I kind of dug right into Xen but today as I was investigating pygrub and hvmloader I came across some documentation that I wish I had seen when I first started using Xen. It’s not so much that Xen is poorly documented as the good documentation is hard to find. So here are some good places to start:

• Xen: Frequently Confusing Issues
• Xen Basics
• Xen Users’ Manual
• Virtualization in Xen 3.0

Seems like if you click "Exit" in cssh it ends your entire desktop session. That doesn't seem like a good thing to me.

Also, when playing with the HFSC traffic shaper on a Debian server I managed to lock the system up 3 times (mostly when changing the maximum latency parameters). I think that indicates a pretty serious kernel bug, which is a shame because HFSC is by far the best Linux traffic shaper.

X-Wrt looks like an interesting firmware to try. I’ve been using dd-wrt quite a bit but it’s release schedule is slow and I notice a lot of problems with my wrt54g devices randomly disconnecting. Of course, it could be a hardware problem but the only way to know for sure is to try another firmware. I like the principles behind OpenWrt and X-Wrt so the only question is how it compared to other options.

• http://x-wrt.org/
• http://forum.x-wrt.org/
• http://wiki.x-wrt.org/
• http://www.linux.com/articles/114338

I came across these icons which have friendly licensing:

http://dryicons.com/free-icons/

I think I may try some of these in a project or 2.

Turns out that VirtualBox doesn't support the Ubuntu Server Linux kernel due to it's reliance on PAE support (even in 64-bit apparently). The solution is to run the generic kernel instead. I'm not sure if that can be done when installing Ubuntu Server, or if one has to install Ubuntu desktop and then strip it down. I'll have to do some testing when I get the time.

For more information about what guest operating systems are supported in virtual box:
http://www.virtualbox.org/wiki/Guest_OSes