From: "Sven Köhler" <skoehler@upb.de>
To: Nick Craig-Wood <ncw1@axis.demon.co.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: allow process or user to listen on priviledged ports?
Date: Thu, 25 Dec 2003 13:18:10 +0100 [thread overview]
Message-ID: <3FEAD582.10908@upb.de> (raw)
In-Reply-To: <20031225104526.GA10239@axis.demon.co.uk>
> I would give your application this capability (from #include "linux/capability.h")
>
> /* Allows binding to TCP/UDP sockets below 1024 */
> /* Allows binding to ATM VCIs below 32 */
>
> #define CAP_NET_BIND_SERVICE 10
>
> You do this with a setuid wrapper which drops all capabilities but
> that one and then runs your application.
Thx for the answer! That's exactly what i search for.
I will try to write such a program. It seems that sucap keeps all
capabilities and drops none. Depending on the other capabilities, that
could be a bad idea.
Thx
Sven
next prev parent reply other threads:[~2003-12-25 12:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-24 16:43 allow process or user to listen on priviledged ports? Sven Köhler
2003-12-24 17:02 ` Michael Buesch
2003-12-24 17:23 ` Olaf Dietsche
2003-12-24 21:34 ` Adam Sampson
2003-12-24 21:59 ` Thomas Zehetbauer
2003-12-24 22:00 ` Eric
2003-12-25 10:45 ` Nick Craig-Wood
2003-12-25 12:18 ` Sven Köhler [this message]
2003-12-25 17:46 ` Sven Köhler
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