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This month
OpenNebula :: about
by camel
OpenNebula transforms a physical cluster into a flexible virtual infrastructure which dynamically adapts to the changing demands of a service workload. OpenNebula leverages existing virtualization platforms to create a new virtualization layer between the service and the physical infrastructure. This new layer supports the execution of the services on a physical cluster, extending the benefits of VMMs (Virtual Machine Monitors) from a single physical resource to a cluster of resources. OpenNebula effectively decouples a server (deployed as a pre-configured VM) not only from the physical infrastructure but also from its physical location.
Installing Xen On An Ubuntu 8.04 (Hardy Heron) Server From The Ubuntu Repositories | HowtoForge - Linux Howtos and Tutorials
by camel
This tutorial provides step-by-step instructions on how to install Xen on an Ubuntu Hardy Heron (Ubuntu 8.04) server system (i386). You can find all the software used here in the Ubuntu repositories, so no external files (apart from a fixed Ubuntu Xen kernel to enable networking for the virtual machines) or compilation are needed.
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June 2008
flv streaming with lighttpd
by camel
& 2 others
(via)
1.4.11 got a new module for streaming Flash movie files called mod_flv_streaming. This module allows you to seek in FLV files using the high performance infrastructure of lighttpd.
The idea is simple and explained and implemented on ‘Streaming’ flv video via PHP, take two at http://www.flashcomguru.com/
But instead of streaming the file through PHP we do it in the webserver. The module expects a request for the URL which matches flv-streaming.extensions and can handle a ’?start=’ as part of the request.
The information to pass into the ‘start’ parameter is extractly by the flash-player from the meta-data of the flv-files. The meta-data can be setup with flvtool2
Now I leave it to you to combine this with mod_secdownload to create a flv-streaming server for free with deep/hot linking protected movies.
server.modules = (
...,
"mod_secdownload", ## optional
"mod_flv_streaming",
...
)
flv-streaming.extensions = ( ".flv" )
Take the flash-player from flashcomguru and adjust the URL in the player and try yourself.
Un peu de tout » Blog Archive » Ubuntu Server : upgrade de 7.10 en 8.04
by jean-gael
(via)
sudo aptitude install update-manager-core
How To Set Up A Loadbalanced High-Availability Apache Cluster Based On Ubuntu 8.04 LTS | HowtoForge - Linux Howtos and Tutorials
by camel
This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another "Single Point Of Failure", we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.
May 2008
