How do I flush the DNS cache on a OS X 10.6 machine?
Trying to flush the local DNS cache. How is this done on Snow Leopard?
Using System Preferences and using the terminal?
Use
sudo dscacheutil -flushcache
or
sudo killall -HUP mDNSResponder
In 10.6 the handling of Unicast DNS is now managed by mDNSResponder - dscacheutil -flushcache now just tells mDNSResponder to restart (the second command above).
dscacheutil -flushcache