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Right now I'm using cap_net_bind_service MY_USERNAME in /etc/security/capability.conf.
Now I just need to set cap_net_bind_service+i on the interpreter of my favouite scripting language to be able to add CAP_NET_BIND_SERVICE to the effective set via libcap[-ng].

This works fine, but I wonder if there's a way to achieve the same thing without setting any caps to the interpreter binary. While it's not a big problem (other user accounts don't have the cap so they can't use it even with the bit set on the interpreter binary) it's somewhat annoying since I have to re-set the flag everytime the interpreter is updated.

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Someone with enough rep please add the posix-capabilities tag –  ThiefMaster Sep 1 '12 at 19:44

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