DNS resolving !!

Dear All,

I need your help in a DNS resolving problem , which can be summarized as
follow
we have in our company and DNS server on windows server 2003 that is working
so good, but I found some strange issue which is there is a web sites that I
can resolve it by any given DNS server but I can not resolve it by my DNS

can any one tell me WHY a DNS server resolve some web sites and can not
resolve others


thanks a lot

Amr M. Salah




Amr Salah

Hello Amr,

I assume your network is in a private ip range? Then by default your internal
DNS can only resolve names from your internal network. Any other request
should be forwarded to your ISP's DNS server, then this server makes the
resolving and provides the information back.

Best regards

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

> Dear All,
>
> I need your help in a DNS resolving problem , which can be summarized
> as
> follow
> we have in our company and DNS server on windows server 2003 that is
> working
> so good, but I found some strange issue which is there is a web sites
> that I
> can resolve it by any given DNS server but I can not resolve it by my
> DNS
> can any one tell me WHY a DNS server resolve some web sites and can
> not resolve others
>
> thanks a lot
>
> Amr M. Salah
>

Hello Amr,

Maybe i did not understand your problem correct. Your internal server can
not resolve external addresses. This can only be done by the external DNS
servers. And these will froward the answers to your internal dns server which
will passw the info to the clients. Mazbe give a more detailed example witha
specific website, where you have problems to access.

Best regards

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

> Hello sir,
> Thanks for your replay
> your assumtion is right , but i have couple of external DNSs that act
> the same as ISPs DNSs, the internal DNS resolve the internal names ,
> if failed this mean it is an external name then it forwards it to the
> external DNSs to resolve it from the internet
>
> "Myweb" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) .com...
>
>> Hello Amr,
>>
>> I assume your network is in a private ip range? Then by default your
>> internal DNS can only resolve names from your internal network. Any
>> other request should be forwarded to your ISP's DNS server, then this
>> server makes the resolving and provides the information back.
>>
>> Best regards
>>
>> Myweb
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers no rights.
>>> Dear All,
>>>
>>> I need your help in a DNS resolving problem , which can be
>>> summarized
>>> as
>>> follow
>>> we have in our company and DNS server on windows server 2003 that is
>>> working
>>> so good, but I found some strange issue which is there is a web
>>> sites
>>> that I
>>> can resolve it by any given DNS server but I can not resolve it by
>>> my
>>> DNS
>>> can any one tell me WHY a DNS server resolve some web sites and can
>>> not resolve others
>>> thanks a lot
>>>
>>> Amr M. Salah
>>>

Hello sir,
Thanks for your replay

your assumtion is right , but i have couple of external DNSs that act the
same as ISPs DNSs, the internal DNS resolve the internal names , if failed
this mean it is an external name then it forwards it to the external DNSs to
resolve it from the internet


"Myweb" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) .com...
> Hello Amr,
>
> I assume your network is in a private ip range? Then by default your
> internal DNS can only resolve names from your internal network. Any other
> request should be forwarded to your ISP's DNS server, then this server
> makes the resolving and provides the information back.
>
> Best regards
>
> Myweb
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
>
>> Dear All,
>>
>> I need your help in a DNS resolving problem , which can be summarized
>> as
>> follow
>> we have in our company and DNS server on windows server 2003 that is
>> working
>> so good, but I found some strange issue which is there is a web sites
>> that I
>> can resolve it by any given DNS server but I can not resolve it by my
>> DNS
>> can any one tell me WHY a DNS server resolve some web sites and can
>> not resolve others
>>
>> thanks a lot
>>
>> Amr M. Salah
>>
>
>

Thanks for your help ,
i solved the problem , just be restart the DNSserver service

thanks alot again


"Myweb" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) .com...
> Hello Amr,
>
> Maybe i did not understand your problem correct. Your internal server can
> not resolve external addresses. This can only be done by the external DNS
> servers. And these will froward the answers to your internal dns server
> which will passw the info to the clients. Mazbe give a more detailed
> example witha specific website, where you have problems to access.
>
> Best regards
>
> Myweb
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
>
>> Hello sir,
>> Thanks for your replay
>> your assumtion is right , but i have couple of external DNSs that act
>> the same as ISPs DNSs, the internal DNS resolve the internal names ,
>> if failed this mean it is an external name then it forwards it to the
>> external DNSs to resolve it from the internet
>>
>> "Myweb" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed) .com...
>>
>>> Hello Amr,
>>>
>>> I assume your network is in a private ip range? Then by default your
>>> internal DNS can only resolve names from your internal network. Any
>>> other request should be forwarded to your ISP's DNS server, then this
>>> server makes the resolving and provides the information back.
>>>
>>> Best regards
>>>
>>> Myweb
>>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>>> confers no rights.
>>>> Dear All,
>>>>
>>>> I need your help in a DNS resolving problem , which can be
>>>> summarized
>>>> as
>>>> follow
>>>> we have in our company and DNS server on windows server 2003 that is
>>>> working
>>>> so good, but I found some strange issue which is there is a web
>>>> sites
>>>> that I
>>>> can resolve it by any given DNS server but I can not resolve it by
>>>> my
>>>> DNS
>>>> can any one tell me WHY a DNS server resolve some web sites and can
>>>> not resolve others
>>>> thanks a lot
>>>>
>>>> Amr M. Salah
>>>>
>
>