Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Client computers can not access some websites.

Posted on 2010-09-23
6
Medium Priority
?
742 Views
Last Modified: 2012-06-27
I am having an issue where some client computers can not access random websites. Below is my DNS Setup.

Router: (DNS Enabled)
DNS1: 167.206.112.138
DNS2: 167.206.7.4

Server: (STATIC IP)
DNS1: 10.0.0.5 (Server IP Address)
DNS2: 10.0.0.1 (Router IP)

Clients: (DHCP from SBS08)
DNS1: 10.0.0.5
DNS2: NONE

Logically, this makes sense and appears to be the correct way the network should be set up. This morning, i did not have a DNS2 configured on the server. Once i added in the router a secondary DNS, the server was able to access the problematic websites. The clients are still unable. I have ran IPCONFIG/FLUSHDNS on the clients to no avail.

Any idears?
0
Comment
Question by:VCSLI
[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
  • 3
  • 3
6 Comments
 
LVL 5

Expert Comment

by:Ubertam
ID: 33749790
You need to set up DNS forwarders on the SBS server's DNS configuration utility.  Go to Administrative Tools | DNS and go to the properties of your server.  There should be a Forwarders tab.  That's where you'll set up your ISP's DNS or Google's DNS or OpenDNS or any mix of them.  167.206.112.138 and 167.206.7.4 to the list.  Your router's DNS doesn't matter since the SBS server and clients look to the SBS server for DNS resolution and they don't and shouldn't ever ask the router for DNS info.
0
 
LVL 5

Expert Comment

by:Ubertam
ID: 33749796
Furthermore, by having the SBS go directly to the ISP for DNS resolution, it is fewer requests.

How you have it now: Client -> Server -> Router -> ISP
How it should be: Client -> Server -> ISP

Shorter path, faster, and better.
0
 

Author Comment

by:VCSLI
ID: 33749802
Wow, what a wonderful person you are. THANK YOU!!!!

Why were these settings not automatically configured? Should they have been? Did i miss a step somewhere?
0
 [eBook] Windows Nano Server

Download this FREE eBook and learn all you need to get started with Windows Nano Server, including deployment options, remote management
and troubleshooting tips and tricks

 
LVL 5

Accepted Solution

by:
Ubertam earned 2000 total points
ID: 33749822
With SBS2003, there is a wizard that will automatically configure it.  I haven't run any wizards on SBS2008, as I just haven't had the opportunity to, but I imagine there should have been a step there that set the DNS forwarding.
0
 

Author Comment

by:VCSLI
ID: 33749842
I just ran the "Connect to the Internet" wizard and it didn't ask for any sorta DNS info. It asked for the router and server IP and that was it. Weird because come to think of it, i think i remember seeing this at ome tine. There was also at one point the ability to set a DHCP scope in one of the Wizards. This has disapeared.

:(

Either way you're amazingness has solved my problem. Thank you!!!!

If you can think of a simple way to modify the DHCP scope please let me know.
0
 

Author Closing Comment

by:VCSLI
ID: 33749853
Respondent was extremely knowledgeable and explained the information perfectly. Thank you!
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Active Directory security has been a hot topic of late, and for good reason. With 90% of the world’s organization using this system to manage access to all parts of their IT infrastructure, knowing how to protect against threats and keep vulnerabil…
Recently, Microsoft released a best-practice guide for securing Active Directory. It's a whopping 300+ pages long. Those of us tasked with securing our company’s databases and systems would, ideally, have time to devote to learning the ins and outs…
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
Suggested Courses

721 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