Docker is a virtualization platform that runs on Linux. It allows you to manage and run virtual machines in containers from pre-built images that contain all of the configurations for the virtualized environment. This tutorial will show you how to list containers using the ls command, part of the new… Read More »How to List Containers in Docker (ls Command)
This is an express tutorial on getting Docker up and running on Ubuntu 20.04 – Fast! Docker is a virtualization platform that has exploded in popularity due to its ease of use and low resource overheads. It is used to run applications inside containers, making them… Read More »Guide: Install and Use Docker on Ubuntu 20.04
If you add new physical network interface to the hardware that runs XenServer it won’t appear in XenCenter by default. In order to attach it to VMs or change its settings you’ll need to type in a few commands to XenServer’s CLI. 1. Connect XenServer… Read More »Add physical NIC to XenServer
Citrix XenServer is powerful hypervisor that is based on Linux (Redhat/Centos/Fedora family) and competes with Vmware ESXi and offer wide range of virtualization features for data centers. In general you can do a bare-metal installation of XenServer to your hardware server and create multiple virtual… Read More »Attach ISO image stored in XenServer local storage
While today 2.6.32 is the mainline version of Linux kernel, 2.4 branch is still supported by Linux community developers who fix security bugs there but don’t add any new functionality (unlike 2.6 that grows with new features like a snowball). Sometimes it happens that Linux box runs too much services which cannot be stopped so that admin is not allowed to migrate from 2.4 to 2.6 to keep those services online.
In my example the box runs 2.4.37.7 kernel but Vmware Server 1.0.* fails on it with segmentation fault throwing into the logs the errors below in this post. Does that look familiar to anybody? Is there any solution to run Vmware Server at 2.4.37 kernel? Thank you!
Read More »Problem with Vmware Server 1.0.* and kernel 2.4.37
Want to sort file contents by each line’s lenght? No problems:
artemn@artemn-laptop:~$ cat /etc/passwd | awk '{print length, $0}' | sort -n | awk '{$1=""; print $0 }'
Xen is a free software that runs on a host operating system and allows several guest operating systems to be run on top of the host on the same computer hardware at the same time. The following article tells how to set up Xen cluster… Read More »Xen cluster on Debian for newbies
It’s proven to be that during software development process, research activities and etc., using of virtulization is invaluable. In my practice I use Vmware Server, so the next article would be useful. First of all, we need to find where all our virtual machines are… Read More »Make a copy of virtual machine with Vmware Server
This step-by-step manual provides instructions on how to install freely available VMWare Server at Ubuntu Feisty Fawn Linux (7.04). First of all download installation package here and get free serial code. To get VMWare Server working at Ubuntu 7.04 I recommend to download this patch.… Read More »Vmware Server at Ubuntu Feisty 7.04