Re: [libvirt] iptables and libvirt

2009-02-24 Thread Thomas Woerner
Ulrich Dangel wrote: On Friday 13 February 2009 19:21:10 Thomas Woerner wrote: Hi, i just got the same idea, so here are some thoughts. Some Questions: 3) What do you want to do with user-customized firewalls? I want do to port forwarding for a nat network for statically configured ip addre

Re: [libvirt] iptables and libvirt

2009-02-19 Thread Ulrich Dangel
On Friday 13 February 2009 19:21:10 Thomas Woerner wrote: Hi, i just got the same idea, so here are some thoughts. > Some Questions: > 3) What do you want to do with user-customized firewalls? I want do to port forwarding for a nat network for statically configured ip addressed. A solution co

Re: [libvirt] iptables and libvirt

2009-02-16 Thread Charles Duffy
One way to do this is to place a tiny VM (static kernel+very small initramfs [uClibc+busybox+iptables+dnsmasq]) between VM clusters and the host, rather than giving the host an IP on each cluster's bridge directly. The tool that launches it (via libvirt) appends extra files to the initramfs giv

Re: [libvirt] iptables and libvirt

2009-02-13 Thread Thomas Woerner
Karl Wirth wrote: Hi, I would like your feedback on the following idea. What if we could flexibly change the iptables rules for the different guests as they are deployed onto the node/host. The idea would be to do all of this within the iptables of the host leaving alone the iptables of the

Re: [libvirt] iptables and libvirt

2009-02-13 Thread Karl Wirth
Daniel P. Berrange wrote: > Actually I believe Karl's use case is that the host explicitly *does* > know the IP the guest is /supposed/ to be using, and wants to prevent > it spoofing someone else's IP. > Yes. This is what I was thinking. > I agree with your general point though, that when tryi

Re: [libvirt] iptables and libvirt

2009-02-09 Thread Daniel P. Berrange
On Fri, Feb 06, 2009 at 01:36:23PM -0500, Karl Wirth wrote: > Hi, > > I would like your feedback on the following idea. > > What if we could flexibly change the iptables rules for the different > guests as they are deployed onto the node/host. The idea would be to do > all of this within the ip

Re: [libvirt] iptables and libvirt

2009-02-09 Thread Daniel P. Berrange
On Sat, Feb 07, 2009 at 12:44:07AM +, David Lutterkort wrote: > On Fri, 2009-02-06 at 13:36 -0500, Karl Wirth wrote: > > What if we could flexibly change the iptables rules for the different > > guests as they are deployed onto the node/host. The idea would be to do > > all of this within the

Re: [libvirt] iptables and libvirt

2009-02-06 Thread David Lutterkort
On Fri, 2009-02-06 at 13:36 -0500, Karl Wirth wrote: > What if we could flexibly change the iptables rules for the different > guests as they are deployed onto the node/host. The idea would be to do > all of this within the iptables of the host leaving alone the iptables > of the guests themselves

[libvirt] iptables and libvirt

2009-02-06 Thread Karl Wirth
Hi, I would like your feedback on the following idea. What if we could flexibly change the iptables rules for the different guests as they are deployed onto the node/host. The idea would be to do all of this within the iptables of the host leaving alone the iptables of the guests themselves. H