Tag Info

New answers tagged

-2

Yes. There is virt-viewer for Windows http://virt-manager.org/download/sources/virt-viewer/ Update: I see you were asking about virt-manager on windows and not virt-viewer.


1

Have you tried running precompact.exe or similar tool (easiest by mounting the ISO file) on the guest first to zero out the reclaimed space? Then run the VHD compact process after that. See Compact/Shrink an Expandable/Dynamic VHD to fully recover space


0

Yes, suspending the virtual machine will save its state. As soon as you start it back up that state will be lost, so it's not a snapshot, you won't be able to resume from that state more than once. https://www.vmware.com/support/ws5/doc/ws_preserve_suspend_resume.html


1

Yes, this can be done, as long as the application-level protocol in use knows which name was connected to. HTTP knows this, because of the Host: header. TLS knows this (now), because of the "Server Name Indication" extension. I believe FTP can know this, based on some protocol extension, but if you're still using FTP, you are doomed. If the protocol ...


0

Please clarify - what do you want. At first - iptables work only with packets. It can't set user and password for proxy. But you can set redirect traffic from each VM(it's ipadress) to each own proxy server. I think iptables -t nat -A PREROUTING -i eth0 -s vm_ipaddress -p tcp —dport 80 -j DNAT —to proxy_ipaddress:port should help you.


1

Why not give Docker - Build, Ship, and Run Any App, Anywhere a try?


5

Visit your BIOS config page and check processor settings. Do you see a value of "4" for "Number of Cores per Processor"? Also, can you provide the build number of your ESXi installation? This could also be a bug (less likely).


2

Regarding your question - yes, you will loose access for all machines within this physical host. Of course, it depends which component failed. If it is disk - it is kind of problem, if it motherboard - it is much easier. In general hardware recovery is easier as hypervisor is hardware-agnostic. At this point of time there are a lot of vendor specific ...


0

For what I know, you cannot set vCPU cache parameters from the command line. Anyway, it should not change anything from a performance standpoint: the CPU is virtualized, so the guest OS has no direct control over its caches.


0

The Azure Site Recovery tools can also be used for one-way migrations from on-prem to Azure. http://azure.microsoft.com/en-us/services/site-recovery/ Each disk would be it's own VHD.


14

The specifics depend on which exact virtualization solution you use, but the idea is that you have a virtual farm, where there are a number of physical hosts with several virtual machines each. You then use some of the efficiency you gained by not needing a physical host for every VM so that you have enough overhead left to cover in the case where a physical ...


11

All virtual servers running on a physical host will go offline if the host has any sort of failure. That said, most platforms offer a high-availability solution for a single VM. Other times a system is built with multiple nodes to prevent service disruption in the event that one node goes down. If two VM nodes make up a highly available service, it is ...


5

You are right with your assumption that if the physical machine fails also the VMs get unavailable. But openstack can take care of that and start the VMs of the failed physical server on a other server or you can use a hypervisor system which is already distributed, I think vsphere can do that. You should read the openstack documentation on HA for more ...


0

I run a large proxmox cluster and have to suggest you change your backup strategy away from the built in vzdump snapshot style backups, which take ages, are always full therefore large in size and make restore of individual files extremely long winded. Consider an 'in guest' file backup solution of which there are many. Backuppc, Urbackup, bacula, amanda ...


0

You can wait a little longer, for oVirt to support hyperconverged virtualization, and migrate over. You will have a free opensource KVM based virtualization system, with local storage as gluster volumes, and central management for all. A bit of yum-updatesd or puppet/ansible/whatever, and the version control over the hosts is also established.


0

Basically you cannot, directly from the dom0 But you can from a remote machine. Xen use VNC to provide graphical access to HVM VM. If you are using opensource Xen, in the VM config file you can add a line like : vfb = [ 'type=vnc,vncdisplay=1,vncpasswd=yourpassword,vnclisten=0.0.0.0,keymap=fr' ] then from a remote machine using a vnc client you connect ...


0

Here's what works for me: <VirtualHost *:80> ServerName www.domain.com ServerAlias domain.com # [ snip some unrelated stuff ] # Redirect secondary hostnames to canonical hostname RewriteEngine On RewriteCond %{HTTP_HOST} ^domain.com$ RewriteRule (.*) http://www.domain.com$1 [R=301,L] </VirtualHost> The advantage of doing this instead of ...


0

Powershell.org has a great community and a ton of resources (including ebooks). Start looking around on there for DSC specifically. Additionally, powershellmagazine.com has some great articles on the subject.


0

I solved this problem using OVF tool. When hypervisor is deployed I wrote lines in post script which will download OVF tool and OVA and deploy it in ESXi.


0

The word "host" in the message "Changes made to some of the devices below will not take effect until the host is restarted" refers to the VMware host, ie. the server on which VMware ESXi is installed and running. In other words, it is not sufficient to restart the VM to which you want to attach the NIC. You need to restart the entire VMware server.


0

Connectivity issues are usually caused by the ZMQ library (less than 4.X.X) and/or salt version . Pleas run salt --versions-report on master and salt-call --versions-report in order to see what versions you are using. You should be running: Salt: 2015.5.3 ... ZMQ: 4.0.5 You should also try to reproduce the issue with a simple vagrant-salt demo. Notice ...


0

The communication over the Internet may, or may not, be encrypted. It all depends on the protocol which it uses. Even if it is encrypted, unless it's a widely used, heavily scrutinised protocol that is maintained and adapted according to new cryptographic findings, there's a good chance that it is horribly, horribly broken and insecure. The industry ...


0

I found that this article summarized it simply https://www.petri.com/azure-virtual-machines-sla "In Microsoft’s opinion, no single virtual machine should be so important when you’re working in Azure; it’s all a part of Jeffrey Snover’s outlook on “treating your servers like cattle, not as pets.” This can prove to be incompatible with some workloads, as you ...


0

I use similar way for syncing time after VM suspend/resume, but i think it's better to try to guess, that it should sync in the right direction and is longer than short difference, that could be fixed by NTPD. https://gist.github.com/jhrcz/7138803 PS. New centos 6.7 changelog says this could be done automaticaly with only kvm-clock clock source.


1

Yes, create a reservation for the mac on your DHCP server.


0

I had the same problem in VM settings change display from "Spice server" to "VNC server" and it should fix the problem. Issue is, that spice server only allows localhost connection by default. If you want to use spice, than you should change spice setting in hosting machine. Otherwise - use VNC.


0

Not really an answer but a check list which is complex to fill in a comment :-) Make sure you don't have other VMs or actual machines running at the same time with the same IP address. You can test this by turning off the VM you're working on and ping again to 192.168.33.10. Make sure the virtual interface on the Windows Host is not turned off. By running ...


0

Don't pass a hostname when using the -l parameter with nc. nc -l 8080 should do the trick.


0

Yes - vCenter and/or vRealize Business.


1

You're mostly correct I think - if you ONLY want to manage EC2 instances - although vagrant can easily use Ansible's dynamic inventory system: http://docs.vagrantup.com/v2/provisioning/ansible.html: Static Inventory The second option is for situations where you'd like to have more control over the inventory management. With the ...


2

IIRC Hyper-V snapshots are supported in Windows Server 2012. In all cases, snapshots are equivalent to "restore from backup". So you should honor general rules of restoring AD from backup. The most important parameter is the TSL (Tombstone Life Time). I.e. restoring a snapshot older than TSL can cause a lot of troubles. It's better and easier to rebuild the ...


0

Depending on version of RHEL (which for whatever reason you decided not to include), you have to make sure ntpd (RHE6) or chronyd.service (RHEL7) IS running and set to start after reboot, also make sure it's configured properly. for more information: RHEL6: ntp.conf(5), ntpq(8), ntpdc(8) RHEL7: chrony(1), chronyc(1), chrony.conf(5), hwclock(8), ntpd(8) ...


0

Have you verified your NTP settings are pointing to your NTP server and communicating to the server? Or if you do not have an internal NTP server, verify that they are all pointing to the same external NTP server and that they are properly communicating to that server? You mention that the servers "lose sync". What does this mean exactly? Are they straying ...


0

Check the firewall (firewalld) on the F22 server and ensure that the ports are open. I would expect this to be part of the problem as by default these ports are unlikely to be opened. However, other things you may like to check Does routing need to be enable on the host and if so has it? Does the firewall on the host have to be opened and if so has it?


1

Debian comes with this small package for detecting virtualisation type: $ sudo apt-get install virt-what $ virt-what and little bigger because of Perl dependencies: $ sudo apt-get install imvirt $ imvirt


1

Minimal risk and down-time can be somewhat subjective terms in this case and may also be limited by available resources. The 'ideal' way to update with no downtime and minimal risks to VM data would involve multiple servers, at least 3, possibly more depending on load and storage requirements: Backend storage for VMs, ideally not on a hypervisor, ...


2

I can only tell from my experience with Citrix XenServer (free edition). There an upgrade is really child's play. Download the .iso from Citrix, burn/write it on a CD/USB-Drive, boot from it and choose upgrade. It will only edit the existing partitions/files of your installation and will not touch your storage repository, where the virtual disks of your VMs ...


1

Just wanted to point out to official Microsoft KB about this: Virtual machines lose network connectivity when you use Broadcom NetXtreme 1-gigabit network adapters As I understand this VMQ thing not properly implemented in cheap NICs and as vendors tend to deliver drivers which are targeted to whole product family of NICs not for specific one (i.e. one ...



Top 50 recent answers are included