Point-in-time recovery in Postgres: WAL, backups, restores
Restore Postgres to the second before a mistake: base backups and WAL archiving, recovery settings, pgBackRest, WAL-G and managed services, retention, and restore testing.
Ideas & updates
The Upclass Blog
Security, piracy and engineering deep dives, plus practical ideas for growing your institute. From the team building Upclass.
More articles Page 2 of 11
What is DRM, how does it work, and where does it fail?
DRM in plain English: encrypted video, licences and device security levels, what DRM does well, where it fails in practice, and what to ask a video platform.
How to scale a video learning platform
From transcoding and CDNs to live classes and test-day spikes: an engineer's guide to scaling video learning for thousands of students at once.
What is encryption? A plain-English guide
Encryption protects your UPI payments, WhatsApp chats and course videos. Here's how it works, what keys do, and what encryption can and can't protect.
How to start online coaching classes in India
Choose live, recorded or hybrid teaching, plan one batch, price it with a break-even in mind, collect fees in your own gateway, protect your videos and launch to your first students.
Why DRM alone can't stop piracy
DRM protects video on its way to the screen, not after it. The leak routes it leaves open, from phone cameras and shared logins to weak devices, PDFs and insiders.
How to handle 100,000 concurrent users
Load balancing, caching, queues, read replicas, connection pooling, autoscaling and load testing: how to build a platform that survives its busiest minute.
Symmetric vs asymmetric encryption: what's the difference?
One shared key, or a public and private pair? How the two families of encryption work, what each is good at, and why the internet relies on both at once.
LMS features checklist for coaching institutes
The questions to ask in every LMS demo, from video protection and tests to payments, data export and exit terms, plus a weighted scoring sheet to compare vendors.
How video piracy hurts coaching institutes
Leaked lectures cost institutes far more than lost fees. How courses leak, what piracy really costs, why common fixes fall short, and what to ask a vendor.
Horizontal vs vertical scaling: which should you use?
Scale up or scale out? The trade-offs in cost, limits and downtime, what stateless apps need, and why databases usually grow vertically first, with a worked cost example.
AES-256, explained simply
What AES-256 is, what the 256 means, what happens inside the cipher, and why real-world failures come from key handling rather than the algorithm.
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