No more caching of failed DNS lookups in Windows OS
by Webmaster on Aug.12, 2009, under Windows 7, Windows OS Tricks & Tips, Windows Vista, Windows XP
Since Windows 2000, cache DNS lookups, which is suppose to lower web activity, can cause problems when there are failed DNS lookups. The usual fix is to flush the DNS via the ipconfig when in a command prompt. If you’d prefer your operating system though not to cache DNS’s that can be done pretty easily. We’re going to be using the handy “reg.exe” command line utility that’s great for tweaking the Windows registry. Load up the command prompt (Click Start or the Windows key) and type “cmd” then press the Enter key. From there type “REG ADD HKLM\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters /V NegativeCacheTime /T REG_DWORD /F /D 0“, press the Enter key and your computer will be set not to cache DNS’s from now on after you reboot.
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