System Administration on The Coders Blog

Reviving Sun Ray: Setting Up on OpenIndiana Hipster

Wed, 06 May 2026 16:59:24 +0000

You’ve got a box of dusty Sun Ray clients, a lingering fondness for Solaris, and a hankering to make it all work on something modern. Welcome to the reality of setting up a Sun Ray server on OpenIndiana Hipster 2025.10. It’s a journey paved with good intentions, older software, and a surprising amount of manual intervention.

The Core Problem

The fundamental challenge is bringing a once-cutting-edge, now unsupported thin-client solution into the modern era. Oracle discontinued Sun Ray support in 2014, and while OpenIndiana Hipster has made strides in Sun Ray support, it’s far from a plug-and-play experience. You’re essentially resurrecting a proprietary, legacy system on an open-source, actively developed OS.

[Security Breakdown]: Ubuntu's 15+ Hour DDoS - Lessons for Every Developer [2026]

Fri, 01 May 2026 11:21:29 +0000

April 30, 2026: 6 PM UK time. Ubuntu’s core services, the very bedrock for millions of developers, started crumbling under a sustained DDoS assault. This wasn’t just a hiccup; it was a 15+ hour security breakdown, a stark reminder that even the giants can be brought to their knees. This incident isn’t merely a cautionary tale for Canonical; it’s a blueprint for understanding and hardening your own defenses against the inevitable.

Linux 7.0: How a Kernel Preemption Bug Crippled PostgreSQL Performance in 2026

Wed, 29 Apr 2026 16:57:18 +0000

In April 2026, the Linux Kernel 7.0 release promised evolutionary advancements, but for PostgreSQL users, it delivered a brutal, silent performance regression, abruptly halving throughput on critical production workloads without a single error message.

The Silent Killer: How Linux 7.0 Blindfolded PostgreSQL

The eagerly awaited release of Linux Kernel 7.0 in early 2026 was met with the usual anticipation within the open-source community. Touted for its efficiency improvements and new hardware support, it was expected to be a solid, if not revolutionary, upgrade. Yet, for database administrators and cloud engineers managing high-performance PostgreSQL instances, it brought an unforeseen and devastating impact.