windows - Can`t block localhost communications -

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i have tcp socket server , clients on local machine. want write program, disable connections , let them when _do_smth_. question - how can reset connections (to server) , don`t allow reconnect ? try create different rules in windows firewall (block port, block ip address, etc.) makes no effect if server , clients on same machine.

and sorry english, it`s bad enough.


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