Hello, On Sat, Dec 5, 2009 at 1:48 AM, Tom H <tomh0665 at gmail.com> wrote: >>> Is your question related to bind or djbdns? Or is it related to browsers? > >> Ubuntu network feature, e.g. ping is using old DNS cache. > > Install nscd > aptitude install nscd > > To flush > invoke-rc.d nscd restart > I have not installed nscd, so just wonder why caching happen.