RAM Planning: Spotting Memory Pressure Before the OOM Killer
Learn to read memory pressure on a VPS, distinguish reclaimable cache from real usage, and size your RAM well before the OOM killer ever acts.
Hardware & Performance7 min read
NetBay journal
Guides for operators
Practical guides for Linux, containers, CI/CD, self-hosting, and running VPS infrastructure from Netbay Engineering.
599 articles · 24 topics
AllLinuxLinux AdministrationWindowsLinux SecurityLinux NetworkingContainersContainers & OrchestrationKubernetesCI/CDGitHubSelf-HostingBackups & DataDatabasesApp DeploymentDNS & TLSObservabilityEmailAI AgentsAI InfrastructureAPI & AutomationProxiesCloud ArchitectureHardware & PerformanceDevOps Practices
AlmaLinux vs Rocky Linux: Choosing a CentOS Successor
Both rebuild RHEL source, but governance, release cadence, and tooling differ. Compare the two CentOS successors on facts that matter for production.
Linux7 min read
Nginx Reverse Proxy Setup from Scratch (Server Blocks)
A step-by-step Nginx reverse proxy from a clean VPS: install, server blocks, proxy_pass, upstreams, and the header set you need for real client IPs.
Proxies8 min read
mTLS with Client Certificates: What Proxies Need to Know
Mutual TLS verifies both sides of a connection with certificates. Learn when client certificates genuinely matter and how to enforce them at your proxy edge.
Proxies7 min read
PTR, HELO, and Matching the SMTP Hostname
Receivers reject mail when PTR, HELO, and the A record disagree. Align the hostname, reverse DNS, and Postfix myhostname before you send mail.
Email8 min read
Build a Multi-Model Router Cheap Model First
Send easy prompts to a cheap model and escalate only when a classifier, token budget, or failed JSON parse says the expensive model is worth it.
AI Infrastructure8 min read
Deploying Next.js on Your Own VPS with PM2 and Nginx Reverse Proxy
Run next start under PM2 on a loopback port, keep it alive across reboots, and put Nginx in front with the proxy headers Next.js expects to see.
App Deployment7 min read
Reusable Workflows: Sharing CI Logic Across Repositories
Factor repeated pipeline logic into reusable GitHub Actions workflows with typed inputs and secrets, and share one tested CI definition across repositories.
GitHub8 min read
php.ini Knobs: Memory, Uploads, and Opcache
Tune the few php.ini knobs that matter in production: memory_limit, upload sizes, and opcache, so a 2 GB VPS serves PHP without swap or silent upload failures.
App Deployment8 min read
Writing Custom systemd Unit Files for Your Own Applications
Learn the [Unit], [Service], and [Install] sections, pick the right Type=, and ship a production-ready unit file for your own application on any modern distro.
Linux Administration6 min read
Code Review That Feeds the Pipeline: PR Checks Worth Gating On
Pick the pull-request checks that actually protect a branch, and wire them into CI so review stops shipping known-bad merges.
CI/CD6 min read
Exposing Self-Hosted Apps Safely with Caddy
Use Caddy for automatic TLS, http-to-https redirects, and controlled exposure of internal apps without opening more than the ports you intend.
Self-Hosting7 min read