how to flush the dnscache explcitly

[Guest]

I have tried ipconfig /flushdns but the cace still exisit. I think I have a
virus which I cannot clean at this time. The virus is so smart that it has
buitl a dns cache for all the antivirus software sites like mcafee,symantec
and 100 other entries.

If I do ipconfig /displaydns I see around 100 or so entries something like
this
www.symantec.com

Record Names......:www.symantec.com
Recond Type ........: 1
Time to live ..........:31534274
Data Length..........: 4
Section .................: Answer
A <host> record .....: 127.0.0.1

So all the websites are masked to local loopback address.Is there anyway to
clean this ? Maybe all these entries are kept in a file?

 

[Ryan Hanisco]

You might also want to check that no one did something stupid like a default
route on your workstation or an LMHOSTS file to route to loopback.

ipconfig /flushdns usually works.

 

[John Wunderlich]

I have tried ipconfig /flushdns but the cace still exisit. I think
I have a virus which I cannot clean at this time. The virus is so
smart that it has buitl a dns cache for all the antivirus software
sites like mcafee,symantec and 100 other entries.

[...]>
So all the websites are masked to local loopback address.Is there
anyway to clean this ? Maybe all these entries are kept in a file?

"How to Disable Client-Side DNS Caching in Windows"
<http://support.microsoft.com/kb/245437/EN-US/>

HTH,
John