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Thanks for your answer. What I failed to mention in the first post was that I was using virtual machine. I was able to block the active connection from the host using ipfw (OS X). Also I wasn't aware of the fact that blocking established connections is quite hard!

Tomi Savolainen
– Tomi Savolainen

2015-06-11 08:19:20 +00:00
Commented Jun 11, 2015 at 8:19
@TomiSavolainen Blocking already-established connections is not hard, it's in fact easier. But many common firewall setup examples show how to let all already-established connections through, so as to prevent only incoming connections and allow all outgoing connections.

Gilles 'SO- stop being evil'
– Gilles 'SO- stop being evil'

2015-06-11 08:21:22 +00:00
Commented Jun 11, 2015 at 8:21

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