Unanswered 'virtual-machines' Questions - Page 2

2 votes

0 answers

1k views

Ubuntu KVM virsh console domain connects, but does not load console

I installed a copy of Ubuntu 17.04 using virt-install, on my server (non desktop). sudo virt-install --connect qemu:///system -n wiki -r 4096 --vcpus=2 -f /dev/mapper/vgpool-wiki --network=bridge:br0 ...

BobbleHead

21

asked Jun 12, 2017 at 14:52

2 votes

1 answer

3k views

Windowns Hyper-V Virtual Machine shutdown instead of restarting as commanded

I am running a Windows 2016 Hyper-V host with the following VM's 2x Windows 2012 R2 2x Ubuntu 16.04 Whenever I carry out a restart of the VM's after an update they nearly always shut down and ...

David

21

asked May 17, 2017 at 15:19

2 votes

0 answers

132 views

Is there a "TRIM" command for dmcrypt devices?

When using an encrypted drive in a virtual machine, the VM image starts very small if you do not initialize the drive with random data. When you fill the drive, it grows, but when you delete files it ...

allo

1,713

asked Feb 15, 2017 at 17:47

2 votes

1 answer

358 views

PDCe won't accept external time source

I noticed our PDCe is running 1:20min late and, of course, also the rest of devices in the network. I'm trying to sync with an external time source but it's not going well. It's a virtual Windows ...

HEDMON

477

asked Sep 20, 2016 at 9:55

2 votes

0 answers

490 views

unable to ssh to Azure virtual machine

Brief explanation about the issue- I am experiencing VM restart every now and then. So whatever disk we attached get automatically unmounted. So as per the recommendations what we did is added ...

Wazzzy

147

asked May 6, 2016 at 5:52

2 votes

1 answer

9k views

How to diagnose/troubleshoot tftp timeout

I have 2 VMs. One is setup as a pxe server (dhcpd with a specific subnet and a tftpserver). The second VM is networked with 'vboxnet2' to first VM and it is able to get the DHCP IP as specified my VM1'...

Victor

71

asked Apr 4, 2016 at 0:50

2 votes

1 answer

2k views

Azure : VM fails to connect after being promoted as domain controller

I have few VMs provisioned on Azure, one of them acts as a read only domain controller replicating from a in house domain controller through site-to-site VPN. The problem is every time I create a VM, ...

Sisyphus

133

asked Jan 13, 2016 at 11:06

2 votes

0 answers

135 views

How Hyper-V server 2012 shares processor usage over virtual machine?

I have a Hyper-V server 2012 installed on my physical server (bare-metal). For testing purposes I created 2 VM machines (windows 7) and began testing server processor usage while VM runs at 100% ...

Andrew Davis

95

asked Nov 11, 2015 at 15:28

2 votes

0 answers

979 views

“The location constraint is not valid” When Creating Azure VM

I've just signed up for an Azure account to test it out as a possible hosting solution, but when I try and create a VM from the VM Depot I seem to get the error "The location constraint is not valid", ...

David Morning

51

asked Oct 30, 2015 at 11:16

2 votes

1 answer

156 views

What memory settings aside from page file size are significant for debugging performance issues on Windows Server 2008

While debugging a problem with slow hg cloning from Windows clients, I found that hg clone performance could be significantly improved (10x faster) on EC2 2012 virtual instances by reducing the ...

grenade

322

asked Sep 22, 2015 at 11:15

2 votes

1 answer

513 views

Host not responding - vCenter

Few days ago I configured a new vCenter server behind the NAT for my VMware Hosts. Everything is working perfectly on the Management LAN, but the problem is when I'm trying to add a server outside my ...

Matt

21

asked Sep 14, 2015 at 22:17

2 votes

1 answer

156 views

What are the network prerequisites for Windows Azure Pack

I have followed many articles to install and config windows azure pack distributed, But every time I finish configuring everything, the azure pack is not working and give me different errors, seams to ...

Amr Elgarhy

243

asked Mar 21, 2015 at 13:07

2 votes

0 answers

705 views

Share serial port between linux containers

I have a requirement to share a single serial port between two or more linux containers. The LXCs are spawned by the host linux. I explored the option of socat, wherein the host will open a TCP ...

networknovice

21

asked Feb 4, 2015 at 20:05

2 votes

1 answer

70 views

How to spec VM requirements based on historical data of transient processes on Linux?

I've been given a task to break apart the services on one of our main VMs (Amazon EC2) and appropriate additional VMs to suit the services needs. The type of services that I am dealing with are ...

Mike

21

asked Dec 1, 2014 at 21:19

2 votes

1 answer

717 views

Is the ethx mac address of a VM the same as the mac address of the corresponding tap interface?

I have a single node openstack install on an ubuntu machine. For some reason that I cannot figure out, the linuxbridge is dropping packets from this VM. My iptables seem to be fine (atleast as far as ...

NetCubist

21

asked Feb 15, 2014 at 1:42

2 votes

1 answer

846 views

Azure Linux VM Captured, Built from image. Different password or key for new VM: permission denied?

I followed How to Capture an Image of a Virtual Machine Running Linux to capture a VM image, after installing the packages I wanted on top of Ubuntu 12.04 LTS. I turned off the machine following a ...

mpbloch

982

asked Jan 28, 2014 at 20:05

2 votes

0 answers

146 views

Where do you store shared secrets used in building VMs dynamically (phoenix servers)?

We use vagrant to spin up linux VMs for dev, testing, and evaluation servers for our software. Most often, devs are using linux from VMs inside an AD-connected windows7 box. The configuration of the ...

JCii

121

asked Jan 27, 2014 at 23:01

2 votes

0 answers

248 views

xenserver vm routing fails half the time on the same network

I recently switched from openstack (due to complexity) to xenserver at work, I ran into an issue that I can't solve, I can ping the server all the time but the vms part of the time. here is a ...

michael.boost

21

asked Dec 9, 2013 at 4:05

2 votes

0 answers

311 views

Computer management, Access denied only on win XP VMs

This may take a few lines to setup, so bear with me. My company runs vmware, mix of win xp and win 7 VMs. My tech group have admin rights throughout the domain. We're having some scanning issues ...

soMuch2Learn

333

asked Oct 18, 2013 at 14:20

2 votes

2 answers

2k views

Private networks with SCVMM 2012 SP1 and Hyper-V

In my lab I have two hyper-v host running Windows 2012 server. For lab and test purposes I want to have private networks that are available on both hosts, and where the VMs on those networks are able ...

Chrizmo

161

asked Jul 30, 2013 at 20:05

2 votes

3 answers

2k views

How to install APC on a vagrant box running Ubuntu with PHP?

In my "Vagrant" file I have this line: chef.add_recipe("php::module_apc") But it gives me this error: [2013-01-11T22:14:53+00:00] INFO: Processing package[php-apc] action install (php::module_apc ...

thasmo

257

asked Jan 11, 2013 at 23:14

2 votes

0 answers

713 views

how to access virtual machine behind NAT from public network

I have a 1&1 hosting dedicated server (linux centos 5.x with plesk) (IP 74.208.98.x) and configured a nagiosxi virtual machine to run in NAT mode under VMware player 4.0. because i unable to use ...

JohnBritto

21

asked Dec 6, 2011 at 14:55

2 votes

2 answers

211 views

Cross migration of VMs

I have two w2k8r2 machines, that are in cluster, There are also two machines that are used as shared storage (with StarWind installed). On each node of the cluster there is one VM. So tell me please ...

user57037

asked Oct 27, 2010 at 14:47

2 votes

4 answers

102 views

Options for running virtual appliance on boot in Windows

I'm working on a software package I'd like to be able to release as a virtual appliance. I'll be exporting the appliance from VirtualBox as a .ovf file. Outside of vmware server, are there any Windows ...

Chris

869

asked Mar 13, 2010 at 19:40

2 votes

1 answer

500 views

Virtual AD file server becomes unresponsive after reboot, repeatedly

Event ID: 12291 in the System event log after the virtual AD server boots, per a *script, at 6:30 a.m. Event ID 12291: SAM failed to start the TCP/IP or SPX/IPX listening thread. This occurred 4 times ...

sjbriere

asked Sep 18, 2009 at 16:37

2 votes

4 answers

969 views

Fedora 12 on Vmware network disabled on restore

I have a fedora 12 guest running on VMWare on windows 7. I use it mainly for the occasional linux dev. Whenever I restart the guest, networking works fine. But if I close the VMware player and save ...

Chaitanya

121

asked Oct 9, 2010 at 0:27

2 votes

1 answer

2k views

Migrate a QEMU/KVM VM from qemu:///system to qemu:///session

I have a created a Windows 10 VM using virt-manager as user (not root). However, when try to list the VMs with virsh list --all, My VM is not listed? And, if I specify the system URI with by running ...

Adel M.

121

asked Jul 3, 2021 at 15:45

1 vote

1 answer

77 views

VM Windows Server 2022 does not start on its own after reboot

I have a VM created in google cloud, where I use a Windows Server 2022 Datacenter, but every time I restart this machine through the remote connection through my windows 11, the VM does not start by ...

AwayShift

11

asked Feb 19 at 16:38

1 vote

1 answer

78 views

Permissions broken after mounting disk on /home in Linux VM with AAD integration

My problem is as following: I have a Azure Linux VM and external Managed Disk attached to it. I want to mount this disk to /home directory so that files of my users are persistent across operation of ...

Kagamashi

11

asked Jan 12 at 15:11

1 vote

1 answer

375 views

An Active Directory Domain Controller (AD DC) for the domain could not be contacted

I have a PC with Windows 11 Home. I use Hyper-V to install 2019 server (Server) and 2 Windows 10 Enterprise virtual machines (VMs). I add two Enterprise VMs on Server as follows. I select MARVEL.local ...

jerseypizza

21

asked Dec 6, 2023 at 19:15

1 vote

0 answers

166 views

UFW is not filtering traffic routed through bridge

I am experiencing a case where UFW is not blocking packets coming from a VPN host, going through the VPN interface, then through a bridge and finally to a VM. I could configure another firewall on the ...

Alex

11

asked Oct 31, 2023 at 16:35

1 vote

0 answers

357 views

Hyper-V GPU Passthrough with NVidia A100 no display

I am currently trying to get some NVidia A100 GPUs to work on our Hyper-V Hypervisor. I managed to setup the GPU Passthrough to a VM but the problem is I don't get a video display. I assume the ...

C0dR

81

asked Aug 23, 2023 at 7:14

1 vote

0 answers

36 views

Migrating 9 virtual machines to 1 server or pc

I have a build system set up which has 5 pcs and that has a total of 9 virtual machines using Hyper-V. I want to update this infrastructure and cut out the need for 5 physical pcs. Is there a way to ...

user1031259

asked Jun 27, 2023 at 18:54

1 vote

0 answers

392 views

Virtual machines not working with 802.1X - Linux Bridge

I am experimenting 802.1X in my home lab. I have most stuff working but one problem I have is with virtual machines not being able to authentication onto the network using 802.1X. There is very little ...

Tipex

61

asked Jun 1, 2023 at 12:33

1 vote

1 answer

169 views

multipass moving data directory fail

I am following: https://github.com/canonical/multipass/pull/1789 and https://lucasroesler.com/posts/2020/multipass-data-partition/ to move MULTIPASS_STORAGE to another location, but I am not lucky. I ...

Raul Cejas

111

asked Mar 31, 2023 at 0:52

1 vote

0 answers

167 views

Error installing Debian on Virtual_machine(Disk parallel)

Debian 12 keeps giving me a new error each time, the last one I got after finishing the installation is: ERROR TRYING TO BOOT FROM SATA DRIVE 1 I tried the open Disk parallel and followed a suggestion ...

MAHDI NOUIRA

11

asked Jan 29, 2023 at 10:49

1 vote

1 answer

69 views

Can't configure unique IPs in Parallels VMs

I have 4 VMs running Ubuntu within Parallels (host machine is OS X). I am trying to set up SSH so that I can SSH into them, but I can't connect to them individually. They are all reporting the same IP ...

T-House

11

asked Nov 18, 2022 at 0:11

1 vote

0 answers

390 views

How do I test my Proxmox VM Guest's Watchdog? (Windows 10 VM)

My Proxmox (Qemu) uses the i6300esb watchdog device driver. Windows shows the Watchdog Timer device under Device Manager. How do I test this? I tried disabling the watchdog device but nothing happened ...

Jacob Bruinsma

173

asked Oct 26, 2022 at 21:12

1 vote

0 answers

608 views

Need help regarding NFS shares permissions

I recently switched to using Proxmox as my OS of choice from OMV as the main OS and running a bunch of docker containers on the same host. I installed OMV (OpenMediaVault) inside a VM. I passed ...

apoorv569

11

asked Oct 1, 2022 at 16:38

1 vote

1 answer

1k views

Is there a simple way in Azure to redirect all HTTP(S) requests to a "server down" status page?

I have a web server (Windows/IIS) hosting various web applications running as a VM on Azure. Now, I'll need to do some maintenance on the web server, which will involve shutting down and reconfiguring ...

Heinzi

2,249

asked Sep 11, 2022 at 8:28

1 vote

0 answers

444 views

Host unreachable from a specific host

I'm encountering a weird issue where connections from one VM (A) to another VM (B) systematically time out, in both ways. Symptoms: ping A from B hangs (as well as anything else I have tried such as ...

Agate

111

asked Aug 31, 2022 at 4:08

1 vote

0 answers

60 views

Restoring a Windows VM automatically in AWS

We have a Windows 2012 R2 VM called test01 in AWS and it's used for automatic tests. There is another server which connects to the test VM for running some tests. Sometimes the tests mess up the VM. I'...

Eastman

60

asked Aug 26, 2022 at 9:44

1 vote

0 answers

586 views

KVM start failed (ubuntu image)

KVM start failing after I have made the below changes. Environment:- qemu-img version 2.1.3 ubuntu VM 1. Stop the VM 2. qemu-img resize vm1.img +50G 3. start the VM virsh start vm1 error: failed to ...

Ekam

11

asked Jul 6, 2022 at 13:58

1 vote

0 answers

463 views

Set up a single ip for egress / ingress traffic on a docker swarm

I have a docker swarm with 3 vms: node1: 192.168.10.1 node2: 192.168.10.2 node3: 192.168.10.3 Is it possible to have an ip 192.168.10.4 for both ingress and egress traffic. I know one way of doing ...

Def Soudani

111

asked May 3, 2022 at 13:44

1 vote

1 answer

721 views

Remote Desktop Connection to Azure VM terminates after connecting to Client VPN

I installed FortiClient VPN on my Azure VM. As soon as I connect the VPN, my Remote Desktop connection gets terminates and I can no longer reach it unless I restart the VM. I am thinking it overwrote ...

Javy26

111

asked Mar 3, 2022 at 3:27

1 vote

0 answers

1k views

One IP in subnet not reachable from outside, but others work fine

We had virtual host crash the other day, which caused a few VMs to reset and come back online. One of them, after coming back up, is not reachable on the network from outside the subnet it lives on. ...

thatleviathan

11

asked Jan 31, 2022 at 18:09

1 vote

0 answers

610 views

Running Vagrant VM on Ubuntu 20.04 VM on VirtualBox on Windows 11 Host Machine, Need SSH access to vagrant from windows 11

I am doing a computer vision project, and I have Vagrant VM on Ubuntu 20.04 VM on VirtualBox on Windows 11 Host Machine. I'd like to use the Windows 11 host machine for the CV since it needs a lot of ...

user943347

11

asked Dec 5, 2021 at 5:45

1 vote

0 answers

2k views

Alma Linux - Not able to ping out

So I have my first VM in Proxmox and I know the network works as I have used CT in the past without any issues, however I have set up a VM and now I am having network issues. Seems while it says the ...

Russell Harrower

111

asked Nov 13, 2021 at 3:07

1 vote

0 answers

2k views

DockerDesktopVM can't start due to Hyper-V

For some reason I keep getting the error that "DockerDesktopVM" can't be started because a Hyper-V component isn't running, but how do I change that? I found people adding commands like ...

Mads Sander Høgstrup

111

asked Nov 5, 2021 at 14:27

1 vote

0 answers

254 views

UDP port forwarding between virtual machines and docker composed network

currently I'm deploying a virtualized system and having a problem with forwarding of an udp port. I tried many tutorials, but something must be wrong and I don't know why the connection is refused all ...

WPFGermany

111

asked Oct 4, 2021 at 20:13

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