search for: network_configuration

Displaying 14 results from an estimated 14 matches for "network_configuration".

2012 Jun 01
1
Centos 6 - Networking: Some Queries -- GURUS HELP PL
With NM_Controlled=No in the ifcfg file, NM applet shows "Not Managed", so the ifcfg file is being read. What is the extent of interaction of NetworkManager with ifcfg files is unknown....very little information on the net. Seems Network Manager is still mostly unplublished compared to other utilities. Any pointers to literature on this or macro architecture of NM would be appreciated,
2010 Aug 10
1
kvm with bridged network
...rough 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: http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6-Beta/html/Virtualization/sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt.html is it possible with shorewall? eg how can i add this rules to shorewall: iptables -I FORWARD -m physdev --physdev-is-bridged -j ACCEPT or is it enough to add bridge to the interfaces file? thanks in advance. regards. -- Levente...
2012 Jan 14
3
Centos 6.2 / KVM troubles with network
...+ I forced one IP addres for both eth0 and br0 interfaces. ifconfig shows that eth0 has no IP address, br0 has IP address. So, I test this case. - I use Red Hat documentation: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html-single/Virtualization/index.html#sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt) - On virtual machine I created bridge connection with br0 interface on CentOS 6.2. - All machines have all connections. - All firewalls and SELinux are closed. NFS server on CentOS 6.2 (hardware machine) doesn't serve exported file system. The questions: 1. Is...
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
2016 Sep 29
0
Virtualization Networking
...probably requires the most setup: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/ch-Configure_Network_Bridging.html https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-Network_configuration-Bridged_networking.html You can also use macvtap, which doesn't require the use of a special bridge interface, but you do have to enable hairpin mode if you want the KVM guest to be able to access its guests. I honestly can't find much useful documentation. https://access.redhat.com/d...
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 save # service iptables restart Disable iptables on bridges Alte...
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 Jan 07
0
libvirt bridges rhel7
...ommand in virsh on RHEL6 and RHEL7 both are identical. I guess the question how does a libvirt client like virt-manager determine a iface is a usable bridge? [0] - https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-Network_configuration-Bridged_networking_with_libvirt.html Thanks, derek -- Derek T. Yarnell University of Maryland Institute for Advanced Computer Studies
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
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
2016 Sep 30
2
Virtualization Networking
...https://access.redhat.com/documentation/en- > US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/ch- > Configure_Network_Bridging.html > > https://access.redhat.com/documentation/en- > US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Ad > ministration_Guide/sect-Network_configuration-Bridged_networking.html > > You can also use macvtap, which doesn't require the use of a special bridge > interface, but you do have to enable hairpin mode if you want the KVM > guest to be able to access its guests. I honestly can't find much useful > documentation. >...
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