Any way to block skype from our network using IPTABLES ?
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Find out what port it's running on by installing it on a machine you control and running wireshark. – Andrew Jul 29 '10 at 6:47
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it seems skype application uses ports dynamically scanning which are not blocked. – nitins Jul 30 '10 at 7:13
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Skype is P2P-like, it's very difficult to block it using only iptables. You should checkout layer7 (http://l7-filter.sourceforge.net/protocols)
