Application Connection Issue - DNS Issue

[Guest]

We have an application on are network that use (ODBC for cold application). When we log onto the application the initial connection is very slow and it takes about 30-60 seconds to log on. Once we have logged onto the application, I can browse the data without any delays. It seems that that problem exist only with Windows NT 4.0, and not with Windows 2000 or XP. We are running Active Directory on our network, which resolves DNS. We also have a second DNS zone. Our servers have records in both zones along with associate PTR records. We checked to make sure that the name and IP address of the COLD server are in the DNS tables. We did a NSLOOKUP by IP address and the name and address of the COLD Server reply with the correct network information. If we put in the name of the COLD Server an error messages comes back with a DNS request time out, can’t find COLD Server.

 

[Ace Fekay [MVP]]

In

We have an application on are network that use (ODBC for cold
application). When we log onto the application the initial connection
is very slow and it takes about 30-60 seconds to log on. Once we have
logged onto the application, I can browse the data without any
delays. It seems that that problem exist only with Windows NT 4.0,
and not with Windows 2000 or XP. We are running Active Directory on
our network, which resolves DNS. We also have a second DNS zone. Our
servers have records in both zones along with associate PTR records.
We checked to make sure that the name and IP address of the COLD
server are in the DNS tables. We did a NSLOOKUP by IP address and the
name and address of the COLD Server reply with the correct network
information. If we put in the name of the COLD Server an error
messages comes back with a DNS request time out, can't find COLD
Server.

Some questions:

1. Cold serer? You mean ColdFusion?

2. Are you configuring your machines with your ISP's DNS? Remove them if the
case and configure a forwarder. If the option is grayed out, delete the Root
zone and try again. THis article shows how:
http://support.microsoft.com/?id=300202

3. Is this an NT or Win2k domain? My assumption is its an AD domain, hence
the long logon times due to the DNS misconfiguration.

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Active Directory

HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.

 

[dave]

1. Cold Server is a optical storage server using Legato
software frontend. (application extender)

2. DNS has no root zone and is set for forwarders

3. the logon is not at network logon that functions
normally with no delay. the delay is when you open
application extender and it makes its initial connection
to SQL. after its connected it operates at normal speed
when performing queries.

4. yes it is a w2k doamin. all win 2000 pro and xp pro
work fine it is only the nt 4 workstations.

thanks
dave

 

[Kevin D. Goodknecht Sr. [MVP]]

In

We have an application on are network that use (ODBC for
cold application). When we log onto the application the
initial connection is very slow and it takes about 30-60
seconds to log on. Once we have logged onto the
application, I can browse the data without any delays. It
seems that that problem exist only with Windows NT 4.0,
and not with Windows 2000 or XP. We are running Active
Directory on our network, which resolves DNS. We also
have a second DNS zone. Our servers have records in both
zones along with associate PTR records. We checked to
make sure that the name and IP address of the COLD server
are in the DNS tables. We did a NSLOOKUP by IP address
and the name and address of the COLD Server reply with
the correct network information. If we put in the name
of the COLD Server an error messages comes back with a
DNS request time out, can't find COLD Server.

Can you give us an example of the nslookup output?

Have you defined a domain suffix search list on the NT4? IIRC NT4 doesn't do
this automatically, you have to manually add domain suffix search list.

 

[Ace Fekay [MVP]]

In

1. Cold Server is a optical storage server using Legato
software frontend. (application extender)

2. DNS has no root zone and is set for forwarders

3. the logon is not at network logon that functions
normally with no delay. the delay is when you open
application extender and it makes its initial connection
to SQL. after its connected it operates at normal speed
when performing queries.

4. yes it is a w2k doamin. all win 2000 pro and xp pro
work fine it is only the nt 4 workstations.

thanks
dave

Thanks for the additional info. If its just the NT4 machines, have you
looked into WINS to make the resolution process more efficient? Reason I say
this is I am *assuming* that you are connecting to your cold server by
single name? Therefore, W2k and XP will append its suffix to it and perform
a hostname resolution (DNS) whereas NT4 will not and will use NetBIOS as the
default means. You could also on the NT4 machine check off to use DNS for
hostname resolution and insure the suffix matches the zone where the Cold
resource is under.

You can test this by simply creating an lmhosts entry for the Cold server on
the NT4 machine and see if it speeds up.

--
Regards,
Ace

Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Active Directory

HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.