Solved

WHere do i setup the IP address of our Internet Server?

Posted on 2004-09-10
9
160 Views
Last Modified: 2010-04-14
HELP!!

All of a sudden we lost partial connection to the internet - meaning some pc's connected and some didnt.  - I DONT know what happened there!!

Prior we had all our workstation PC's connect to the proxy server.  A 'consultant' came in and added the proxy server's ip somewhere on our PDC server.  We removed the prox settings pc workstations and had the DNS pointing to the PDC.

I'm trying to find the spot where it was added to confirm its still there right now.

THanks for your help and any insight as to why some would connect and some not.

THANKS!!

ST

0
Comment
Question by:ststst
  • 4
  • 2
  • 2
9 Comments
 
LVL 15

Expert Comment

by:harleyjd
ID: 12032208
Check you DHCP settings. You need to make sure the "router" field is enabled for either the scope or for global, and this points to the proxy server. DNS shoudl still point to the Domain Controller, so make sure that is right as well...

 
0
 
LVL 16

Accepted Solution

by:
samccarthy earned 100 total points
ID: 12034721
There are a few things that could explain the partial connectivity problem.  Since this is a 2000 domain, here is what I would do to clean things up.  

Make sure all workstations are using DHCP and no static DNS or WINS entries have been added.  You should not have any host file or LMHost file entries unless you have some specific need.

Make sure your Domain Controllers are all Static IP Addresses with their DNS pointing to one of the DC's which will be running your DNS.  Also make sure the Wins is pointing to one of the DC's where you are running Wins. (If you use Wins).  Point the Default Gateway to the Proxy Server.

In your DHCP options, as harleyjd said, make sure the router option points to the proxy server.  Also, make sure the DNS option points to the DNS server (Domain Controller).  

Within your DNS settings for your domain, look and see if you have any forwarders set on the DNS server.  Your forwarder idealy should be blank with your DC going to the root servers for any resolution.  It is acceptable to have the forwarders pointing to your ISP's DNS servers or to a Proxy or Firewall if they are configured as DNS servers.  Symantec Gateway appliances are a good example of when a forwarder would point to a firewall.  

On the workstations, in Internet Explorer, go into the Internet Options, Connections, LAN Settings and make sure the Proxy Server box is checked with the correct IP and Port entered into the boxes.

On your proxy server, make sure the appropriate rules or permissions are in place to allow the access to the internet for your workstations that you want to have access.

Once you have these all cleaned up, I would go to the workstations and do a IPConfig /renew or and IPconfig /release then IPconfig /renew to get the new or corrected DHCP settings.

With the information given, I think this will clean things up for you.

Steve





0
 
LVL 15

Expert Comment

by:harleyjd
ID: 14227875
I don't see anything that isn't already in the PAQ, and he's abandoned it completely...

At a pinch, you could split, but I don't think so, it could have been a million things...

Delete/NR
0
 
LVL 16

Expert Comment

by:samccarthy
ID: 14228019
I think a split is appropriate here
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 

Author Comment

by:ststst
ID: 14232649
Sorry gang.

The DHCP & DNS were pointing correctly to the PDC/BDC.  I really dont know what happened but eventually everything reconnected.

Actually, I wanted to know where the actual IP to my Internet was stored.
I finally was able to find the IP settings on my DNS server properties and on the Forwarders tab.

That is where the IP address of my internet provider was located.  

ST
0
 
LVL 16

Expert Comment

by:samccarthy
ID: 14234773
Wow, here is what I said.  Guess I had at least part or all of your answer.

Within your DNS settings for your domain, look and see if you have any forwarders set on the DNS server.  Your forwarder idealy should be blank with your DC going to the root servers for any resolution.  It is acceptable to have the forwarders pointing to your ISP's DNS servers or to a Proxy or Firewall if they are configured as DNS servers.  Symantec Gateway appliances are a good example of when a forwarder would point to a firewall.  
0
 

Author Comment

by:ststst
ID: 14235092
Right - O!  i guess i was just thinking of my own DNS and didnt understand that the IP i was forwarding to was also considered a DNS.

THank you for your explanation.

ST
0
 
LVL 16

Expert Comment

by:samccarthy
ID: 14235315
Thanks, and you are welcome
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

NTFS file system has been developed by Microsoft that is widely used by Windows NT operating system and its advanced versions. It is the mostly used over FAT file system as it provides superior features like reliability, security, storage, efficienc…
Cloud-based technologies and services will continue to grow in popularity in 2017 thanks to the simple, scalable and cost-effective solutions they deliver. Here are three areas where cloud adoption is poised to really take off.
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

920 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

15 Experts available now in Live!

Get 1:1 Help Now