Debian Developers - Re: installing TCP programs when RPC programs are running

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Author Re: installing TCP programs when RPC programs are running
Andrew Suffield

2004-10-07, 7:49 am

On Thu, Oct 07, 2004 at 01:31:24AM +0200, Lo?c Minier wrote:
> This causes random errors -- like on my system -- when a RPC service is
> already listening and you install a program which should listen on a
> standard port.


> I see no obvious solution to this:
> - you can't know in advance which port will be needed when new packages
> are intalled,
> - you can't move a RPC service to another port when you notice you need
> it.
>
> The best option would be for RPC services to ue a "port pool", not
> overlapping standard ports, but this might be impossible.


Yes, sunrpc sucks. It's wanton consumption of address space is just
one of many ways in which it makes the life of a sysadmin miserable.

Essentially the problem is that there isn't enough space in the
privileged port range left to pull this off. Whatever you pick, odds
are high that *something* uses it as a fixed port number, so sooner or
later it'll break for somebody.

The proper approach would have been for sunrpc to carve out a few
ports exclusively for its own use, but it's a bit late for that now.

--
.''`. ** Debian GNU/Linux ** | Andrew Suffield
: :' : http://www.debian.org/ |
`. `' |
`- -><- |

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