On Monday 14 November 2005 14:59, Nix wrote: > On Tue, 8 Nov 2005, Jeff Dike prattled cheerily: > > On Tue, Nov 08, 2005 at 01:09:06AM -0600, Rob Landley wrote: > >> > So I don't care about systemcall interception or anything like that, > >> > >> *blink* *blink* > >> > >> Ok, you want user mode linux, but you don't want it to actually run user > >> processes, nor do want it to be able to intercept system calls. > >> > >> Um... What's left? > > > > Only all of Linux. It so happens that I want exactly the same thing for > > libUML, except I haven't had time to do anything about it.
> I've long wanted to do the same sort of thing, I guess you would like to run userspace processes or at least to call libUML to configure something (but I don't think you can ask a kernel to do so much, without allowing it to run userspace processes)... > to do with a UML the same > sort of thing you can do with a real Linux box: that is, set up > networking and a bridging firewall, > then halt it: I.e. "shutdown now" without -h? Halt without poweroff? > the kernel keeps > processing network packets and firewalling and bridging them perfectly > well, but attackers now have *real* trouble changing the configuration. _BLINK_ _BLINK_ Is this a _documented_ feature 8-() ? > You stop it with kill() on the host, or mconsole; as it's halted and all > fsen are unmounted and so on, you're safe from filesystem corruption. > > When combined with CONFIG_NETCONSOLE, you can even keep an eye on it. :) > > The necessary hack looks quite simple: I just haven't got around to it. -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
