Weekly Digest – Week 14, 2021

Articles and News

A Ceph War Story

In this post, Michael Prokop does an in-depth post-mortem on the outage of a Proxmox hyper-converged Ceph cluster.

https://michael-prokop.at/blog/2021/04/09/a-ceph-war-story/

#ceph #proxmox #post-mortem #grml

Screw It, I’ll Host It Myself

https://www.markozivanovic.com/screw-it-ill-host-it-myself/

In this post, the author explains his self-hosting setup.

#self-hosting

FreeBSD/arm64 Becoming Tier 1 in FreeBSD 13

»FreeBSD will promote arm64 to a Tier 1 architecture in FreeBSD 13.«

https://lists.freebsd.org/pipermail/freebsd-announce/2021-April/002030.html

#freebsd #arm

Lenovo is Using AMD PSB to Vendor Lock AMD CPUs

Article on how with AMD PSB enabled, CPUs are locked to a vendor ecosystem.

https://www.servethehome.com/lenovo-is-using-amd-psb-to-vendor-lock-amd-cpus/

#lenovo #amd #hardware #vendor-lock #supply-chain-integrity #hardware-security #amd-epyc

How ZFS on Linux Brings Up Pools and Filesystems at Boot Under systemd

This post explains the three phases involved in starting ZFS on Linux.

https://utcc.utoronto.ca/%7Ecks/space/blog/linux/ZFSBringUpOnBoot

#zfs #filesystems

Announcing KDE’s Qt 5 Patch Collection

With the free support ending for Qt5, KDE is now maintaining security and functional fixes for it.

https://community.kde.org/Qt5PatchCollection

#kde #qt #qt5

Nobody Cares About the Operating System Anymore

Pointed comment by Corey Quinn on why the operating system does not matter that much anymore.

https://www.lastweekinaws.com/blog/nobody-cares-about-the-operating-system-anymore/

#operating-system #cloud

Microsoft Gets Two-Phase Immersion Cooling Running In an Azure Data Center

Article about Microsofts first production-environment deployment of two-phase liquid immersion cooling in a data center.

https://www.zdnet.com/article/microsoft-gets-two-phase-immersion-cooling-running-in-an-azure-data-center/

#microsoft #azure #datacenter-cooling #hardware #datacenter

BleedingTooth: Linux Bluetooth Zero-Click Remote Code Execution

»BleedingTooth is a set of zero-click vulnerabilities in the Linux Bluetooth subsystem that can allow an unauthenticated remote attacker in short distance to execute arbitrary code with kernel privileges on vulnerable devices.«

https://google.github.io/security-research/pocs/linux/bleedingtooth/writeup.html

#bluetooth #rce #security

Nix Is the Ultimate Devops Toolkit

Blog post on how Nix can help to solve DevOps problems.

https://tech.channable.com/posts/2021-04-09-nix-is-the-ultimate-devops-toolkit.html

#nix

Multi-Master Replication Solutions for PostgreSQL

Post by Percona about different multi-master replication solutions for Postgres.

https://www.percona.com/blog/2020/06/09/multi-master-replication-solutions-for-postgresql/

#postgres

Fail-fast Is Failing… Fast!

Interesting read about the shortcomings of using fail-fast for achieving fault tolerance in modern distributed systems.

https://queue.acm.org/detail.cfm?id=3458812

#distributed-systems #fail-fast

DNS Propagation Does Not Exist

This short post explains why, strictly speaking, the term DNS propagation is misused.

https://www.nslookup.io/blog/dns-propagation-does-not-exist/

#dns

Ancient Linux Servers: The Blighted Slum Houses of the Internet

Yes, running unsupported, unpatched servers on the Internet is a bad idea.

https://arstechnica.com/information-technology/2014/03/ancient-linux-servers-the-blighted-slum-houses-of-the-internet/

#linux #web-secuity #internet

Projects and Releases

OpenNebula 6.0

https://opennebula.io/opennebula-6-0-mutara-expanding-your-multi-cloud-to-the-edge/

#open-nebula

Argo CD 2.0

https://www.cncf.io/blog/2021/04/07/argo-cd-2-0-released/

#ci-cd

DebOps

»The DebOps project is a set of Free and Open Source tools that let users bootstrap and manage an IT infrastructure based on Debian or Ubuntu operating systems.«

https://docs.debops.org/en/master/

#debian #ansible #ubuntu