linux-kernel - Re: Possibility to adjust the only-root-can-bind-to-port-under-1024 limit

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Message-ID: <4757EBC9.2050800@univits.com>
Date:	Thu, 06 Dec 2007 13:32:09 +0100
From:	Mikael Ståldal <mikael.staldal@...vits.com>
To:	casey@...aufler-ca.com
CC:	linux-kernel@...r.kernel.org
Subject: Re: Possibility to adjust the only-root-can-bind-to-port-under-1024
   limit

Casey Schaufler skrev:
>> How do you protect ports greater than 1024 from any user binding to them?
>> E.g. port 1080.
> 
> Should the OS manage port number allocations? I don't think so
> based on the notion of ports being names in an uncontrolled flat
> namespace. The whole problem is that people want to make assumptions
> about the applications providing services on a particular port, and
> no amount of OS control is going to solve that one.

This means that the OS should allow any user to bind to all ports, even those <1024.

/Mikael
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