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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86 views

Proxmox VMs with single IP

so I don't know much about the bridges and all, but I looked around and tried to get it still working. I've got one IP for the server itself and I thought to use second IP on the VMs. I thought I did ...
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1answer
52 views

Please explain the statement, “Containers are lightweight…you can run thousands on a server…” [closed]

In much of the hype around containers I often hear statements such as: Linux containers are very lightweight...you can potentially run thousands of them on a single server... I understand that ...
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2answers
48 views

multiple network adapters in virtual machines

I need to set up server infrastructure for a client with 20 virtual machines. There will be two SQL Clusters and other machines will be web servers and active directory. I have been suggested to use ...
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2answers
63 views

Can't Log into Brand New Azure Virtual Machine created w/ Resource Manager [closed]

I just created a VM in Azure using the Resource Manager model. After it is setup, I downloaded an RDP client with this button: But no matter what I try, I can't log in. The machine is running. The ...
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2answers
4k views

Exchange Information Store keeps restarting event ID 7024

My problem is as mentioned above that the exchange information store keeps restarting. I am running Exchange 2010 SP2 on 2008 R2 as a VM The event log shows the following entry realted to this: ...
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2answers
159 views

equivalent to “Cloud Services” in new Azure portal?

I am really confused about how you can create the equivalent to "Cloud Services" in the new Azure Portal? In my understanding, Cloud Services is only a "Classic" feature now. In the new Azure Portal, ...
1
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1answer
3k views

Can not display Proxmox console due to Connection time out

When I try to open console in proxmox ve nothing happens and I see this error in logs: no connection : Connection timed out TASK ERROR: command '/bin/nc -l -p 5900 -w 10 -c '/usr/sbin/qm vncproxy 100 ...
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2answers
47 views

Point DNS label to specify port

In Azure panel i can give a DNS label for my VM, but it doesn't point to 8080 as default. To access website by dns i have to type http://xxx.westeurope.cloudapp.azure.com:8080 I have specific 8080 ...
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1answer
62 views

Bridged networking on VM host and hairpin NAT

I have one host running Proxmox VE. I set up 3 virtual bridges vmbr[0-2] to handle my networking needs: vmbr0 runs directly on the main interface for VMs with public IPs, vmbr1 allows for NATed VMs, ...
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votes
1answer
63 views

Virtaul machines on Intel Xeon e5420 cpu [duplicate]

I google around to find out how many cores in intel xeon e5420 cpu, but not got the actual answer. I have intel xeon e5420 cpu, I would like to run multiple virtual machines with 2 cores on each, how ...
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2answers
32 views

Run multiple virtual machines on a virtual server [duplicate]

Is it possible to run multiple virtual machines on a virtual server? I am on a project and I want to run an Intrusion Detection System as distributed using many ubuntu virtual machines. Is it possible ...
3
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1answer
131 views

Can I run two domain controllers within VMware vCenter on one physical server?

Before I go to the main question, I'll explain the current situation: My current employer uses VMware vCenter to run a fully operational, virtual environment (mostly domain controllers and RDP ...
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0answers
29 views

Prevent VMware virtual machine cloning or copying by users

Is it possible to prevent users who are admins on a host machine from cloning the virtual machine? Users should be able to launch and use the VM from the host machine with no restriction. But if ...
0
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1answer
175 views

How to configure VM IPs on VMWare ESX Host

I have rented a server from So You Start that runs VMware ESX 6.0 on it. I have bought IPs to use them in my VMs bu t the problem is i cannot make them run VMs. I did exactly what this guide says for ...
1
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1answer
98 views

Azure VM, All passwords changed on login

We've got an Azure VM running Server 2012 R2. I have to stress that this is NOT a classic machine. I installed server essentials yesterday and linked all the accounts to an O365 account. A by product ...
2
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1answer
103 views

Should I regard openstack cloud servers as just another type of virtualization?

If I were to set up physical servers for running a business critical website, I would absolutely build redundancy into that environment. I would strive for no single point of failure and as a minimum ...
1
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1answer
72 views

Multiple DSLs connected to single HP server

Is it possible to plug 10 cat5 (network) cables that come from 10 different DSL modems to an HP server so I have 10 different broadband lines connected to one single server? I want to use one of ...
12
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2answers
20k views

Is it possible to make Nginx listen to different ports?

I created one Nginx with one Linux Azure VM, is it possible to make nginx listen to different ports so that when I change the port number, the content would be different. I found there would be a ...
0
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1answer
22 views

VMWare Ubuntu 14.04 not reading ram

I have a vm running Ubuntu 14.04 LTS. Everything was working fine. I allocated some more ram to it but VSphere is now saying it doesnt have any of that ram now. Vmware says the ram is unaccessed per ...
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1answer
5k views

vmware | virtual machine vmdk hdd error

After power troubleshooting I get this message: Reason: 5 (Input/output error). Cannot open the disk '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/tory/tory-000002.vmdk' or one of the snapshot ...
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0answers
8 views

Automation of VMM Deployment DomainJoin Error

I am in the process of making my own C# .Net Application to Automate the Deployment of a VM. I am doing pretty much the same as the Virtual Machine Manager does when you click on "Create Virtual ...
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2answers
805 views

SSH connection lost after random time interval, both sides claim the other closed the connection

I'm connecting to a virtual solaris machine from the windows host system running virtual box. This works for a while but after some time the connection vanishes. The stange thing is that sshd claims ...
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0answers
53 views

Cisco vWLC sha2 certificates not supported bug?

I currently have an app running with a Cisco virtual Wireless Lan Controller, all works fine except we get some error messages regarding SHA1 certificates, when I'm looking for SHA2 support the cisco ...
0
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1answer
15 views

create SMB share on a clustered vm or dedicated server

I have a cluster that consists of 2 IBM servers, 8Gbps Fibre channel based SAN and 1 storage server (IBM Storwize v7000), i run virtualization on that cluster (Win2012 Hyper-V) but also want to use it'...
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0answers
148 views

tnsping and lsnrctl hung when about to exit – Oracle 12.1.0.2.0 on virtual Windows 7 VM on Mac [closed]

I am trying to run an Oracle installation on Windows 7 running in a virtual machine (Parallels or VMware) on a MacBook Pro (Retina, 15-inch, Mid 2015). When executing Oracle utilities like tnsping ...
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0answers
62 views

Jetbrains team products + out of memory

I am trying to build an Ubuntu server 15.10 VM with all the software tooling required for software development. When I saw that Jetbrains offers various tools like: hub, youtrack, teamcity and ...
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1answer
60 views

Azure VM Unwanted User-Agent Filtering/Blocking

I recently migrated our WP site to a Debian 8 VM running on Azure. Since then, we are unable to process credit card payments through the RedSys payment gateway. It seems that upon successful payment, ...
2
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2answers
661 views

Azure Virtual Machine can't serve websites

I am unable to get an Azure VM running Windows Server 2012 to serve up the IIS default website from it's public static IP. Created a VM running Win Server 2012 R2 and installed web server role. ...
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2answers
2k views

How can I use all memory on the ESXi 5 host?

I am under the impression that 2 of the 6 GB on a ESXi 5 host are not used. This is a single host with a free licence. When I assign resources to the VMs there is only 4GB available, and under "...
0
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0answers
31 views

IP Address and Dom0 IP Address

What is the difference between normal IP address and Dom0 IP address? As far as I read so far, Dom0 IP is associated with VMs instances but I want to know if it there is a subtle difference here.
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votes
1answer
36 views

Is it a good a idea to create a fake raid 1 for guest on ESXi?

I have an old server with software raid and I would like to install ESXi with 2 hard disks. I have read that I can install a guest (i.e. Ubuntu Server) and add two hard disks in different datastores ...
2
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4answers
7k views

Ideal settings for rdesktop?

For connecting to a Windows 7 virtual machine on a LAN, what would be the ideal settings to specify when using rdesktop in linux so that it feels as close as possible to using a regular Windows 7 ...
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0answers
177 views

XenServer 6.2 VM Performance (SSD, RAID-10, Quad-core)

Greetings everyone :) My configuration is the following: HP C3000 tower enclosure 1st HP Proliant BL460 G1 quad core xeon 2.66GHz 12MB L2 cache, 24GB RAM, BIOS I15 5/2/2011 partnered with HP ...
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1answer
48 views

URL incorrectly redirecting to other site hosted on same server (nginx)

I have an Ubuntu VM running nginx that I'm part way through configuring for SSL. I've defined some custom local domains that I use for development, stored in my hosts file (on the host machine, which ...
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votes
2answers
89 views

sharing resources between virtual machines

After some extensive searching I couldn't find the answer to my question. I'm sorry if this is obvious or not, but I just need to know. I have a server with verry low resources, 2gb of ram and 2 cores....
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0answers
18 views

Cisco VWLC redirect page without authentication, radius or dhcp?

I have a virtual Cisco CMX sytem for the tracking of customers in a smalland a virtual Wireless Lan Controller also from cisco, in it's webconfigure I can choose for it to redirect to a webpage we ...
0
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2answers
104 views

CentOS 7.2 Azure VM - MariaDB/Apache killing memory

I have an Azure VM with CentOS 7.1, Apache 2.4.6, and MariaDB 5.5. The VM has 2 cores and 3.5 GB RAM. The server is only hosting a small WordPress site with almost no traffic. For the past two days, ...
2
votes
2answers
68 views

Azure Red Hat VM

I see lots of stuff in the news about Red Hat partnering with MS Azure, and articles seem to indicate you can fire up a Red Hat VM on Azure now. But when I go to create a new VM, I can't find Red Hat ...
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1answer
26 views

azure vms aren't communicating anymore

This is very weird. I have 2 vms: a Windows 2012 SP1 VM (with AD role) and a Ubuntu Server 14.04 LTS. They share the same vnet, that is 192.168.99.x (same region, same resource group, same vnet, same ...
7
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2answers
2k views

MSTSC: Black Areas on Remote Desktop

I'm connecting from Windows Server 2012 R2 to Hyper-V virtual machine running Windows 8.1 via RDP (mstsc.exe). The VM is hosted on the same machine from which I'm connecting. Everything was fine until ...
0
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2answers
154 views

Is it documented anywhere that adding a disk to a Azure VM causes an unconditional reboot?

I've noticed that adding a new disk to an Ubuntu 14.04 VM running on Azure, caused an unconditional reboot of the Azure VM. When I added a second disk, the VM wasn't rebooted, but the first disk was ...
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votes
1answer
30 views

Azure VM Subdomain

I have an Azure VM and I've pointed it with my domain. I wish to know if it is possible to create a subdomain that points to a new site on the same VM PS - It is a Windows server 2012 and I use IIS.
1
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2answers
126 views

Azure VM instance IP firewall

I assigned an instance-level IP address to my Azure VM. I then configured the SSH "endpoint" from the Azure portal and defined a deny-all policy. However, this policy seems to only affect the cloud ...
0
votes
2answers
41 views

How to migrate a Hyper-V VM from a Desktop PC to a Hyper-V cluster?

Migrating a VM with VMware is easy, from a Workstation to vSphere cluster it can be done with a VMware Converter. I have little experience with Hyper-V though. There is a VM on a Hyper-V on Windows 8....
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2answers
81 views

Nginx - Caching/processing of data when uploading a file over a reverse proxy

I am running multiple Virtual Machines (Proxmox) which each have limited storage amounts. As I am also running a File-Uploading service, I am interested if a Reverse Proxy needs more than 30GB of ...
0
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0answers
16 views

Access Xenserver virtual machine in lan

I have created two virtual machines from xen server. both vm are Ubuntu server. I have hosted a application in one of the vm. It works fine. But I dont know how to access that application from other ...
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votes
2answers
98 views

Automate Windows update on multiple Virtual servers

hope you guys can help. I work for a tech support company that manages servers for many clients in a virtual environment. We personally host about half the clients, while the others have onsite ...
0
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0answers
68 views

Linux / Proxmox KVM machine boots unreliable after migrating to other server

I have a KVM VM running on a Proxmox 2.3 server. The Guest OS inside the KVM machine is an Ubuntu 12.04 LTS 64 bit. I took a consistent backup of the VM (Proxmox VE backup function) and restored the ...
1
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1answer
201 views

HTTP & HTTPS Apache redirect to internal IP Virtual Machine

Here's my basic setup: Router forwarding port's 80 and 443 to Ubuntu Server 14.04 running apache. Works great. Running several virtual machines (QEMU/KVM) on Ubuntu server. VM's are in bridged mode ...
0
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0answers
29 views

Can't access Apache webserver setup from virtual machine [closed]

I have installed Apache Webserver on my CentOS virtual machine along with the mod_security, then I start the apache webserver using the following command, cd /usr/local/apache2/bin ./httpd -k start ...