linux

PXE booting Linux qemu kvm VMs with Windows DHCP and WDS



[UPDATE]: Read the updated article here

So VMware Server 2.x on Fedora 11 has been driving me nuts. I recently re-imaged my workstation and decided to ditch VMware Server and give Linux qemu-kvm a try since it is now the default hypervisor in Fedora and will be the standard hypervisor going forward in Red Hat Enterprise Linux (http://www.redhat.com/rhel).

We are an almost exclusively Windows shop so we use Windows DHCP servers and Windows Deployment Services (WDS/RIS) server to image all of our workstations and servers via PXE booting. If we were using an ISC dhcpd server things would probably have been a lot easier. Below I describe how I get things (partially) working.

vmware server virtual machine will not power on - check the kvm linux kernel module



I've had this a couple of times now in the last few weeks. I wanted to try out the Linux KVM virtualization hypervisor that comes with Fedora 11 since VMware Server 2 is giving my fits on F11 x86_64 so I installed qemu and all the supporting packages via yum.

I realized that I can't do some things with KVM that I can with VMware Server so I'm putting up with the signal 6 crashes every week or so and went back to VMware Server 2.0.1 for Linux. In order to get that running I had to apply some patches to get the kernel modules compiled but that's been done for a while.

Web Application Firewalls - Using Drupal with mod_security



First some background about web applications firewalls for the uninitiated. If you already know what a web app firewall is then you can skip down to the bottom of the post for some mod_security rules that will help you with Drupal Views, the GMap module admin pages, and Google Webmaster Tools.

TweetDeck Installation Errors On Linux- 2004, 5007



Twitter is all the rage these days and I've been using one of the more popular desktop Twitter applications - TweetDeck http://www.tweetdeck.com. TweetDeck runs on top of Adobe AIR - http://www.adobe.com/products/air/.

My day-to-day OS on my workstation is Linux (Fedora 10 to be exact). I installed Adobe AIR and TweetDeck with no issues on the initial installation.

VMware Server Performance Tuning on Linux



There are a lot of postings out on the Net about performance tuning VMware products to run more efficiently. I'd thought I'd share some that I thought were farily useful (most related to running VMware Server on a Linux host).

OCS 2007, Linux, SIPE, and Pidgin



[UPDATE] 2009-03-13

Happy Friday the 13th. Just an update to this story - the SIPE plugin has been worked on by a number of great people including Gabriel Burt from Novell among a host of others. It is now stable and can be used with recent versions of Pidgin.

Check out their great work at http://sipe.sourceforge.net/. The source code can be downloaded at https://sourceforge.net/projects/sipe/files/

[End UPDATE]

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