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

Remotely Exploitable Flaw in OpenBSD Found

I’ve got a lot of respect for OpenBSD, whose maintainers’ relentless focus on security has really paid off. Until today, the OpenBSD tagline was “only one remote hole in the default install in almost ten years.” Now, due to the discovery of a new critical vulnerability, that tagline must change to its current form: “Only two remote holes in the default install, in more than 10 years!”

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Virtual Security Concerns

About a year ago, I wrote briefly about Reflex VSA, a security appliance designed to operate in the virtual environment to provide additional security functionality to the virtual networking environment. Within the last few days, another security vendor, BlueLane, has joined the effort to provide additional security by releasing their VirtualShield product.

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Comparison of WAFL and ZFS

This comparison of ZFS (Zettabyte File System) and WAFL (Write Anywhere File Layout) by Network Appliance (no direct link for WAFL) is an interesting comparison of these two advanced filesystems and their feature set. Be sure to read the comments for some additional insight on the comparison of the two filesystems and some clarification about supported features.

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Autopatching ESX

Vincent Vlieghe over at Virtrix just published a great how-to on setting up an internal repository for ESX patches. It’s a must-read.

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Restoring VCB Full Backups with VMware Converter

When performing full VM backups with VMware Consolidated Backup (VCB), the end result of the backup operation is a copy of the VMs VMDK files, in 2GB blocks. This format is similar to the format used by VMware Server and VMware Workstation, VMware’s hosted virtualization products. Given that VMware Converter can convert VMs between ESX Server and the hosted virtualization products, I thought, “Why not use VMware Converter to restore VCB backups?”

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VMware Consolidated Backup

VMware Consolidated Backup (VCB) is a new component of Virtual Infrastructure 3, and is designed to facilitate both full-VM and file-level backups of ESX-hosted virtual machines on a SAN. In its current release, it only supports Fibre Channel SANs, but support for iSCSI is supposedly coming in the next release. When used in conjunction with a third-party backup application (such as Backup Exec) and the appropriate integration software, VCB can provide the ability to backup VMs across the SAN (instead of across the network) without the need to install backup agents on every VM. The speed of backups is pretty good, too.

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WordPress Upgrade

I had been stubbornly clinging to WordPress 1.5.2, which worked just fine and, in all reality, provided all the functionality I really needed. I figured it would probably be best to keep up with the newer versions of the software, however, so I decided to upgrade.

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Fusion Beta 2

With everyone and their brother reporting the release of Fusion Beta 2, I’m hardly on the “cutting edge” with this posting. To be honest, I don’t have the time to be on the leading edge of news postings, so rather than just regurgitate the same old stuff again here, I thought I might speak briefly as to the features that matter most to me as an enterprise IT consultant.

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Getting the Hang of Interarchy

Interarchy is a well-respected FTP/SFTP client for Mac OS X, although the feature set now makes calling it an “FTP/SFTP client” a bit of a misnomer. After, when you add in HTTP, WebDAV, and Amazon S3 support, it’s not exactly just an FTP/SFTP client any longer. (For simplicity’s sake, we’ll continue calling it an FTP/SFTP client.) For users of other FTP/SFTP clients, however, Interarchy’s interface is different enough to throw users off and prevent them from really being able to take advantage of the application’s full functionality.

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More on Microsoft versus VMware

Microsoft’s official response to the VMware complaints came in the form of an e-mail to Mary Jo Foley; you can read the full response here (see the addendum at the bottom of the blog posting). In this response, Microsoft Virtualization Strategy General Manager Mike Neil claims:

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