topic DNS Forwarding in Networking

DNS Forwarding

Gary Mlinek_1 — Tue, 02 Nov 2004 09:10:12 GMT

My DNS Forwarding is not forwarding to my workstations. The workstations are able to access most home pages with the exceptions of YAHOO.COM, but my Domain Controllers can access it with no issue. Anybody able to help me with this?

Re: DNS Forwarding

Georg Tresselt — Wed, 03 Nov 2004 03:21:27 GMT

Are you sure this is a DNS and not a proxy or firewall problem ?

Re: DNS Forwarding

Omar Senussi — Wed, 03 Nov 2004 19:25:47 GMT

Hi Gary,
Hope I'm not teaching my grandma to suck eggs.. but .. Try looking in your Internet explorer tools-->Internet options->privacy-->sites You havent inadvertently blocked yahoo?

Re: DNS Forwarding

Gary Cooper_1 — Thu, 04 Nov 2004 04:10:18 GMT

Hi Gary,

Is this a problem with a single workstation or all of them?

What happen's when you try to browse www.yahoo.com?

On your domain controller, from the command prompt, do an nslookup on www.yahoo.com to get the IP address (it will return several). Then on your workstation that can't browse www.yahoo.com, type the IP address into the address bar. If it successfully browses the site, then it looks like a name resolution (DNS) problem. If it still can't brows the site, then it's not a DNS problem.

What OS is your domain controller running?

What's your anti-virus situation? There are some viruses around which hack into C:\WINNT\system32\drivers\etc\hosts and put varius entries in it - usually for windowsupdate.microsoft.com and the anti-virus sites.

Regards,

Gary

Re: DNS Forwarding

Gary Mlinek_1 — Thu, 04 Nov 2004 07:31:20 GMT

Georg,

The firewall is not blocking the Yahoo frontpage, or Yahoo for that matter. It seems that www.mail.yahoo.com is working just fine.

Thanks for your thoughts.
Gary

Re: DNS Forwarding

Gary Cooper_1 — Thu, 04 Nov 2004 08:48:20 GMT

Hi Gary,

Any feedback yet?

Regards,

Gary