From: "Chris Friesen" <cfriesen@nortel.com>
To: netdev@vger.kernel.org, Linux kernel <linux-kernel@vger.kernel.org>
Subject: sunrpc port allocation and IANA reserved list
Date: Tue, 10 Nov 2009 11:43:23 -0600 [thread overview]
Message-ID: <4AF9A63B.6010101@nortel.com> (raw)
By default sunrpc ports are allocated at random in the range 665-1023U.
However, there are many ports within this range which have been
reserved by the IANA (and others like port 921 which are not formally
reserved but are "well-known").
Given that a userspace application can be stopped and restarted at any
time, and a sunrpc registration can happen at any time, what is the
expected mechanism to prevent the kernel from allocating a port for use
by sunrpc that reserved or well-known?
Apparently Redhat and Debian have distro-specific ways of dealing with
this, but is there a standard solution? Should there be?
The current setup seems suboptimal.
Chris
next reply other threads:[~2009-11-10 17:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-10 17:43 Chris Friesen [this message]
2009-11-10 17:53 ` sunrpc port allocation and IANA reserved list Ben Hutchings
2009-11-10 18:37 ` Chris Friesen
2009-11-10 18:48 ` Chris Friesen
2009-11-10 20:26 ` Trond Myklebust
2009-11-10 21:06 ` Chris Friesen
2009-11-10 21:17 ` Trond Myklebust
2009-11-10 21:58 ` Trond Myklebust
2009-11-10 21:32 ` Ben Hutchings
2009-11-10 21:34 ` Chuck Lever
2009-11-10 21:42 ` Ben Hutchings
2009-11-10 21:54 ` Chris Friesen
2009-11-10 22:14 ` Trond Myklebust
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