July 12, 2026 · Docker HQ Team
SSH Key vs Password Authentication: Which Should You Use?
SSH key vs password authentication: why keys beat passwords for almost every server login, when passwords still make sense, and how to set up key auth.
Docker HQThe Docker HQ blog
Practical guides on running, monitoring, and securing Docker on remote servers, plus how to do it from your phone.
July 12, 2026 · Docker HQ Team
How to SSH Into a Server From Your Phone
SSH into any server from your phone using a terminal app, an SSH key, and the server's IP. Here's the exact setup, the commands, and the security steps.
July 12, 2026 · Docker HQ Team
How to Secure the Docker Remote API
The safest way to secure the Docker remote API is to not expose it over TCP at all. Use an SSH tunnel, or if you must open a port, require mutual TLS.
July 12, 2026 · Docker HQ Team
How to Schedule Automatic Docker Volume Backups
Schedule Docker backups with a small shell script and a cron job that tars each named volume through a throwaway container, then verify and prune old copies.
July 12, 2026 · Docker HQ Team
How to Run a Docker Container as a Non-Root User
Run a Docker container as a non-root user using the USER instruction, the --user flag, and rootless mode. Practical commands, plus fixes for permission errors.
July 12, 2026 · Docker HQ Team
How to Restart a Docker Container Remotely
SSH into your server and run docker restart <name>, or use restart policies and phone-based tools to bring a container back without touching a laptop.
July 12, 2026 · Docker HQ Team
Remote Docker Management Over SSH: A Complete Guide
Manage Docker on remote servers over SSH: run commands, tunnel the daemon socket, use docker context, and secure the whole setup without exposing the API.
July 12, 2026 · Docker HQ Team
How to Reduce Docker Image Size (Techniques That Work)
Practical techniques to reduce Docker image size: slim base images, multi-stage builds, single-layer cleanup, .dockerignore, and measuring what shrank.
July 12, 2026 · Docker HQ Team
Reading Docker Logs on Your Phone: A Practical Guide
Read Docker logs on mobile over SSH with docker logs -f, tail, grep, and journald. Commands, filtering tips, and how to do it fast without a laptop nearby.
July 12, 2026 · Docker HQ Team
How to Prune Docker Images Without Breaking Things
Prune Docker images safely with the right flags, filters, and a dry-run habit so you reclaim disk space without deleting the images or data you still need.
July 12, 2026 · Docker HQ Team
How to Protect SSH Keys on a Mobile Device
Store SSH keys in your phone's Secure Enclave or Keystore, gate them behind biometrics, set a per-key passphrase, and scope each key to a single host.
July 12, 2026 · Docker HQ Team
How to Monitor Docker Container CPU and Memory Usage
Track Docker container CPU and memory with docker stats, cgroup files, and cAdvisor. Live commands, real flags, and how to catch an OOM kill before it happens.
July 12, 2026 · Docker HQ Team
How to Manage a VPS From Your Phone
Manage a VPS from your phone with an SSH client, key-based auth, and a Docker-aware app. Restart services, read logs, and monitor server resources anywhere.
July 12, 2026 · Docker HQ Team
Managing a Private Docker Registry: A Practical Guide
Run and maintain your own private Docker registry: set it up with TLS and auth, push and pull images, run garbage collection, and keep it secure at scale.
July 12, 2026 · Docker HQ Team
How to Manage Multiple Docker Hosts From One Place
Manage multiple Docker hosts from one place using SSH config, Docker contexts, and remote monitoring so you stop juggling terminal tabs and IP addresses.
July 12, 2026 · Docker HQ Team
How to Manage Docker Containers From Your Phone (2026 Guide)
You manage Docker from your phone over SSH: run docker CLI commands in a terminal app or use a mobile client that speaks to the Docker API on the host.
July 12, 2026 · Docker HQ Team
Incident Response When a Docker Host Goes Down
A practical runbook for a docker host down incident: confirm the outage, triage over SSH, recover containers safely, and stop the same failure from recurring.
July 12, 2026 · Docker HQ Team
How to Fix a Docker Container Stuck in a Restart Loop
A Docker container in a restart loop is crashing right after start. Read the exit code and last logs, then fix the config, dependency, or bad command behind it.
July 12, 2026 · Docker HQ Team
Docker vs Podman in 2026: An Honest Comparison
Docker vs Podman in 2026: both run OCI containers but differ on daemons, rootless defaults, pods, and Compose. Here is how to pick the right one for you.
July 12, 2026 · Docker HQ Team
Docker Uptime Monitoring for Small Teams
A practical guide to Docker uptime monitoring for small teams: health checks, restart policies, lightweight tools, and getting alerted before users notice.
July 12, 2026 · Docker HQ Team
The docker stats Command: A Complete Guide
A practical guide to the docker stats command: reading CPU, memory, and network output, formatting it, filtering containers, and its real limitations.
July 12, 2026 · Docker HQ Team
Docker Security Scanning Tools Compared (2026)
A hands-on comparison of Trivy, Grype, Docker Scout, Clair, and Snyk for scanning Docker images, with real commands, honest tradeoffs, and CI pipeline tips.
July 12, 2026 · Docker HQ Team
Docker Security Best Practices for Production
Practical Docker security for production: non-root users, dropped capabilities, image scanning, secrets, daemon socket lockdown, and sane resource limits.
July 12, 2026 · Docker HQ Team
Docker Secrets Management: What Actually Works
A practical guide to Docker secrets management: why environment variables leak, how Swarm and Compose secrets work, BuildKit build-time secrets, and Vault.
July 12, 2026 · Docker HQ Team
How to Run docker ps From Your Phone
Run docker ps on your phone over SSH: format the cramped output for a small screen, filter down to dead containers, and get alerted when a host drops.
July 12, 2026 · Docker HQ Team
Docker Over SSH vs TLS: Which Is Safer?
SSH and TLS both secure remote Docker access. SSH is safer and simpler for most people because it reuses hardening you already have. Here's when to pick each.
July 12, 2026 · Docker HQ Team
Docker Networking Basics Every Developer Should Know
How Docker networking actually works: the bridge, host, and none drivers, container DNS, port publishing, and the commands you need to debug it quickly.
July 12, 2026 · Docker HQ Team
Docker Image Vulnerability Scanning: A Practical Guide
Scan Docker images for CVEs using Trivy, docker scout, and Grype. Learn to gate builds in CI, triage findings by severity, and re-scan the images running now.
July 12, 2026 · Docker HQ Team
Docker Health Checks Explained, With Examples
A Docker health check is a command Docker runs inside a container to confirm the app actually responds. Here's how to write one in Dockerfile and Compose.
July 12, 2026 · Docker HQ Team
Docker for Your Homelab: A Getting-Started Guide
Run your first Docker homelab: install the engine, launch containers with Compose, persist data with volumes, and keep services healthy on cheap hardware.
July 12, 2026 · Docker HQ Team
Docker Exit Code 137 (OOMKilled): Causes and Fixes
Docker exit code 137 means your container was killed by SIGKILL, almost always the Linux OOM killer reclaiming memory. Here is how to confirm it and fix it.
July 12, 2026 · Docker HQ Team
Running docker exec From Your Phone Over SSH
Run docker exec on a remote server from your phone over SSH: drop into a container shell, fix the common TTY error, and patch a live box without a laptop.
July 12, 2026 · Docker HQ Team
Using Docker Context to Manage Remote Hosts
Docker context runs your docker commands against a remote host over SSH without a shell login. Set it up, switch between hosts, and avoid the common traps.
July 12, 2026 · Docker HQ Team
Docker Container Monitoring: A Complete Guide
A practical guide to monitoring Docker containers: metrics that matter, docker stats, health checks, logs, and alerting on failures before users notice.
July 12, 2026 · Docker HQ Team
How to Deploy Docker Compose to a Remote Server
Copy your compose file to a remote server over SSH and run docker compose up -d, or use a Docker context to deploy from your laptop. Full walkthrough.
July 12, 2026 · Docker HQ Team
Docker Container Won't Start? A Debugging Checklist
A practical checklist for when a Docker container won't start: read the exit code, check the logs, fix the config, and get the container back up fast.
July 12, 2026 · Docker HQ Team
How to Clean Up Docker Disk Usage Safely
Reclaim Docker disk space safely: audit usage with docker system df, prune dangling images and stopped containers, and protect named volumes from deletion.
July 12, 2026 · Docker HQ Team
The Best Docker Mobile Apps in 2026, Compared
A practical comparison of the best Docker mobile apps in 2026, covering SSH-based remote management, monitoring, alerts, and what each one actually does well.
July 12, 2026 · Docker HQ Team
How to Back Up Docker Volumes (and Restore Them)
Back up a Docker volume by mounting it into a temporary container and tarring it to the host. Here's how to do it safely, restore it, and move it elsewhere.
July 12, 2026 · Docker HQ Team
How to Get Alerted When a Docker Container Goes Down
Set up reliable Docker container down alerts using restart policies, health checks, and monitoring tools so you know the moment a container stops or fails.