Computing.Net > Forums > Windows Server 2003 > DNS and the internet

Computer Problems? Computing.Net has over 1,000,000 posts about all things technology related! Over 90% answered within 24 hours! Click here to start participating now! Also, be sure to check out the New User Guide.

DNS and the internet

Reply to Message Icon

Name: YSChee
Date: February 27, 2005 at 04:04:29 Pacific
OS: Win 2003
CPU/Ram: P4 3.2 - 1Gig
Comment:

Need some help with DNS guys... actually I'm not 100% sure its DNS that's giving me the problems. I'm configuring this network for a school (40 clients) and AD is all set up and all, but I can't seem to get the server and the clients to connect to the Internet.

Basically the server has two NICs, one to the switch with all the clients and the other to the ADSL modem.

I've also set up RRAS and DHCP, and as far as I can tell I've done them right - there wasn't much to both of them anyway, so I'm narrowing the problem down to DNS.

When I open a web browser instead of searching for a the url it actually searches for the IP address, and then well it says page not found. Yes the connection and the modem works (tested it with workgroup setup).

I've typed in NSlookup and its returning the server name and adress and all... I can ping the server from anywhere, and as I said all the clients can connect to the server just fine.

what else could I have possibly done wrong?

help!



Sponsored Link
Ads by Google

Response Number 1
Name: YSChee
Date: February 27, 2005 at 05:06:10 Pacific
Reply:

oh something else i forgot to mention...

i looked up the ISP DNS settings and put that in into the DNS forwarders list...

well there was like four of em, so I chucked all four in... and no it still didn't work..

the Network NIC has a statically assigned IP address while the internet NIC is dynamically assigned (could this be the problem? the account doesn't have an static ip address...)

help!!


0

Response Number 2
Name: Curt R
Date: February 27, 2005 at 05:29:58 Pacific
Reply:

If nslookup say's your DNS is ok I would check your settings in RRAS. Do you have NAT enabled? If not, you need it to have the clients access the internet.

RRAS also has some limited DHCP capability to provide addressing to remote clients connecting and I've found in 2000 anyway that you don't want it running at the same time as your DHCP service. It seems to cross things up and reduce the ability of clients to access the internet.


0

Response Number 3
Name: YSChee
Date: February 27, 2005 at 15:37:12 Pacific
Reply:

Yeah I've got NAT enabled...

the RRAS settings was pretty straightforward? i pretty much just assigned which NIC was connected to the net and which was connected to the network...

the thing is i can't even access the net from the server, so i'm guessing its something wrong there?

I've heard about the issue with DHCP and RRAS (not too familiar with it tho...), but shouldn't I be able to access the net from the server if i've configured things right?



0

Response Number 4
Name: Curt R
Date: February 28, 2005 at 04:13:03 Pacific
Reply:

Check your IP settings on the server (which should have them statically assigned) and ensure your DNS settings point at your server. Forward your server's DNS to your ISP's DNS server(s). Make sure the clients are getting your DNS server's address for their DNS settings from DHCP.


0

Response Number 5
Name: royn
Date: February 28, 2005 at 04:23:02 Pacific
Reply:

What is the IP address of the default gateway you’re clients are using?
(Internal IP address NAT router??)


0

Related Posts

See More



Response Number 6
Name: YSChee
Date: February 28, 2005 at 06:05:57 Pacific
Reply:

thanks for all your help so far guys....

to answer some of the question - Yup the DNS settings point to the static IP address of the server and I'm pretty sure I've forwarded my server's DNS to the ISP's DNS... unless I'm doing it wrong? Basically I got the ISP's DNS and put them in the forwarders of the DNS? sorry if that's like totally wrong but as far as I know that's how its supposed to be done.

Ok my settings are for the network NIC have a static IP address of 192.168.1.1, which is also what I've put as the default gateway and DNS server.

The internet NIC is dynamically assigned for IP, default gateway and DNS. IP is 10.0.0.11, default gateway is 10.0.0.138 (which happens to be the IP for the adsl modem)

In DNS i've put the forwarders of the ISP as per the website - i'm in Australia btw and herea re some link of the DNS info.

http://bigpond.custhelp.com/cgi-bin/bigpond.cfg/php/enduser/std_adp.php?display=content&p_faqid=5586&display=content

I’m not too sure about adding the DNS suffix tho… do I need to do that?

My problem now is that the server can't even connect to the Internet, so I need to get that fixed up first before I worry about the clients... once I can connect the server to the net, that should be a step in the right direction right?

Sorry if my questions sound totally newbish… well mainly coz I am newbish. Heh.


0

Response Number 7
Name: Curt R
Date: February 28, 2005 at 08:45:33 Pacific
Reply:

Your external NIC is DHCP so you don't have to worry about configuring its TCP/IP info. First, ascertain if you're getting connectivity on the external (internet) side. Try pinging your ISP's DNS servers or www.google.com. If you're not getting connectivity, then you need to speak to them about the problems you're having.



0

Response Number 8
Name: YSChee
Date: February 28, 2005 at 17:27:28 Pacific
Reply:

doh yeah didn't think of pinging the DNS... it wasn't responding - turns out they gave me the wrong one.

anyway, they did give me the right one, and that was pingable... and I put that in DNS forwarders and it still didn't work.

Now I think I have another issue - I can't ping any of the other computers from the server!!! None of the clients are responding to pings! but they can connect to the server and ping the server and use the shared folders and individual home folders for the accounts and all that?

what's going on!

i'm on the verge of pulling all my hair out...


0

Response Number 9
Name: YSChee
Date: February 28, 2005 at 17:38:11 Pacific
Reply:

doh yeah didn't think of pinging the DNS... it wasn't responding - turns out they gave me the wrong one.

anyway, they did give me the right one, and that was pingable... and I put that in DNS forwarders and it still didn't work.

Now I think I have another issue - I can't ping any of the other computers from the server!!! None of the clients are responding to pings! but they can connect to the server and ping the server and use the shared folders and individual home folders for the accounts and all that?

what's going on!

i'm on the verge of pulling all my hair out...


0

Response Number 10
Name: Curt R
Date: March 2, 2005 at 08:25:12 Pacific
Reply:

You didn't mention what client software you're using but if it's XP, check the clients and see if the firewall is turned on, on them. If it is, turn it off and try pinging them from the server again and see if you don't get a response.

If you can ping your ISP's DNS then you have connectivity so the issue has to be in the setup. Since your server is connected directly to the internet, it should be accessing it directly without going through your own DNS and RRAS. Open a command prompt window and type the following command:

ipconfig /all

Your external NIC's TCP/IP info can be checked with your ISP to ensure all settings are correct (gateway/DNS etc). If they are, you should have be able to browse the web and get resolution on web pages. Once you get it working properly then the clients should get access as well if your DHCP is set with the proper parameters, and your RRAS is setup correctly. If you still can't get the clients browsing after you get your server browsing then you may need to redo the DNS and RRAS. Start with DNS and get it working properly first. Once you're sure it is, then setup RRAS/NAT.


0

Sponsored Link
Ads by Google
Reply to Message Icon

Very slow SATA drive perf... I chose the wrong licensi...



Post Locked

This post is quite old and has been locked from receiving new replies. Please create a new posting instead.


Go to Windows Server 2003 Forum Home


Sponsored links

Ads by Google


Results for: DNS and the internet

cannot access the internet www.computing.net/answers/windows-2003/cannot-access-the-internet/980.html

Do I need a DNS and DHCP server? www.computing.net/answers/windows-2003/do-i-need-a-dns-and-dhcp-server/2530.html

win2k3 and the internet www.computing.net/answers/windows-2003/win2k3-and-the-internet/3276.html