similar to: OpenSSL Heartbeat exploit agains KVM guest systems

I am running NOX controller with a python script that prints out the destination mac and the source mac for each packet arriving at the now controller and then floods it out. So here's what happening: With em1 connected, all the packets that arrive at em1 are coming to the controller and printing out the details. However, without em1 connected to the OVS, when I have the following setup:

HI I have 15 vm (libvirt + kvm) with a network brigde and ip address like 192.168.0.1 VM1 192.168.0.2 VM2 192.168.0.3 VM3 ..... The vm are use by other people and I want to be sure that if someone change the ip of VM3 to 192.168.0.1 it will filter it network traffic for him and can't flood the VM1 What the best way to achieve this Hope I m clear enough

libvirt-users@redhat.com TCP Tunnel Info I've been looking at the TCP Tunnel network feature as a potential replacement for the extra private internal networking configuration file. Usecase: This network is supposed to go from VM1 to VM2 without DHCP, DNS or any incoming/outgoing connections to the host or outside world possible. https://libvirt.org/formatdomain.html#elementsNICSTCP *

Hello, My testing machine has 2 quad-core CPU (It supports hyperthreading, but i disable it in BIOS). I uses Xen 4.0.1 as the hypervisor. When I use 8 VMs to conduct a test, CPU affinity of the VMs is very strange. Like this: vm_name vcpu_num cpu_affinity Domain-0 8 any VM1 4 1,3,5,7 VM2 4 1,3,5,7 VM3 4 1,3,5,7 VM4 4

Hi, As told in "Control Groups Resource Management" libvirt page : Legacy cgroups layout Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy libvirt/{qemu,lxc}/$VMNAME which was rooted at the point in the hierarchy where libvirtd itself was

Hi all, i need config xen with this ___________ __________ |VM1 |----------------bridge1-------------------| | |__________ | | | ____________ | |-----BALBLA |VM2 |

Hi Michael, Looks like the discussions tapered off, but do you have a plan to implement this if people are eventually fine with it? We want to extend this to support multiple VMs. On Mon, Aug 31, 2015 at 11:35 AM, Nakajima, Jun <jun.nakajima at intel.com> wrote: > On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote: >> Hello! >> During the KVM

Hi Michael, Looks like the discussions tapered off, but do you have a plan to implement this if people are eventually fine with it? We want to extend this to support multiple VMs. On Mon, Aug 31, 2015 at 11:35 AM, Nakajima, Jun <jun.nakajima at intel.com> wrote: > On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote: >> Hello! >> During the KVM

Hi, How can I figure why some domain is still in zombie state, like these ones: master-xen root /vm/ttylinux# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 574 1 r----- 90.5 Zombie-small-11 28 0 1 ---s-d 0.9 Zombie-small-17 34 0 1 ---s-d

hi alll.. i want to find the xen domain''s state using xm domstate command, domstate command works fine inside virish but when i try with xm like [xm domestate VM_NAME] its giving an error saying subcomand domestate not found. i just want to shutoff the xen virtual domains using a scrip to take backup. so i just want to make sure that the domain are shutdown successfully after

I posted a problem with oplock previously, but am guessing it goto lost in an earlier thread with the same subject line, so here goes another shot: Using Samba 3.0.22 on a Gentoo box (kernel 2.6.15) I've a situation where file locking does not seem to be functioning as expected, in that more than one user can open and write to a file without any notifications being displayed about the file

Hi Michael, When you talk about VFIO in guest, is it with a purely emulated IOMMU in Qemu? Also, I am not clear on the following points: 1. How transient memory would be mapped using BAR in the backend VM 2. How would the backend VM update the dirty page bitmap for the frontend VM Regards Varun > -----Original Message----- > From: qemu-devel-bounces+varun.sethi=freescale.com at nongnu.org

Hi Michael, When you talk about VFIO in guest, is it with a purely emulated IOMMU in Qemu? Also, I am not clear on the following points: 1. How transient memory would be mapped using BAR in the backend VM 2. How would the backend VM update the dirty page bitmap for the frontend VM Regards Varun > -----Original Message----- > From: qemu-devel-bounces+varun.sethi=freescale.com at nongnu.org

Thank you, that's it! virsh vol-list storage VM1   /dev/storage/VM1.img VM2   /dev/storage/VM2.img VM3   /dev/storage/VM3.img [dead] VM4   /dev/storage/VM4.img [dead] A last stupid question (I don't want to make a big mistake ...): Is virsh vol-delete VM3 virsh vol-delete VM4 the right command to get rid of the offending ones? Am 14.05.2020 um 19:10 schrieb Alvin Starr: > >

On Mon, Aug 31, 2015 at 11:35:55AM -0700, Nakajima, Jun wrote: > On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote: > > Hello! > > During the KVM forum, we discussed supporting virtio on top > > of ivshmem. I have considered it, and came up with an alternative > > that has several advantages over that - please see below. > >

On Mon, Aug 31, 2015 at 11:35:55AM -0700, Nakajima, Jun wrote: > On Mon, Aug 31, 2015 at 7:11 AM, Michael S. Tsirkin <mst at redhat.com> wrote: > > Hello! > > During the KVM forum, we discussed supporting virtio on top > > of ivshmem. I have considered it, and came up with an alternative > > that has several advantages over that - please see below. > >

Libvirt doesn't care about security during hot add disk images. It even accepts addition of disk images of other guest running on the host. Steps followed to create this scenario : Started two VMs with following security configurations: vm1: <seclabel type='dynamic' model='selinux' relabel='yes'>

I am using a VM with CentOS 5.8 x86_64 under KVM. I only have console access to the VM through a virtual console (web based). Tonight, after a routine "yum update", I did a "shutdown -r now" due to kernel update and the VM won't start. See console screenshot vm1.png: https://vmail.noa.gr/files/vm1.png There is an error (which I haven't seen before): type=1404

Hi there, I have a question regarding the shares option of the cputune section. I want to illustrate my question with the following example. Let's assume I have two virtual machines like the following on four dedicated core with two threads each: VM1: <cputune> <shares>512</shares> <vcpupin vcpu="0" cpuset="0"/> <vcpupin

Hi. I am a student at University of Zurich and I''m doing a homework about Cloud Computing regarding accounting and billing. Because the "big" players use Xen Hypervisor I installed a Xen (3.3.0) on an Ubuntu 8.04 to test some things and get more familiar with Xen regarding accounting. I have two questions: 1. CPU monitoring +++++++++++++++++ I have discovered something