similar to: Centos 6 - Networking: Some Queries -- GURUS HELP PL

Displaying 20 results from an estimated 1100 matches similar to: "Centos 6 - Networking: Some Queries -- GURUS HELP PL"

2012 Jan 14
3
Centos 6.2 / KVM troubles with network
Hi, I have installed CentOS 6.2 x86_64 and KVM/Qemu and I have some troubles with network. The first case: ----------------- The configuration is: - CentOS 6.2 (hardware machine) has one Ethernet interface with static IP address (eth0). - Virtual machine has bridge network interface with eth0 interface on CentOS 6.2. This bridge is created using wizard integrated with virt-manager. - Bridge
2010 Aug 10
1
kvm with bridged network
hi, we like to use our server to host many guest system. we use these guests as test for our product testing which can be installed trough pxe install (we reinstall these guest very often). unfortunately it''s not possible to use routed network with pxe boot. so we _need_ bridged setup kvm with config as described in:
2010 May 18
1
problem with bridged network for a kvm guest
I'm having trouble with the bridged network setup. I'm new to kvm, but I got a window xp sp2 guest set up without trouble a few days ago. I followed the instructions in the RH virtualization guide, and all was fine until I had to reboot the host machine a few days later. Then, I lost networking altogether on the host machine. I lost track of all the things I tried, but finally got
2015 Aug 27
3
virt-manager with dhcpd running on same machine
If I have dhcpd running on my machine, and I wish to run virt-manager on the same machine.... How do I do that - its telling me an error for starting the network and the error is that DHCPD is already running - port in use. Thanks, Jerry
2011 Jan 18
3
KVM host question about host firewall
Hello All: I'll ask this in the virt list later if this is not the appropriate forum... Yesterday I was troubleshooting an issue with a KVM host. I was unable to access the DNS service on a KVM virtual machine. After verifying that the vm allowed through the DNS ports (53 on UDP/TCP) and still being unable to access, I was able to connect immediately after allowing those ports on the
2012 Feb 03
4
configure network bridge listing bridged intefaces
Hi all, Having a 4 NIC server, I want to bridge eth2 and eth3, with a bridge named br0. Searching the web I only found about creating a file /etc/sysconfig/network-scripts/ifcfg-br0, but did not find where to explicitely list what ports will be bridged. Where is it configured? Thank you. -- RMA.
2012 Feb 07
6
my notes on bond, bridge, network, kvm, host and virtual so far
I put this page together just so I won't spam the board anymore begging for help..lol http://bobhoffman.com/vmissue.html This shows a working effort of bonded eths, bridged into a vm, and a few other things. The only missing thing is something on the host that ends up putting the VM internet connection into some kind of limbo. Whether it is hardware related, bug related, libvirt nat
2010 Nov 26
4
Centos and Bridging
Hello, Presently I am running CentOS release 5.5 (Final). I am looking to setup bridging as I would like to setup some KVM virtual hosts on my system as a test lab. I am following the the instruction at this site > http://tldp.org/HOWTO/BRIDGE-STP-HOWTO/index.html but I cannot figure out where I am going wrong and would be thankful if someone could point me in the right direction. Here
2014 May 01
3
p2v conversion questions
Hi, I am in the process of converting a w2k8 physical server to C6.5 kvm. In reading https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/V2V_Guide/sect-V2V_Guide-Configuration_Changes-Configuration_Changes_for_Windows_Virtual_Machines.html It says that virtio-win rpm is required. I know that the virtio-win rpms are not available for Centos 6.5 but the drivers are
2015 Sep 22
1
Trouble installing KVM
<div style="FONT-FAMILY: Arial; COLOR: rgb(0, 0, 0); FONT-SIZE: 12px">Hello All,<br /><br />I'm trying to install KVM on a test CentOS 6 server, running the following command, and getting the following result. I suspect the repositories my system is trying to reach out to aren't carrying the packages for KVM, but I'm not sure.<br /><br />Not sure
2015 Jan 09
1
Libvirt to return the ip address instead of the hostname during migration
Hi all, We are working on nova live-migration using Ceph and trying to work around the problem where vm migration fails if name resolution is not enabled in a cluster. See the link, https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Host_Configuration_and_Guest_Installation_Guide/App_Migration_Address.html We have managed to work around this by setting
2012 Feb 03
3
Setting up a pci passthrough device
I have been investigating pci pass-through for virtualized guests and the documentation I have found seems to me to lack a certain consistency in its example. This may be due to my not understanding what it is trying to inform me. What I wish to do is to configure a pci multi-port serial i/o card for use by a single virtual host. I start by running lspci -v on the host to identify the serial
2015 Jan 07
0
libvirt bridges rhel7
Hi, In RHEL5/6 we have been able to create bridges on our hyper-visor of a number of vlans (eg. em1 -> em1.483 -> br483) We would be able to see this br483 in the virt-manager drop down network choice at the end of creating a new host. On RHEL7 we are not using NetworkManager per the documentation[0] for bridges (and because it is not worth it). So a RHEL7 virt-manager (0.10.0) when
2011 Sep 02
0
Network configuration on KVMs
In the Redhat EL6 virtualization guide ( http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt.html ) I read this: # Configure iptables Configure iptables to allow all traffic to be forwarded across the bridge. # iptables -I FORWARD -m physdev --physdev-is-bridged -j ACCEPT # service iptables
2016 Sep 28
4
Virtualization Networking
Hello, I'm a little confused on which networking option I need to choose when setting up a VM. I set up two VMs this past weekend both with NAT. Both able to were access the internet. The first one, I created in my / file system but didn't really have the space so I deleted it. The second one, I created in /home/kvm, but deleted it as well when I couldn't access it FROM the
2013 Jun 01
1
Re: About the change of a VM's vcpu count in runtime?
On 06/01/2013 03:16 PM, Dennis Chen wrote: > On 05/29/2013 04:28 AM, Eric Blake wrote: >> On 05/28/2013 02:24 PM, Eric Blake wrote: >> >>>> So the question is: is there any method I can't find yet to change the >>>> vcpu count of a running vm dynamically? >>> Wait for newer qemu and libvirt, or else pitch in and help write >>> patches.
2002 Jan 20
1
Failed to boot from one particular system
Hi all, Last month we received the following mail from one of our users; apparently, his system does not set register DL to the boot drive number, so the rest of the process fails. Unfortunatelly, I have not been able to contact the sender of this mail, so I have not been able to gather more info about his system. I will continue trying to contact him. Does anyone know how could this be solved
2006 May 10
2
Performance issue on AIX when deleting files in a directory with a large number of files
Server: - AIX5.3 with JFS2 file systems - IBM pSeries 520 (1.9GHz p5+ CPU) - Samba 3.0.22 (and the same problem exists in 3.0.21a) - I tested Samba compiled from sources with GCC 4.0.2 and 3.4.3 same result for both. I also downloaded the AIX binary from http://us4.samba.org/samba/ftp/Binary_Packages/AIX/ and it has the same problem as well. Client: MS Windows XP SP2 We have an application that
2008 Jun 24
2
DNS query
Dear All, i have the following setup CentOS 5 server running as a primary DNS server for a long time and is working perfectly fine the server is on public IP and we have abt 5 zones apart from the reverse n local zone now our sister company have recently setup their own DNS and we are supposed to use it. earlier our cleints were using a host file now on my master dns server in /etc/named.conf
2013 May 28
3
Re: About the change of a VM's vcpu count in runtime?
On 05/28/2013 02:24 PM, Eric Blake wrote: >> So the question is: is there any method I can't find yet to change the >> vcpu count of a running vm dynamically? > > Wait for newer qemu and libvirt, or else pitch in and help write patches. You might not have to wait that long - if you could help test these patches, it would be appreciated: