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Questions tagged [virtual-machines]

A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system. It is a software implementation of a machine (i.e. a computer) that executes programs like a physical machine.

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IBM Power P5 9113-550 series [on hold]

I am not a system admin by profession, but just a student who has the opportunity to work with IBM P5 series and possibly to learn something new. I was looking for an advice on which OS and ...
2
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1answer
43 views

Azure domain joined VM DNS settings issue

I have got an on-premise AD-DC which I am trying to extend to Azure. This server hosts the DNS services as well. I created a VNet on Azure and set its DNS server property to point to my on-premise ...
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28 views

How to move a physical Ubuntu install -> image -> install proxmox VM on same machine and spin up that Ubuntu image on Proxmox?

So I have a physical server with Ubuntu 18 Server runnning on it. I want to use this hardware to run Proxmox now though. This server, however, is relatively important and too much work manually ...
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1answer
11 views

Outbound routing on Azure VM

I have a test VM in Azure, private IP 10.0.0.4 running an IIS site. I have a Watchguard firewall VM in Azure with two interfaces, one has a public IP and a private IP of 10.0.1.2. The other ...
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2answers
50 views

How many VMs can I install on Windows Server 2016 standard?

With 1 Windows Server 2016 Standard (WS2016s) license (running Hyper-V) installed as host on a physical machine, how many VMs can I install on that machine? Is there a limit? Could I install 10 ...
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1answer
20 views

xfs_db reports high file fragmentation where VM is located, but VM shows almost no fragmentation

I have several libvirt VMs stored on xfs partitions and am using gluster to replicate the storage. The VMs use qcow2 for storage. Some of the partitions where the VMs are located indicate high file ...
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1answer
32 views

Need to upgrade Azure VM Standard HDD to SSD?

I've got an email from Azure : "Adjust your disk throughput or upgrade to premium disk storage. You’re receiving this email because you’re running infrastructure as a service virtual machine (VM) ...
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0answers
23 views

Problemas para conectarme via RDP al servidor [closed]

Tengo activado un servicio de VM con Windows server, desde hace unas semanas hemos estado teniendo problemas para conectarnos via RDP, tenemos que intentar la conexión varias ocasiones hasta que ...
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0answers
45 views

Access to http is blocked by pfsense/firewall

I am using VMware ESXi and have configured a pfSense router in a VM.. Other VMs are getting IPs from this router VM. Now on any VM (e.g. Windows 10) If I try to open http://google.com it returns ...
0
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1answer
21 views

Unable to reach Azure virtual machine on port 9000 for Sonarqube installation

I'm trying to install sonarqube@7.3 with postgresql on a Debian 9 Stretch virtual machine hosted with Microsoft Azure. Everything works properly except that I can't browse with my real physical ...
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0answers
29 views

Issue with resizing disk on VMware VSphere

I have expanded a virtual disk for a Centos 7 virtual machine to 100 GB size. Then I used Gparted to add the unallocated 30GB to the /dev/sda1 partition. But when I execute df -h the new size of ...
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1answer
14 views

Can I replicate an Azure VM while the said VM is still running? or Will the VM stop while replicating?

I have and Azure VM which is quite critical as it is running services. I wanted to replicate that VM. My question is, Can I replicate an Azure VM while the said VM is still running? or Will the VM ...
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1answer
25 views

How to troubleshoot a timed out error on putty when connecting with ssh on a azure virtual machine

I just came out with a nice Debian 9 "Stretch" Virtual Machine hosted with Microsoft Azure. I've already used PuTTY, PuTTYgen and Pageant to connect with ssh to it and i've saved all this ...
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0answers
27 views

How to run a script/command at only the “first” boot once on Windows Server 2016?

I've been looking around everywhere but couldn't find anything relevant. I have a pre-configured Windows image that I would like to deploy on a huge number of VMs and I want a specific script to run ...
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0answers
12 views

dircolors: no SHELL environment variable, and no shell type option given

On interactive login I get: dircolors: no SHELL environment variable, and no shell type option given But I do have SHELL variable set: % set | grep SHELL SHELL=/bin/bash SHELLOPTS=braceexpand:emacs:...
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1answer
39 views

How I increase GPU video RAM in virt-manager?

I have this text in my XML <video> <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' ...
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0answers
14 views

How to configure internet gateway for NAT'd VM on KVM?

I'm running the Redhat 7 hypervisor, running KVM. The RHEL hypervisor has internet access. The VM is configured with NAT, not as Bridged, and does not have internet access. How would I configure the ...
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0answers
39 views

How to create a scheduled task to run on system startup(without user logging in) in Windows server 2016 azure vm

I have a windows server 2016 server in Azure which is mainly used for running a few scripts. I want to create a schedule where a script should run at the system startup(around 3-5 mins delay is also ...
0
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0answers
47 views

How to connect to VM

how are I trying to create a proxy server with the CCProxy program and an instance of Windows server 2012 in Compute engine already configures the program but the problem I have is that the VM is ...
1
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1answer
31 views

Port forwarding with firewall-cmd

I have several VMs running on top of a server (Virtual Machine Manager, VMM). I'd like to forward port 80 on the server to port 80 of one of my VMs. The host runs CentOS7, so firewalld is in charge. ...
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1answer
44 views

What is hypervisor? examples for type1 and type2 [closed]

What is hypervisor, and what are the differences between type1 and type2? Examples for type1 and type2 ? Most questions out there are about the difference between type1 and type2, and the definitions ...
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0answers
13 views

Xen virtual guest having dropped packets

I have noticed dropped packets on my Xen virtual guest. Checking with main server no dropped packets observed. What could be causing this? Im using 4.9.112-32.el7.x86_64 Added new info :
0
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1answer
21 views

Transfer Azure resource group to different account

So I'm switching employers. On my visual studio subscription I have 130€ a month to burn, so I have an Azure VM running for free to try stuff. By now I have a few things there I'd like to take with ...
0
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0answers
25 views

How to change the checkpoint file location on a virtual machine?

I have recently created a virtual machine, and then run a checkpoint. Then I realised that the checkpoint is saved on the C: drive. The thing is, I wanted everything related to this virtual machine ...
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0answers
40 views

On VirtualBox, is there a way to set 'Reinitialize MAC address' as default?

When cloning a VirtualBox instance, is there a way to set the "Reinitialize the MAC address of all network cards" as the default? Humans sometimes forget to tick this box, with the resulting horror ...
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0answers
42 views

Hyper-V Windows 2012 R2 - How to stopp VM with status stopping-critical

Unfortunately sometimes when we shutdown a virtual machine (problem persist with only one machine), this machine dont complete the shutdown and keep stucked with the state: stopping-critical and ...
0
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1answer
62 views

Azure port forwarding not working properly

I'm new to Azure Cloud, and all screenshots regarding my question are taken with the Old Azure Portal UI. My Issue: I forwarded multiple ports 7707 UDP/IP (Game Port) 7708 UDP/IP (Query ...
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1answer
51 views

With static IP on Hyper-V ping to VM fails

I have configured a VM on Hyper-v. With the VM network adapter configured to receive DHCP the ping works fine but when I set it to static IP address ping from host to VM always returns time out .I am ...
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0answers
3 views

are there any way to remount group folder from virtualbox?

I would like to know if there are any way to remount my group folder from VirtualBox VMs folder with its configuration as before? I had to format my / partition , and I Have my vms on my home folder , ...
0
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1answer
63 views

esxi - vm watchdog function / auto-restart failed vm

I am using ESXi 6.5 (free licence). Occasionally, one of my virtual servers (ubuntu 18.04) running on the esxi host freezes. Symptoms: the server is no longer accessible via http(s) or ssh and doesn't ...
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0answers
12 views

How can I access a VM from external network

I have a windows physical server, and I will install a CentOS 7 VM on it. I a have a VPN account that allows me to get a dedicated IP only on my host machine. What I want to do is to make my VM ...
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0answers
60 views

Installing Ubuntu 18.04 VM with Raid1 on ISCSI Server

I'm trying to create a VM (Both Guest and Host are Ubuntu Server 18.04) that uses 2 ISCSI Targets as a RAID 1 for the operating system. The goal is to have 2 Different ISCSI Servers that each hold 1 ...
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2answers
74 views

Is it safe to run do-release-upgrade on a cloud VM?

I have a few Ubuntu VMs on Azure running Server 17.10 and I'm wondering if it's safe to upgrade them to 18.04.1 LTS using do-release-upgrade. If so, what precautions should I take?
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1answer
28 views

Verifying eth0 still works after adding eth1

I am using the Virtual Machine vmware with ubuntu. I've added a network adapter - eth1 and have assigned an ip address and mac address. but now that I try to connect to the internet, it doesn't work. ...
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2answers
32 views

Shared OS VM vs. environment sandboxing?

If I need N virtual machines running the same OS, this simply means I need to install these N machines and then also have to take care of their updates etc etc... Is it possible to have only one ...
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0answers
15 views

Is there a way to make VM snapshots in PROXMOX LVM storage

Acording to official docs https://pve.proxmox.com/wiki/Storage:_LVM the LVM storage option does not support VM snapshots. You need to setup Thin LVM for snapshots to work. My question is if there's a ...
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0answers
50 views

CentOS 7.4: Cannot SSH *out* of server

I cannot SSH out of my CentOS 7.4 VM to any other machine to copy/sync data using scp/rsync. I can SSH in just fine. The SSH attempt times out after a minute or so: OpenSSH_7.4p1, OpenSSL 1.0.2k-fips ...
0
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0answers
37 views

Single RDP session and automatic disconnect of pending session group policy not working in Windows Server 2012

Good morning, I'm working on a client's environment. The servers are all Windows Server 2012. There's a pool of virtual desktops which is used by users to connect to their virtual machines and ...
0
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1answer
28 views

VMware Windows 10 VM goes black

I have a Windows 10 VM where i wanted to reinstall VMware Tools. I removed it, restarted and then reinstalled it. After that the screen went black. I have tried things like: Restarting the VM ...
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2answers
33 views

Best way to secure a SQL VM when clients do not have static IPs

I have a VM running SQL in the cloud. Typically I would set up inbound rules on the SQL ports in Azure and on the VM's firewall, but my clients do not have static IP addresses to use in the rules. ...
0
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2answers
43 views

Is there any performance benefit to Bond Virtual Adapters?

I am using XenServer and wondering if there are any performance benefits to bonding two "virtual" network adapters on a virtual machine? I am certain it would benefit a bare metal server (make one ...
0
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1answer
48 views

It is possible to give access to VM in hyper-v windows server 2012 outside the server?

I have server with windows server 2012 and hyper-v. I have created VM on it, can i access this VM console from any browser? java access or something like proxmox in Linux. I just want my client ...
0
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1answer
33 views

Disable or change IPTables firewall file based

We have a server that became inaccessibel after our network supplier changed out external IP adres. The server runs ubuntu 16.04 LTS, and access to port 22 is limited to our old IP. Only ports 8080, ...
2
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1answer
38 views

Do Hyper-V VM snapshots grow continuously as writes are made to the HDD?

(Note that while this question is about Hyper-v specifically, I'm actually interested in a generalized VM snapshot answer, unless the specific answer for Hyper-v does not apply to such a general ...
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0answers
42 views

Vagrant ubuntu box configure keyboard layout

I am deploying a vagrant ubuntu 18.04 box, using the default bionic64 box. Installing the gui with these deb packages, via apt install: gnome language-pack-de language-pack-gnome-de even setting ...
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0answers
19 views

Check Azure VM data disk details through PowerShell

I am trying to get the details for Data Disk attached to the particular VM. The Main purpose is to get notified when the disk space is highly utilized. I can get the names of Data disks attached to ...
0
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1answer
36 views

Network access from VM to host

I am running a simple KVM-based VM on a Ubuntu host. VM is connected to a NAT virtual network. It can be accessed from the host, but cannot connect back to the host. From the VM, I can ping the host ...
0
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0answers
27 views

Is there a way that i can add previously built Virtual Machines using Hyper-v to my cloudify manager?

I found we could easily add openstack, azure, aws instances to cloudify. But is it possible to add Hyper-V virtual machines which are already in use to cloudify manager? Info- I have a dedicated ...
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0answers
39 views

Azure VM Diagnostic settings-Performance Counter update failed

I am unable to update the VM Diagnostics settings-Performance Counters-Custom(By Uncheck Once Metric). Getting error "Update Failed".Why? Could you please someone help me with this.
2
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0answers
21 views

Azure classic migration errors

We're trying to migrate a couple of classic VMs in classic vnet over to ARM ('non-classic'). I've been following the Microsoft powershell migration steps here but the migration (and validation) fails ...