Solved

Can not access some pages on the Internet

Posted on 2003-10-30
12
162 Views
Last Modified: 2010-03-18
I have a wdw 2k network with 1 domain controller. two unmanaged switches, and DSL connection. The server has has two dual network cards. one is connected to the switch and the other to the dsl modem. I am running dns on the server.

This is my problem: from the server I can access the web and go anywhere including the company web site whitch is hosted on a different location. However, when I go to any other pc in the office I go anywhere in the web but not the company site. we have contacted the hosting site and they say the problem might be on our end. also we are unable to get company email.

I have no idea where to start

Please help
0
Comment
Question by:jfhcs
  • 6
  • 4
  • 2
12 Comments
 
LVL 57

Expert Comment

by:Pete Long
Comment Utility
Hi belink,
COnfigure you internal DNS server as the clients DNS server, then enable forwarders on your internal DNS server and set up your ISP's DNS server as "The next port of Call"

Also open your DNS admin console and ENSURE you dont have a "." (full stop) in it, as this will disable DNS forwarding

PeteL
0
 

Author Comment

by:jfhcs
Comment Utility
where ca I make those changes. I have DNS open but do not see. In the client PC I have them pointing to the server for dns and on the server I'm using the ISP DNS server on the second NIC.

I added the isp dns to the clients pc but nothing. remember the only page I can not access is the company's web page all the others work fine
0
 
LVL 57

Expert Comment

by:Pete Long
Comment Utility
:0) on the DNS server go to admintools>dns

expand the server you are on and right click it, then select properties

Pete
0
 

Author Comment

by:jfhcs
Comment Utility
Ok I enable forwarders and added the isp dns IPs where do I setup "The next port of Call" and also where can I see this (Also open your DNS admin console and ENSURE you dont have a "." (full stop) in it, as this will disable DNS forwarding)
0
 
LVL 41

Expert Comment

by:stevenlewis
Comment Utility
could be an MTU problem oon the clients
when using ICS and dsl
see here
http://www.annoyances.org/exec/show/article04-107
change MTU on client
use drtcp to change the MTU settings
drtcp (free)
http://www.dslreports.com/front/drtcp.html
0
 
LVL 57

Accepted Solution

by:
Pete Long earned 500 total points
Comment Utility
>>do I setup "The next port of Call"

youve done it!

>>Ok I enable forwarders and added the isp dns IPs

you need to open the forward lookup zone untill you see your DNS entries in the right hand pane, make sure there is no full stop in there :0)

Pete
0
Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

 
LVL 57

Expert Comment

by:Pete Long
Comment Utility
Stop listening to me and listen to steve hes forgotten more than I know :0)

Pete
0
 

Author Comment

by:jfhcs
Comment Utility
Ok I will try that but will have to do it tomorrow since the office its close now and I connected remotely to the server from where I am but can not access the clients anymore from here. How can I revisit this issue with you guys?
0
 
LVL 41

Expert Comment

by:stevenlewis
Comment Utility
Pete, not true!

jfhcs, just save one of the emails you get, and click on the link, and make a comment, we will get a notif that you have commented
0
 

Author Comment

by:jfhcs
Comment Utility
ok, thank you guys.

We'll chat tomorrow

JuanFran
0
 
LVL 57

Expert Comment

by:Pete Long
Comment Utility
:0)
0
 
LVL 57

Expert Comment

by:Pete Long
Comment Utility
ThanQ
0

Featured Post

Top 6 Sources for Identifying Threat Actor TTPs

Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

Join & Write a Comment

Enterprise networks where VoIP phones have been deployed frequently use port configurations that allow both a computer and an IP phone to be plugged into the same switch port but use different VLANs. On Cisco equipment I'm referring to the "native V…
The Need In an Active Directory enviroment, the PDC emulator provide time synchronization for the domain. This is important since Active Directory uses Kerberos for authentication.  By default, if the time difference between systems is off by more …
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
When you create an app prototype with Adobe XD, you can insert system screens -- sharing or Control Center, for example -- with just a few clicks. This video shows you how. You can take the full course on Experts Exchange at http://bit.ly/XDcourse.

763 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

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now