Scott's Weblog The weblog of an IT pro specializing in virtualization, networking, open source, and cloud computing

VLANs and Port Groups

One topic that I had been very interested in exploring was the idea of VLAN tagging within ESX Server. ESX Server offers the ability to establish 802.1Q trunks with compatible switches so that 802.1Q tagged frames can be routed to appropriately configured “port groups” within ESX Server. This would allow a single physical host server to run virtual servers in multiple VLANs without requiring a separate physical connection for each VLAN.

(Read more...)

FreeNAS on ESX Server

As part of ongoing interoperability testing with ESX Server, I tested running FreeNAS (version 0.65) on ESX Server 2.5.3 today. Since FreeNAS is based on FreeBSD (which VMware states is a supported guest operating system for ESX Server), I didn’t really expect any major surprises. I was wrong.

(Read more...)

Open Virtual Disk Formats

VMware has announced that it is making its virtual machine disk (VMDK) format openly available, downloadable and free of charge. This introduction sets the stage for a battle for open virtual disk formats, with the major players being VMware and Microsoft.

(Read more...)

Mac OS X Virtualization Products

Finally! With the introduction of Parallels Workstation for Mac OS X (official announcement here), Intel-based Mac owners have the ability to run unmodified instances of Linux and Windows on their Mac hardware. This has been my “killer wish” ever since the introduction of the Intel-based Macs.

(Read more...)

Learning to Love NetNewsWire

When I upgraded to Mac OS X 10.4 “Tiger” a few weeks ago, I gave up my existing RSS reader (PulpFiction) in search of a new application (this was at the same time I had to rebuild my list of RSS subscriptions). Having finally settled on NetNewsWire, I’m now learning to love the application that at first irritated me.

(Read more...)

Modifying DHCP Client Operation on OpenBSD

One more quick lesson learned from the recent experiment getting OpenBSD running on VMware ESX Server involved modifying the default operation of OpenBSD’s DHCP client, dhclient.

(Read more...)

Static Routes on OpenBSD

Once OpenBSD was running on ESX Server, there was a configuration issue that had to be addressed involving static routes. This is probably one of those times where the OpenBSD experts are saying, “This is so simple!”, but I had to search a bit to find the answer. So, for future reference and for the reference of those of us who are not OpenBSD experts (yet), here’s the solution.

(Read more...)

Even Microsoft Knows It

I hope Microsoft Vista is going to address the malware problem that is plaguing Windows users worldwide right now. Even Microsoft knows it’s bad. How bad? Read on.

(Read more...)

New Category Added

To help with the increasing number of articles dealing with virtualization, a “Virtualization” category has been added, and some articles have been re-categorized into this new category.

(Read more...)

Xen Momentum Growing

There is an incredible amount of momentum growing around the open source Xen hypervisor, and it is increasingly looking like market leaders VMware and Microsoft should be less worried about each other and more worried about Xen.

(Read more...)