SadServers
@sadservers.com
SadServers.com - Practical Linux & DevOps Troubleshooting
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...
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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 😬
日本はサッドサーバーを愛し、サッドサーバーは日本を愛している 🇯🇵
December 1, 2025 at 1:24 PM
日本はサッドサーバーを愛し、サッドサーバーは日本を愛している 🇯🇵
Announcing scenarios exclusively for Business accounts (teams training or interviewing DevOps candidates) sadservers.com/tag/business
SadServers - Linux & DevOps Troubleshooting Interviews
Linux Troubleshooting Interview DevOps SRE
sadservers.com
November 27, 2025 at 5:42 PM
Announcing scenarios exclusively for Business accounts (teams training or interviewing DevOps candidates) sadservers.com/tag/business
Pretty cool Linux kernel code explorer reverser.dev/linux-kernel...
Linux Kernel Explorer | reverser.dev
Interactive Linux kernel source code browser with guided learning paths.
reverser.dev
November 27, 2025 at 3:34 PM
Pretty cool Linux kernel code explorer reverser.dev/linux-kernel...
SadServers uses ipinfo , an excellent tool.
Interview with its founder in the SaaS podcast at open.spotify.com/episode/50OD...
Interview with its founder in the SaaS podcast at open.spotify.com/episode/50OD...
November 26, 2025 at 3:46 AM
SadServers uses ipinfo , an excellent tool.
Interview with its founder in the SaaS podcast at open.spotify.com/episode/50OD...
Interview with its founder in the SaaS podcast at open.spotify.com/episode/50OD...
Over 300 NPM Packages and 27K+ Github Repos infected via Fake Bun Runtime Within Hours. A lot of people are not going to have a fun Monday. helixguard.ai/blog/malicio...
HelixGuard
Supply chain security, vulnerability intelligence, and malware detection.
helixguard.ai
November 24, 2025 at 5:27 PM
Over 300 NPM Packages and 27K+ Github Repos infected via Fake Bun Runtime Within Hours. A lot of people are not going to have a fun Monday. helixguard.ai/blog/malicio...
New SadServers challenge "Tunis", a Redis replication scenario, good for practicing redis client cli. sadservers.com/scenario/tunis
SadServers - Linux & DevOps Troubleshooting Interviews
Linux Troubleshooting Interview DevOps SRE
sadservers.com
November 24, 2025 at 4:24 PM
New SadServers challenge "Tunis", a Redis replication scenario, good for practicing redis client cli. sadservers.com/scenario/tunis
New SadServers scenario "Alexandria", this is a pretty easy one, can you speedrun it and solve it in under 5 minutes? sadservers.com/scenario/ale...
SadServers - Linux & DevOps Troubleshooting Interviews
Linux Troubleshooting Interview DevOps SRE
sadservers.com
November 23, 2025 at 7:50 PM
New SadServers scenario "Alexandria", this is a pretty easy one, can you speedrun it and solve it in under 5 minutes? sadservers.com/scenario/ale...
Congrats @infracost on their Series A raise. That a tool like this is a good / needed idea or that FinOps even exists is an indication of the super high cloud costs.
November 22, 2025 at 4:35 PM
Congrats @infracost on their Series A raise. That a tool like this is a good / needed idea or that FinOps even exists is an indication of the super high cloud costs.