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The Xen Dom-u Kernel And The Kitchen Sink

Does anyone still like configuring and building their own Linux kernels to taste? I do. Call me a nerd, but I actually enjoy spending countless hours slimming down my kernel so it has just enough support for my hardware, with modular support for anything that I might be inclined to plug in. No, the performance […]

Linux’s inner child is a serial killer

No, not Linus’ (though I do wonder about that guy sometimes). I’m talking about the Linux OOM (out of memory) killer which I am highly considering classifying as sentient. I’m finishing up some Xen related programs, one of them is a special watchdog daemon that runs on Xen guests and exports system vitals via Xenbus. […]

The Great Microkernel Debate

Its been some years since the great debate between Linus Torvalds (and friends) vs Andy Tanenbaum on usenet. I’ve only linked the debate itself with an encyclopedic reference, the links to the debaters more or less point to individuals as they were when the great debate happened. If you are a sci-fi fan, you’ll realize […]

Please adopt /etc/vendor

If you package and distribute any kind of POSIX operating system (i.e. it has an /etc), please consider adding a file named /etc/vendor with the following format to your offering: DistroName DistroVersion DistroDomain An Example: Foonix 1.23 One of the biggest headaches for anyone hoping to support as many free operating systems as possible […]

Time for more hobbies

For the longest time, my favorite hobby has been to find some interesting program and pick it apart, or write one of my own. I’m probably one of the few GNU/Linux users who have actually obtained the source code for the core utilities and modified them to suit my needs. I’ve also hacked my kernel […]

A slightly better Xen console

I love the ability to console in to a paravirtualized domain, especially when making changes to firewall rules. What I do not like is what the redirect does to the terminal when using stuff that heavily depends on ncurses, like ‘top’ or the midnight commander. If your not familiar with minicom, its a simple ‘telex […]

Senior, Junior And The Programmer

The job: A server with a 1.2 TB SATA RAID-5 is housing 15 paravirtualized Xen guests via local storage. Each one has at least one LV of 100 – 400 GB. Move them to an identical server with a more sensibly configured RAID without pissing off each user for more than 30 – 40 minutes. […]

Why I use my own DNS resolvers

If you don’t care what DNS (domain name service) is or why its important, you’ll find this post quite boring. For those of you who do care, but don’t know, DNS is what translate domain names into IP addresses and vice versa. If you type ‘’ in your browser, a DNS server (somewhere) is going […]

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