Clear DNS Cache on Mac

The following steps will clear your | DNS cache if you are having trouble connecting to a multiplayer Minecraft Server on a Macintosh computer: After entering the command for your OS version, the DNS cache will be empty.
 * 1) In a Finder window, navigate to “Applications/Utilities/Terminal” and launch the "Terminal" application by double clicking on it.
 * 2) On Mac OS X 10.5 Leopard, enter one of the following commands in your terminal window depending on your OS version
 * 3) Mac OS X 10.5 Leopard: dscacheutil –flushcache
 * 4) Mac OS X 10.4 Tiger: lookupd –flushcache