Virtual machines can access hardware components, networking interfaces, storage devices, video cards, etc. On the other hand, a virtual machine is an emulated version of a computer system running on another system. Once a hypervisor is installed on the host system, it can be started and stopped, similar to a normal program without the need for rebooting the main system. The most common types of hypervisors are hosted hypervisors installed on the host system as normal applications. What is a Hypervisor?Ī hypervisor is a program that allows users to create, run and manage virtual machines. Feel free to skip if you are familiar with the concepts. This tutorial will show you how to use Virtual-Box as the Hypervisor to run Kali-Linux as a virtual machine.īefore we begin, allow me to give a few theory concepts about virtualization before getting to the practical part. That allows you to install tools, test systems, and other tools on your virtual machine without affecting the main host. Operating systems that run using a hypervisor will operate as they would in the actual hardware. It allows users to run more than one operating system without installing them on the actual hardware. There might be a performance difference between VMware server 2 and Virtualbox, but options for settings are pretty low for me, and when choosing between Virtualbox or VMware player, I would take Virtualbox.Virtualization involves running a virtual computer system in a separated layer from the actual computer hardware. I never tested VMware player, it is too low-end for me. VMware server 2 knows it only experimentally you need to set it up through a command, and VMware server 1 is slower. Virtualbox can use VT-X or AMD-V and it is really user friendly. KVM can run in a different mode without these instructions. The problem is that if you want to use KVM with its performance, you need to have CPU with Intel VT-X or AMD-V instructions. If you want to use Windows VMs and Linux VMs and you care about performance, use ESXi. But, if you want to use a bare metal hypervisor, the fastest will be Xenserver when using Linux-only VMs. I didn't try to test VMware ESXi and Citrix Xenserver application performance. So if you want to virtualize with bigger power and small performance degradation, use KVM. The others are just applications running on OS layer. It takes less % of cpu to virtualize power for VM then others, because KVM is a module inside the Linux kernel. The fastest is KVM, then Virtualbox, VMware server 2, VMware server 1, and finally QEMU. I ran a few tests to check CPU power under Virtualbox, KVM, VMware server 1 and VMware server 2. I can tell you - this is most stable, it is not newest, but for server - greatest option for me. Only 256 MB RAM, x32 Debian and a 2GB partition - enough, that's all. We have one small VM for teamspeak, Ventrillo and so on. For debian there is 2GB partition enough. Before Lubuntu I used Xubuntu, because it was faster than Ubuntu as well.Īlso, Ubuntu needs about 4.5GB of space. I think (but I'm not sure) that Lubuntu uses the same packages as Ubuntu. It means "Low Ubuntu" and is meant for slow PCs, so it' sfaster than ordinary Ubuntu. If you hate the slow speed of Ubuntu but don't want to use Debian, use Lubuntu. Nowadays I use Lubuntu desktop in Virtualbox. On the other hand, when I tried to autoremove some libraries on Ubuntu it installed absolutely everything. Ubuntu also has more packages and newer packages. On desktops I had problems with Debian, while APT installations from the web were working without a problem on Ubuntu. I'm not saying not to use Ubuntu at all, but for servers I'd favor Debian even if you're new. If you want a stable server and want to maximize free RAM, choose Debian instead. Ubuntu Server uses newer versions of packages, but it also complicates installations and compilation of some stable apps. Ordinary Ubuntu installs about 1300 packages, and ordinary desktop Debian installs 900 to 1100 packages. Also, if you do a clean install of Ubuntu Server, it will install two to three hundred packages, while Debian only installs 50 to 90. Consumption of RAM was much bigger on Ubuntu Server when comparing it to Debian. When comparing Debian and Ubuntu Server: Ubuntu Server boots slower/later. So if your Debian has any problems, you can solve them on the Ubuntu forums, which is a big advantage. Whatever you need, you can just install it later and it is still very quick, and it takes almost no memory. (x32 was taking only 16-32Mb of RAM and 圆4 was taking about 48-80Mb when it boots up). It boots very quickly and consumes just a few MB of RAM. If you install Debian, install just clean Debian -> CLI and nothing else. I used both of them, so don't judge me please. For a server, forget Ubuntu Server and use Debian instead. For starting with Linux in a VM, I recommend Ubuntu.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |