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Course Outline

Fundamentals of VPN Sovereignty

  • Why commercial VPNs log metadata and comply with legal requests.
  • OpenVPN: mature, feature-rich, offering TAP/TUN flexibility.
  • WireGuard: modern, minimal, high-performance cryptography.
  • Selecting the appropriate protocol for your threat model.

OpenVPN Deployment

  • Installing OpenVPN with Easy-RSA PKI.
  • Server configuration: cipher, HMAC, TLS-auth, and topology.
  • Generating and distributing client configurations.
  • Managing revocation and Certificate Revocation Lists (CRL).

WireGuard Deployment

  • Installing the kernel module and WireGuard-tools.
  • Generating keys and configuring peers.
  • Using wg-quick and managing systemd units.
  • Implementing road warrior and site-to-site mesh topologies.

Authentication and Authorisation

  • Certificate-based authentication with OpenVPN.
  • Integrating LDAP and RADIUS backends.
  • Implementing two-factor authentication with TOTP plugins.
  • Configuring access control lists and per-user IP allocation.

Routing and Network Design

  • Routing strategies: full tunnel versus split tunnel.
  • Configuring push routes, DNS, and WINS.
  • Applying NAT and masquerading for egress traffic.
  • Implementing multi-WAN and policy-based routing.

Performance and Scaling

  • Comparing WireGuard and OpenVPN throughput benchmarks.
  • Optimising for multi-core systems and kernel bypass.
  • Load balancing across multiple VPN servers.
  • Implementing DDoS protection and connection rate limiting.

Monitoring and Maintenance

  • Logging connections and accounting for bandwidth usage.
  • Integrating Syslog and Prometheus exporters.
  • Automating certificate renewal and setting expiration alerts.
  • Establishing disaster recovery plans and configuration backups.

Requirements

  • Intermediate knowledge of Linux networking and firewall administration.
  • Understanding of PKI, certificates, and encryption protocols.
  • Familiarity with routing, NAT, and IP forwarding.

Target Audience

  • Network administrators replacing commercial VPN services.
  • Remote work teams requiring sovereign, secure access.
  • Organisations operating in regions with VPN blocking or surveillance.
 14 Hours

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