsgroup
> microsoft.public.windows.server.dns
>
>
> >I have a strange problem that I can't sort out. I manage an Internet site
> > (www.britishschoolislamabad.coM). I also manage a Windows 2003 network
> > (XP
> > clients). The Windows 2003 domain name has been set at
> > britishschoolislamabad.com. The server installation went without any
> > problems and the client computers can log onto the domain without any
> > problems. The strange thing is that none of the clients (including the
> > server) cannot access our own site (www.britishschoolislamabad.com). When
> > I
> > type in the URL it gos into a live search and comes back with "Page cannot
> > be
> > displayed". I can access all other Internet sites/pages with no problems
> > at
> > all. I'm wondering if by mistake, I've locked this site out in AD. I
> > have
> > looked everywhere (as best as I can) but can't find anything. I have even
> > removed AD and reinstalled it but still no luck. As soon as I remove any
> > of
> > the workstations from the domain and use it as a stand-alone, I can access
> > the site which leads me to beleive that it has something to do with a
> > Policy
> > setting. Grateful for any help or advice on how to cure this. Needless
> > to
> > say, it's quite urgent. What use having our own web site, it we can't
> > access
> > it from our own domain. Many thanks
> > --
> > Patrick Brydone
>
>
>

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