Help with using MLN as a user

David Miller | 7 May 2007 22:23

Considering Mln instead of home-grown solution

Hi, I have been using UML for partitioning services. Sometimes I
let UML use block devices through an encrypted loopback device
handled by the host.  I've been managing my virtual machines
with a bunch of shell scripts which set up a chroot jail,
and bring up encrypted loop devices where necessary.  The 
scripts assign UIDS and loop devices dynamically from a pool.

Lately I've been thinking about improving my shell scripts,
maybe writing something in perl with a nice web interface.
Before I do that I want to make sure I am not inventing any
unecessary wheels.

Mln seems to do alot of what I want, but not all. 

How easy would it be to extend Mln to choose UIDS for UML dynamically, 
prepare loop devices, and setup a chroot jail?  

Can Mln use bridges with uml? The docs suggest that only xen
instances can use bridges. I need bridges so I can filter with
iptables and bridge-netfilter.

I am perl literate.

Thanks, David.

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John Sechrest | 7 May 2007 23:28

Re: Considering Mln instead of home-grown solution


David Miller <dave@...> writes:

 % Mln seems to do alot of what I want, but not all. 

 % How easy would it be to extend Mln to choose UIDS for UML dynamically, 
 % prepare loop devices, and setup a chroot jail?  

 I don't think we have the automatic UID choice. But we do have a per user choice.
 don't think it would be a particularly difficult thing to do. 

 % Can Mln use bridges with uml? 

 Yes, you can use bridges with UML. We had full UML networks set up. 

 % The docs suggest that only xen
 % instances can use bridges. I need bridges so I can filter with
 % iptables and bridge-netfilter.

 Yes, we had this working with multi-user UML configurations where several 
 different users all used the same bridge and build thier own network as a group. 

 % I am perl literate.

 It should be relatively straight forward work.

-----
John Sechrest          .         Helping people use
                        .           computers and the Internet
                          .            more effectively

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