Posts Tagged “dscacheutil”

If you want to spoof some DNS requests then dnschef is the tool to do it. I can never get enough of redirecting innocent Internet surfers to random locations. The main key for dnschef to be extremely useful is the fact that you will have to somehow get the traffic to the Backtrack Linux server running dnschef which could be done by gaining access and modifying DNS entries on a single server or by poisoning the real DNS server on a network. Below we show a couple examples of dnschef in action but overall it is really easy to use and the hard part will be figuring out the method you use to get the DNS (Domain Name Server) traffic to the Backtrack server running dnschef.

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Use the below syntax from the Terminal window on a Macintosh computer running OS X 10.5 (Leopard) to clear the DNS cache for the computer.

dscacheutil -flushcache

You might need to flush the DNS cache if you know a DNS change has been made recently but your Mac is not showing the change. OS X does a good job of DNS caching but it may take longer than you want to wait to update a changed DNS setting and running the above command will solve your issue without having to reboot.

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