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Security: Spectre V1, Gentoo, Google’s Servers and Denuvo DRM

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Security
  • Spectre V1 defense in GCC
  • Signing and distributing Gentoo

    The compromise of the Gentoo's GitHub mirror was certainly embarrassing, but its overall impact on Gentoo users was likely fairly limited. Gentoo and GitHub responded quickly and forcefully to the breach, which greatly limited the damage that could be done; the fact that it was a mirror and not the master copy of Gentoo's repositories made it relatively straightforward to recover from. But the black eye that it gave the project has led some to consider ways to make it even harder for an attacker to add malicious content to Gentoo—even if the distribution's own infrastructure were to be compromised.

    Unlike other distributions, Gentoo is focused on each user building the software packages they want using the Portage software-management tool. This is done by using the emerge tool, which is the usual interface to Portage. Software "packages" are stored as ebuilds, which are sets of files that contain the information and code needed by Portage to build the software. The GitHub compromise altered the ebuilds for three packages to add malicious content so that users who pulled from those repositories would get it.

    Ebuilds are stored in the /usr/portage directory on each system. That local repository is updated using emerge --sync (which uses rsync under the hood), either from Gentoo's infrastructure or one of its mirrors. Alternatively, users can use emerge-webrsync to get snapshots of the Gentoo repository, which are updated daily. Snapshots are individually signed by the Gentoo infrastructure OpenPGP keys, while the /usr/portage tree is signed by way of Manifest files that list the hash of each file in a directory. The top-level Manifest is signed by the infrastructure team, so following and verifying the chain of hashes down to a particular file (while also making sure there are no unlisted files) ensures that the right files are present in the tree.

  • Here’s How Hackers Are Using Google’s Servers To Host Malware For Free
  • Pirates Punish Denuvo-Protected Games With Poor Ratings

    Denuvo's anti-piracy technology is a thorn in the side of game pirates. While it has been defeated on several occasions recently, the strict anti-piracy measures have not been without consequence. According to new research, Denuvo has frustrated pirates to a point where they sabotage reviews on Metacritic, leading to significantly lower ratings for protected games.

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

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  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
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