Restrict inbound access on localhost:TCP port

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For reasons beyond my control, I have a binary that binds to TCP "localhost:$PORT". (Unix socket bindings would make this question moot).



If I understand correctly, this means that although no network machine can connect, other users on the machine (including unprivileged daemon users) can connect to this port.



Is there some way for me to specify that only binaries running as $me should be allowed to connect to this port? I can become root in order to specify the configuration, but the listening binary and the connecting binaries both run as the non-root $me user






linux networking tcp port






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    up vote
    0
    down vote

    favorite












    For reasons beyond my control, I have a binary that binds to TCP "localhost:$PORT". (Unix socket bindings would make this question moot).



    If I understand correctly, this means that although no network machine can connect, other users on the machine (including unprivileged daemon users) can connect to this port.



    Is there some way for me to specify that only binaries running as $me should be allowed to connect to this port? I can become root in order to specify the configuration, but the listening binary and the connecting binaries both run as the non-root $me user






    linux networking tcp port






    share























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      For reasons beyond my control, I have a binary that binds to TCP "localhost:$PORT". (Unix socket bindings would make this question moot).



      If I understand correctly, this means that although no network machine can connect, other users on the machine (including unprivileged daemon users) can connect to this port.



      Is there some way for me to specify that only binaries running as $me should be allowed to connect to this port? I can become root in order to specify the configuration, but the listening binary and the connecting binaries both run as the non-root $me user






      linux networking tcp port






      share













      For reasons beyond my control, I have a binary that binds to TCP "localhost:$PORT". (Unix socket bindings would make this question moot).



      If I understand correctly, this means that although no network machine can connect, other users on the machine (including unprivileged daemon users) can connect to this port.



      Is there some way for me to specify that only binaries running as $me should be allowed to connect to this port? I can become root in order to specify the configuration, but the listening binary and the connecting binaries both run as the non-root $me user






      linux networking tcp port




      linux networking tcp port





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      asked 4 mins ago









      Soumya

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