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Cannot access web pages by name

Hi there,

We recently installed a new server and now, for some reason, we are having internet connection problems. We can access web pages via IP address no problem but when we try to access any web page by name, we can't. Any ideas on what the problem could be? We've been struggling with it for 3 days now and it's now become a critical issue.

Thanks
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boukaka
Asked:
boukaka
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6 Solutions
 
WGhenCommented:
Did you create a DNS entry for that sever/ip?
If yes, can you ping the DNS name that you created?

WGhen
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chhokra_expertCommented:
sounds very much like a dns problem
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boukakaAuthor Commented:
We have 5 servers, one of them is the DNS controller. Inside the network we can ping all five servers from any other one but we cannot ping outside of the network (on a name)
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VashooCommented:
Have you checked if the DNS server is configured correctly?
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boukakaAuthor Commented:
Our IT guy has checked everything he can think of.
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boukakaAuthor Commented:
I was hoping for more specific ideas of what to check
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Zephirus79Commented:
It is dns, it has to be....


Try this...


ping 4.2.2.4


Then ping 72.14.205.99

Then ping www.google.com



The first is a server that is always on that we use to test pings with.    The second is the IP address of google.com.    


if you can ping the numbers but not the name, then its dns or a hijacker or spyware of some type on your local machine.    Perhaps it could be a proxy issue if you are using one as well....

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WGhenCommented:
Your IT guy must have checked the server to make sure the NetMask and Gateway are correctly set on it, right?

WGhen
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ryandale56Commented:
it is DNS.  Get a new IT guy.
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boukakaAuthor Commented:
we can ping google by ip, he's checked the NetMask and Gateway - he says that it's something to do with the name resolution but he doesn't know what.
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boukakaAuthor Commented:
ok, so lets say that it is definately DNS. Any comments on specifically how to troubleshoot the name resolution? sorry to be a pain and I'm going to give up very shortly.
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VashooCommented:
Try running a packet inspector/sniffer and see what data the client sends and recieves when trying to access a website by name, and also inspect the data the DNS sends and receives while trying to resolve the ip. Maybe that gives some clue on whats wrong with the DNS.
Good luck!
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VashooCommented:
http://www.ethereal.com/ - try this one
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itcs-cssCommented:
As others have said this is a DNS problem...

You have to contact your Host Manager (DNS operator) and register the IP of the new server as an C-NAME for the "www.servername.com" of the website you want to serve from it.

Simple way to check this is to open a dos prompt and use nslookup:

nslookup 74.123..456.7 (does this show the name of the website?)
nslookup www.servername.com (does this show the IP of the server?)

if those don't matchup you have a problem...and get a new IT guy

and yes, I'll accept consulting fees  ;)
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boukakaAuthor Commented:
Crap - they don't match - thank you so much. NOW.. how do I split out the points to be fair?
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RPPreacherCommented:
1 point to each participant
The rest to your IT guy with his termination notice.
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boukakaAuthor Commented:
Ok, this may or may not be fair but its how I'm doing it - hope its ok with you all.

20 pts to people who just said "it's DNS" (chhokra & ryandale56)
50 pts to the WGhen for adding a bit more to that thought (WGhen)
205 pts to each person who gave detailed suggestions of what to look at (Vashoo & Zephirus79).

Thank you ALL - unfortunatly it is not within my power to remove the bum.
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boukakaAuthor Commented:
Apparently I can't add - but I've modified the amounts so that they add up (itcs-css is also in the detailed suggestion section)
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