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Thread: ncat and firewall

  1. #1
    Junior Member
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    Dec 2018
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    ncat and firewall

    Hi, everyone.

    IM trying to bypass firewall using ncat but even thought I open a post it still gets block from the outside

    from the inside: ncat -l 31339
    from the outside ncat <IP> 31339

    what can I do ?

  2. #2
    Administrator Steve R Jones's Avatar
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    Apr 2011
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    from the outside ncat <IP> 31339

    That is NOT an IP number... It looks more like a "Port" number.

  3. #3
    Junior Member
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    Nov 2018
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    Can you elaborate, please? Unable to understand! You open a port, why?

  4. #4
    Junior Member
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    Nov 2018
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    He mentioned the IP in '<>' so he did not mention the IP purposefully, indeed it is a port number, that is what he mean.

  5. #5
    Junior Member
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    May 2004
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    I suspect the firewall you are using employs Network Address Translation, which means you need to ensure you have created a policy on the firewall to forward the incoming connection to port 31339 to the private IP address of the system you are using to listen on port 31339.

    Can you confirm the firewall is properly configured to forward this port to the system you are using to listen for the incoming connection?

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