Dynamic TCP reserved ports allocated in which range?

Dr. Michael Weller (eowmob@exp-math.uni-essen.de)
Thu, 19 Apr 2001 10:52:00 +0200 (MESZ)


Hi List(s)

For a firewall setup I need to know in which range applications like
rsh, or better yet the rresvport() libc function allocate reserved ports.

Do I have to expect ports in the whole 1..1024 range (maybe omitting those
already in use by other servers) or is only a limited range used (like
512-1023).

Thanks in advance,
Michael.

P.S.
Yes, I know I shouldn't allow such things through a firewall, but I have
to (at least for now) and it's also not into the internet but only between
internal departments.

--

Michael Weller: eowmob@exp-math.uni-essen.de, eowmob@ms.exp-math.uni-essen.de, or even mat42b@spi.power.uni-essen.de. If you encounter an eowmob account on any machine in the net, it's very likely it's me.

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