[erlang-questions] Is there a way to change the privileges of a working program?

[Ferenc Holzhauser]

Hi,

There seems to be an alternative on relatively new Linux kernels if you
don't want to do NAT, reverse proxy or running under root.

I've found this info below here:
http://stackoverflow.com/questions/277991/linux-how-to-run-a-server-on-port
-80-as-normal-user

========
It appears that Linux kernels since 2.6.24 have a new capability that allow
you to mark an executable (but not a script, of course) as having the "
CAP_NET_BIND_SERVICE" capability.
If you install the debian package "libcap2-bin", you can do that by issuing
the command

setcap 'cap_net_bind_service=+ep' /path/to/program

========
It works for me when I set it for the beam executable.

Ferenc