Management & Recovery

Articles

• Cannot connect to VPS via SSH: troubleshooting steps

  Fix common SSH issues on your VPS: wrong IP/port, firewall blocks, SSH service down, and authentication errors (password/key). Includes quick tests and commands.

  • 20.02.2026 00:57
  • • Access & Credentials
    • Management & Recovery
    • VPS (Cloud)
  • • login
    • ssh
    • troubleshooting
    • vps

• Install a free Let’s Encrypt SSL certificate on your VPS with Certbot (Nginx/Apache)

  Need HTTPS on your VPS? This guide explains the prerequisites (DNS + open ports) and the standard way to install a Let’s Encrypt certificate using Certbot for Nginx or Apache, including auto-renewal checks.

  • 20.02.2026 00:58
  • • Management & Recovery
    • VPS (Cloud)
  • • let's encrypt
    • ssl
    • vps

• Open firewall ports on your VPS (Linux and Windows)

  Allow inbound connections on your VPS by opening ports in UFW/firewalld (Linux) or Windows Defender Firewall, without locking yourself out.

  • 20.02.2026 00:57
  • • Management & Recovery
  • • firewall
    • security
    • vps

• Basic security hardening for a Linux VPS (SSH keys, firewall, updates)

  A new VPS should be hardened before going live. This checklist covers the most important steps: updates, a non-root sudo user, SSH keys, firewall rules, and safe ways to avoid locking yourself out.

  • 20.02.2026 00:58
  • • Access & Credentials
    • Management & Recovery
    • VPS (Cloud)
  • • firewall
    • security
    • ssh
    • vps

• Plesk license expired or invalid: troubleshooting on a VPS

  If Plesk shows a license error (expired/invalid), you can usually fix it by retrieving keys or reinstalling the license with your activation code. This guide explains the steps and the most common reasons.

  • 20.02.2026 00:58
  • • Add-ons & Licenses
    • Management & Recovery
  • • license
    • plesk
    • troubleshooting
    • vps

• Enable automatic security updates on an Ubuntu/Debian VPS (unattended-upgrades)

  Enable unattended-upgrades to automatically install security updates and learn where to check logs.

  • 20.02.2026 00:58
  • • Management & Recovery
    • VPS (Cloud)
  • • security
    • software update
    • vps

• Extend VPS disk space after an upgrade (Linux/Windows)

  Step-by-step to extend disk space inside a VPS after upgrade (grow partition + resize filesystem, Linux/Windows).

  • 20.02.2026 00:57
  • • Management & Recovery
    • VPS (Cloud)
  • • performance
    • vps

• Install Docker on a Linux VPS (Ubuntu/Debian)

  Install Docker Engine and Docker Compose plugin on Ubuntu/Debian using the official Docker repository.

  • 20.02.2026 00:58
  • • Management & Recovery
    • VPS (Cloud)
  • • deployment
    • troubleshooting
    • vps

• Install Fail2ban to protect SSH on your Linux VPS (Ubuntu/Debian)

  Fail2ban helps block brute-force login attempts by banning IPs after repeated failures. This guide shows how to install Fail2ban on a Linux VPS and enable the sshd jail safely.

  • 20.02.2026 00:58
  • • Management & Recovery
    • VPS (Cloud)
  • • firewall
    • security
    • ssh
    • vps

• Activate a Plesk license purchased from GARMTECH

  Find your Plesk activation code in My.GARMTECH and install it in Plesk (Tools & Settings → License Management). Includes renewal refresh tips.

  • 20.02.2026 00:57
  • • Add-ons & Licenses
    • Management & Recovery
    • My.GARMTECH (Client Area)
    • VPS (Cloud)
  • • billing
    • license
    • my.garmtech
    • plesk