invalid dns lookup

  • Thread starter Thread starter William Grimaldi
  • Start date Start date
W

William Grimaldi

On a win2000 professional desktop (not a server). In IE it
gets old (cached?) dns info. It appears that the system
does not query the dns servers at all just uses a cache on
the machine itself. I have a website that I control dns
for. When I ping the domain on this site I always get the
old ip address. In IE it also gets the old IP address. On
the tcp/ip settings for the local adapter I have changed
the dns servers used many times with no success. When a
website changes any dns info that site then becomes
unavailable in IE.

I have searched the registry looking for something
obvious, but did not see anything. This started after
downloading a game from real networks. After awhile I
narrowed the problem to dns and finally confirmed when
pinging a website I was able to control.

Any help would be appreciated

Thanks
Bill
 
In
William Grimaldi said:
On a win2000 professional desktop (not a server). In IE it
gets old (cached?) dns info. It appears that the system
does not query the dns servers at all just uses a cache on
the machine itself. I have a website that I control dns
for. When I ping the domain on this site I always get the
old ip address. In IE it also gets the old IP address. On
the tcp/ip settings for the local adapter I have changed
the dns servers used many times with no success. When a
website changes any dns info that site then becomes
unavailable in IE.

I have searched the registry looking for something
obvious, but did not see anything. This started after
downloading a game from real networks. After awhile I
narrowed the problem to dns and finally confirmed when
pinging a website I was able to control.

Any help would be appreciated

Thanks
Bill
Click to expand...

Try ipconfig /flushdns
 
Thank You, tried this and no change. After the flush I did
a displaydns and still returned a cache? I then did a
registerdns, waited about a half hour, checked events,
there were none, redid the flush and still no change. It
is so odd that it always gets old (cached I guess) dns
info. I thought it would at some point at least go to the
server, which it seems it does not do.
 
In
William Grimaldi said:
Thank You, tried this and no change. After the flush I did
a displaydns and still returned a cache? I then did a
registerdns, waited about a half hour, checked events,
there were none, redid the flush and still no change. It
is so odd that it always gets old (cached I guess) dns
info. I thought it would at some point at least go to the
server, which it seems it does not do.
Click to expand...
Hmm, is it pointing to the correct DNS server?

Try using nslookup it has it own cache.
 
nslookup returns the correct ip address, ping does not.
Yes I am using the dns servers of my ip,
cablevision/lightpath. I tried using several others,
including my own, and it always returns the old ip address
on ping and in IE
 
In
William Grimaldi said:
Thank You, tried this and no change. After the flush I did
a displaydns and still returned a cache? I then did a
registerdns, waited about a half hour, checked events,
there were none, redid the flush and still no change. It
is so odd that it always gets old (cached I guess) dns
info. I thought it would at some point at least go to the
server, which it seems it does not do.
Click to expand...
Still a cache after you flush it?
Hmm, sounds like your HOSTS file got hijacked. Check it out. SHould only be
one entry in it:
127.0.0.0 loopback
The other stuff have semicolons in front of them, meaning they are remarked
out and are just examples.

Otherwise, I would delete the extra stuff and leave the above in and save it
as read only.



--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
Thank You so much, that was it. I removed all the entries,
and there where quite a few, and all works well.

Thanks Again
Bill
 
No problem. Seems to be the problem du jour the past couple weeks. Those
knucklheads are out there working their butts off hijacking many folks HOSTS
files and remoting in systems. Stay protected as best as possible.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
Back
Top