From owner-freebsd-security@FreeBSD.ORG  Fri Oct 20 16:39:07 2006
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Date: Fri, 20 Oct 2006 17:38:59 +0100
From: "mal content" <artifact.one@googlemail.com>
To: "Nikolay Pavlov" <quetzal@zone3000.net>, 
	"Fabian Keil" <freebsd-listen@fabiankeil.de>, freebsd-security@freebsd.org
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References: <20061020140456.GA25717@zone3000.net>
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Cc: 
Subject: Re: Binding Squid to reserved port (was: mac_portacl)
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On 20/10/06, Nikolay Pavlov <quetzal@zone3000.net> wrote:
> On Friday, 20 October 2006 at 16:57:06 +0200, Fabian Keil wrote:
> > Nikolay Pavlov <quetzal@zone3000.net> wrote:
> >
> > > I am trying to implement reverse proxy using squid with mac_portacl,
> > > but i have problem while binding squid to port 80.
> > > Am i missed something?
> > >
> > > Here is my mac_portacl variables:
> > >
> > > # sysctl security.mac.portacl.
> > > security.mac.portacl.enabled: 1
> > > security.mac.portacl.suser_exempt: 1
> > > security.mac.portacl.autoport_exempt: 1
> > > security.mac.portacl.port_high: 1023
> > > security.mac.portacl.rules: uid:100:tcp:80
> > >

The mac_portacl page in the handbook says that you need to disable normal
UNIX bind restrictions on ports. Have you tried this:

# sysctl net.inet.ip.portrange.reservedlow=0
# sysctl net.inet.ip.portrange.reservedhigh=0

MC