[CentOS-virt] Can KVM be run headless?
Hi All, Can KVM be run Headless, like Virtual Box? If so, how do I open a window to it? How do I start and stop it? Many thanks, -T ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Can KVM be run headless?
I own a few headless centos servers running kvm. Vnc-server is probably easiest to setup to access the server's desktop. Or use ssh if you don't want a gui desktop on the server. I use the ultravnc viewer on my windows PC to access centos. Linux vm guests can run vnc as well, and windows vm guests have remote desktop, of course. SPICE is a new way to access guests, but I haven't figured out how to use it yet... ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Can KVM be run headless?
On 11/10/2010 06:46 PM, compdoc wrote: I own a few headless centos servers running kvm. Vnc-server is probably easiest to setup to access the server's desktop. Or use ssh if you don't want a gui desktop on the server. I use the ultravnc viewer on my windows PC to access centos. Linux vm guests can run vnc as well, and windows vm guests have remote desktop, of course. SPICE is a new way to access guests, but I haven't figured out how to use it yet... Please forgive the redundancy of my question here. If I am running a windows client, I would run something like Ultra VNC server. And on my host, communicate with something like krdc. Am I correct? How do you start and stop your headless machines? Many thanks, -T ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Can KVM be run headless?
Greetings,
- Original Message -
On 11/10/2010 06:46 PM, compdoc wrote:
If I am running a windows client, I would run something like
Ultra VNC server. And on my host, communicate with something
like krdc. Am I correct?
There are a few ways to do it.
If I'm on a Linux box (which I am 99.9% of the time), I ssh -X into the host
running the KVM virtual machines, and run virt-viewer {vm-name} and a
graphical display of the machine pops up. If I just want text access, I ssh
into the VM directly. If I want to run just one graphical app, I might ssh -X
into the VM.
If you are on a Windows client then you can use an ssh client (PuTTY for
example) or if you want the GUI stuff, you can install an Xserver app on
Windows and tunnel the X traffic over ssh. A nice free Xserver for Windows is
Xming.
If you would prefer to run a remote display protocol server inside of the VM
and connect with that you can install vnc-server or No Machine's NX server. NX
is a ton faster but the free version (not open source but free of charge)
limits you to two user connections which is plenty for most people on a server.
Then you install the vnc-client or NX client on your Windows box and use that
to connect to the remote display server in the VM.
How do you start and stop your headless machines?
You can use virt-manager if you have GUI access to the host or you can use the
command line tool virsh. For example:
virsh list --all (Shows all VMs on the host and shows their status)
virsh start {vm-name} (Starts a VM)
virsh shutdown {vm-name} (Shuts down your VM)
You really should check out Red Hat's Virtualizaiton Guide. They have a book
quality guide that explains KVM, virt-manager and virsh.
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/index.html
RHEL6 just came out today and they have greatly enhanced virt-manager and
KVM... and you can expect a CentOS 6 release in 1 - 2 months... or so goes the
pattern. If you want to see what KVM is like in RHEL6 you can check out their
updated Virtualization Guide:
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/index.html
TYL,
--
Scott Dowdle
704 Church Street
Belgrade, MT 59714
(406)388-0827 [home]
(406)994-3931 [work]
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Re: [CentOS-virt] Can KVM be run headless?
On 11/10/2010 07:30 PM, Scott Dowdle wrote: Greetings, - Original Message - On 11/10/2010 06:46 PM, compdoc wrote: If I am running a windows client, I would run something like Ultra VNC server. And on my host, communicate with something like krdc. Am I correct? Opps, I need to add a more details... because I assumed in my last reply that your VMs were Linux... but of course they can be Windows. If you want to access your Windows VM then yes, you can access it via RDP assuming you have turned on remote access in Windows. Of course virt-manager and virt-viewer can also give you VNC-based GUI access to your Windows VM, but RDP is much faster. It'll be nice when Red Hat adds SPICE support to virt-manager and virt-viewer. Expect that in RHEL 6.1 and CentOS 6.1. I believe SPICE can be done manually but I have yet to find any good instructions on how to do it. Even in Fedora 14 it is a manual process that I haven't figured out yet. Expect Fedora 15 to include SPICE support integrated into virt-manager and virt-viewer... and RHEL 6.1 to follow shortly thereafter. That's my guess anyway. TYL, Thank you! Can not wait for CentOS 6.0. Hmmm, an excuse to upgrade my machine! -T ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Can KVM be run headless?
On 11/10/2010 07:45 PM, compdoc wrote: Sorry, I don't know what krdc is. You use the network (ethernet) to connect. It is KDE's vnc client ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
