Newbie Question

  • Thread starter Thread starter Camilo Andres Arango
  • Start date Start date
C

Camilo Andres Arango

Hello everybody.

I have a newbie question regarding Microsoft DNS server integrated
with Active Directory. I have a server with multiple IP adresses. For
each address, I created a DNS record entry with a different name. The
idea is that the machine can answer to different names depending on
the IP asked. Example:
192.168.0.1 --> VODKA (The real machine name)
192.168.0.2 --> NAME2 (created manually on the DNS server)
192.168.0.3 --> NAME3 (created manually on the DNS server)

Now the problem is that the DNS server has automatically added record
entries for the real machine name (VODKA) to all the other IP
addresses:
192.168.0.2 --> VODKA
192.168.0.3 --> VODKA
ETC.

So now when I ping vodka, the answer comes from the last IP address
the machine has assigned, which is 192.168.0.10.

What should I do so that the DNS server understands that each IP
address should correspond to a different name?

Any help would be appreciated. I have deleted the wrong DNS records
and some time later they're back. I have stoped DNS Dinamyc update,
but anyway they come back. This solution anyway, could not be
appropiated because we have also a DHCP server and workstations change
their IP addresses with frequency, so the DNS should be updated
automatically. We relay entirely on DNS for workstation name
resolution.


The idea on this is because I need to have websites that can't be
created like virtual directories and I don't want to use different
ports on IIS. Its easier to my users to access each site this way:
http://name1.taller or
http://name2.taller (my domain name is taller)

rather than http://vodka.taller:8787 or some other strange port
number.

It did work fine until last week. I don't know exactly what changed,
apart from installing Service PAck 4 and patching the system against
the blaster vulnerability.

When doing a nslookup I receive:

Name: vodka.taller
Address: 192.168.0.1, 192.168.0.2, 192.168.03, 192.168.04,
192.168.0.5, 192.168.0.6, 192.168.0.7, 192.168.0.8, 192.168.0.9,
192.168.0.10

When I delete the records on the DNS, I receive the correct answer but
it only lasts some time...

Best regards,


Camilo Arango
 
In
Camilo Andres Arango said:
Hello everybody.

I have a newbie question regarding Microsoft DNS server integrated
with Active Directory. I have a server with multiple IP adresses. For
each address, I created a DNS record entry with a different name. The
idea is that the machine can answer to different names depending on
the IP asked. Example:
192.168.0.1 --> VODKA (The real machine name)
192.168.0.2 --> NAME2 (created manually on the DNS server)
192.168.0.3 --> NAME3 (created manually on the DNS server)

Now the problem is that the DNS server has automatically added record
entries for the real machine name (VODKA) to all the other IP
addresses:
192.168.0.2 --> VODKA
192.168.0.3 --> VODKA
ETC.

So now when I ping vodka, the answer comes from the last IP address
the machine has assigned, which is 192.168.0.10.

What should I do so that the DNS server understands that each IP
address should correspond to a different name?

Any help would be appreciated. I have deleted the wrong DNS records
and some time later they're back. I have stoped DNS Dinamyc update,
but anyway they come back. This solution anyway, could not be
appropiated because we have also a DHCP server and workstations change
their IP addresses with frequency, so the DNS should be updated
automatically. We relay entirely on DNS for workstation name
resolution.


The idea on this is because I need to have websites that can't be
created like virtual directories and I don't want to use different
ports on IIS. Its easier to my users to access each site this way:
http://name1.taller or
http://name2.taller (my domain name is taller)

rather than http://vodka.taller:8787 or some other strange port
number.

It did work fine until last week. I don't know exactly what changed,
apart from installing Service PAck 4 and patching the system against
the blaster vulnerability.

When doing a nslookup I receive:

Name: vodka.taller
Address: 192.168.0.1, 192.168.0.2, 192.168.03, 192.168.04,
192.168.0.5, 192.168.0.6, 192.168.0.7, 192.168.0.8, 192.168.0.9,
192.168.0.10

When I delete the records on the DNS, I receive the correct answer but
it only lasts some time...

Best regards,


Camilo Arango
Click to expand...

Your domain name "taller" is a single label domain name which is a problem
with Win2kSP4 and XP. You must add a registry entry from the below KB
article to allow these machines to register in a single label name.
300684 - Information About Configuring Windows 2000 for Domains with
Single-Label DNS Names
http://support.microsoft.com/default.aspx?scid=kb;en-us;300684&FR=1

That being said DNS Will create a host record for the machine host name for
each address that DNS listens on. You should set DNS to listen only on the
IP addresses that you want a record for the machine host name to point to.

So for as IIS you only need one IP for all websites that don't use SSL then
you create the host record for the web site name and point to the IP
address. i.e. site1.taller, site2.taller and so on and give these records
the IP address that IIS is listening on.
Then in IIS on the web site properties give each site a host header of
site1.taller, site2.taller and so on reflecting the site's name.
 
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