Fixing TCP/UDP ports of RPC applications

From: haim [howard] roman (roman@p-roman.jct.ac.il)
Date: Tue Mar 09 2004 - 06:43:03 EST


We're running NIS (not NIS+) servers on Solaris 9 machines. I'd like
to use a firewall to restrict access only to certain TCP & UDP ports.
However, because NIS is based on RPC, I don't know in advance to which
ports the processes will bind to. Is there some way to force these
processes to bind to certain ports?

Specifically, the programs are:

    ypserv
    ypbind
    ypxfrd
    yppasswdd

I've RTFM'ed & checked Google, but have not found any way.
Any suggestions?

Thanks,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Haim (Howard) Roman | Computer Center
roman@jct.ac.il | Jerusalem College of Technology, ISRAEL
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