Service

Linux Server Setup & Hardening

Ubuntu, Debian, and RHEL-family servers — hardened SSH, firewalls, NGINX/Caddy, Docker, databases, backups, monitoring, and runbooks your team can operate.

  • Ubuntu
  • Debian
  • NGINX
  • Caddy
  • Docker
  • PostgreSQL
  • MySQL
  • pfSense
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Why Varnox

What you can expect

  • 01

    SSH key-only auth, minimal ports, fail2ban, and tested unattended-upgrade policy

  • 02

    Reverse proxy plus Docker Compose stacks that separate services cleanly

  • 03

    Verified backups, basic alerting, and written restore procedures

Full scope

Everything in this lane

High-level checklist of what we cover — scoped and priced per project, not all at once unless you ask.

Baseline & hardening

  • Ubuntu LTS, Debian, or RHEL-family installs on AWS, Hetzner, DigitalOcean, or on-prem VMs
  • SSH hardening, sudo model, fail2ban or equivalent, and automatic security updates
  • Firewall (ufw, nftables) with documented open ports and change process
  • Time sync, logging, log rotation, and disk space alerting
  • Non-root service accounts and least-privilege file permissions

Web & application stack

  • NGINX or Caddy reverse proxy, TLS termination, and HTTP/2/3 where supported
  • Docker and Docker Compose for app, worker, and database containers
  • PHP-FPM, Node, Python (Gunicorn/Uvicorn), or static site hosting as required
  • PostgreSQL, MySQL/MariaDB, Redis — install, backup hooks, and connection limits
  • Staging vs production separation and environment variable management

Network & edge

  • pfSense or business-router coordination when you run your own edge
  • VPN endpoint co-location with app servers when architecture requires it
  • DNS records, subdomains, and split internal vs public services

Backups & monitoring

  • Scheduled backups (filesystem, DB dumps) to S3 or secondary storage
  • Restore drills documented with RTO/RPO notes appropriate to your size
  • Uptime checks, basic Prometheus/node_exporter, or Uptime Kuma when agreed
  • Alert routing to email or chat with escalation guidance

Documentation & takeover

  • Runbook: access model, ports, services, backup/restore, common commands
  • Takeover assessments on existing servers with snapshot before changes
  • Handoff suitable for your team or a future contractor without guesswork

Delivery

How we deliver it

Clear communication, documented changes, and pragmatic defaults — so you are never guessing what happens next.

  • A good server is boring: it patches, logs usefully, and alerts before small problems become outages. We build for operability, not one-time heroics.

  • Every engagement includes documentation so you are not locked to a single vendor for routine tasks.

FAQ

Common questions

About Linux servers — ask us anything on the contact form if you do not see your scenario.

Most asked

Most commonly Ubuntu and Debian LTS; RHEL-family where required. Baseline packages, unattended upgrades, and documented patch policy are part of every build.
Yes — via Docker or native stacks (Gunicorn/Uvicorn, PHP-FPM, Node) depending on the app. Database support includes PostgreSQL and MySQL/MariaDB with backup hooks.
Yes — access model, firewall rules, backup restore drill, and common commands so your team or a future vendor can operate without guessing.
After a read-only assessment and snapshot/backup before changes. Hardening is phased so rollback stays possible.

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