VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.
Some of the features of VirtualBox are:
- Modularity. VirtualBox has an extremely modular design with well-defined internal programming interfaces and a client/server design. This makes it easy to control it from several interfaces at once: for example, you can start a virtual machine in a typical virtual machine GUI and then control that machine from the command line, or possibly remotely. VirtualBox also comes with a full Software Development Kit: even though it is Open Source Software, you don't have to hack the source to write a new interface for VirtualBox.
- Virtual machine descriptions in XML. The configuration settings of virtual machines are stored entirely in XML and are independent of the local machines. Virtual machine definitions can therefore easily be ported to other computers.
# The following items were fixed and/or added:
* VRDP: fixed screen corruption
* VRDP: fixed screen freeze
* ATA: fixed a possible crash during ATAPI passthrough with certain guests
* NAT: the interface stopped working after a lot of failed ICMP requests (bug #9371)
* Metrics: fixed potential problem with invalid access in guest metrics collection upon VM destruction
* Main: fixed incorrect framebuffer information after leaving the fullscreen mode with X11 guests, this lead to a scrambled preview window in the GUI for example
* VBoxSVC: fixed crash under rare circumstances (e.g. client crash)
* VMDK/VHD: fixed a possible corruption with host cache disabled when using snapshots under rare circumstances (bug #9749)
* OVF/OVA: fixed broken disk images on import under rare circumstances
* Mac OS X hosts: fixed the problem with duplicate packets when bridged to wireless interface (bug #9648)
* Windows Additions: implemented faster detection of logged-in guest users and stale sessions
* Linux guests: fixes for Linux 3.2