Yep, primarily for performance reasons... Can often bite you when troubleshooting. Thankfully, most will reset the cache when you restart the app.
* * *ASB* *http://XeeMe.com/AndrewBaker* *Harnessing the Advantages of Technology for the SMB market… * On Thu, Jun 14, 2012 at 3:00 PM, Michael B. Smith <[email protected]>wrote: > Always been my experience as well. And it isn't just IE; lots of programs > cache those kinds of results. > > -----Original Message----- > From: David Lum [mailto:[email protected]] > Sent: Thursday, June 14, 2012 2:45 PM > To: NT System Admin Issues > Subject: RE: Windows XP DNS Cache Retention time question > > " Also it seems IE has its own cache. You can ipconfig /flushdns and if IE > is open when you do it...it seems to still not get it right. Close IE and > flush and all is well." > > Huh? As in, Internet Explorer doesn't get the /FLUSHDNS right unless it's > closed when the /FLUSHDNS command is run? > > Interesting if true... > > Dave > > -----Original Message----- > From: Kennedy, Jim [mailto:[email protected]] > Sent: Thursday, June 14, 2012 10:50 AM > To: NT System Admin Issues > Subject: RE: Windows XP DNS Cache Retention time question > > One day. http://support.microsoft.com/kb/318803 > > Also it seems IE has it's own cache. You can ipconfig /flushdns and if IE > is open when you do it...it seems to still not get it right. Close IE and > flush and all is well. > > -----Original Message----- > From: Brunton [mailto:[email protected]] > Sent: Thursday, June 14, 2012 1:42 PM > To: NT System Admin Issues > Subject: Windows XP DNS Cache Retention time question > > One of our users somehow ended up with an incorrect address in DNS > nslookup hismachine returned two addresses, neither of which were correct. > > After clearing the host record (not ptr records existed) I ran ipconfig > /registerdns on his machine and his correct address appeared, along with > the correct ptr record. > > My own machine, though retained the bogus IP address in the local DNS > cache, and I could see it with ipconfig /displaydns > > I flushed the dns cache, and all was sweetness and light. > > The question: > How long does dynamic DNS data remain in the cache? > > Especially helpful would be a link to where this is documented. > > Thanks, > --BM > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
