SadServers
@sadservers.com
SadServers.com - Practical Linux & DevOps Troubleshooting
Can you troubleshoot Traefik proxy issues? New SadServers scenario “San Juan” sadservers.com/scenario/san...
SadServers: "San Juan": mucho Traefik - traefik, docker Troubleshooting Lab
Linux Troubleshooting Labs Interview DevOps SRE
sadservers.com
February 15, 2026 at 4:21 PM
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...
SadServers Newsletter #17: new scenarios
list.sadservers.com
February 3, 2026 at 4:25 PM
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.
January 28, 2026 at 9:50 PM
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.
-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.
January 22, 2026 at 10:45 PM
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.
-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.
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.
January 2, 2026 at 9:36 PM
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 😉
December 24, 2025 at 6:34 PM
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...
2025 Year in Review
We are wrapping up the third year of SadServers, this 2025 has been our best one yet and I wanted to recap some of the things that happened.
The number of Linux and DevOps scenarios almost doubled, t...
docs.sadservers.com
December 22, 2025 at 11:36 PM
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 😀🚀
A few bugs caught and improved performance so far; got rid of our two most expensive queries for example 😀🚀
December 19, 2025 at 12:46 AM
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 😀🚀
A few bugs caught and improved performance so far; got rid of our two most expensive queries for example 😀🚀
Given the participation and the feedback, seems like the SadServers #AdventOfSysadmin was a huge success! 😀
love.sadservers.com/t/b3d1886b-4...
love.sadservers.com/t/b3d1886b-4...
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love.sadservers.com
December 15, 2025 at 11:49 PM
Given the participation and the feedback, seems like the SadServers #AdventOfSysadmin was a huge success! 😀
love.sadservers.com/t/b3d1886b-4...
love.sadservers.com/t/b3d1886b-4...
A modular monolith tends to be a good option www.twilio.com/en-us/blog/d...
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!
www.twilio.com
December 14, 2025 at 5:30 PM
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 🫤
December 12, 2025 at 4:27 PM
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.
Then we’ll start adding clues & solutions to the 11 new Advent challenges.
December 12, 2025 at 3:19 PM
Last day of #AdventOfSysadmin , culminating with a hard but fun scenario.
Then we’ll start adding clues & solutions to the 11 new Advent challenges.
Then we’ll start adding clues & solutions to the 11 new Advent challenges.
Reposted by SadServers
SadServers is my new playground 🙃
sadservers.com
sadservers.com
SadServers - Linux & DevOps Troubleshooting Interviews
Linux Troubleshooting Interview DevOps SRE
sadservers.com
December 7, 2025 at 12:40 PM
SadServers is my new playground 🙃
sadservers.com
sadservers.com
Reposted by SadServers
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
Advent of DevOps / SysAdmin: sadservers.com/advent
#ML #AI
December 9, 2025 at 6:04 PM
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
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...
SadServers - Linux & DevOps Troubleshooting Interviews
Linux Troubleshooting Interview DevOps SRE
sadservers.com
December 9, 2025 at 11:41 PM
#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 😀
December 7, 2025 at 3:30 AM
New “hack” scenario dropping soon (medium-hard) for Sunday 😀
For Saturday, since it's the weekend, let's have an easy SadServers scenario (still pretty common JSON manipulation from AWS cli) #AdventOfSysadmin
December 6, 2025 at 4:04 AM
For Saturday, since it's the weekend, let's have an easy SadServers scenario (still pretty common JSON manipulation from AWS cli) #AdventOfSysadmin
It could have a better description but at least Claude knows about SadServers without looking it up. Take note ChatGPT 😄
December 6, 2025 at 3:16 AM
It could have a better description but at least Claude knows about SadServers without looking it up. Take note ChatGPT 😄
#AdventOfSysadmin Not 1, not 2, we have 5 new SadServers scenarios this week (so far), one per day! sadservers.com/advent 💪🚀🐧
SadServers - Linux & DevOps Troubleshooting Interviews
Linux Troubleshooting Interview DevOps SRE
sadservers.com
December 5, 2025 at 1:49 PM
#AdventOfSysadmin Not 1, not 2, we have 5 new SadServers scenarios this week (so far), one per day! sadservers.com/advent 💪🚀🐧
Hey AI, am I the lighthouse or the ship? 😅 do androids dream of electric sheep?
December 4, 2025 at 2:19 AM
Hey AI, am I the lighthouse or the ship? 😅 do androids dream of electric sheep?
Massive #AdventOfSysadmin traffic & no incidents,managed with:
❌No CDN/Cloudflare
❌No LB or autoscaling
❌No caching
❌No fast code (Python)
❌No big server
But:
✅good architecture
✅rate limits at multiple levels
✅ bkgrnd dependencies with timeouts
✅static page 😅
❌No CDN/Cloudflare
❌No LB or autoscaling
❌No caching
❌No fast code (Python)
❌No big server
But:
✅good architecture
✅rate limits at multiple levels
✅ bkgrnd dependencies with timeouts
✅static page 😅
December 3, 2025 at 3:54 PM
Massive #AdventOfSysadmin traffic & no incidents,managed with:
❌No CDN/Cloudflare
❌No LB or autoscaling
❌No caching
❌No fast code (Python)
❌No big server
But:
✅good architecture
✅rate limits at multiple levels
✅ bkgrnd dependencies with timeouts
✅static page 😅
❌No CDN/Cloudflare
❌No LB or autoscaling
❌No caching
❌No fast code (Python)
❌No big server
But:
✅good architecture
✅rate limits at multiple levels
✅ bkgrnd dependencies with timeouts
✅static page 😅
See 6,000 sad servers served 🚀 😀
First day of #AdventOfSysadmin
First day of #AdventOfSysadmin
December 2, 2025 at 11:50 PM
See 6,000 sad servers served 🚀 😀
First day of #AdventOfSysadmin
First day of #AdventOfSysadmin
Oh no again on HN's front page 😬
December 1, 2025 at 4:34 PM
Oh no again on HN's front page 😬