PPTP Is a Trap: Why You Should Avoid It and What to Use Instead
PPTP is obsolete and breakable. Learn the real failure modes, fast diagnostics, safer VPN replacements, and a step-by-step migration plan.
Best GPU for Video Editing: CUDA vs VRAM vs CodecsβWhat Actually Wins
Choose the right GPU for video editing by bottleneck: codecs, VRAM, or compute. Diagnose your NLE, verify decode paths, and avoid costly mistakes.
ZFS zpool initialize: Making New Drives Behave Better From Day One
How zpool initialize preconditions new ZFS vdevs to reduce latency spikes and surprises. Practical commands, diagnostics, mistakes, and playbooks.
Marketing Cores: When Numbers in a Name Mislead
Core counts and model numbers often hide real performance. Learn how to verify CPU, storage, and licensing reality with practical SRE checks and commands.
Docker IPv6 Leaks: Prevent βOops, Itβs Publicβ Exposure
Stop Docker IPv6 βoops itβs publicβ exposure: learn how leaks happen, diagnose fast, and apply hardening steps for hosts, networks, and firewalls.
Ubuntu 24.04: Services in restart loop β stop the loop and catch the root error
Stop systemd restart loops on Ubuntu 24.04, capture the real failure, and fix it fast with journalctl, coredumps, limits, and dependency checks.
Duron: the budget chip people overclocked like a flagship
Why AMDβs Duron became the scrappy overclocking legend: architecture, failure modes, and a production-grade playbook for stable, safe tuning.
Y2K: The Biggest Tech Panic That βWorkedβ Because People Did the Work
Y2K wasnβt hype; it was risk retired by inventory, testing, and boring fixes. Learn what worked, what failed, and how to apply it today.
AMD VCN/VCE: why the codec block matters more than you think
AMD VCN/VCE can make or break video pipelines. Learn how to verify hardware encode/decode, spot bottlenecks fast, and avoid costly production failures.
Memory Bus Width (128/256/384-bit): When It Actually Matters
A practical guide to GPU memory bus width: how it affects bandwidth, when it bottlenecks real workloads, and how to diagnose fast in production.
MySQL vs CockroachDB: distributed SQL on small serversβthe latency tax nobody mentions
A practical SRE take on MySQL vs CockroachDB on small servers: latency taxes, failure modes, and how to measure before you migrate or regret it.
GeForce FX βLeaf Blowerβ: The GPU Famous for Its Noise
Why the GeForce FX earned its βleaf blowerβ reputation: thermals, acoustics, drivers, and practical ops-grade diagnostics to tame noisy GPUs.
Fix hreflang Errors in Multilingual WordPress (and Restore Google Language Targeting)
Diagnose and fix hreflang errors in multilingual WordPress: correct language targeting, stop index chaos, and make Google pick the right pages.
Debian 13 mdadm RAID Degraded: Replace and Rebuild Without Data Loss
A production-grade guide to diagnosing degraded mdadm RAID on Debian 13, replacing failed disks, rebuilding safely, and avoiding silent data loss.
Site-to-Site VPN: The Routing Checklist That Prevents One-Way Traffic
A production-grade checklist to stop one-way traffic in site-to-site VPNs: routing, NAT, MTU, firewall, and diagnostics with decisive commands.
Proxmox LDAP/AD Login Fails: Where the Auth Chain Breaks and How to Fix
Trace Proxmox LDAP/AD failures end-to-end: DNS, TLS, binds, filters, groups, PAM, and permissions. Diagnose fast with commands and fixes that stick.
Fix WordPress βexceeds upload_max_filesizeβ: raise limits correctly (PHP, Nginx/Apache, hosting)
Stop WordPress upload_max_filesize errors by raising PHP, web server, and proxy limits the right wayβverified with commands and safe rollback steps.
Subscription fatigue: how the industry rented you your own tools
Subscription fatigue is an ops problem: licenses become outages, budgets become latency, and tooling turns into rent. Learn how to regain control.
Debian 13: Proxy settings break apt/curl β where they hide and how to clean them up
Track down hidden proxy settings in Debian 13 that break apt and curl: files, env vars, systemd, and how to purge and verify clean behavior.
Blockchain Everywhere: The Hype That Glued Itself to Products
A practical SRE view of why blockchain got bolted onto products, how it fails in production, and what to check before you ship a ledger.
Email: DKIM fails β why the signature breaks (and how to fix it fast)
DKIM failures come from tiny message changes: headers, whitespace, relays, or DNS. Diagnose fast with commands, then fix signing, DNS, and routing.
Docker GPU in Containers: Why It Fails and How to Fix It
A production-grade guide to why GPUs fail inside Docker: drivers, runtimes, cgroups, and permissionsβplus fast diagnosis and durable fixes.
Proxmox Firewall Rules Donβt Apply: iptables vs nftables Conflicts Explained
Diagnose why Proxmox firewall rules donβt apply when iptables and nftables conflict. Fast checks, commands, outputs, fixes, and failure modes.
3dfx Voodoo: the card that made 3D mainstream
How 3dfx Voodoo made 3D gaming mainstreamβand what its rise and fall teach SREs about drivers, bottlenecks, compatibility, and boring reliability.
WordPress Not Sending Email: SMTP Setup That Actually Delivers
Fix WordPress email delivery with SMTP the sane way: logs, DNS, SPF/DKIM/DMARC, provider quirks, and repeatable tests that stop mail vanishing.
Why Drivers Will Become Part of the Game Even More
Drivers now decide performance, stability, and cost. Learn how storage and network drivers shape bottlenecks, outages, and sane operations at scale.
DNS CNAME Chains: When They Become a Performance and Reliability Problem
CNAME chains quietly add DNS latency and failure modes. Learn how to detect, measure, and fix them with practical commands and runbook steps.
Proxmox iSCSI login failed: target reachable but no LUN β how to fix it
Fix Proxmox iSCSI βlogin failedβ when the target responds but no LUN appears. Diagnose auth, ACLs, portals, LUN mapping, and multipath.
No backups: the oldest tech horror with no monsters
No backups isnβt a mistake, itβs a system design flaw. Learn how failures happen, how to diagnose fast, and how to build recoverable backups.
Proxmox SMB/CIFS Is Slow for VM Disks: Why Itβs Bad and What to Use Instead
SMB/CIFS for Proxmox VM disks often stalls on latency, locking, and sync writes. Learn fast diagnosis, common traps, and better storage options.
Container Queries Practical Guide: Component-First Responsive Design
A production-minded guide to CSS container queries: build resilient component-first layouts, debug failures fast, and avoid the common traps.
Proxmox got slower after upgrade: the first checks that usually reveal the cause
After a Proxmox upgrade, slow VMs usually trace to CPU scheduling, storage latency, or networking changes. Run these checks to pinpoint it fast.
βGaming routerβ marketing: how WiβFi got a cosplay outfit
Gaming routers promise lower ping, but most latency is upstream, airtime is shared, and QoS can backfire. Diagnose WiβFi like production.
ZFS zpool iostat -r: Reading Latency Like a Pro
Learn to interpret ZFS zpool iostat -r latency the way SREs do: spot bottlenecks fast, avoid common traps, and make safe fixes in production.
WordPress Stuck in Maintenance Mode: Remove It Safely and Prevent Repeats
Get WordPress out of maintenance mode safely: confirm updates, remove .maintenance, fix permissions, and prevent repeats with sane deploy practices.
Mobile Docs Navigation Drawer That Doesnβt Break: Overlay, Scroll Lock, and Focus
Design a mobile docs navigation drawer that ships: reliable overlay behavior, scroll lock, focus management, a11y, and debuggable production checks.
Windows Phone: How a Good OS Lost to Ecosystems
Windows Phone nailed UX, performance, and design, but lost to app ecosystems, platform incentives, and partner economics. Hereβs the technical autopsy.
WireGuard on a Router: NAT Mistakes That Break LAN Access (and Fixes)
Stop WireGuard NAT from breaking LAN access. Diagnose routing vs NAT issues fast, fix AllowedIPs and firewall rules, and restore local reachability.
Email: β554 spam detectedβ β clean up reputation without wasting weeks
Triage 554 spam detected fast: prove alignment, fix SPF/DKIM/DMARC, stop noisy sends, warm up safely, and rebuild mailbox trust without guesswork.
Proxmox VE for beginners: the first 10 settings to fix after install (security, storage, backups)
Fix the first 10 Proxmox VE settings after install: tighten security, clean up storage, and make backups actually restorable with fast diagnostics.
Docker Observability Minimum: Metrics and Logs That Catch Failures Early
A practical minimum set of Docker metrics and logs to detect failures early, with commands, triage playbook, and fixes for common outage patterns.
VGA and SVGA: The Standards War That Shaped PC Visuals
A practical, ops-minded history of VGA vs SVGA: why compatibility won, how drivers broke, and how to diagnose display issues fast in real fleets.
Dovecot IMAP Login Fails: Where Auth Breaks and How to Fix It
Find exactly where Dovecot IMAP authentication fails: logs, auth workers, SQL/LDAP, TLS, permissions, and fixes with real commands and decisions.
Debian 13 SMART warnings: which attributes actually predict failure (and what to do)
Learn which SMART attributes truly predict disk failure on Debian 13, how to read smartctl output, and exactly what actions to take fast.
Debian 13: Core dumps fill your disk β keep debugging value, drop the bloat
Stop Debian 13 core dumps from filling disks without losing debugging value. Diagnose sources fast, set sane limits, and retain the right data.
WordPress βCookies are blockedβ: what it really means and how to fix it
Decode WordPress βCookies are blockedβ failures: headers, HTTPS, caching, proxies, and plugins. Diagnose fast with commands and apply durable fixes.
PCIe passthrough on Proxmox vs ESXi: GPUs, HBAs, NICs β whatβs easier and whatβs faster
A pragmatic SREβs comparison of Proxmox vs ESXi PCIe passthrough for GPUs, HBAs, and NICs: setup friction, speed, failure modes, and fixes.
Debian 13: Filesystem mounted read-only after errors β recovery steps that minimize damage
A production-grade playbook for Debian 13 when filesystems flip to read-only: diagnose fast, preserve data, repair safely, and prevent recurrence.
ZFS zfs receive: The Import Side That Breaks When You Ignore Properties
Operational guide to zfs receive: how properties, mounts, encryption, and send flags interactβplus fast diagnosis, pitfalls, and safe commands.
ZFS L2ARC on SATA SSD: When Itβs Worth Doing
A pragmatic guide to using a SATA SSD as ZFS L2ARC: when it helps, when it hurts, how to size it, and how to diagnose cache bottlenecks fast.