Messages in this thread | | | Date | Tue, 10 Nov 2009 11:43:23 -0600 | From | "Chris Friesen" <> | Subject | sunrpc port allocation and IANA reserved list |
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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
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