In-depth technical guides, tutorials, and best practices for Docker container management, security hardening, and self-hosted infrastructure.
Configure GPU passthrough for Docker containers using the NVIDIA Container Toolkit. Set up CUDA workloads, TensorFlow, and PyTorch in containerized environments.
Organize your self-hosted services with a dashboard. Compare Homer, Homarr, and Dashy for features, customization, and ease of deployment.
Master Docker environment configuration with .env files, Docker secrets, and config injection patterns. Avoid common pitfalls with sensitive data in containers.
Understand Linux process lifecycle, signals, job control, and process monitoring. Essential knowledge for managing server workloads effectively.
Go beyond default bridge networks with custom network drivers, Macvlan for direct LAN access, and IPv6 configuration for Docker containers.
Install and configure Docker on Raspberry Pi for home automation, media servers, and development. Includes ARM-compatible container recommendations and project ideas.
Reduce infrastructure costs by optimizing Docker resource allocation, right-sizing containers, and implementing efficient scheduling and scaling strategies.
A comprehensive reference of cloud native terminology covering containers, orchestration, CI/CD, observability, and infrastructure concepts.
Trace the evolution of containerization from early chroot jails through cgroups and namespaces to modern Docker and Kubernetes orchestration.
A comprehensive security checklist covering host configuration, daemon settings, container runtime, images, and network security for Docker environments.
Deploy and manage Docker Swarm clusters through usulnet's visual interface. Service scaling, rolling updates, and cluster monitoring made accessible.
Explore the full feature set of usulnet including container management, security scanning, backup automation, reverse proxy configuration, and multi-node support.
Run unit, integration, and end-to-end tests inside Docker containers. Consistent test environments, test databases, and CI/CD integration patterns.
Set up centralized logging for Docker with ELK stack, Grafana Loki, or Fluentd. Aggregate, search, and analyze container logs at scale.
Deploy API gateways in Docker for rate limiting, authentication, and routing. Compare Kong, Traefik, and custom gateway solutions for microservices.
Install and configure Docker Desktop with WSL2 on Windows. Optimize performance, share files between Windows and Linux, and set up development workflows.
Deploy message queue systems in Docker for asynchronous workloads. Compare RabbitMQ, Redis Streams, and NATS for reliability and performance.
Implement multi-layer caching with Redis, Nginx proxy cache, CDN integration, and application-level strategies to dramatically improve response times.
Create reproducible development environments with Dev Containers, Docker Compose, and GitHub Codespaces. Onboard new developers in minutes, not days.
Build complete CI/CD pipelines with GitHub Actions for Docker projects. Automated testing, image building, registry pushing, and deployment workflows.
Choose the right Git branching strategy for your team. Compare Git Flow, GitHub Flow, trunk-based development, and release branching models.
Run MySQL and MariaDB in Docker with proper configuration, replication setup, backup strategies, and performance tuning for production workloads.
Deploy Redis in Docker for caching, pub/sub messaging, and session storage. Configure persistence with RDB and AOF, and set up Redis Sentinel for high availability.
Run PostgreSQL in Docker for production with proper volume management, performance tuning, backup automation, and high availability using streaming replication.
Navigate a career in system administration. Essential skills, certifications, tools to master, and paths from junior sysadmin to DevOps engineer or SRE.
Compare Docker-compatible backup tools including Restic, BorgBackup, Duplicati, and Velero. Evaluate performance, deduplication, encryption, and ease of use.
Design infrastructure that supports both ARM64 and x86 architectures. Multi-arch container registries, build pipelines, and heterogeneous cluster management.
Build mesh VPN networks with Tailscale and self-hosted Headscale. Connect distributed infrastructure securely without complex firewall rules.
A curated collection of 50 self-hosted services with ready-to-use Docker Compose configurations. From productivity tools to media servers and development platforms.
Understand how Linux manages memory, when swap is used, and how the OOM killer selects processes. Tune memory settings for optimal server performance.
Transition from Docker Compose to Kubernetes. Map Docker concepts to Kubernetes equivalents and learn pods, deployments, services, and config management.
Master Arch Linux package management with pacman commands, AUR helpers, package building, and system maintenance routines to keep your server stable.
Boost your command line efficiency with essential tools like tmux, fzf, ripgrep, and bat. Workflow tips and shell customizations for system administrators.
Design and deploy microservices architectures with Docker. Service communication patterns, API gateways, service discovery, and deployment strategies.
Deploy and manage databases in Docker containers. Configuration, persistence, backup strategies, and performance considerations for PostgreSQL, MySQL, Redis, and MongoDB.
Advanced Docker Compose techniques including multi-file overrides, profiles for selective service startup, YAML extensions, and environment-specific configurations.
Implement secure server access with SSH key management, role-based access control, and comprehensive audit logging for compliance and security.
Create automated security scanning pipelines that check code, dependencies, Docker images, and runtime configurations. Integrate SAST, DAST, and container scanning.
Implement zero trust principles in your self-hosted environment. Mutual TLS, identity-aware proxies, microsegmentation, and continuous verification strategies.
Compare Podman and Docker for container management. Rootless operation, daemonless architecture, Docker compatibility, and when to choose each tool.
Compare LXC system containers with Docker application containers. Architecture differences, use cases, performance characteristics, and when to use each approach.
Understand the security implications of exposing the Docker socket. Socket proxies, TLS authentication, and alternative approaches to protect your Docker daemon.
Deploy CrowdSec for collaborative intrusion detection and prevention. Leverage community-shared threat intelligence to protect your servers and containers.
Configure Fail2Ban to protect SSH, web applications, and Docker services from brute force attacks. Custom jails, filters, and integration with firewalls.
Set up the Linux audit framework with auditd for compliance monitoring, intrusion detection, and forensic analysis. Write custom audit rules and analyze logs.
Secure the entire container stack from kernel namespaces and cgroups to application-level protections. Seccomp profiles, AppArmor, and runtime monitoring.
Compare the top reverse proxy solutions for self-hosted environments. Performance benchmarks, auto-SSL, Docker integration, and configuration complexity.
Navigate open source licenses for your projects and dependencies. Understand copyleft vs permissive licenses, compatibility, and compliance requirements.
Automate workflows with self-hosted tools. Deploy n8n, Node-RED, and Huginn in Docker for task automation, integrations, and event-driven processing.
Deploy privacy-respecting analytics with Plausible, Umami, or Matomo. GDPR-compliant, cookie-free tracking you control entirely on your own infrastructure.
Compare self-hosted VPN options for remote access and site-to-site connectivity. Performance, security, ease of setup, and mobile client support.
Compare self-hosted wiki platforms for team knowledge management. Features, editor experience, access control, and Docker deployment for each solution.
Replace Dropbox and Google Drive with self-hosted cloud storage. Compare Nextcloud, Seafile, and Syncthing for features, performance, and deployment complexity.
Set up a self-hosted media server with Jellyfin, Plex, or Emby using Docker. Hardware transcoding, library organization, and remote access configuration.
Deploy Vaultwarden as a self-hosted Bitwarden-compatible password manager. Complete setup, HTTPS configuration, backup strategy, and security hardening.
Build a full observability stack with Prometheus, Grafana, Loki, and Alertmanager. Monitor servers, containers, and applications from a single self-hosted platform.
Compare self-hosted Git platforms for your team. Resource requirements, CI/CD capabilities, migration tools, and Docker deployment for Gitea, GitLab CE, and Forgejo.
Deploy a full-featured email server with Mailcow in Docker. DNS configuration, spam filtering, DKIM/SPF/DMARC setup, and ongoing maintenance tips.
Automate Docker Swarm deployments with CI/CD pipelines. Git-triggered builds, image promotion, rolling updates, and rollback strategies.
Design highly available Docker Swarm clusters with multi-manager setups, failure recovery, and infrastructure redundancy for production workloads.
Diagnose and resolve common Docker Swarm problems including node failures, networking issues, service scheduling errors, and Raft consensus problems.
Harden your Docker Swarm cluster with mutual TLS, encrypted overlay networks, secret rotation, node certificate management, and access control policies.
Solve persistent storage challenges in Docker Swarm with volume plugins like REX-Ray, GlusterFS, and NFS. Ensure data availability across node migrations.
Monitor Docker Swarm clusters with Prometheus, Grafana, and centralized logging. Service-level metrics, node health tracking, and alert configuration.
Implement zero-downtime deployments with Docker Swarm rolling updates. Update policies, health check integration, rollback configuration, and blue-green strategies.
Use Docker Swarm's built-in secrets and configs for secure configuration management. Secret rotation, access control, and integration with external vaults.
Understand Docker Swarm networking internals. Overlay network architecture, ingress load balancing, service mesh patterns, and multi-host connectivity.
Deploy Docker Swarm for production workloads with proper cluster sizing, manager quorum, worker node management, and operational runbooks.
Compare container orchestration platforms for different scales and use cases. Resource requirements, learning curve, features, and production readiness.
Build a disaster recovery plan for your infrastructure. RPO/RTO targets, backup verification, failover procedures, and regular DR testing strategies.
Design highly available self-hosted infrastructure. Load balancing, database replication, shared storage, and failover strategies for critical services.
Automate server provisioning, configuration, and maintenance with Ansible. Playbooks, roles, inventory management, and Docker deployment automation.
Deploy Prometheus and Grafana for infrastructure monitoring. Configure exporters, create dashboards, set up alerting rules, and integrate with Docker.
Master Nginx from static file serving to complex reverse proxy configurations. Server blocks, SSL termination, load balancing, and caching strategies.
Set up WireGuard VPN for secure remote access to your servers. Key generation, peer configuration, routing, and integration with Docker networks.
Understand DNS resolution, record types, caching, and troubleshooting. Configure DNS for self-hosted services, internal domains, and split-horizon setups.
Understand SSL/TLS certificates, configure HTTPS, and automate certificate management with Let's Encrypt. Covers self-signed certs, ACME, and best practices.
Adopt infrastructure as code practices with Ansible, Terraform, and Docker. Version-controlled server configurations, reproducible environments, and drift detection.
Implement the 3-2-1 backup strategy for bulletproof data protection. Three copies, two media types, one offsite location with automated verification.
Build a homelab from hardware selection to service deployment. Network planning, server configuration, Docker setup, and essential self-hosted services.
Tune Linux kernel parameters with sysctl for better network performance, memory management, and file system throughput. Production-tested configurations included.
Write reliable Bash scripts for server automation. Variables, control flow, functions, error handling, and best practices for production-grade shell scripts.
Configure Arch Linux as a dedicated Docker host. Kernel parameters, storage drivers, networking, and systemd integration for optimal container performance.
Manage Linux storage with LVM logical volumes, software RAID arrays, and filesystem administration. Expand, shrink, and migrate storage without downtime.
Harden SSH with key-based authentication, port changes, fail2ban integration, jump hosts, and certificate-based authentication for enterprise environments.
Configure Linux firewalls with iptables, nftables, or firewalld. Rule syntax, zone management, Docker integration, and common security configurations.
Optimize Linux server performance with CPU scheduling, I/O tuning, network stack optimization, and profiling tools. Identify and eliminate bottlenecks.
Master Linux networking essentials including interfaces, routing, bridges, VLANs, and troubleshooting tools. Foundation knowledge for container networking.
Master systemd for service management, scheduled tasks with timers, journal log analysis, and system resource control. Essential for every Linux administrator.
Understand the Linux filesystem hierarchy standard. Know where configuration, logs, binaries, and application data belong for proper server administration.
Set up Arch Linux as a production server. Installation, base configuration, security hardening, package management, and maintenance routines for server use.
Harden your Linux server with a comprehensive security checklist. User management, SSH, firewall, kernel parameters, file permissions, and audit logging.
Build Docker images for ARM and x86 architectures from a single Dockerfile. Docker Buildx, QEMU emulation, CI/CD integration, and manifest lists.
Reclaim disk space with Docker system prune, image cleanup, volume management, and automated maintenance scripts. Keep your Docker host running efficiently.
Create a productive local development environment with Docker. Hot reloading, debugging, database seeding, and parity between development and production.
Write efficient, secure Dockerfiles for production. Layer ordering, caching strategies, multi-stage builds, security scanning, and common antipatterns to avoid.
Diagnose and fix the most common Docker problems. Container crashes, networking issues, volume permissions, image pull failures, and resource exhaustion.
Interact with the Docker Engine API for programmatic container management. REST endpoints, SDK examples, event streaming, and building custom tooling.
Understand Docker storage drivers and their performance characteristics. Choose between overlay2, btrfs, zfs, and devicemapper for your workload requirements.
Run Docker without root privileges for enhanced security. Setup, limitations, networking considerations, and compatibility with existing workflows.
Leverage Docker BuildKit for faster, more efficient image builds. Cache mounts, secret mounts, SSH forwarding, and parallel build stages.
Deploy a private Docker registry for your organization. TLS configuration, authentication, garbage collection, and high-availability registry setups.
Compare Docker Swarm and Kubernetes for container orchestration. Complexity, scalability, ecosystem, learning curve, and recommendations by team size.
Learn Docker Swarm from initialization to production deployment. Cluster setup, service management, scaling, networking, and stack deployments step by step.
Build, test, scan, push, deploy. GitHub Actions and GitLab CI examples. Registry management and rolling updates.
Multi-stage builds, distroless images, Alpine base, .dockerignore, layer caching, and practical optimization examples.
Secure your Docker environment with proper access control. Docker socket security, user roles, permissions, and audit logging.
Set up Prometheus, Grafana, and cAdvisor to monitor your containers. Understand key metrics and configure alerting.
Environment variables vs secrets, Docker Swarm secrets, HashiCorp Vault, SOPS, and runtime injection strategies.
Volume types, named vs bind mounts, NFS drivers, backup strategies, permission issues, and tmpfs for sensitive data.
Step-by-step: deploy usulnet, configure your first node, launch containers, and harden security — all in under a minute.
Compare Traefik, Nginx, and Caddy as reverse proxies. Full configuration examples with automatic SSL/TLS and service discovery.
Cost, control, security, compliance, performance, and maintenance compared. A decision matrix to help you choose.
Non-root users, read-only filesystems, capabilities, seccomp profiles, AppArmor, network policies, and image signing.
Understand Docker network types, when to use each, DNS resolution, multi-host networking, and troubleshooting common issues.
Health checks, resource limits, logging, secrets management, restart policies, and more — production-grade Docker Compose configurations.
Docker log drivers, ELK stack, Loki + Grafana, structured logging, and log rotation — everything for production logging.
Export stacks, recreate configurations, feature mapping table, and practical tips for a smooth migration.
Backup methods for Docker volumes, database containers, and configurations. Automated backup scripts and restore testing.
Configure --memory, --cpus, I/O limits. Understand cgroups v2, OOM killer behavior, and real-world sizing strategies.
Learn how to scan Docker images for vulnerabilities using Trivy, Grype, and Snyk. Integrate scanning into your CI/CD pipeline.
HEALTHCHECK instruction, custom health scripts, orchestrator integration, restart policies, and debugging unhealthy containers.
Design distributed Docker environments with Docker Swarm, remote agents, and SSH-based management. Networking and service discovery.
A detailed comparison of Portainer alternatives including usulnet, Yacht, Dockge, and Lazydocker — features, pricing, and use cases.
Everything you need to know about managing Docker containers on your own infrastructure — benefits, platform choices, setup, and security considerations.
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