DNS Forwarding

[Gary Mlinek_1]

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?

[Georg Tresselt]

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

[Omar Senussi]

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?

[Gary Cooper_1 · Accepted solution]

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

[Gary Mlinek_1]

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

[Gary Cooper_1]

Hi Gary,

Any feedback yet?

Regards,

Gary