#sysadmin — Public Fediverse posts

2.5 Admins 299: RMAggravation

People trying to return defective hard drives and RAM are finding out why consumer protection laws would be good, GoDaddy accidentally gave someone’s domain name away, and when and how to fix ZFS fragmentation.

https://2.5admins.com/2-5-admins-299/

#podcast #sysadmin

I'm on-call all week. Got paged this afternoon. I went back to my home office and started checking. Processed the problem.

In less than a minute, my wife is at the door, and she told me: I can hear from the music (you chose), that this incident will take a lot of time...

Me, realising, I changed from my mindfulness, calming fantasy music playlist to hardcore techno/dubstep once I read the ticket. 🙈

#Sysadmin #IT #oncall #incident

I'm on-call all week. Got paged this afternoon. I went back to my home office and started checking. Processed the problem.

In less than a minute, my wife is at the door, and she told me: I can hear from the music (you chose), that this incident will take a lot of time...

Me, realising, I changed from my mindfulness, calming fantasy music playlist to hardcore techno/dubstep once I read the ticket. 🙈

#Sysadmin #IT #oncall #incident

I’m fine-tuning the cooling system for the USBridge-KVM 2.0 (which transmits BIOS data in text format via SSH). Under heavy load (2K video streaming), the temperature rose to 70 °C, which wasn’t acceptable to me.

I replaced the axial fan with a turbine fan for side-exhaust cooling.
I soldered a 2-millimeter copper spacer directly to the heatsink to reduce the gap to the chip.

Stable temperature of 50°C under load. It’s incredibly satisfying to see the improvement thanks to the hardware modification.

#DIY #Hardware #sysadmin #KVM #Engineering #Homelab #SelfHosted

I’m fine-tuning the cooling system for the USBridge-KVM 2.0 (which transmits BIOS data in text format via SSH). Under heavy load (2K video streaming), the temperature rose to 70 °C, which wasn’t acceptable to me.

I replaced the axial fan with a turbine fan for side-exhaust cooling.
I soldered a 2-millimeter copper spacer directly to the heatsink to reduce the gap to the chip.

Stable temperature of 50°C under load. It’s incredibly satisfying to see the improvement thanks to the hardware modification.

#DIY #Hardware #sysadmin #KVM #Engineering #Homelab #SelfHosted

I’m fine-tuning the cooling system for the USBridge-KVM 2.0 (which transmits BIOS data in text format via SSH). Under heavy load (2K video streaming), the temperature rose to 70 °C, which wasn’t acceptable to me.

I replaced the axial fan with a turbine fan for side-exhaust cooling.
I soldered a 2-millimeter copper spacer directly to the heatsink to reduce the gap to the chip.

Stable temperature of 50°C under load. It’s incredibly satisfying to see the improvement thanks to the hardware modification.

#DIY #Hardware #sysadmin #KVM #Engineering #Homelab #SelfHosted

I’m fine-tuning the cooling system for the USBridge-KVM 2.0 (which transmits BIOS data in text format via SSH). Under heavy load (2K video streaming), the temperature rose to 70 °C, which wasn’t acceptable to me.

I replaced the axial fan with a turbine fan for side-exhaust cooling.
I soldered a 2-millimeter copper spacer directly to the heatsink to reduce the gap to the chip.

Stable temperature of 50°C under load. It’s incredibly satisfying to see the improvement thanks to the hardware modification.

#DIY #Hardware #sysadmin #KVM #Engineering #Homelab #SelfHosted

I’m fine-tuning the cooling system for the USBridge-KVM 2.0 (which transmits BIOS data in text format via SSH). Under heavy load (2K video streaming), the temperature rose to 70 °C, which wasn’t acceptable to me.

I replaced the axial fan with a turbine fan for side-exhaust cooling.
I soldered a 2-millimeter copper spacer directly to the heatsink to reduce the gap to the chip.

Stable temperature of 50°C under load. It’s incredibly satisfying to see the improvement thanks to the hardware modification.

#DIY #Hardware #sysadmin #KVM #Engineering #Homelab #SelfHosted

nui-sftp, client SSH e SFTP open source con sincronizzazione cartelle, shell integrate e interfaccia desktop moderna #opensource #linux #ssh #sftp #cpp #desktopapp #sysadmin #filetransfer #software

https://www.linuxeasy.org/nui-sftp-ssh-singola-interfaccia-desktop-moderna/?utm_source=mastodon&utm_medium=jetpack_social

nui-sftp, client SSH e SFTP open source con sincronizzazione cartelle, shell integrate e interfaccia desktop moderna #opensource #linux #ssh #sftp #cpp #desktopapp #sysadmin #filetransfer #software

https://www.linuxeasy.org/nui-sftp-ssh-singola-interfaccia-desktop-moderna/?utm_source=mastodon&utm_medium=jetpack_social

nui-sftp, client SSH e SFTP open source con sincronizzazione cartelle, shell integrate e interfaccia desktop moderna #opensource #linux #ssh #sftp #cpp #desktopapp #sysadmin #filetransfer #software

https://www.linuxeasy.org/nui-sftp-ssh-singola-interfaccia-desktop-moderna/?utm_source=mastodon&utm_medium=jetpack_social

nui-sftp, client SSH e SFTP open source con sincronizzazione cartelle, shell integrate e interfaccia desktop moderna #opensource #linux #ssh #sftp #cpp #desktopapp #sysadmin #filetransfer #software

https://www.linuxeasy.org/nui-sftp-ssh-singola-interfaccia-desktop-moderna/?utm_source=mastodon&utm_medium=jetpack_social

nui-sftp, client SSH e SFTP open source con sincronizzazione cartelle, shell integrate e interfaccia desktop moderna #opensource #linux #ssh #sftp #cpp #desktopapp #sysadmin #filetransfer #software

https://www.linuxeasy.org/nui-sftp-ssh-singola-interfaccia-desktop-moderna/?utm_source=mastodon&utm_medium=jetpack_social

Fedora presenta 🐦 #Hummingbird! Una nova proposta d'imatges de contenidor #distroless. 📦

L'objectiu és oferir entorns minimalistes, molt més segurs i lleugers, eliminant components innecessaris com shells o gestors de paquets. 🛡️⚡ Una gran notícia per a l'ecosistema #CloudNative i la seguretat en #Linux.

Tota la info aquí: https://www.muylinux.com/2026/05/13/fedora-hummingbird-distroless/

#Fedora #Containers #Security #OpenSource #TechNews #SysAdmin

Fedora presenta 🐦 #Hummingbird! Una nova proposta d'imatges de contenidor #distroless. 📦

L'objectiu és oferir entorns minimalistes, molt més segurs i lleugers, eliminant components innecessaris com shells o gestors de paquets. 🛡️⚡ Una gran notícia per a l'ecosistema #CloudNative i la seguretat en #Linux.

Tota la info aquí: https://www.muylinux.com/2026/05/13/fedora-hummingbird-distroless/

#Fedora #Containers #Security #OpenSource #TechNews #SysAdmin

Fedora presenta 🐦 #Hummingbird! Una nova proposta d'imatges de contenidor #distroless. 📦

L'objectiu és oferir entorns minimalistes, molt més segurs i lleugers, eliminant components innecessaris com shells o gestors de paquets. 🛡️⚡ Una gran notícia per a l'ecosistema #CloudNative i la seguretat en #Linux.

Tota la info aquí: https://www.muylinux.com/2026/05/13/fedora-hummingbird-distroless/

#Fedora #Containers #Security #OpenSource #TechNews #SysAdmin

Fedora presenta 🐦 #Hummingbird! Una nova proposta d'imatges de contenidor #distroless. 📦

L'objectiu és oferir entorns minimalistes, molt més segurs i lleugers, eliminant components innecessaris com shells o gestors de paquets. 🛡️⚡ Una gran notícia per a l'ecosistema #CloudNative i la seguretat en #Linux.

Tota la info aquí: https://www.muylinux.com/2026/05/13/fedora-hummingbird-distroless/

#Fedora #Containers #Security #OpenSource #TechNews #SysAdmin

Fedora presenta 🐦 #Hummingbird! Una nova proposta d'imatges de contenidor #distroless. 📦

L'objectiu és oferir entorns minimalistes, molt més segurs i lleugers, eliminant components innecessaris com shells o gestors de paquets. 🛡️⚡ Una gran notícia per a l'ecosistema #CloudNative i la seguretat en #Linux.

Tota la info aquí: https://www.muylinux.com/2026/05/13/fedora-hummingbird-distroless/

#Fedora #Containers #Security #OpenSource #TechNews #SysAdmin

The difference between 99.9% and 99.99% uptime isn't just a decimal—it’s nearly 9 HOURS of annual downtime vs just 52 MINUTES.

Don't fall for the cloud "SLA Credit" scam, where providers refund $50 while you lose $25,000 during a shared hypervisor outage.

Our iRexta SRE guide covers:

✅ Error Budget math
✅ Defeating the Bathtub Curve
✅ RTO/RPO metrics
✅ Security as Uptime

🔗 https://www.irexta.com/blogs/what-99-9-vs-99-99-uptime-really-means/

#SRE #SysAdmin #DevOps #iRexta #BareMetal #HighAvailability

Visit https://aberia.site/ | Would you recommend Linux to a beginner? #Debian #Linux #Gaming #PC #Tech #Linuxlove #Opensource #LinuxGaming #GNU #TechTok #Reels #LinuxTiktok #ForYou #FYP #fyp #Debian13 #Gnome #KDEPlasma #XFCE #LinuxSetup #DesktopSetup #GamingOnLinux #LearnLinux #Educational #DebianTIps #SysAdmin #FOSS #LinuxAtWork #BeginnerLinux #LinuxTips #InstaReels #InstagramReels #Australia #Melbourne #Victoria #Shop

Visit https://aberia.site/ | Would you recommend Linux to a beginner? #Debian #Linux #Gaming #PC #Tech #Linuxlove #Opensource #LinuxGaming #GNU #TechTok #Reels #LinuxTiktok #ForYou #FYP #fyp #Debian13 #Gnome #KDEPlasma #XFCE #LinuxSetup #DesktopSetup #GamingOnLinux #LearnLinux #Educational #DebianTIps #SysAdmin #FOSS #LinuxAtWork #BeginnerLinux #LinuxTips #InstaReels #InstagramReels #Australia #Melbourne #Victoria #Shop

Visit https://aberia.site/ | Would you recommend Linux to a beginner? #Debian #Linux #Gaming #PC #Tech #Linuxlove #Opensource #LinuxGaming #GNU #TechTok #Reels #LinuxTiktok #ForYou #FYP #fyp #Debian13 #Gnome #KDEPlasma #XFCE #LinuxSetup #DesktopSetup #GamingOnLinux #LearnLinux #Educational #DebianTIps #SysAdmin #FOSS #LinuxAtWork #BeginnerLinux #LinuxTips #InstaReels #InstagramReels #Australia #Melbourne #Victoria #Shop

Visit https://aberia.site/ | Would you recommend Linux to a beginner? #Debian #Linux #Gaming #PC #Tech #Linuxlove #Opensource #LinuxGaming #GNU #TechTok #Reels #LinuxTiktok #ForYou #FYP #fyp #Debian13 #Gnome #KDEPlasma #XFCE #LinuxSetup #DesktopSetup #GamingOnLinux #LearnLinux #Educational #DebianTIps #SysAdmin #FOSS #LinuxAtWork #BeginnerLinux #LinuxTips #InstaReels #InstagramReels #Australia #Melbourne #Victoria #Shop

Visit https://aberia.site/ | Would you recommend Linux to a beginner? #Debian #Linux #Gaming #PC #Tech #Linuxlove #Opensource #LinuxGaming #GNU #TechTok #Reels #LinuxTiktok #ForYou #FYP #fyp #Debian13 #Gnome #KDEPlasma #XFCE #LinuxSetup #DesktopSetup #GamingOnLinux #LearnLinux #Educational #DebianTIps #SysAdmin #FOSS #LinuxAtWork #BeginnerLinux #LinuxTips #InstaReels #InstagramReels #Australia #Melbourne #Victoria #Shop

Fedora Hummingbird debuts as a rolling-release Linux OS shipped entirely as a bootable OCI image with atomic updates and rollback support. 🐦
It uses a hardened pipeline tracking Fedora Rawhide, provides per-package CVE monitoring, and targets developers and cloud-native workloads. 🔒

🔗 https://itsfoss.com/news/fedora-hummingbird-images/

#TechNews #Fedora #Linux #FedoraHummingbird #Hummingbird #OCI #OS #FOSS #Security #CVE #Atomic #Cloud #DeveloperTools #OpenSource #SysAdmin #DevOps

Fedora Hummingbird debuts as a rolling-release Linux OS shipped entirely as a bootable OCI image with atomic updates and rollback support. 🐦
It uses a hardened pipeline tracking Fedora Rawhide, provides per-package CVE monitoring, and targets developers and cloud-native workloads. 🔒

🔗 https://itsfoss.com/news/fedora-hummingbird-images/

#TechNews #Fedora #Linux #FedoraHummingbird #Hummingbird #OCI #OS #FOSS #Security #CVE #Atomic #Cloud #DeveloperTools #OpenSource #SysAdmin #DevOps

Fedora Hummingbird debuts as a rolling-release Linux OS shipped entirely as a bootable OCI image with atomic updates and rollback support. 🐦
It uses a hardened pipeline tracking Fedora Rawhide, provides per-package CVE monitoring, and targets developers and cloud-native workloads. 🔒

🔗 https://itsfoss.com/news/fedora-hummingbird-images/

#TechNews #Fedora #Linux #FedoraHummingbird #Hummingbird #OCI #OS #FOSS #Security #CVE #Atomic #Cloud #DeveloperTools #OpenSource #SysAdmin #DevOps

Fedora Hummingbird debuts as a rolling-release Linux OS shipped entirely as a bootable OCI image with atomic updates and rollback support. 🐦
It uses a hardened pipeline tracking Fedora Rawhide, provides per-package CVE monitoring, and targets developers and cloud-native workloads. 🔒

🔗 https://itsfoss.com/news/fedora-hummingbird-images/

#TechNews #Fedora #Linux #FedoraHummingbird #Hummingbird #OCI #OS #FOSS #Security #CVE #Atomic #Cloud #DeveloperTools #OpenSource #SysAdmin #DevOps

Fedora Hummingbird debuts as a rolling-release Linux OS shipped entirely as a bootable OCI image with atomic updates and rollback support. 🐦
It uses a hardened pipeline tracking Fedora Rawhide, provides per-package CVE monitoring, and targets developers and cloud-native workloads. 🔒

🔗 https://itsfoss.com/news/fedora-hummingbird-images/

#TechNews #Fedora #Linux #FedoraHummingbird #Hummingbird #OCI #OS #FOSS #Security #CVE #Atomic #Cloud #DeveloperTools #OpenSource #SysAdmin #DevOps

sed -e s/laptop/cat/

#Chamedi
#caturday
#CatsOfMastodon
#sysadmin

Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧

🔗 https://www.theregister.com/oses/2026/05/11/linux-kernel-maintainers-pitch-emergency-killswitch-after-copyfail-and-dirty-frag-chaos/5237801

#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag

Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧

🔗 https://www.theregister.com/oses/2026/05/11/linux-kernel-maintainers-pitch-emergency-killswitch-after-copyfail-and-dirty-frag-chaos/5237801

#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag

Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧

🔗 https://www.theregister.com/oses/2026/05/11/linux-kernel-maintainers-pitch-emergency-killswitch-after-copyfail-and-dirty-frag-chaos/5237801

#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag

Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧

🔗 https://www.theregister.com/oses/2026/05/11/linux-kernel-maintainers-pitch-emergency-killswitch-after-copyfail-and-dirty-frag-chaos/5237801

#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag

Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧

🔗 https://www.theregister.com/oses/2026/05/11/linux-kernel-maintainers-pitch-emergency-killswitch-after-copyfail-and-dirty-frag-chaos/5237801

#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag

A Linuxban az a jó, hogy amikor már azt hiszed, végre minden működik… akkor kiderül, hogy csak eddig nem nézted a logokat.

De pont ez benne a szép. Nem egy fekete doboz, hanem egy rendszer, amit tényleg meg lehet érteni. Néha szívás, néha káromkodás, néha hajnali „na most már működj légyszi”, de amikor végül összeáll, az érzés verhetetlen.

És valahol ezért nehéz elszakadni tőle. Mert nem csak használod - hanem lassan kiismered. Aztán egyszer azon kapod magad, hogy már magadtól javítasz meg olyan dolgokat, amiktől pár éve még csak néztél volna üveges szemekkel.

#Linux #OpenSource #SelfHosting #Homelab #FedoraLinux #RockyLinux #Docker #SysAdmin #TechLife #LinuxCommunity #geek #geeklife #magyar #hungarian

A Linuxban az a jó, hogy amikor már azt hiszed, végre minden működik… akkor kiderül, hogy csak eddig nem nézted a logokat.

De pont ez benne a szép. Nem egy fekete doboz, hanem egy rendszer, amit tényleg meg lehet érteni. Néha szívás, néha káromkodás, néha hajnali „na most már működj légyszi”, de amikor végül összeáll, az érzés verhetetlen.

És valahol ezért nehéz elszakadni tőle. Mert nem csak használod - hanem lassan kiismered. Aztán egyszer azon kapod magad, hogy már magadtól javítasz meg olyan dolgokat, amiktől pár éve még csak néztél volna üveges szemekkel.

#Linux #OpenSource #SelfHosting #Homelab #FedoraLinux #RockyLinux #Docker #SysAdmin #TechLife #LinuxCommunity #geek #geeklife #magyar #hungarian

A Linuxban az a jó, hogy amikor már azt hiszed, végre minden működik… akkor kiderül, hogy csak eddig nem nézted a logokat.

De pont ez benne a szép. Nem egy fekete doboz, hanem egy rendszer, amit tényleg meg lehet érteni. Néha szívás, néha káromkodás, néha hajnali „na most már működj légyszi”, de amikor végül összeáll, az érzés verhetetlen.

És valahol ezért nehéz elszakadni tőle. Mert nem csak használod - hanem lassan kiismered. Aztán egyszer azon kapod magad, hogy már magadtól javítasz meg olyan dolgokat, amiktől pár éve még csak néztél volna üveges szemekkel.

#Linux #OpenSource #SelfHosting #Homelab #FedoraLinux #RockyLinux #Docker #SysAdmin #TechLife #LinuxCommunity #geek #geeklife #magyar #hungarian

A Linuxban az a jó, hogy amikor már azt hiszed, végre minden működik… akkor kiderül, hogy csak eddig nem nézted a logokat.

De pont ez benne a szép. Nem egy fekete doboz, hanem egy rendszer, amit tényleg meg lehet érteni. Néha szívás, néha káromkodás, néha hajnali „na most már működj légyszi”, de amikor végül összeáll, az érzés verhetetlen.

És valahol ezért nehéz elszakadni tőle. Mert nem csak használod - hanem lassan kiismered. Aztán egyszer azon kapod magad, hogy már magadtól javítasz meg olyan dolgokat, amiktől pár éve még csak néztél volna üveges szemekkel.

#Linux #OpenSource #SelfHosting #Homelab #FedoraLinux #RockyLinux #Docker #SysAdmin #TechLife #LinuxCommunity #geek #geeklife #magyar #hungarian

A Linuxban az a jó, hogy amikor már azt hiszed, végre minden működik… akkor kiderül, hogy csak eddig nem nézted a logokat.

De pont ez benne a szép. Nem egy fekete doboz, hanem egy rendszer, amit tényleg meg lehet érteni. Néha szívás, néha káromkodás, néha hajnali „na most már működj légyszi”, de amikor végül összeáll, az érzés verhetetlen.

És valahol ezért nehéz elszakadni tőle. Mert nem csak használod - hanem lassan kiismered. Aztán egyszer azon kapod magad, hogy már magadtól javítasz meg olyan dolgokat, amiktől pár éve még csak néztél volna üveges szemekkel.

#Linux #OpenSource #SelfHosting #Homelab #FedoraLinux #RockyLinux #Docker #SysAdmin #TechLife #LinuxCommunity #geek #geeklife #magyar #hungarian

3 Uhr morgens, ich starre auf ein Bash-Script, das gestern noch funktioniert hat. Nichts wurde geändert. Niemand hat es angefasst. Es funktioniert einfach nicht mehr.

Das ist der Moment, in dem man versteht, warum frühe Informatiker an Geister geglaubt haben. 👻

`set -x` ist mein Beichtvater geworden.

#Linux #Bash #ItWorksOnMyMachine #OpenSource #Sysadmin

Spent 14 hours on my feet having conversations with #RedHat customers today. Back to my hotel, and glad to be off my feet. Sure is a nice view from my room though. #rhsummit #rhel #sysadmin

Spent 14 hours on my feet having conversations with #RedHat customers today. Back to my hotel, and glad to be off my feet. Sure is a nice view from my room though. #rhsummit #rhel #sysadmin

Spent 14 hours on my feet having conversations with #RedHat customers today. Back to my hotel, and glad to be off my feet. Sure is a nice view from my room though. #rhsummit #rhel #sysadmin

Spent 14 hours on my feet having conversations with #RedHat customers today. Back to my hotel, and glad to be off my feet. Sure is a nice view from my room though. #rhsummit #rhel #sysadmin