Questions tagged [virtualization]

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 the various layers are inherently tied.

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Virtual servers on two different physical servers cannot ping each other [closed]

My HYPER-V virtual servers in a physical server (ADA) that I created new, cannot ping the virtual servers on another physical server (ADA2) I created in same location .The opposite is also valid . ...
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Is a loopback interface just another term for virtual interface?

I've been reading through many forums and many questions here on loopback interfaces and a point that is constantly iterated is that a loopback interface is a virtual interface. In hypervisors like ...
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How does a Virtual Network Interface work?

I am studying the concept of containers at the moment. I have got a good grasp of how hardware virtualization enables virtual machines to divide and isolate hardware resources among several VMs and ...
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When we call a product is cloud?

We are arguing what is cloud? Regard definition of Redhat : Cloud computing has several core characteristics: • Self-service: Allows cloud consumers to provision instances with computing resources. • ...
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ESXi 7.X file permissions - how to buypass new security measures

Today i installed a new ESX 7.0 Hypervisor machine. My initial goal was to get some RAID status reporting. I created a python script that i wantet to run from a crontab job. This due to the fact that ...
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KVM host crashes after starting application in guest

We ordered a new dedicated server yesterday and I moved some KVM guest machines from the old KVM host to the new server, which will be our new KVM host. The old KVM host is Intel based and the new one ...
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Ping between 2 devices in GNS3

I just want to make sure 2 devices can communicate in my GNS3. I place 2 Windows Server 2016 VMs and a switch in the center connecter with ethernet. I configured an IP on the same subnetwork on each ...
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error : virPidFileAcquirePath:422 : Failed to acquire pid file '/run/user/1000/libvirt/libvirtd.pid': Resource temporarily unavailable

Anyone have any ideas how to fix this? It looks like the computer is telling me libvirt has no VM to connect to. I could be off the mark there. I am starting to play with vitrd. I am thinking of ...
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85 views

How do I manage last level cache among virtual machines?

Let's say I am gonna run a server to lend virtual machines to clients, like other CSP vendors do. My server has 20 cores, so there will be a total of 5 instances with 4 cores. What I am worried about ...
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31 views

KVM - My switch can manage ACLs, when I create bridged VMs (KVM), does the switch see them as “ports”?

My Cisco Switch has some nifty L3 features like ACLs I will have one of my physical hosts running KVM with multiple VMs. They are networked in bridged mode. I'm not overly familiar, but want to ...
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NAT not working on VirutalBox with kubernetes, PC -> [ VM -> haproxy -> MetalLB -> Ingress controller -> Kubernetes web server ]

Im trying to connect to a webserver deployed in kubernetes, from outside of the vm. I've connected the pod to an ingress controller and gave the ingress controller a LoadBalancer IP via MetalLB, then ...
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148 views

What could cause high iostat await if a disk isn't overutilized?

I have a database running on GCP. Occasionally it gets very slow for a period of minutes (like average statement execution time spikes by 10x or more). The slowness is correlated with increases in the ...
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Virtualbox login lagging

So in our company we currently have a bunch of vms (virtualbox) setup in a gcp instance (specs below) but we are having a hell of lag on the login screen, what could possibly be? (tell me if you need ...
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Unidentified Network on Windows10 VM installed on Proxmox

Please help. I have been trying to make the windows10 VM on Proxmox have network connection but I get unidentified Network on the ethernet card. I have successfully installed the VirtIO Drivers(Redhat ...
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How to connect two LAN networks together and a WAN in a vCenter environment?

At the moment I have two virtual environments in vCenter. The picture below will make clear what I'm telling here. I am running a service on environment 1 that must be able to be accessed from ...

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