Flush DNS Cache

8/1/2005 in General, System Software Notes by face | 7 comments

Flush DNS Cache:

Looking for a way to flush your DNS cache?

It’s as easy as:

Leopard – sudo dscacheutil -flushcache
Tiger – sudo lookupd -flushcache

Windows – ipconfig /flushdns

Further info here – Forcing an IP Address

  1. Aleksandersen on 9/28/2006 at 5:23 pm

    This does not work with Mac OS Tiger.

  2. Oliver Rahner on 10/16/2006 at 8:32 am

    Yes, it does.

    The first command is for tiger.
    The second one is for Win 2k/XP/2k3.

  3. anonymous on 10/10/2007 at 11:39 am

    The first command flushes only the cache maintained by lookupd.
    DNS entries may be cached elsewhere.

  4. face on 10/10/2007 at 12:53 pm

    If they “may be cached elsewhere” would you care to share where that might be?
    and if cached elsewhere how does one clear it?

  5. Kris Khaira on 11/19/2007 at 11:00 pm

    Use this command in Leopard:
    sudo dscacheutil -flushcache