redis-cli Diagnostics: INFO, SLOWLOG, MEMORY
Diagnose a live Redis with INFO, SLOWLOG, and MEMORY so you can catch slow commands, memory growth, and eviction pressure before the VPS starts swapping.
Databases8 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
Loki and Promtail on One VPS: When It Is Enough
Run Loki with a filesystem store and Promtail against journald on one VPS, with retention that fits the disk, and know the day this setup stops being enough.
Observability9 min read
Database URLs and Postgres Connection Counts in Python
Parse DATABASE_URL, size SQLAlchemy or Django pools, and cap Postgres max_connections so one VPS does not melt under worker fan-out and idle sessions.
App Deployment8 min read
Blue-Green on One VPS with Two systemd Units
Run app-blue and app-green on one VPS, health-check the idle color, then flip nginx so a bad release never shares a process with the live one.
Cloud Architecture8 min read
tcpdump and Packet Capture: Reading Traffic
Capture and analyze network traffic with tcpdump to debug slow connections, DNS issues, and firewall problems like a detective.
Linux Networking8 min read
Docker Log Drivers, Rotation, and Management
Configure Docker log drivers and rotation so containers never fill your disk, and learn which driver keeps docker logs working and which takes them away.
Containers7 min read
DNS for Self-Hosters: Subdomains, Records, and Split DNS
Plan subdomains, A/AAAA records, and split DNS for your whole self-hosted stack so both home and external users reach every service cleanly.
Self-Hosting7 min read
PHP-FPM Pools and Process Counts on 2 GB RAM
Size PHP-FPM pm.max_children on a 2 GB VPS so workers fit beside nginx and MySQL, then split pools if two apps should not share one process budget.
App Deployment8 min read
Put nginx TLS in Front of a Local Model API
Terminate TLS with nginx, keep llama-server on loopback, and proxy OpenAI-shaped routes without exposing a CPU model port to the public internet.
AI Infrastructure8 min read
nginx as an API Gateway, Not a Cloud Product
Use nginx on an edge VPS as your API gateway: TLS, routing, auth headers, body limits, and rate caps without buying a managed API gateway SKU.
Cloud Architecture8 min read
Restart Policies in systemd: Building Self-Healing Services
Pick the right Restart= policy, tune RestartSec and start-rate limits, and build services that recover from crashes without paging a human at 3 a.m.
Linux Administration6 min read
Automating SQLite Backups Safely Under Load
Back up live SQLite databases without corrupting them: use sqlite3 .backup and the online backup API, then automate and verify the copies on a VPS.
Backups & Data7 min read