On Sun, 2013-07-28 at 20:36 -0400, Buck Huppmann wrote: > depends what reserved is defined as, but if it's 1024, then it's > untrusted as well. per rresvport(3): ?? CAP_NET_BIND_SERVICE Bind a socket to Internet domain privileged ports (port numbers less than 1024).
Trying out: $ id uid=1000 $ nc -l 20000 $ nc -l 400 nc: Permission denied $ nc -l 50 nc: Permission denied $ nc -l 512 nc: Permission denied Cheers, Chris.
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