How To Resolve PUBLIC FQDN to INTERNAL PRIVATE IP address

Greetings!

I have a situation where I have a Linux box which is not part of AD. It
hosts a web-site and has a FQDN. I do 1 to 1 NAT through my firewall, so
this machine has a private IP address internally, but all web requests from
the public network are forwarded to it just fine.

The problem comes in when workstations that are on the LAN try to get to it.
If I go to a workstation and put in the private IP of the Linux box (e.g.
10.1.3.100) in a web-browser, then it finds the Linux box with no problem at
all. However, if I try to put in the FQDN (e.g. www.linuxbox.com) or the
public IP address, then the web page never comes up and eventually it just
times out.

What I'd like to do is to put an entry into my Server 2003 DNS server that
will route all internal traffic that's trying to get to the FQDN back to the
Linux box's private IP address. Thus far I've had no luck.

Is this something that's doable? There is no entry for the box, as it isn't
part of the AD... I'm a little stuck at trying to add entries that aren't in
the AD.

Any help is MOST appreciated!

Joe

Hello Joe,

Creating an A record named www with the ip address of the webserver should
help.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Greetings!
>
> I have a situation where I have a Linux box which is not part of AD.
> It hosts a web-site and has a FQDN. I do 1 to 1 NAT through my
> firewall, so this machine has a private IP address internally, but all
> web requests from the public network are forwarded to it just fine.
>
> The problem comes in when workstations that are on the LAN try to get
> to it. If I go to a workstation and put in the private IP of the Linux
> box (e.g. 10.1.3.100) in a web-browser, then it finds the Linux box
> with no problem at all. However, if I try to put in the FQDN (e.g.
> www.linuxbox.com) or the public IP address, then the web page never
> comes up and eventually it just times out.
>
> What I'd like to do is to put an entry into my Server 2003 DNS server
> that will route all internal traffic that's trying to get to the FQDN
> back to the Linux box's private IP address. Thus far I've had no
> luck.
>
> Is this something that's doable? There is no entry for the box, as it
> isn't part of the AD... I'm a little stuck at trying to add entries
> that aren't in the AD.
>
> Any help is MOST appreciated!
>
> Joe
>

As I'm somewhat of a neophyte in this area, could you flesh out some more
detail about how to do what you said for me?

Danke,

Joe


"Meinolf Weber [MVP-DS]" <meiweb(nospam)@gmx.de> wrote in message
news: .com...
> Hello Joe,
>
> Creating an A record named www with the ip address of the webserver should
> help.
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>> Greetings!
>>
>> I have a situation where I have a Linux box which is not part of AD.
>> It hosts a web-site and has a FQDN. I do 1 to 1 NAT through my
>> firewall, so this machine has a private IP address internally, but all
>> web requests from the public network are forwarded to it just fine.
>>
>> The problem comes in when workstations that are on the LAN try to get
>> to it. If I go to a workstation and put in the private IP of the Linux
>> box (e.g. 10.1.3.100) in a web-browser, then it finds the Linux box
>> with no problem at all. However, if I try to put in the FQDN (e.g.
>> www.linuxbox.com) or the public IP address, then the web page never
>> comes up and eventually it just times out.
>>
>> What I'd like to do is to put an entry into my Server 2003 DNS server
>> that will route all internal traffic that's trying to get to the FQDN
>> back to the Linux box's private IP address. Thus far I've had no
>> luck.
>>
>> Is this something that's doable? There is no entry for the box, as it
>> isn't part of the AD... I'm a little stuck at trying to add entries
>> that aren't in the AD.
>>
>> Any help is MOST appreciated!
>>
>> Joe
>>
>
>

Hello Joe,

In DNS management console open your forward lookup zone, righclick and choose
new host and type as name www and the ip address of your internal webserver
ip address.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> As I'm somewhat of a neophyte in this area, could you flesh out some
> more detail about how to do what you said for me?
>
> Danke,
>
> Joe
>
> "Meinolf Weber [MVP-DS]" <meiweb(nospam)@gmx.de> wrote in message
> news: .com...
>
>> Hello Joe,
>>
>> Creating an A record named www with the ip address of the webserver
>> should help.
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>> Greetings!
>>>
>>> I have a situation where I have a Linux box which is not part of AD.
>>> It hosts a web-site and has a FQDN. I do 1 to 1 NAT through my
>>> firewall, so this machine has a private IP address internally, but
>>> all web requests from the public network are forwarded to it just
>>> fine.
>>>
>>> The problem comes in when workstations that are on the LAN try to
>>> get to it. If I go to a workstation and put in the private IP of the
>>> Linux box (e.g. 10.1.3.100) in a web-browser, then it finds the
>>> Linux box with no problem at all. However, if I try to put in the
>>> FQDN (e.g. www.linuxbox.com) or the public IP address, then the web
>>> page never comes up and eventually it just times out.
>>>
>>> What I'd like to do is to put an entry into my Server 2003 DNS
>>> server that will route all internal traffic that's trying to get to
>>> the FQDN back to the Linux box's private IP address. Thus far I've
>>> had no luck.
>>>
>>> Is this something that's doable? There is no entry for the box, as
>>> it isn't part of the AD... I'm a little stuck at trying to add
>>> entries that aren't in the AD.
>>>
>>> Any help is MOST appreciated!
>>>
>>> Joe
>>>