http://netvouz.com/falko/tag/virtual?feed=rss&pg=6 falko's bookmarks tagged "virtual" on Netvouz http://www.howtoforge.com/managing-multiple-kvm-hosts-with-enomalism2-ubuntu-8.10 In my previous guide about how to set up Enomalism2 on Ubuntu 8.10 I concentrated on just one KVM host. This tutorial is an extension to that article in that it shows how to add further Ubuntu 8.10 KVM hosts to the setup that can then be managed from one single control panel. falko Thu, 23 Apr 2009 11:14:24 GMT http://www.howtoforge.com/managing-openvz-with-hypervm-on-centos-5.2 HyperVM is a multi-platform, multi-tiered, multi-server, multi-virtualization web based application that will allow you to create and manage different virtual machines each based on different technologies across machines and platforms. Currently it supports OpenVZ and Xen virtualization and is available for RHEL 4/5 as well as CentOS 4 and CentOS 5. This tutorial shows how to install it on a CentOS 5.2 server to control OpenVZ containers. I will also explain how to manage OpenVZ containers with HyperVM on a remote CentOS 5.2 server ("slave"). falko Thu, 05 Feb 2009 12:34:03 GMT http://www.howtoforge.com/managing-openvz-with-vtonf-control-panel-on-centos-5.2 Vtonf is a free web-based control panel (released under the GPL license) for managing virtual private servers (VPS) based on OpenVZ. It makes it very easy to create and manage OpenVZ VMs even for people with little technical knowledge. Right now, Vtonf is available only for RedHat, Fedora, and CentOS (support for Debian is planned), therefore I describe its installation and usage on a CentOS 5.2 server. falko Tue, 02 Dec 2008 15:19:25 GMT http://www.howtoforge.com/paravirtualization-with-xen-4.0-on-debian-squeeze-amd64 This tutorial provides step-by-step instructions on how to install Xen 4.0 on a Debian Squeeze (6.0) system (AMD64) and create paravirtualized guests. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS falko Thu, 31 Mar 2011 09:30:00 GMT http://www.howtoforge.com/paravirtualization-with-xen-on-centos-5.3-x86_64 This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.3 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no e falko Sun, 17 May 2009 16:41:19 GMT http://www.howtoforge.com/paravirtualization-with-xen-on-centos-5.4-x86_64 This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.4 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other, but still use the same hardware. falko Tue, 15 Dec 2009 12:42:59 GMT http://www.howtoforge.com/paravirtualization-with-xen-on-centos-5.6-x86_64 This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.6 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other, but still use the same hardware. falko Tue, 24 May 2011 10:57:52 GMT http://www.howtoforge.com/postfix-virtual-hosting-with-ldap-and-dovecot-on-ubuntu8.04 I have been running with a MySQL backend for virtual hosting for some time, but when I discovered Phamm and the added FTP feature I decided to switch to LDAP as backend for Postfix with virtual hosting. In view of the fact that the installation and configuration guide of Phamm is lacking some basic information it took me quite some time to put it all together and get it working. Piecing it all together was not simple so I would like to share how I configured it and got it all working toghether. falko Sun, 03 Aug 2008 11:05:20 GMT http://www.howtoforge.com/high-availability-load-balancer-haproxy-heartbeat-debian-etch This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and heartbeat on Debian Etch. The load balancer sits between the user and two (or more) backend Apache web servers that hold the same content. Not only does the load balancer distribute the requests to the two backend Apache servers, it also checks the health of the backend servers. If one of them is down, all requests will automatically be redirected to the remaining backend server. In addition to that, the two load balancer nodes monitor each other using heartbeat, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service. HAProxy is session-aware, which means you can use it with any falko Wed, 07 Nov 2007 12:03:25 GMT http://www.howtoforge.com/haproxy_loadbalancer_debian_etch This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and keepalived on Debian Etch. The load balancer sits between the user and two (or more) backend Apache web servers that hold the same content. Not only does the load balancer distribute the requests to the two backend Apache servers, it also checks the health of the backend servers. If one of them is down, all requests will automatically be redirected to the remaining backend server. In addition to that, the two load balancer nodes monitor each other using keepalived, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service. HAProxy is session-aware, which means you can use it with an falko Mon, 29 Oct 2007 10:07:37 GMT