Let's Encrypt has halted issuing certificates due "to a potential incident".

https://letsencrypt.status.io/pages/incident/55957a99e800baa4470002da/69fe2d6698ca07050eb4b1b3

#sysadmin #LetsEncrypt #networking #security #selfhost #selfhosting

#BOFH Friday!

BOFH: Nothing says 'business continuity' like a dry wooden broom

https://www.theregister.com/bofh/2026/05/08/bofh-nothing-says-business-continuity-like-a-dry-wooden-broom/5235610

#SysAdmin

Linux Touch Command Explained with Real Examples

https://www.linuxteck.com/touch-command-in-linux-examples/

Learn practical usage for file creation, timestamp updates, shell scripting, cron jobs, Docker builds, CI/CD pipelines, and automation workflows.

#Linux #TouchCommand #Bash #DevOps #SysAdmin #LinuxAdmin

Es fühlt sich gerade sehr gut an, dass ich #docker und co nicht vertraue und lieber klassische VMs einsetze. Diese beiden Meldungen in Kombination klingen ziemlich kritisch...

https://www.golem.de/news/dirty-frag-weitere-root-luecke-gefaehrdet-unzaehlige-linux-systeme-2605-208467.html

https://www.heise.de/news/Apache-HTTP-Server-Hochriskante-Luecken-ermoeglichen-Einschleusen-von-Schadcode-11284090.html

#sysadmin

The “ugliest” OpenBSD ports are now operational. 🛡️

Providing bridge support for Facebook, Instagram, LinkedIn, and IRC on Synapse. Verified on -current.

A brilliant learning experience in package building; if you want to recruit these for the main ports, have at it!

https://gitlab.com/oneguynick/openbsd-ports/

#OpenBSD #Matrix #SelfHosted #SysAdmin

Friday check-in: what are you running on Rocky Linux?

Home lab? Production web stack? Something weird and experimental you're not sure how to describe? We want to hear about it.

Drop your setup in the comments. It's always fun to see how people are actually putting Rocky to work out in the world.

Happy Friday, everyone.
#RockyLinux #OpenSource #Linux #HomeLab #SysAdmin

Dirty Frag vient de sortir : une nouvelle faille Linux permettant une élévation locale de privilèges jusqu’à root via le page cache, xfrm/ESP et RxRPC.

J’ai écrit un article pour expliquer :
- ce que fait la faille
- pourquoi elle rappelle Dirty Pipe
- quoi vérifier sur ses serveurs
- quelles mitigations appliquer

https://cryptolab.re/posts/2026/dirty-frag-linux-lpe/

#Linux #Security #Kernel #CVE #SysAdmin

Ubuntu 26.04 LTS est sortie, mais côté serveur ce n’est pas une simple mise à jour “nouvelle LTS, nouveau noyau”.

J’ai écrit un article orienté admins/VPS/homelab : support, OpenSSH 10.2, Chrony, paquets serveur, sécurité, GPU/IA, cloud, Livepatch et stratégie de migration depuis 24.04 LTS.

À lire avant de lancer un `do-release-upgrade` un peu trop confiant :

https://cryptolab.re/posts/2026/ubuntu-26-04-lts-resolute-raccoon/

#Ubuntu #Linux #SysAdmin #Homelab #OpenSource #Server #UbuntuServer

Going to start doing Live Ops again! Live coding and troubleshooting sessions built around real SysAdmin tasks.

Before I spin up the next one I want to know: what are you actually struggling with in your home lab right now?

Drop it in the comments. The messier the better.
#Linux #Homelab #SysAdmin #OpenSource #LiveCoding