Virtualization
Transparent migration of virtual infrastructures in large datacenters for Cloud Computing.
Roberto Bifulco — Mon, 08/22/2011 - 21:34
Cloud-enabled datacenters need advanced support for an integrated management of platform virtualization technologies. The networking infrastructure of large-scale datacenters is implemented according to redundant multi-tiered architectures whose layers operate at Layer 3 of the networking stack. Splitting the network infrastructure of a datacenter in a number of IP subnets, however, creates limits to the migration of Virtual Machines, reducing the possibility for administrators to efficiently balance the load and reduce the energy consumption of the whole infrastructure.
How to install a Windows XP virtual machine using a SATA controller in Virtual Box
Roberto Bifulco — Sat, 06/18/2011 - 15:23
SATA controllers show better performance in comparison to the IDE ones, even in emulated environment like the Virtual Box's one. To create a VirtualBox virtual machine that uses an emulated SATA controller you can just specify the controller type in the virtual machine description, enable ACPI and IOAPIC, and all should work!
How to make VirtualBox's VM screen resolution independent from the host machine resolution
Roberto Bifulco — Wed, 03/30/2011 - 23:21
Some months ago I was playing around with ORACLE Virtual Box for one of my works. The work was a server installation for a first virtualization evaluation: the interested company decided to try virtualization in an unobtrusive way, starting smoothly, using an existing os installation.
Mounting a shared folder between host and guest machine in VirtualBox (for Linux)
Roberto Bifulco — Thu, 02/03/2011 - 21:49
Oracle VirtualBox exposes an interesting feature to share a folder between the host and the guest machine.
To mount a shared folder from the guest command line just follow these steps (We assume that the shell is in the root [ / ] directory and that the name of the host's shared directory is "Downloads"):
NEPTUNE for fast and easy deployment of OMF virtual network testbeds
Roberto Bifulco — Tue, 11/09/2010 - 19:39
In the last few years many emulation systems have been developed to evaluate the effectiveness of new protocols and applications in realistic and controllable network scenarios. NEPTUNE is a flexible architecture for cluster-based network emulation systems designed and implemented at University of Napoli Federico II.
Integrating a Network IDS into an Open Source Cloud Computing Environment
Roberto Bifulco — Tue, 09/07/2010 - 13:56
The success of the Cloud Computing paradigm may be jeopardized by concerns about the risk of misuse of this model aimed at conducting illegal activities. In this paper we address the issue of detecting Denial of Service attacks performed by means of resources acquired on-demand on a Cloud Computing platform. To this purpose, we propose to investigate the consequences of the use of a distributed strategy to detect and block attacks, or other malicious activities, originated by misbehaving customers of a Cloud Computing provider.
Valutazione di piattaforme e tecnologie per sistemi di Cloud Computing
Roberto Bifulco — Tue, 08/10/2010 - 21:16
L’evoluzione delle tecnologie e delle modalità di fruizione delle stesse da parte degli utenti finali e/o grandi compagnie sta spostando la visione classica di ICT, ovvero grandi datacentre localizzati sul territorio e fruizione dei servizi erogati mediante Personal Computer.
