Here are some tips&tricks for IBM users:

From Chris Moller (moller@vnet.ibm.com, moller@futserv.austin.ibm.com):

"Under IBM weirdness, after you modify /etc/services or /etc/inetd.conf,
you have to update the ODM by running, from root, the following:

        inetimp
        chrctcp -S -c inetd -f debug='no' -f file='/etc/inetd.conf'

or the changes don't take effect.  Other than that, everything worked
fine out of the box."



From James Carlson <carlson@xylogics.com>:

One minor note, this program suffers from the same problem that a lot
of other kernel-reading programs do on AIX.  Gcc doesn't align the
contents of the user structure correctly.  Users have to add a "long
foo" element right before U_irss in a private copy of sys/user.h in
order to make it work.