Solved

DNS Error

Posted on 2008-06-25
8
242 Views
Last Modified: 2010-04-07
Dear, I am facing the problem of DNS error when i am trying to browse the page. its happening randomly, sometimes i am  able to get the page and sometimes i am not and i get the error of Page Cannot be Displayed and DNS error. The same site if i try few times then i am suucessfull.

The browsing was fine, i never had this issue before but these days when i am browsing i am getting frequently the DNS error problem.

Structure is as follows
On  2003 Server Side.
DNS is IP of the server itself
in DNS under forwarder i placed three IP addresses as follows
x.x.x.x    ----  ISP1 DNS IP
y.y.y.y   ---- Local IP of the Firewall (Which act as gateway to the clients and also the DNS server)
z.z.z.z   ---- ISP2 DNS IP

On the client side
DNS is IP of Windows 2003 server
Gateway is Local IP of firewall
0
Comment
Question by:shoeb_fbd
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
8 Comments
 
LVL 2

Accepted Solution

by:
dbanttari earned 125 total points
ID: 21865763
Restart the DNS Server Service on the Win2003 server.
0
 
LVL 71

Expert Comment

by:Chris Dent
ID: 21865853

There can be quite a lot of different causes for that issue.

One of them is bad cached data which would clear by restarting the DNS service. That's only good if the problem doesn't repeat though.

Initially I would suggest you remove the Forwarders and see if the issue repeats.

If it does repeat, there are steps we can take to find the cause.

Chris
0
 
LVL 5

Expert Comment

by:karwak
ID: 21865890
Why do you have the firewall as forwarder? Aren't you directly forwarding to your ISP's DNS servers? It may work in a round robin fashion and your firewall might not be configured to act as a DNS server...

If there's no real reason for that entry, remove it.

Let me know if that changed things!
0
IoT Devices - Fast, Cheap or Secure…Pick Two

The IoT market is growing at a rapid pace and manufacturers are under pressure to quickly provide new products. Can you be sure that your devices do what they're supposed to do, while still being secure?

 

Author Comment

by:shoeb_fbd
ID: 21865927
I removed the forwarders and also restarted the DNS service on windows 2003 server but seems the problem still exist as for some web site i am unable to veiw the page and again says the page cannot be displayed and DNS error.
0
 
LVL 5

Expert Comment

by:karwak
ID: 21865968
Try checking DNS on it's own first!

Use a command shell and try with nslookup. Try directly on your client and on the W2k3 server as well...
0
 
LVL 18

Expert Comment

by:sk_raja_raja
ID: 21865993
are you haveing this issue on specific sites,,,, do a tracert and look for any packet loss...check for dns server eevnt logs
0
 

Author Comment

by:shoeb_fbd
ID: 21866002
when i try nslookup its fine both from server and cleint, the domains are resolved
0
 
LVL 5

Expert Comment

by:karwak
ID: 21866043
Are you using a proxy?
0

Featured Post

Ready to trade in that old firewall?

Whether you need to trade-up to a shiny new Firebox or just ready to upgrade from whatever appliance you're using now, WatchGuard has the right appliance for you! Find your perfect Firebox today with appliance sizing tool!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

One of the most often confused topics in the area DNS is the idea of GLUE records. Specifically, what they are, when they are needed, when they are provided, and how they are created. First, WHAT IS GLUE? To understand GLUE, you must first under…
I've written instructions for one router type, but this principle may be useful for others of the same brand and even other brands of router. Problem: I had an issue especially with mobile devices that refused to use DNS information supplied via…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
Suggested Courses

628 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question