Today while training some sysadmins I shared this real photo of ancient Greek engineers configuring a mailserver.

On the left the brave engineer is trying to stop unauthorised pipelining through the MTA while their knee is viciously attacked by a subtly broken DKIM key. Meanwhile, their co-sysadmin is hammering away at a perfectly good Postfix sender restrictions policy, screaming "It's not DNS!", while bitten by a PTR record quietly hissing "It'ssss DNSssss".

#sysadmin #selfhosted

"100W", today's MFA moved back to incandescent from LAD lightbulbs

It could be an allegory about how wasteful computing resources have become

Or maybe it's just 4 random characters

#GeekHumor #sysadmin #MFAshortStories

This Isn't a Battle

After reading a post describing the FreeBSD community as 'toxic', I share a different perspective. This isn't a battle. It's a reflection on coexistence, the original Open Source spirit, and the quiet richness of taking a different path.

https://my-notes.dragas.net/2025/11/14/this-isnt-a-battle/

#MyNotes #IT #SysAdmin #FreeBSD #NetBSD #OpenBSD #Linux #OpenSource

2.5 Admins 273: Reliability Tracking

Allan tells us about the recent OpenZFS Summit including inconsistent JBODs, more details about mixed disk sizes in ZFS with AnyRaid, an upcoming standard that allows you to keep using partially dead hard drives, Seagate’s roadmap for 50 and 100 TB drives, and NVMe connected mechanical drives. Plus using a separate mini PC for work.

https://2.5admins.com/2-5-admins-273/

#podcast #sysadmin

Being a #sysadmin of 26 years has taught me most certifications are a pure money making grift from corporations. Most tech workers who know their stuff don't need these. Nothing beats hands-on experience of technology.

2.5 Admins 273: Reliability Tracking

Allan tells us about the recent OpenZFS Summit including inconsistent JBODs, more details about mixed disk sizes in ZFS with AnyRaid, an upcoming standard that allows you to keep using partially dead hard drives, Seagate’s roadmap for 50 and 100 TB drives, and NVMe connected mechanical drives. Plus using a separate mini PC for work.

https://2.5admins.com/2-5-admins-273/

#podcast #sysadmin

Being a #sysadmin of 26 years has taught me most certifications are a pure money making grift from corporations. Most tech workers who know their stuff don't need these. Nothing beats hands-on experience of technology.

New blog post: FreeBSD Dual-Stack with Jails on Hetzner Cloud !

How to run VNET jails with proper IPv6 (no NAT66!) by splitting a /64 into two /65 subnets.

- Complete working configs
- IPv6-first philosophy
- Production-tested

https://blog.hofstede.it/freebsd-dual-stack-jails-on-hetzner-cloud/

#FreeBSD #IPv6 #Jails #Bastille #Hetzner #sysadmin

#Back ! C'est l'histoire d'une BOX #opérateur qui...claque. FIN. Elle a décidé de claquer Mercredi 3h30 du matin. Après une journée de taff, j'ai géré son remplacement avec #bouygues En 30 minutes c'était géré. Ils sont au TOP! Sauf que...l'opérateur s'est trompé d'adresse de rattachement et c'est donc toute la config d'une autre BOX qui s'est retrouvé restaurée sur ma box..... et là, c'est le drame 😁 Le temps de reconstruire à la main sur la box toutes les règles, UP ! #sysadmin #adminsys

New blog post: FreeBSD Dual-Stack with Jails on Hetzner Cloud !

How to run VNET jails with proper IPv6 (no NAT66!) by splitting a /64 into two /65 subnets.

- Complete working configs
- IPv6-first philosophy
- Production-tested

https://blog.hofstede.it/freebsd-dual-stack-jails-on-hetzner-cloud/

#FreeBSD #IPv6 #Jails #Bastille #Hetzner #sysadmin

What the most useful linux distro to learn how system,and kernel work and to learn terminal commands?
Warning, I said distro, meaning LFS does not count.
#linux #sysadmin #operatingsystem #archlinux #Gentoo #voidlinux

Thinking about migrating from Linux to the rock-solid security of FreeBSD? Our expert training is designed for you. Learn BSD fundamentals, command differences, and how to harness ZFS.

Start your journey with confidence!

https://bastillebsd.org/training/

#FreeBSD #Training #runBSD #SysAdmin #DevOps #BastilleBSD

Thinking about migrating from Linux to the rock-solid security of FreeBSD? Our expert training is designed for you. Learn BSD fundamentals, command differences, and how to harness ZFS.

Start your journey with confidence!

https://bastillebsd.org/training/

#FreeBSD #Training #runBSD #SysAdmin #DevOps #BastilleBSD

Today while training some sysadmins I shared this real photo of ancient Greek engineers configuring a mailserver.

On the left the brave engineer is trying to stop unauthorised pipelining through the MTA while their knee is viciously attacked by a subtly broken DKIM key. Meanwhile, their co-sysadmin is hammering away at a perfectly good Postfix sender restrictions policy, screaming "It's not DNS!", while bitten by a PTR record quietly hissing "It'ssss DNSssss".

#sysadmin #selfhosted