similar to: XEN/bridge mode

At work I have a script that provisions a vm for use by employees. One step in this process is to fetch hadoop, which we happen to get from cloudera. I noticed the script always failed when I used libvirt's default networking (nat) but worked fine when I used user mode networking. My instinct is that this is related to (potentially uncommon) network traffic from the server in question, and

Hello, I came across an interesting problem in my home lab a few weeks ago as I'm prepping for my RHCE exam using Michael Jang study guide. I've been at this for days now, and I still can't wrap my head around how two or more virtual networks in default NAT configuration are even allowed to communicate with each other despite what the libvirt documentation said. Here's the

On Tue, Jun 20, 2017 at 10:05:19AM +0200, Martin Kletzander wrote: >On Tue, Jun 20, 2017 at 02:26:59AM -0400, Travis S. Johnson wrote: >>Hello, >> >>I came across an interesting problem in my home lab a few weeks ago as I'm >>prepping for my RHCE exam using Michael Jang study guide. I've been at this >>for days now, and I still can't wrap my head around

Hi all, I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding networking between them. The 2 RHEL4 system's use default bridge virbr0 and get ip's of range 192.168.122.0/24 (192.168.122.207, 192.168.122.167) I created another bridge (virbr1) with NAT forwarding (no dhcp). The network i choose was 192.168.100.0/24. And the third system (RHEL6) was assigned static ip-addres

Hi everyone. Those are the iptables forwarding rules associated with the two virtual networks on my machine: ----------------------------------------------------------------------------------------- -A FORWARD -d 192.168.100.0/24 -o virbr1 -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.100.0/24 -i virbr1 -j ACCEPT -A FORWARD -i virbr1 -o virbr1 -j ACCEPT -A FORWARD -o

I am running Fedora 16 64bit and installed libvirt. I have the VM running with arm emulation with this one issue I can't figure out. I used Virtual Machine Manager to manage the VM and can access its console there. The Ethernet appears to be eth1 and the guest can set an IP on it etc. However, I cannot see any traffic from the Host when dumping any of the interfaces. I've tried

>Sorry, have to correct myself. Had to much to do today on OpenShift. >There is no Docker involved in what we discuss. The firewall rules for >the host bridge devices get created by libvirtd. Thanks I was using iptables and not converted to firewalld. I am doing so now. Will I need to delete the VM and re-add it ? I am rebooting first. Jerry

This is a continuation of the thread about redhat vs centos and the thought of moving from centos due to redhats new business model. Forgive the length, but I had to share. I went ahead and downloaded the 5 year supported version of ubuntu server. You think centos/redhat is a bit tough or not polished? One day with ubuntu server and you will look at centos install and setup as a god! Where do

Hello all, I’m currently trying to figure out how to forward ports to guests that are on a NAT Network. I have followed the directions on https://wiki.libvirt.org/page/Networking under the “Forwarding Incoming Connections” Section and get connection refused when attempting to connect. System: Ubuntu Server 18.04.1 Virsh / LibVirtd Version: 4.0.0 Here’s the contents of /etc/libvirt/hooks/qemu  

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Gao feng @ 12/12/2013 10:18 PM: > I saw there are two bridge br0 and virbr0 in your host. which > bridge the libvirt uses? what's result of #virsh net-list ? well i don't quite understand bridges and their function, i'm kinda just following directions. br0 replaced eth0 though in my interfaces file according to this guide[1] i

On 12/16/2013 04:47 AM, Gao feng wrote: > On 12/14/2013 10:51 AM, scar wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA256 >> >> Gao feng @ 12/12/2013 10:18 PM: >>> I saw there are two bridge br0 and virbr0 in your host. which >>> bridge the libvirt uses? what's result of #virsh net-list ? >> well i don't quite understand bridges

I am fairly new to xen and am trying to build a new guest using virt-manager. When I get to the screen where you can choose virtual or shared physical device there are no physical devices to choose from. Is there some step that I have missed while setting up my Dom0? -Joel Coopersmith Sr. Systems and Networking Analyst joel.coopersmith@accenture.com

Hello, i have a little question. My system: ip route: 0.0.0.0/1 via 10.8.0.5 dev tun0 default via 192.168.2.1 dev br0 proto static metric 425 10.8.0.1 via 10.8.0.5 dev tun0 10.8.0.5 dev tun0 proto kernel scope link src 10.8.0.6 88.198.140.127 via 192.168.2.1 dev br0 192.168.2.0/24 dev br0 proto kernel scope link src 192.168.2.101 metric 425 192.168.122.0/24 dev virbr0 proto kernel

Hi, I am new to rails and I have setup Typo on my site. One little thing bugs me, the login page doesn''t give focus to the "user_login" field. I was wondering what do I need to do to make rails help with this? I have seen some simple inline javascript to set the focus, sort of like: document.<form_name>.user_login.focus() However the rails view doesn''t

Just created the first completely new Xen VM with the Virtual Machine Manager after 5.0 became 5.1 and I notice these two differences: - there's now virbr0 instead of xenbr0. Which means I have now xenbr0 and vitbr0 interfaces running. As virbr0 just the new name for xenbr0? If so, can I just change that name in the older configuration files, so that all use the same interface name? -

(If this is a double post, I apologize, my email client crashed when I first sent it) I need some help to configure a secure network on my Xen server. I have been looking online and it seems a I need a routed network. But I am having a terrible time implementing it. My setup: Xen 3.4.2 CentOS 5.5 Dom0 1 NIC (eth0) All guests will be HVM What I want to do is something similar to a firewall

Perhaps a stupid question, but i will give it a try: I have two machines on libvirtd session and network on usermod. Can i (somehow) cross these two machines ? machineA: ip addr add 10.10.10.101/24 dev eth0 ip route add default via 10.10.10.102 dev eth0 machineB: ip addr add 10.10.10.102/24 dev eth0 ip route add default via 10.10.10.101 dev eth0 -- Evaggelos Balaskas - Unix System Engineer

CentOS-6.5 i86_64 qemu-kvm-0.12.1.2-2.415.el6_5.4 MS-Windows v7proSP1 We have installed a MicroSoft Win7 system as a guest and have joined it to our MS AD domain. The system runs and has internet access. However, the IPv4 address it obtains and the gateway it is assigned are both sourced from the virtual machine host system and not from our AD DC DHCP server. To clarify, the virbr0 IP address

On Friday 22 November 2013 01:24 PM, Gao feng wrote: > On 11/22/2013 03:47 PM, Sherin A wrote: >> Hello, >> >> I am not able to see vrbr0 in my box. Can some one help me with this ? . I am trying KVM+libvirt and planing to use Routed mode. I hope this virbr0 must be up for using this . I can give an >> strace too. >> >> OS : Debian , kernel 3.12.0

Hello, I am not able to see vrbr0 in my box. Can some one help me with this ? . I am trying KVM+libvirt and planing to use Routed mode. I hope this virbr0 must be up for using this . I can give an strace too. OS : Debian , kernel 3.12.0 libvrit version : 0.9.8 ____________________________________________________________________ root@:~# ifconfig br0 Link encap:Ethernet HWaddr