We made a little video :-)

SadServers has crossed the 100 hands-on scenarios mark!
And the next two are really special 😀

New easy-medium SadServers scenario "Valladolid", another systemd challenge. How fast can you solve it?
sadservers.com/scenario/val...

New medium-hard "hack" SadServers scenario "Madrid"; exploit Linux capabilities vulnerability.

(I didn't know about this, you always learn something new 😀 )

sadservers.com/scenario/mad...

New SadServers "hack" scenario Amsterdam, can you hijack a cron job to read a secret file? sadservers.com/scenario/ams...

5xx errors are very rare for us but it's still a nice feature to be able to have crash reports from users thanks to an easy @sentry.io integration 😀

Amazon AI tool is breaking too much in AWS, funny I kind of wrote about this two days ago x.com/lukolejnik/s...

docs.sadservers.com/blog/complet...

Now SadServers Business users can:
- customize scenario times in their interviews
- disable Clues/Solution for the candidates
- disable the countdown timer
- get an alert when the candidate starts a scenario (useful for those using async interviews).

Need to learn how to do this SEO thingy... 😅

One of the projects we are working on...

Some people say software is solved because of AI but a multi-billion company chat bot hallucinates about options in their product dashboard...

New: our first #MongoDB troubleshooting scenario involving replication: sadservers.com/scenario/suz...
How long it will take you to fix it?

Deployed:
- Solutions page for individuals
- Solutions page for businesses
- Scenario search box

As usual please DM/email any feedback, thanks!

Can you troubleshoot Traefik proxy issues? New SadServers scenario “San Juan” sadservers.com/scenario/san...

The latest SadServers newsletter went out today, showing the new scenarios since the previous one and some comments about them: list.sadservers.com/archive/4cfd...

The popularity of the “Saskatoon” scenario results in many incorrect user solutions, often because they are missing a "sort" but also perhaps because the solution file was considered "wrong" without an ending newline. Fixed the latter and added a verification tip.

Scheduled this weekend: new SadServers prices & offerings.
-Current Pro users keep their low price & all features.
-New Pro+ plan will get new features.
Responding to users' feedback:
-Introducing a new Business Pay-Per-Use plan.
-All subscriptions get bigger yearly discounts.

LinkedIn feedback 🙂

The beginning of the year and resolutions (for example, learning something new) is a good reminder that we humans tend to overestimate what we can do short term and underestimate what we can do long term.

For AWS in North America, you want to be in the Ohio region 😉

SadServers 2025 year in review (spoiler: it was very good) docs.sadservers.com/blog/2025-ye...

Usually we don't like to spend time on things that don't have a direct positive impact on users but a good refactor of the backend code was long overdue.

A few bugs caught and improved performance so far; got rid of our two most expensive queries for example 😀🚀

Testimonial from Mr. X Turn your testimonials into your most powerful marketing tool with Senja.

Given the participation and the feedback, seems like the SadServers #AdventOfSysadmin was a huge success! 😀
love.sadservers.com/t/b3d1886b-4...

Goodbye Microservices Discover Twilio’s shift to a single powerful service! Learn cloud communication trends, customer success stories, and how to build scalable apps. Join now!

A modular monolith tends to be a good option www.twilio.com/en-us/blog/d...

Looks like we'll have to look into having a second active AWS region; the price of success and having so many ec2 instances created is that sometimes a few fail 🫤

Last day of #AdventOfSysadmin , culminating with a hard but fun scenario.

Then we’ll start adding clues & solutions to the 11 new Advent challenges.

SadServers is my new playground 🙃
sadservers.com

In production ML, the real outages usually come not from your models but from the Linux, Docker, and web infrastructure holding them up - this Christmas we can dive into the Advent of DevOps:

Advent of DevOps / SysAdmin: sadservers.com/advent

#ML #AI

#AdventOfSysAdmin it was about time SadServers had a Docker multi-stage optimization scenario 😀 sadservers.com/scenario/tor...

New “hack” scenario dropping soon (medium-hard) for Sunday 😀