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Mathieu Trudel-Lapierre
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Ubuntu Developer
Ubuntu Developer

812 followers
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Building a local testing lab with Ubuntu, MAAS and netplan
Overview I'm presenting here the technical aspects of setting up a small-scale testing lab in my basement, using as little hardware as possible, and keeping costs to a minimum. For one thing, systems needed to be mobile if possible, easy to replace, and as ...
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Call for testing: netplan.io in 18.04
Since 17.10, netplan has been the default network configuration tool in Ubuntu. Since then, it has grown in features, bug fixes, and even got its package renamed in the archive from "nplan" to netplan.io. We added better routing, improved handling for bridg...
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Backing up GPG keys
Using PGP/GPG keys for a long period of time (either expiring keys, or extending expiration dates) and the potential for travel, for hardware to fail, or for life's other events means that eventually  rather than potentially , you will end up in a situation...
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Figured I'd post something not IT-related here too: I mostly finished another project, my first "big" sewing project. I made an apron for working in the shop and BBQ'ing and such. It's just missing some finishing touches (a couple of pockets, basically). I made it with 14 ounce denim, some navy blue thread I already had around, and bought some hardware to hook the leg straps and complete the adjustable neck.
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How to sign things for Secure Boot
Secure Boot signing The whole concept of Secure Boot requires that there exists a trust chain, from the very first thing loaded by the hardware (the firmware code), all the way through to the last things loaded by the operating system as part of the kernel:...
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Trying something new. I recorded my first attempt at turning wood. Only in French though.
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Quelque chose de nouveau: j'ai décidé d'enregistrer mon premier essai au tournage du bois.
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Netplan by default in 17.10
Friday, I uploaded an updated nplan package (version 0.24) to change its Priority: field to important , as well as an update of ubuntu-meta (following a seeds update), to replace ifupdown with nplan in the minimal seed. What this means concretely is that np...
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An overview of UEFI Secure Boot on Ubuntu
Secure Boot is here Ubuntu has now supported UEFI booting and Secure Boot for long enough that it is available, and reasonably up to date, on all supported releases. Here is how Secure Boot works. An overview I'm including a diagram here; I know it's a litt...
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ss: another way to get socket statistics
In my last blog post I mentioned ss , another tool that comes with the iproute2  package and allows you to query statistics about sockets. The same thing that can be done with netstat , with the added benefit that it is typically a little bit faster, and sh...
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If you're still using ifconfig, you're living in the past
The world evolves I regularly see "recommendations" to use ifconfig to get interface information in mailing list posts or bug reports and other places. I might even be guilty of it myself. Still, the world of networking as evolved quite a lot since ifconfig...
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