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Currently Browsing: Virtualization

Network performance with VMXNET3 on Windows Server 2008 R2

Recently we ran into issues when using the VMXNET3 driver and Windows Server 2008 R2, according to VMWare you may experience issues similar to: •Poor performance •Packet loss •Network latency •Slow data transfer The issue may be caused by Windows TCP Stack offloading the usage of the network interface to the CPU. To resolve this issue, disable the TCP Checksum Offload feature, as well enable  RSS on the... read more

How To Connect to a Local Directory on a Windows Host with a Linux Guest in VirtualBox

Recently I felt the need to retrieve files from my Windows host on my Linux guest in VirtualBox 4.2.6. This is an easy task with the VBoxAdditions installed on the guest OS and a simple change in the shared folders in VirtualBox. If VBoxAdditions are not installed on the guest host you must first get them installed. If you are running Fedora 17 or 18 look here for the instructions. Next make sure to power... read more

How to Install VMWare Workstation 8.0.4 on Fedora 17

Recently ran into an issue were I was receiving VMWare module compilation errors when installing VMWare Workstation 8.0.4. The error I was receiving was it couldn’t execute and find the kernel-headers which were installed but not where VMWare was looking for them. Download and install latest licensed version 8.0.4 from http://www.vmware.com/support $ chmod +x... read more

How To Set Your VirtualBox 4.2 VM to Automatically Startup

Being system administrators and tweakers we always like to make things automatically take care of themselves, right? Well of course we do and that’s where any auto starts we find are likely to get put in place. A new feature added in VirtualBox 4.2 is autostart, this feature is available in Linux, Solaris and MacOSX hosts only. Let’s say there is a VirtualBox VM you start everytime  you... read more

VirtualBox 4.1.20 Released

VirtualBox 4.1.20 Released !!! make sure to update your installation to get the latest bugfixes,! This is a maintenance release. The following items were fixed and/or added: VMM: fixed a crash under rare circumstances for VMs running without hardware virtualization VMM: fixed a code analysis bug for certain displacement instructions for VMs running without hardware virtualization VMM: fixed an... read more

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