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Gentoo

Encryption in Gentoo and GNOME

Filed under
Gentoo
GNOME
  • On OpenPGP (GnuPG) key management

    Over the time, a number of developers have had problems following the Gentoo OpenPGP key policy (GLEP 63. In particular, the key expiration requirements have resulted in many developers wanting to replace their key unnecessarily. I’ve been asked to write some instructions on managing your OpenPGP key, and I’ve decided to go for a full blog post with some less-known tips. I won’t be getting into detailed explanations how to use GnuPG though — you may still need to read the documentation after all.

    [...]

    Signing keys are used to sign data, i.e. to prove its authenticity. Using multiple signing subkeys is rather trivial — you can explicitly specify the key to use while creating a signature (note that you need to append ! to key-id to force non-default subkey), and GnuPG will automatically use the correct subkey when verifying the signature. To reduce the wear of your main signing subkey, you can create a separate signing subkey for Gentoo commits. Or you can go ever further, and have a separate signing subkey for each machine you’re using (and keep only the appropriate key on each machine).

  • Fractal Hackfest, Strasbourg (day 2)

    The encryption is a needed feature but encryption is hard to do in rooms. Matrix uses public-key cryptography, for rooms they are using Megolm, that's a protocol to exchange encrypted messages with more than one and share that message keys in a one-to-one secure communication.

    I don't know a lot about this E2E because for me it's more important to have the client working with a basic functionality before the encryption. So you should read the official doc because maybe this that I'm writing here is completely wrong.

    To do all this E2E key sharing, client side encryption and communication, Riot has three different implementations of the same lib, so they have this code in the JavaScript SDK, the same ported to iOS version in ObjectiveC and the same ported to Android in Java. Below this lib there's the libolm that does the real encryption.

Copyright 101 for Gentoo contributors

Filed under
Gentoo
Legal

While the work on new Gentoo copyright policy is still in progress, I think it would be reasonable to write a short article on copyright in general, for the benefit of Gentoo developers and contributors (proxied maintainers, in particular). There are some common misconceptions regarding copyright, and I would like to specifically focus on correcting them. Hopefully, this will reduce the risk of users submitting ebuilds and other files in violation of copyrights of other parties.

First of all, I’d like to point out that IANAL. The following information is based on what I’ve gathered from various sources over the years. Some or all of it may be incorrect. I take no responsibility for that. When in doubt, please contact a lawyer.

Secondly, the copyright laws vary from country to country. In particular, I have no clue how they work across two countries with incompatible laws. I attempt to provide a baseline that should work both for US and EU, i.e. ‘stay on the safe side’. However, there is no guarantee that it will work everywhere.

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Redcore Linux Makes Gentoo Easy

Filed under
Linux
Gentoo

Raise your hand if you’ve always wanted to try Gentoo Linux but never did because you didn’t have either the time or the skills to invest in such a challenging installation. I’m sure there are plenty of Linux users out there not willing to admit this, but it’s okay, really; installing Gentoo is a challenge, and it can be very time consuming. In the end, however, installing Gentoo will result in a very personalized Linux desktop that offers the fulfillment of saying, “I did it!”

So, what’s a curious Linux user to do, when they want to experience this elite distribution? One option is to turn to the likes of Redcore Linux. Redcore does what many have tried (and few have succeeded in doing) in bringing Gentoo to the masses. In fact, Sabayon Linux is the only other distro I can think of that’s truly succeeded in bringing a level of simplicity to Gentoo Linux that many users can enjoy. And while Sabayon is still very much in active development, it’s good to know there are others attempting what might have once been deemed impossible.

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[Old] Distributions are becoming irrelevant: difference was our strength and our liability

Filed under
GNU
Linux
Gentoo

For someone that has spent the past thirteen years defining himself as a developer of a Linux distribution (whether I really am still a Gentoo Linux developer or not is up for debate I’m sure), having to write a title like this is obviously hard. But from the day I started working on open source software to now I have grown a lot, and I have realized I have been wrong about many things in the past.

One thing that I realized recently is that nowadays, distributions lost the war. As the title of this post says, difference is our strength, but at the same time, it is also the seed of our ruin. Take distributions: Gentoo, Fedora, Debian, SuSE, Archlinux, Ubuntu. They all look and act differently, focusing on different target users, and because of this they differ significantly in which software they make available, which versions are made available, and how much effort is spent on testing, both the package itself and the system integration.

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Review: Sabayon and Antergos

Filed under
Gentoo
Reviews

Sabayon is a Gentoo-based distribution which is available in many desktop editions as well as a server edition. Sabayon strives to provide a working system out-of-the-box, saving the user a lot of time when it comes to configuring the operating system. Sabayon provides several categories of installation media. The project uses a rolling release model and the distribution's many editions are provided in Stable, Monthly and Daily snapshots. It has been about a year since the last Stable set of installation media was produced and so I decided to explore one of the monthly snapshots.

I began with the MATE edition of Sabayon's Monthly snapshot, a 2GB download which I confirmed downloaded properly using the distribution's checksums. Booting from the live media brought up a menu asking if we would like to start a live desktop environment, launch a text-based installer, start in safe mode or launch a live text console. I was surprised when taking the live desktop option booted the distribution to a text console and showed me a login prompt.

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SystemRescueCd

Filed under
GNU
Linux
Gentoo

If you accidentally delete data or format a disk, good advice can be expensive. Or maybe not: You can undo many data losses with SystemRescueCd.

The price for mass storage devices of all types has been falling steadily in recent years, with a simultaneous increase in capacity. As a result, users are storing more and more data on local storage media – often without worrying about backing it up. Once the milk has been spilled, the anxious search begins for important photos, videos, correspondence, and spreadsheets. SystemRescueCd can help in these cases by providing a comprehensive toolbox for every computer, with the possibility of restoring lost items.

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Calculate Linux 17.12.2 released

Filed under
Gentoo

We are pleased to announce the release of Calculate Linux 17.12.2, based on Gentoo 17.0. Therefore, the whole of the packages were rebuilt and some fixes done.

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Gentoo-Based Calculate Linux 17.12 New Year's Eve Release Adds SoftRaid Support

Filed under
Gentoo

Coming six months after version 17.6, Calculate Linux 17.12 introduces some new features and improvements like SoftRaid support, better automatic partitioning of drives, support for third-party overlays, better application task scheduling with the MuQSS kernel patch, as well as less memory load with the UKSM kernel patch.

Under the hood, Calculate Linux 17.12 is powered by the latest Linux 4.14 LTS (Long Term Support) kernel and X.Org Server 1.19.5 display server, uses a PAE binary kernel for 32-bit computes, updates GCC (GNU Compiler Collection) to version 6.4, optimizes all server kernel settings, and it launches Calculate Utilities server through D-Bus instead of running in the background, for better performance.

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Calculate Linux 17.12 released

Filed under
Gentoo

On the New Year's Eve, meet Calculate Linux 17.12! This latest release features installation on software RAID and offers still better load and memory balance.

Eight flavors are now available for download: Calculate Linux Desktop supplied with the KDE (CLD), Cinnamon (CLDC), Mate (CLDM) or else Xfce (CLDX) environment, Calculate Directory Server (CDS), Calculate Linux Scratch (CLS), Calculate Scratch Server (CSS) an Calculate Container Scratch (CCS).

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Elivepatch Aims To Make Live Kernel Patching Easier On Gentoo

Filed under
Gentoo

Elivepatch is a new means of live kernel patching of Gentoo Linux and works in a distributed manner.

Elivepatch offers distributed live patch building via a client/server model and allows for automatic live patching of Linux kernel CVEs and allows for incremental live patching.

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