#SRE

🛑 𝗜𝘀 𝗔𝘀𝘆𝗺𝗺𝗲𝘁𝗿𝗶𝗰 𝗥𝗼𝘂𝘁𝗶𝗻𝗴 𝘁𝗵𝗲 𝘀𝗶𝗹𝗲𝗻𝘁 𝗸𝗶𝗹𝗹𝗲𝗿 𝗼𝗳 𝘆𝗼𝘂𝗿 𝗻𝗲𝘁𝘄𝗼𝗿𝗸?

If you are seeing dropped packets or unpredictable firewall logs, your traffic might be walking a zigzag path. We’ve written the definitive 𝘁𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴 𝗴𝘂𝗶𝗱𝗲 to help you identify and fix these connectivity ghosts. 👻🔧

Restore order to your infrastructure here: 👇

https://www.relianoid.com/resources/knowledge-base/troubleshooting/asymmetric-routing-issues/

#NetworkEngineering #Troubleshooting #SRE #SysAdmin

PSA for anyone running nginx with passive health checks in front of rate-limited services: the default max_fails counts ALL non-2xx/3xx responses including 429. Your rate limiter doing its job looks identical to a crashed backend to the health checker.

Fix:
proxy_next_upstream error timeout http_500 http_502 http_503;

Also: expose /healthz with no rate limiting so active health probes never get throttled. #SRE #Nginx #ProductionEngineering #Reliability #Programming #DevOps #Tech #Code

𝗠𝗮𝗱𝗿𝗶𝗱, 𝗮𝗿𝗲 𝘆𝗼𝘂 𝗿𝗲𝗮𝗱𝘆?

The team is moving! 🚀 We are thrilled to announce that 𝗥𝗘𝗟𝗜𝗔𝗡𝗢𝗜𝗗 will be attending 𝗠𝗮𝗱𝗿𝗶𝗱 𝗧𝗲𝗰𝗵 𝗪𝗲𝗲𝗸 𝟮𝟬𝟮𝟲.

If you want to talk about Software Reliability, Load Balancing, and the future of tech infrastructure, we need to meet. Come say hi, let’s network, and shape the industry together.

Who else is going? Let us know in the comments! 👇

https://www.relianoid.com/about-us/events/madrid-tech-week-2026/

#MadridTechWeek2026 #Relianoid #SRE #Networking #MadridTech

PSA for anyone implementing distributed rate limiting with Redis: INCR + EXPIRE has a race condition. If your process crashes between the INCR and the EXPIRE, that key lives forever and your counter never resets.

Use a Lua script or MULTI/EXEC pipeline to make the increment-and-expire atomic. Or use sorted sets with sliding window logs where each entry self-expires. Either way, test by killing processes mid-request.

#SRE #RateLimiting #Redis #ProductionEngineering #Programming #DevOps #Tech