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Course Outline
VPN Fundamentals and Architecture
- Types of VPNs: 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
WireGuard Protocol Deep Dive
- WireGuard design principles and architecture
- Cryptokey routing and endpoint management
- Performance and simplicity: WireGuard vs traditional VPNs
- 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
- OpenVPN cipher and HMAC configuration
- Requirements for legacy enterprise support
WireGuard Server Deployment
- Installation and configuration of the Linux kernel module
- Utilizing WireGuard-tools and the wg-quick utility
- Strategies for key generation and distribution
- Server configuration: interfaces, peers, and routing
- Support for multiple networks and routing tables
- Setup for high availability and load balancing
OpenVPN Server Deployment
- Installation of the OpenVPN package
- Creation of server configuration files
- Setup of Easy-RSA PKI and certificate generation
- TLS key generation for control channel security
- Client configuration templates
- Service integration and startup configuration
Client Configuration Management
- Setting up WireGuard clients on Linux, Windows, macOS, and mobile devices
- Configuring OpenVPN clients: OpenVPN Connect, Tunnelblick
- Generation and distribution of configuration files
- QR code configuration for mobile devices
- Setup of split tunneling
- Prevention and configuration of DNS leaks
Authentication and Authorization
- Certificate-based authentication for WireGuard and OpenVPN
- Integration of LDAP/Active Directory with OpenVPN
- RADIUS authentication for enterprise integration
- Integration of two-factor authentication (TOTP, hardware tokens)
- Options for OAuth and SAML integration
- Implementation of role-based access control
Site-to-Site VPN Configuration
- Hub-and-spoke vs full mesh topologies
- WireGuard site-to-site with persistent keepalive
- OpenVPN site-to-site with shared keys and certificates
- Dynamic routing over VPN tunnels (BGP, OSPF)
- Failover and redundancy patterns
- NAT traversal and firewall traversal
Advanced WireGuard Features
- wg-easy and web-based management tools
- Integrating WireGuard with containers and Kubernetes
- Setting up a WireGuard road warrior for roaming clients
- Using pre-shared keys for additional security
- Deploying 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
- Using Irwins system and floating IPs
- Bridging and Ethernet over IP configurations
- Compression and performance tuning
- Plugins and scripting
Network Security and Firewall Integration
- Firewall rules for VPN servers
- Integration with iptables/nftables
- Traffic filtering and access control policies
- Implementation of 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
- Alerting on connection anomalies
- SIEM integration for security monitoring
Scalability and High Availability
- Loading balancing VPN connections
- Active-passive and active-active HA configurations
- Handling session persistence and reconnection
- Deploying geo-distributed VPN servers
- Capacity planning and performance testing
- Disaster recovery strategies
Management and Automation Tools
- Automated user provisioning and deprovisioning
- Configuration management using Ansible, Puppet, Chef
- API-based management solutions
- Self-service portals for certificate management
- Policy-based deployment automation
Troubleshooting and Maintenance
- Addressing common WireGuard issues and solutions
- Methodology for OpenVPN troubleshooting
- Connection debugging and packet capture
- Identifying performance bottlenecks
- Certificate and key management lifecycle
- Upgrade procedures and backward compatibility
Migration from Commercial VPNs
- Assessing candidates for commercial VPN replacement
- Planning migration and phased cutover
- User training and documentation
- Managing hybrid operations during transition
- Rollback strategies
- Lessons learned and best practices
Summary and Deployment Checklist
- Production deployment checklist
- Best practices for security hardening
- Documentation requirements
- Ongoing maintenance considerations
Requirements
- Fundamental understanding of TCP/IP networking and subnetting
- Hands-on experience with Linux system administration
- Knowledge of PKI (Public Key Infrastructure) and certificate concepts
- Familiarity with firewall and routing principles
- Basic grasp of encryption and cryptographic principles
Audience
- Network Security Engineers
- System Administrators managing remote access
- DevOps Engineers building secure infrastructure
- IT Administrators responsible for workforce connectivity
21 Hours
Testimonials (1)
communication, knowledge from experience, solve problems,
