Technology
Metric Collection: Push vs. Pull Models - When to Use Which?
A deep dive into Push and Pull models for collecting system and application metrics, exploring which is more suitable for different scenarios...
#systemd
12 posts found.
Technology
✍️ Hand-written
Moving My GitHub Actions Runner to My Own VPS
A step-by-step guide on how I moved my GitHub Actions runner to my own VPS and reduced costs, while meeting my specific needs.
Tutorials
Why Are My Docker Containers Slow? A Monitoring Guide for My Own VPS
A practical guide to monitoring the performance of Docker containers on your own VPS and finding the root causes of slowdowns. Systemd, cgroup, and journald…
Technology
Nginx's Sneaky DNS Trap: Failing to Reach Docker Containers
How I solved Nginx's failure to reach Docker containers on my own VPS. An in-depth look at the `resolver` directive and the need for dynamic network.
Technology
✍️ Hand-written
Docker Ate 56 GB of Disk in a Day: Building a Cleanup Automation
Disk hit 100% on my VPS and my blog couldn't publish for 5 hours. Docker build cache 33 GB, unused images 23 GB. Pruning + a systemd timer is the permanent fix.
Tutorials
Core Dump Management and Privacy Runbook with systemd-coredump
Collecting core dumps in production: limits, retention, encryption, access and a practical runbook for safe analysis during an incident.
Tutorials
Centralized Logging with systemd-journal-remote: mTLS and Retention
A practical setup and runbook for shipping journald logs over mTLS to a central collector — without adding agents — while running a disciplined disk budget…
Tutorials
Zero-Downtime Restart with systemd Socket Activation
A runbook for shrinking deploy impact by separating connection acceptance into a socket unit, so the listening port never drops during service restarts.
Tutorials
✍️ Hand-written
Self-Healing Services with systemd Watchdog
Reduce 'stuck but not dead' failures with systemd WatchdogSec + notify: unit configuration, restart policy, and alarm integration.
Tutorials
Hardening Services with systemd Sandboxing (ProtectSystem…
Constrain services into a tighter permission set without changing the application itself: filesystem, capability, syscall, and network limits.
Tutorials
Cgroup v2 Memory Pressure Runbook with systemd-oomd
PSI, systemd-oomd policy, testing, and recovery steps to catch a node OOM crisis early and evict workloads in a controlled way.
Tutorials
systemd-Based Service Containerisation with Podman Quadlet
A practical way to manage server services with systemd and Podman Quadlet, free from the Docker daemon dependency.