Virtualization is a group of software technologies that allow abstraction between layers of a system. This allows separation between the logical layers of the system, providing isolation, flexibility, and/or the ability to run more than one at a time. This differs from most traditional systems where ...

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Make local server available to other computers in the local network [on hold]

I'm running VirtualBox on Windows 7, the VM OS is Ubuntu Server and it's set up in such a way that I can access it from the host machine on 192.168.56.101. The host machine IP in the local network is ...
2
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1answer
36 views

How to measure boot time of a VM from host machine?

On both Guest machine and host machine, I am using Ubuntu 12.04. As a hypervisor I am using KVM. I want to perform some experiments related to boot-storm and I have created all other scripts to ...
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0answers
16 views

No connectivity between azure VMs

In my azure environment, I have 4 VMsx running Windows Server 2012 R2 10.0.0.4 (AD, DNS) 10.0.0.5 (ADFS) 10.0.0.6 (MSSQLSERVER) 10.0.0.7 (IIS) All of the machines are connected by an azure virtual ...
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2answers
29 views

Multiple IP addresses on host and one on kvm

I've recently configured my network using advice from this question but now I need to configure this a little different. I'm using Debian distribution. I have one dedicated server with 3 IP addresses ...
3
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1answer
113 views

Can vSphere PowerCLI cmdlets execute from a PS1 file?

I'm looking to write an admin script that will: Delete a VM from vSphere Delete the VM's DNS entry Release the VM's IP address with our Windows DHCP server I can accomplish the first item via ...
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0answers
12 views

ISCSI drives suddenly lost partitions

We have a VM host, and each VM is given an ISCSI volume to boot off of. These ISCSI volumes are stored on a second server. Today, we had to reboot the VM host because ISCSI hosts kept going into ...
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0answers
29 views

How are the 16 cores of an Azure A9 VM instance implemented? [closed]

I want to know if the A9 VM instances map to 16 physical cores. According to their (Microsoft Azure) specification, both the A8 and the A9 use the Intel® Xeon® E5-2670 processor with the ...
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1answer
19 views

Virtual PC/Server software intalled on SBS 2011 Essentials that hosts other Windows OS?

I'd like to know if anyone else has successfully installed Oracle Virtual Box, VMware Workstation, or Virtual PC 2007 software on SBS 2011 Essentials that hosts other Windows OS without causing any ...
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1answer
22 views

Two IP addresses one network interface and virtualization

I have a Debian [H] host server with one network interface, configured like this (/etc/network/interfaces): auto lo iface lo inet loopback auto eth0 iface eth0 inet static address xxx.yyy.zzz.77 ...
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3answers
1k views

How much contention is too much in VMware?

For a while now I've been trying to figure out why quite a few of our business-critical systems are getting reports of "slowness" ranging from mild to extreme. I've recently turned my eye to the ...
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1answer
30 views

Manage oVirt environment

I'm starting to deploy oVirt in one of my works, and I have a lot of questions about how to manage everything when you start using it. First I'll describe my setup. I have three machines, two ...
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1answer
39 views

HyperV External Switch Multiple VMs

I'm quite new to hyperv and I am having problems setting up network access for my VMs. The host has two physical network ports and I've assigned one to an external virtual switch. I've then setup two ...
5
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1answer
820 views

Linux high RAM usage for unknown reason

after searching around for this and only finding posts of people who do not interpret the "cached" figure correctly, I decided to ask this question. I have some servers at hand, which act strangely. ...
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0answers
31 views

How to configure VXLAN over linux bridge?

I am using Ubuntu 14.04 which support VXLAN configuration. Currently I can add a VXLAN interface such that: vagrant@ubuntu:~$ sudo ip link add vxlan1 type vxlan id 1 group 239.1.1.2 vagrant@ubuntu:~$ ...
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1answer
41 views

Transfer physical Windows Server 2008R2 licence to Hyper-V server [duplicate]

I have a plan to upgrade my 2008R2 Standard Edition to 2012R2 Standard Edition, and then virtualize them with Hyper-V 2012R2. Is it possible to upgrade from Windows Server 2008R2 Standard Edition to ...
2
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3answers
86 views

KVM guest is unable to access the internet

I have a Debian host that has several allocated IPs and KVM with a Debian guest using a bridged network. The guest is completely unable to reach the network, including the LAN or even the host. ...
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0answers
26 views

How do I configure KVM guest to have Internet access?

I am trying to get KVM working on my Debian server and I am having a slight problem with networking with my guest OS (also Debian). The virtual machine is using the "default" network (without a ...
0
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0answers
15 views

More than 3 virtual disks in XenServer

I have an Ubuntu Server 14.04LTS on a XenServer 6.2 in HVM mode. Is there any way to use more than 3 virtual disks without a full PV? I already installed XenTools but nothing changes. As far as I ...
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1answer
32 views

Physical processor to virtual processor scaling

If I have a Windows Server 2012R2 with Hyper-V role installed, and the configuration is: 4 processors, Intel Xeon E5-4620v2 and each one is 8 cores/16 threads, can I utilize enough power for ...
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1answer
41 views

routing a second public IP to multiple VM's

myself and a friend have rented a dedicated server and have used KVM and libvirt to create virtual machines for us to use. (we are using debian jessie on the host) we purchased two additional IP ...
0
votes
2answers
42 views

Static IP injection to guest VM in Win2k8

Is there a way to inject IP address and do network configuration of a CentOS VM running on Windows server 2008? In Win2k12 there is SetGuestNetworkAdapterConfiguration using which IP address can be ...
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2answers
38 views

Recover Xenserver VM's in Linux Rescue mode WITHOUT Xenserver host

My physical server got hacked so my provider has shut down the server and booted it in Linux rescue mode. I've got full access to the file systems in Linux, however after hours of trying and searching ...
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0answers
12 views

Native software on dedicated machine vs virtualizing services on dedicated machine

I used to have a VPS, and the benefits of a VPS are pretty obvious: instant snapshots, instant booting, instant and one click changes rollback (so if I mess up really bad, even losing network ...
1
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1answer
95 views

Set up network interfaces in Ubuntu for KVM virtual machine

I am currently renting an Ubuntu server. On this machine I would like to run virtual machines using KVM. For some web access I have installed Kimchi, a very simple html5-based KVM management tool. ...
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0answers
43 views

hyper-v error manage VM

I have a problem in the management of the machines in Hyper-V, when I try to open the console I get the following error: an error occurred while attempting to launch the Virtual Machine ...
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0answers
11 views

Xen relay device on DomU

I am using Xen hypervisor. I've two reuirements forward a devfs file to DomU Guest. forward a tty to DomU Guest. forward a pts to DomU Guest. If 1st one works second one will also work. Example: ...
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0answers
36 views

OpenVZ : live migration fails

I can't launch live migration of OpenVZ container between two proxmox nodes... Feb 05 03:30:27 starting migration of CT 102 to node 'madrid' (xx.xx.xx.xx) Feb 05 03:30:27 container is running - using ...
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1answer
62 views

Running Vagrant/libvirt: trying to establish public/private networks

I'm running Vagrant 1.7 (from their official 1.7 packages) on Ubuntu 14.04 LTS and I'm trying to provision several private VMs and one public one. My Ansible provisioning scripts change all the ...
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0answers
32 views

Azure public endpoint SSL termination

In Azure, is there any way to set up an HTTPS endpoint directly on the public VIP, as opposed to joining each VM to a load balanced set, so that I can associate this endpoint with the SSL certificate ...
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votes
0answers
43 views

ProxMox Internal DHCP

I'm currently searching for a solution to automate a "cloud" network routing. My hosting company offers me additional IP's for my VPS systems on my Proxmox host and I want to allocate them ...
5
votes
1answer
95 views

virtual_alias_domains - how to use different IP addresses when forwarding mail?

I host 2 web domains (domain1.com and domain2.com) on a CentOS 6.6 Linux server with 4 IP addresses. Postfix 2.6.6 accepts mails to info@domain1.com and info@domain2.com and forwards them to ...
2
votes
1answer
40 views

Virtual machines on a SAN and a failover cluster between two physical servers

Say I am setting up the following environment: -two physical servers each with Windows Server 2012 R2 Datacenter. -a SAN -a failover cluster between the two servers The physical servers won't be ...
0
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1answer
20 views

How do I have a local computer load a virtual machine guest OS residing on the server?

I'm not sure how to ask this. I have a Dell 7010, and I wanted it to run a virtual machine. VMWare, Xen, or other software. But what do I install on the client PC so they can load the virtual ...
0
votes
1answer
96 views

Can I run virtualbox 64bit OS in a Azure Virtual Machine?

I installed VirtualBox 4.3.2 in my Azure Virtual Machine, but I can't open a 64 bit VM (Windows Server 2012 R2 64bit). Virtualbox send a message about not having vt-x support Can I configure my ...
0
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0answers
79 views

SSH using Agent Forwarding with Windows Host OS, Vagrant Ubuntu Guest OS, and Keepass/Keeagent

Intent: To be able to deploy to lan-example.com from any dev environment; whether it be directly from the virtual OS, or any single-OS system, or even over the internet using ONE SSH key stored in ...
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0answers
51 views

Configuring Proxmox Cluster Storage

We are configuring proxmox on our servers at two locations each location has; 1 x hp c7000 enclosures with 16 blades 1 x hp proliant dl585 We also plan to add a 24TB SAN to each location. We are ...
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votes
1answer
75 views

Pfsense edge firewall .. DMZ … pfsense internal firewall + squid

i want to setup Pfsense on edge .. DMZ .. Internal PFSENSE with squid + squid Guard + lighttp for reporting... Internal Network. edge firewall will have 2 wans on loadbalancing & failover. ...
3
votes
1answer
92 views

GPU support on OpenStack/CloudStack

I'm wondering if anyone here has had success with any of the cloud orchestration layers using a GPU (preferably vGPU)? I've been able to get XenServer 6.2 to successfully see our nvidia GRID K1 card ...
0
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1answer
39 views

My server boots a kernel I don't recognize

On my dedicated server I'm running Debian 7.5 as an OS. I have installed OpenVZ for amd64 architecture to use the benefits of virtualization but after successfully installing it (following these ...
0
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0answers
32 views

Is it possible to virtualize a Genband/Broadsoft M6 voip telephony system?

I work with a company that runs a hosted VOIP platform originally known as the Genband M6 acquired by Broadsoft a few years back. This system is going end of life March 2016 and will no longer be ...
0
votes
1answer
44 views

Managing disk space with > 500 virtual windows servers (strategy ?)

I'm working as an admin in a medium sized company. Over the last 10 years our amount of servers increased from less than 90 physics to more than 500 virtual machines including a few physics as host ...
1
vote
1answer
120 views

Promiscuous mode in KVM

I have cloud system based on Openstack Icehouse-version. Now I want to test newer version of Openstack (Juno) inside my existing cloud. All hosts and guests use Ubuntu 14.04 as their OS. KVM is ...
0
votes
0answers
306 views

XenServer 6.5 upgrade: NVIDIA GRID K1 gives “PAT Configuration unsupported”

We have two Supermicro SYS2027GR-TR2 servers that were running XenServer 6.2 SP1. Each system has one NVIDIA GRID K1 video card installed. We just upgraded the servers to XenServer 6.5 by doing a ...
0
votes
1answer
48 views

Anyway to create a single bootable image from Windows Server Backup vhd files

So I have a Window Server 2008 machine that I need to restore. The machine is on, but will not boot into the OS. I really don't need the machine anymore. I have Windows Server Backup vhd files. Is ...
0
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1answer
119 views

Major Issues with Sysprep, server now has a installation prompt

So yesterday I asked this question: How to create a single image of Windows Server 2008 R2 to use on a Azure Virtual machine I was told by multiple sources I need to run sysprep against the machine, ...
0
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0answers
25 views

server 2008, SMB issues after changing to virtual network

I have a windows 2008 server that I use as AD, DNS, and mostly for file sharing. I wanted to use hyper-V to add a virtual Linux box for some network monitoring software. So I added the external ...
0
votes
0answers
20 views

Opposite answers, which is true: Can a vCPU be mapped to more than one physical CPU? [duplicate]

I have a 32 bit optimization software (CPU intensive) which can use only one cpu core. If a virtual operation system in VMware is set to be one vCPU, can this system use more than one physical cpu of ...
0
votes
1answer
43 views

Server virtual processors and processing units

I am using PowerVM hypervisor with AIX operating system, and having troubles understanding the difference between virtual processors vs processing units. Here is an example: I have got a server with ...
0
votes
1answer
48 views

How to create a single image of Windows Server 2008 R2 to use on a Azure Virtual machine

I am trying to migrate from a colocation where I own the servers to Azure. I have been following this article: ...
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votes
2answers
29 views

When to use virtual or regular users exim/dovecot?

I'm setting up an exim/dovecot server but i'm looking into when to use virtual users and when to use regulars. Is there a proper use case? I guess i just have to use real users because most of them ...