Category Archives: Notes

QEMU/KVM Attaching a Virtual NIC Directly to a Physical Interface

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Man, it took me a while to figure out how to do this! Over on Attaching a Virtual NIC Directly to a Physical Interface I figured out I could use this XML in Virtual Machine Manager (virt-manager) for my NIC device:

<interface type='direct'>
  <source dev='enp9s0' mode='bridge'/>
</interface>

That then gets expanded automatically to something like this:

<interface type="direct">
  <mac address="52:54:00:ce:5b:09"/>
  <source dev="enp9s0" mode="bridge"/>
  <target dev="macvtap4"/>
  <model type="rtl8139"/>
  <alias name="net0"/>
  <address type="pci" domain="0x0000" bus="0x10" slot="0x01" function="0x0"/>
</interface>

Update: ah, balls. This doesn’t completely work, because the guest can’t connect to the host, and vice versa, even though both the host and the guest can connect to the internet. This is a problem for another day. Maybe this or this will help?

Good learners

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I was reading about Neil Postman and found myself on the inquiry education page. It says that all good learners have:

  • Self-confidence in their learning ability
  • Pleasure in problem solving
  • A keen sense of relevance
  • Reliance on their own judgment over other people’s or society’s
  • No fear of being wrong
  • No haste in answering
  • Flexibility in point of view
  • Respect for facts, and the ability to distinguish between fact and opinion
  • No need for final answers to all questions, and comfort in not knowing an answer to difficult questions rather than settling for a simplistic answer

Watch Loupe

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This morning my new eyeglasses arrived, they are these ones from AliExpress: Watch Loupe Glasses Magnifying Repair Tool Loop Magnifiers Watchmaker Jewelry Jewelers Magnifier Foreye Convenient Professional.

Rather than do an unboxing video I thought I’d just write it up in this blog post.

There’s a headband type thing that comes with them that looks rather cheap and flimsy (it is), but it’s actually quite functional and practical.

The 20X magnification is my fav, and I might even see if I can get something with higher magnification one day.

John's new eyeglasses

The headband that goes with the eyeglasses

The Problems of Philosophy, further reading

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At the end of The Problems of Philosophy, Bertrand Russell says:

The student who wishes to acquire an elementary knowledge of
philosophy will find it both easier and more profitable to read some
of the works of the great philosophers than to attempt to derive an
all-round view from handbooks. The following are specially
recommended: