Proving the Leopard Firewall Issue in Four Easy Steps
Mac side, from a Terminal:
- sudo su
- nc -l <port number> (I used 1000)
- Ensure that your Leopard firewall settings are set to “Block all incoming connections” and “Enable Stealth Mode” (in the advanced settings)
From a remote machine:
- nc <leopard ip> <port from above>
Connected! If you don’t have netcat on a remote machine, you can simply telnet to the port as well. I suspect that we’re probably taking the wording “Block all incoming connections” too literally. More thoughts tomorrow.
The idea for this came from Jurgen’s comment on Securosis.
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