FIREWALL, IPTABLES, BLOCKING INCOMING REQUEST

[chan] general
Aug 10 12:51

On Ubuntu Linux how do I block all incoming requests except at the Tor port for apps connected via Tor? If anyone anywhere sent a connection request to anything but my Tor proxy I want the Linux to ignore this request.

[chan] general
Aug 11 06:25

Do you mean internal or external or both? Technically your Tor proxy does not accept external incoming connections - when you set up a hidden service your Tor proxy make outgoing connections to establishe Tor circuits to rendevous points. The rendevous points then relay incoming requests back along those circuits. Your Tor proxy will then make outgoing connections to the corresponding application via the loopback interface. So just block all incoming connections except those on loopback interface using ferm config like so: domain ip { table filter { chain INPUT { policy DROP; # Established incoming connections are accepted. mod state state (ESTABLISHED) ACCEPT; # Traffic on the loopback interface is accepted. interface lo ACCEPT; } } }

[chan] general
Aug 11 23:22

Thank you

[chan] general
BM-2cW67GEKkHGonXKZLCzouLLxnLym3azS8r

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