André Batista (@klunkySQL) header
André Batista (@klunkySQL) profile picture
Lisbon, Portugal
Joined November 2008
André Batista retweeted
A spooky Linux networking gotcha 👻 You have a dual-homed server on a public and a private network with IP forwarding off. A service is listening on the IP address of the private interface. Can a client in the public network reach it? Check yourself: labs.iximiuz.com/challenges/…
8
17
1
151
16,037
Anatomy of a program in memory (by Gustavo Duarte): manybutfinite.com/post/anato…
14
1
102
6,992
André Batista retweeted
This GitHub repo is an entire production-grade DevOps course. 18 hands-on labs take one application from Docker and CI/CD to Terraform, Kubernetes, Helm, Argo CD, Prometheus, Grafana and progressive delivery. github.com/inno-devops-labs/…
7
87
3
591
20,285
André Batista retweeted
Apple ships one of the fastest, highest-capacity free object stores in the world and nobody is using it. Inspired by @ironseth_s I found a way to get ~12 TB for $0. Paying $0.023/GB for AWS S3 is a skill issue. Use icloud as s3 as the goat of object stores. 284x faster than r2. Seth, let's add this to your stack!
97
116
47
3,052
454,720
André Batista retweeted
Rocky Linux’s creators just built a Kubernetes engine that lets AI agents manage clusters directly. CIQ’s new Stratum Kubernetes Engine (SKE) bundles Kubernetes into one signed binary with an MCP server built in. AI agents can troubleshoot issues and, with operator permission, scale workloads or upgrade clusters. There are 18 read-only tools by default, with up to 37 available. Operators decide which capabilities to expose. No separate Kubernetes MCP server to install. SKE is FREE and open source, in technical preview with general availability expected November 5. Source: ciq.com/press/ciq-introduces…
42
71
8
699
35,827
André Batista retweeted
How Docker Run Command Works 🐳 When you "docker run nginx" from the terminal, it feels like launching a regular foreground process - stdin, stdout, and stderr get streamed back and forth, and you can kill it with Ctrl+C. But what happens internally is much more involved 👇 Explore: labs.iximiuz.com/challenges/…
1
23
1
258
7,591
André Batista retweeted
This might be one of the craziest sites I’ve found for learning Linux and DevOps. 2,500+ tutorials, courses, cheat sheets and cert prep for CKA, CKAD, CKS, RHCSA, RHCE, Terraform and Azure, all FREE. golinuxcloud.com/
🤝 Paid partnership
15
180
5
1,181
58,009
André Batista retweeted
Linux Networking 101: Routing You're given three separate machines on two different networks. Can you configure basic routing so the leaf nodes can communicate through the router? Practice: labs.iximiuz.com/challenges/…
3
33
1
391
13,060
André Batista retweeted
pg_dump + pg_restore finished. Exit code 0. Row counts match. Your database is not ready yet. One query, 250M rows, Postgres 18.6, cold cache: → right after pg_restore: 32.6 s → after ANALYZE: 6.1 s → after VACUUM ANALYZE: 23 ms 💥 Same data. ~1,400× faster. A logical dump does not carry the visibility map, and by default not the planner statistics. 25 of 28 migration guides we checked don't say to run VACUUM after the load. Before traffic: vacuumdb --analyze --jobs 4 then ANALYZE each partitioned parent All tests are reproducible, and the scripts are in the post (bonus: podcast episode) 👇
15
23
2
195
14,723
André Batista retweeted
Subimos uma ferramenta de auditoria pra quem quiser investigar e entender o segundo turno da eleição seuimposto.com/auditoria/
93
179
9
1,737
99,826
André Batista retweeted
Faz amanhã 11 anos que comprei o sismos.pt que desde entao estava a redireccionar para a página de sismos do IPMA. Pedi ao Claudio para fazer aqui uma brincadeira.. e foi nisto que deu! O frontend corre na Cloudflare e o código está aberto! Façam PRs!
35
52
5
727
57,554
André Batista retweeted
Passenger v0.2.2: .NET 11 and C# 15 support (file-based apps, .slnf, unions, runtime-async stepping), a faster editor, and C#'s language server holding about half the memory. Free and open source, with a debugger, profiler and Hot Reload included. Still free and MIT. #dotnet #aspire passenger-ide.net/?v=0.2.2
5
8
91
2,957
André Batista retweeted
I recently added "dynamic" social preview images for iximiuz Labs, and it was surprisingly fun to build. TL;DR: headless Chrome-as-a-Service running in a scale-to-zero Fly application screenshots site pages and stores them as optimized PNG images. The best part is that it costs me close to $0/mo and works for any site page that doesn't define its own static override. More technical details in the blog post: labs.iximiuz.com/blog/adding…
4
10
1
105
5,771
André Batista retweeted
Alguns jogos que pode jogar pelo navegador, obrigado @Expefirex por fazer o levantamento: Resident Evil Outbreak 1 y 2 - Outbreakweb.com Mortal Kombat Armageddon - mka.lauta.site Def Jam: Fight for NY - defjam.lauta.site F1 2006 Online - f12006.online Virtua Tennis 3 Online - vt3.online Tekken: Dark Resurrection: tekken.lauta.site WWE SmackDown vs. Raw 2011 - wwe2011.online Dragon Ball Budokai 1 - budokai1online.win Dragon Ball Budokai 2 - budokai2onlline.cc Dragon Ball Budokai 3 - dragonballbudokai3.online GTA Vice City - gta.rabisco.net Cyberpunk 2077 - cyberpunk2077.lol Mortal Kombat: Shaolin Monks - mortalkombatsm.online Geometry Dash - gd.lauta.site Rugby 08 - mitchivin.github.io/rugby08N… Street 2 - nilstreet.playthecombine.com Cricket 07 - cricket07.dhaiwat.com HALO Multijugador - nothalo.lol MU Online - muclaude.online TOCA Race Driver 3 - toca3.quepccomprar.com.ar
12
115
4
1,021
44,685
André Batista retweeted
mano ta de sacanagem e esse site que fizeram q eh um simulador de cdj que lê o seu pendrive nativamente e vc consegue tocar MULTIPLAYER com outras pessoas. pelo navegador !!!!!!!!!!! b2bstudio.live/
109
527
150
7,050
461,667
André Batista retweeted
✅ php2shell is fixed on @citrix @NetScaler (CTX697263, updated today): 14.1-73.49 · 13.1-64.32 · 14.1-73.49 FIPS · 13.1-37.286 FIPS/NDcPP One build for everything – also fixes CTX697096, CVE-2026-88779 and CVE-2026-107406. 🛠️ Checker v1.18: github.com/ThomasPoppelgaard… #NetScaler #Citrix #php2shell
2
3
11
1,583
André Batista retweeted
339 realistic scenarios to practice Linux, containers, Kubernetes, and networking 🛠️ Each problem drops you into a VM or a small network and expects you to bring the system to the desired state. Most of the time w/o enforcing how - just like in real life: labs.iximiuz.com/challenges
6
9
92
3,786
André Batista retweeted
Anonymous VPS in Switzerland and Panama Linux & Windows VPS with NVMe SSD and 1 Gbps unmetered. No KYC, no logs, DMCA ignored. Pay with crypto. Live in 60 seconds. swiss-gs.com/
8
27
3
360
22,274
André Batista retweeted
Brutal reality of making 500K on Steam as a game dev
985
320
241
14,402
2,647,913
André Batista retweeted
Stop Hunting for Quality .NET Content I aggregate 140+ developer blogs, news, and articles so you don't have to. Get the best .NET content delivered to your inbox each morning.

3
14
1
155
473,611