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Course Outline
VPN Fundamentals and Architecture
- VPN categories: remote access, site-to-site, client-to-site
- Comparison of VPN protocols: WireGuard, OpenVPN, IPsec, SSTP
- Cryptographic foundations: symmetric and asymmetric encryption
- PKI and certificate management for VPNs
- Network architecture considerations for enterprise VPNs
Deep Dive into the WireGuard Protocol
- WireGuard design principles and architecture
- Cryptokey routing and endpoint management
- WireGuard vs. traditional VPNs: performance and simplicity
- Protocol security analysis and formal verification
- Platform support and client availability
OpenVPN Architecture and Modes
- Overview of the OpenVPN protocol: SSL/TLS-based VPN
- TUN vs. TAP device modes
- Considerations for UDP vs. TCP transport
- Layer 2 and Layer 3 VPN configurations
- Configuring OpenVPN ciphers and HMAC
- Requirements for legacy enterprise support
Deploying a WireGuard Server
- Installing and configuring the Linux kernel module
- Using WireGuard-tools and the wg-quick utility
- Strategies for key generation and distribution
- Server configuration: interfaces, peers, and routing
- Supporting multiple networks and routing tables
- Setting up high availability and load balancing
Deploying an OpenVPN Server
- Installing the OpenVPN package
- Creating server configuration files
- Setting up Easy-RSA PKI and generating certificates
- Generating TLS keys for control channel security
- Creating client configuration templates
- Service integration and startup configuration
Managing Client Configuration
- Setting up WireGuard clients: Linux, Windows, macOS, mobile
- Configuring OpenVPN clients: OpenVPN Connect, Tunnelblick
- Generating and distributing configuration files
- Configuring mobile devices via QR code
- Configuring split tunneling
- Preventing and configuring DNS leaks
Authentication and Authorization
- Certificate-based authentication (WireGuard and OpenVPN)
- Integrating LDAP/Active Directory with OpenVPN
- RADIUS authentication for enterprise integration
- Integrating two-factor authentication (TOTP, hardware tokens)
- Exploring OAuth and SAML integration options
- Implementing role-based access control
Configuring Site-to-Site VPNs
- Hub-and-spoke vs. full mesh topologies
- WireGuard site-to-site with persistent keepalive
- OpenVPN site-to-site using shared keys and certificates
- Dynamic routing over VPN tunnels (BGP, OSPF)
- Failover and redundancy patterns
- NAT traversal and firewall traversal
Advanced WireGuard Features
- Using wg-easy and web-based management tools
- WireGuard with containers and Kubernetes
- Setting up WireGuard road warriors with roaming clients
- Enhancing security with pre-shared keys
- WireGuard in restricted network environments
- Multi-hop and cascading configurations
Advanced OpenVPN Features
- Overview of OpenVPN Access Server
- Client-specific configuration and CCD files
- Pushing configurations and routes to clients
- Irwins system and floating IPs
- Bridging and Ethernet over IP configurations
- Compression and performance tuning
- Plugins and scripting
Network Security and Firewall Integration
- Defining firewall rules for VPN servers
- Integrating iptables/nftables
- Traffic filtering and access control policies
- Implementing kill switches for clients
- Intrusion detection on VPN traffic
- DDoS protection for VPN endpoints
Monitoring and Logging
- Monitoring WireGuard status and peers
- Analyzing OpenVPN status and logs
- Tracking connections and user activity
- Integrating Prometheus/Grafana for VPN metrics
- Setting alerts for connection anomalies
- Integrating SIEM for security monitoring
Scalability and High Availability
- Load balancing VPN connections
- Active-passive and active-active HA configurations
- Handling session persistence and reconnections
- Geo-distributed VPN servers
- Capacity planning and performance testing
- Disaster recovery strategies
Management and Automation Tools
- Automating user provisioning and deprovisioning
- Configuration management (Ansible, Puppet, Chef)
- API-based management solutions
- Self-service portals for certificate management
- Policy-based deployment automation
Troubleshooting and Maintenance
- Common WireGuard issues and solutions
- OpenVPN troubleshooting methodology
- Connection debugging and packet capture
- Identifying performance bottlenecks
- Managing the certificate and key lifecycle
- Upgrade procedures and backward compatibility
Migrating from Commercial VPNs
- Evaluating candidates for replacing commercial VPNs
- Planning migration and phased cutover
- User training and documentation
- Hybrid operation during transition
- Rollback strategies
- Lessons learned and best practices
Summary and Deployment Checklist
- Production deployment checklist
- Best practices for security hardening
- Documentation requirements
- Considerations for ongoing maintenance
Requirements
- Familiarity with TCP/IP networking and subnetting
- Experience with Linux system administration
- Understanding of PKI and certificate concepts
- Knowledge of firewall and routing principles
- Basic grasp of encryption and cryptographic fundamentals
Target Audience
- Network Security Engineers
- System Administrators overseeing remote access
- DevOps Engineers constructing secure infrastructure
- IT Administrators responsible for workforce connectivity
21 Hours
Testimonials (1)
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