2.5 Admins 284: BooTooth
Why you might not want your Windows encryption keys to be backed up to Microsoft, some Bluetooth devices are vulnerable to snooping and tracking, a lesson in the need for backups, and the best practices and stack for setting up a mail server.
System Administration, Week 1: UNIX History
We're borrowing this video from our "Advanced Programming in the UNIX Environment" class to give a brief summary of the history of the UNIX family of operating systems.
Day 20 - Scripting (part 2)
https://linuxupskillchallenge.org/20/
#linux #sysadmin
Day 20 - Scripting (part 1)
https://linuxupskillchallenge.org/20/
#linux #sysadmin
🔴 Cập nhật: Vấn đề xác thực SSH qua Putty: Người dùng gặp lỗi "từ chối khóa" dù đã tạo cặp khóa, thiết lập authorized_keys và chỉnh quyền. Phát hiện khóa công khai "dởm" trong thư mục .ssh, nghi ngờ bị xâm nhập? Đã xóa và dự kiến vô hiệu hóa đăng nhập bằng mật khẩu. #SSH #Putty #LinhHoat #Linux #AnToanMang #sysadmin #LinuxVietNam
https://www.reddit.com/r/selfhosted/comments/1qqkvqq/refuses_my_ssh_key_putty/
I really like Veeam''s Backup solution especially on Linux because of the image based backups even with ext4. What I don't like ist the limited scheduling options. For that purpose I used some bash scripting and some SystemD units to help me out. I wrote a blog post about my process and at the end you can find a link to my git for the files.
https://cperrin.xyz/en/2026/01/28/triggering-veeam-backups-on-linux-with-systemd/
I've personally grown to hate the security theatre of rotating my bank passwords every six months, especially because of requirements like "must contain one uppercase, one symbol, one lowercase, one special case and the blood of a unicorn."
When mathematically, a simple, grammatically incorrect sentence of 25 characters is much harder for a machine to crack than a gibberish 8-character password with symbols.
Entropy loves length.
I love the idea that the most secure key to your digital life could just be a weird little poem or an inside joke that only you know. Security doesn't have to be painful.
#infosec #passwords #cybersecurity #UX #security #sysadmin #programming #foss #linux #privacy #enshittification #reading #finance
🔍 Tech Tip Thursday
If you inherit a server, do this first:
- List running services
- Identify owners (or admit there aren’t any)
- Document before touching anything
Future you will be grateful.
Cluster MinIO S3 : Migration NFS vers une Architecture Hot/Warm
https://uh.live/fr/2026/01/29/migration-nfs-cluster-minio-s3-hot-warm/
#sysadmin #architecture
Ich mag die Backup Lösung von Veeam sehr. Vor allem unter Linux kann man damit leicht Image-Basierte Backups machen selbst mit ext4. Leider ist das Scheduling gerade unter Linux nicht gut. Deshalb habe ich eine Lösung mit SystemD gebaut. Ich habe einen Blogeintrag geschrieben der beschreibt wie das ging. Am ende vom Betrag findet ihr auch direkt einen Link zum Code.
https://cperrin.xyz/2026/01/28/veeam-backups-unter-linux-mit-systemd-triggern/
RE: https://mastodon.social/@atareao/115977565155173366
Jo he començat a fer servir els #Quadlets al meu servidor amb la integració de #Systemd i em sembla una completa passada! 🔥 Adeu a les configuracions complicades per gestionar contenidors. 🚀
No us perdeu aquest article de @atareao
🎥 Novo vídeo no canal!
Windows LAPS + Windows Admin Center =
Mais segurança, mais controle e menos dor de cabeça 🔐
Gerencie senhas locais direto pela interface web 🚀
#WindowsLAPS #WindowsAdminCenter #ITPro #SysAdmin #Microsoft #EndpointSecurity #MVPBuzz
Instant DevOps Labs: Hands-On & Free! 🚀
Get 15 minutes of real Linux environment practice with genuine scenarios.
No signup. No email. No credit card required.
🚀 Rilasciata SysLinuxOS 13.1
Distro Debian‑based pensata per system integrators con focus su stabilità e coerenza tra MATE e GNOME.
Miglioramenti:
- Fix UEFI e miglioramenti al boot
- Pulizia dipendenze e ottimizzazione build ISO (live‑build)
- Aggiornamento completo dei Conky (system & network monitoring)
- Integrazione Sparrow‑Wifi per analisi wireless
- Calamares personalizzato e più stabile
Tonight the waves of bot traffic hitting many of the servers I manage have intensified, including Brew on BSD Cafe, but not only that. Honestly, the feeling I have now is no longer the same as it was some time ago (AI scrapers), but that there are real disruption operations going on. I can see it’s much more concentrated around certain providers and certain datacenters. If I block some countries like China, the numbers drop dramatically.
I still haven’t figured out whether there’s something specific and targeted happening (a broad DDoS) or if they’re still scrapers, but they honestly seem really dumb.
Maybe we should just create an alternative network and leave the Internet to these entities.
At this point they’re just talking to themselves anyway.
Securing Apache is critical for any production Linux server.
This guide covers iptables firewall rules, blocking unauthorized access, and protecting custom Apache ports as part of a complete Linux hardening strategy.
#Linux #Apache #HTTP #iptables #ServerHardening #DevOps #SysAdmin #CyberSecurity #aws #tech
My pitch for next version of the paas my team owned at previous job was migrating to cross plane / byoc+cluster api.
It was shot down as too ambitious and I let that idea die.
I am curious if folks are still using #crossplane or just #clusterAPI to manage the lifecycle of workload clusters.
Day 19 - Inodes, symlinks and alias (part 2)
https://linuxupskillchallenge.org/19/
#linux #sysadmin
Day 19 - Inodes, symlinks and alias (part 1)
https://linuxupskillchallenge.org/19/
#linux #sysadmin
