On Sun, 2008-03-16 at 15:33 -0500, Les Mikesell wrote:
> John R Pierce wrote:
>
> >>
> >> I am using open source Alfresco( alfresco.com ), written in java,
> >> which has own code for FTP, CIFS (running on tomcat apache and java).
> >> I need to run tomcat5 as root in order to achieve that alfresco will
> >> bind ftp cifs on privileged ports (21 , 135 ...).
> >>
> >> I am wondering, it is possible to allow user to bind on some
> >> privilleged port. Like having whole alfresco running under user
> >> alfresco and not root and able to bind on privileged ports?
> >>
> >
> >
> > the way thats conventionally done is by having a small SUID program
> > (with the S bit set) which is invoked from the main program and opens
> > the privileged socket, then hands it back to the unprivileged rest of
> > the program. I have no idea how you'd do this with java short of using
> > native code interfaces.
> >
> > that seems like a huge and very complex system, running that whole thing
> > as root would be a nightmare from a security audit perspective.
>
>
> Another approach that may or may not work with Alfresco is to configure
> the application to use high-numbered ports instead of the standard ones,
> then use iptables to redirect connections to the standard port numbers
> to the ones where the application runs.
----
you may recall that in December, I was faced with this very issue but on
the Fedora List...probably the wrong list since I'm actually using it on
a CentOS-5 system...
https://www.redhat.com/archives/fedora-list/2007-December/msg01169.html
and I suggest that you may recall because you participated in the
thread.
I was never able to figure out how to redirect those ports...though I
would change in a heartbeat if I could figure out how that is done.
Craig
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