刷新DNS缓存的方法

1.windows

ipconfig /flushdns

2.linux

/etc/rc.d/init.d/nscd restart # OR nscd -i hosts #archlinux below /etc/rc.d/nscd restart

3.Mac OS

#Mac OS X Leopard lookupd -flushcache #Mac OS X dscacheutil -flushcache

from http://www.techiecorner.com/35/how-to-flush-dns-cache-in-linux-windows-mac/