On Friday 02 February 2007 11:05, Nicolas Boullis wrote:
> Hi,
>
> The port channel looks like a good way to give remote access to the
> consoles of my UML guests.
> Something like "con0=fd:0,fd:1 con=port:9000" would be almost fine.
>
> My goal is to have a pool of hosts that run a (larger) pool of guests.
> Then, if I want to connect to the console of a specific guest, I have to
> know the host it runs on and the port it listens on.
>
> I think it would be easier to have a management IP assigned to each
> guest. Then the host would take the management IP of all the guests it
> runs, and all the guests would listen on the same port, each on its own
> IP. Then I wouldn't have to know where a guest runs, I would only have
> to know its IP.
>
> Hence, I would need something like "con=port:10.0.0.5:9000". As far as I
> can read the code, it's not possible yet. But do you think it would be
> feasible, worth the effort, and prone to be merged?
You require the host admin to assign new IPs to the host, so it cannot be 
directly supported (I mean, even if we merge the code the end user must still 
do a lot of manual setup). 

Also, security is a concern - you'll do this in a private environment, but 
giving the user semi-automated tools for such stuff is not exciting. con=port 
is not ideal for non-local connection (we listen on *, not on lo, and this 
can already be bad but...).

Wouldn't it be simpler to setup port forwarding on the host (either with 
iptables or with a forwarding daemon) than to add this code to UML itself? 
Optimization is not a concern here, maintainability is.

This is just a first opinion, not a decision, so discussion and further ideas 
are welcome.
-- 
Inform me of my mistakes, so I can add them to my list!
Paolo Giarrusso, aka Blaisorblade
http://www.user-mode-linux.org/~blaisorblade
Chiacchiera con i tuoi amici in tempo reale! 
 http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com 


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