Category Archives: Virtualization

Kernel-based Virtual Machine (KVM)

Posted on March 28, 2017 by admin

Ubuntu KVM Guest DNS resolution not working KVM Windows Server 2012 Guest Port Forwarding KVM Guest forwarding port to Host KVM ubuntu guest console not working Managing Virtual Machines with virt-manager virsh error: Unable to create cgroup for x: No

Managing Virtual Machines with virt-manager

Posted on March 25, 2017 by admin

The virt-manager application is a desktop user interface for managing virtual machines through libvirt. It primarily targets KVM VMs, but also manages Xen and LXC (linux containers). https://virt-manager.org/ To install on Ubuntu, run To connect to remote KVM or Xen

Hyper-V Failed Secure Boot Verification

Posted on March 25, 2017 by admin

When installing CentOS on a Hyper-V server, i get following error Boot Failed. EFI SCSI Device. Failed Secure Boot Verification This is because the VM is created with Generation 2. Solution 1 Disable secure boot under Settings. Solution 2 Use

Install Xen on CentOS

Posted on March 23, 2017 by admin

Managing Virtual Machines with virt-manager Xen is an Open Source Virtualization software developed by the Linux Foundation and is supported by Intel. Amazon AWS use Xen for powering its EC2 instances. Other alternative for Xen are KVM, OpenVZ, WMWare and

Install LetsEncrypt SSL on Proxmox Node

Posted on December 3, 2016 by admin

To install LetsEncrypt SSL certificate for Proxmox VE Server, first install certbot-auto, this is a command line tool to generate/renew LetsEncrypt SSL certificate. Now run certbot-auto, when you run first time, it will download some required packages and install it.