Professional Network Infrastructure Management
Your network is the foundation of your IT infrastructure. With proven experience migrating production networks (OpenVPN to WireGuard) and managing enterprise firewalls, I design and maintain network infrastructure that is secure, reliable, and efficient.
What I Provide
Network Architecture Design
- Network topology planning
- IP addressing schemes
- VLAN design and segmentation
- Routing strategy
- Security zones
- Redundancy planning
- Scalability design
VPN Solutions
- WireGuard deployment (modern, preferred)
- OpenVPN setup (legacy support)
- Site-to-site VPN
- Remote access VPN
- VPN performance optimization
- Multi-site connectivity
- Encrypted tunnels
Firewall Management
- Firewall configuration and rules
- Security policy implementation
- Access control lists
- Port forwarding
- NAT configuration
- Intrusion prevention
- Rule optimization
Network Security
- Network segmentation
- Security zone enforcement
- Perimeter security
- DDoS protection
- Traffic filtering
- Encryption enforcement
- Security monitoring
Network Monitoring
- Traffic monitoring
- Bandwidth analysis
- Performance monitoring
- Uptime tracking
- Alert configuration
- Network mapping
- Capacity planning
Load Balancing
- Load balancer configuration
- High availability setup
- Traffic distribution
- Health checking
- Failover configuration
- Performance optimization
DNS Management
- DNS server setup
- Zone configuration
- DNSSEC implementation
- GeoDNS setup
- Split DNS
- DNS security
- Monitoring and alerts
Who This Is For
- Growing Organizations: Outgrowing basic network setups
- Security-Conscious Businesses: Need proper network security
- Remote-First Companies: VPN and secure remote access critical
- Multi-Site Operations: Need site connectivity
- Anyone with Network Issues: Performance, security, or reliability concerns
Real-World Network Experience
Production Migrations
- OpenVPN to WireGuard: Complete VPN infrastructure migration
- Network upgrades: Production network improvements
- Firewall migrations: Between different platforms
Enterprise Experience
- VMware infrastructure networking
- Multi-site connectivity
- Enterprise firewalls
- VPN solutions
- Network security
- Performance optimization
Technologies I Work With
VPN Solutions
- WireGuard (preferred - modern, fast, secure)
- OpenVPN (widely compatible, mature)
- IPsec (site-to-site)
- Tinc (mesh networks)
Firewalls
- iptables/nftables (Linux firewall)
- pfSense (open source firewall/router)
- OPNsense (modern fork of pfSense)
- Cloud provider firewalls (AWS Security Groups, Azure NSG)
Network Tools
- HAProxy (load balancing)
- Nginx (reverse proxy, load balancer)
- BIND/Unbound (DNS)
- Prometheus/Grafana (monitoring)
Network Utilities
- tcpdump/Wireshark (packet analysis)
- iperf (performance testing)
- MTR/traceroute (path analysis)
- nmap (network scanning)
Common Network Projects
WireGuard VPN Deployment
- Site-to-site connectivity
- Remote user access
- Encrypted tunnels
- Key management
- Mobile support
- Performance optimization
Firewall Configuration
- Security policy implementation
- Rule optimization
- Traffic filtering
- Port management
- Logging and monitoring
- Compliance requirements
Network Segmentation
- VLAN creation
- Security zones
- Access control
- Inter-VLAN routing
- Firewall rules
- Monitoring
Load Balancer Setup
- High availability
- Traffic distribution
- Health checks
- SSL termination
- Backend configuration
- Monitoring
The Implementation Process
Phase 1: Assessment (1-2 weeks)
- Current network analysis
- Security evaluation
- Performance baseline
- Requirements gathering
- Architecture design
- Migration planning
Phase 2: Design (1-2 weeks)
- Network topology
- IP addressing
- Security zones
- Redundancy plan
- Documentation
- Testing approach
Phase 3: Implementation (2-4 weeks)
- Infrastructure setup
- Configuration
- Security hardening
- Testing
- Documentation
- Team training
Phase 4: Migration (1-2 weeks)
- Parallel running
- Gradual cutover
- Validation
- Performance tuning
- Final cutover
- Post-migration support
Phase 5: Optimization (Ongoing)
- Performance monitoring
- Security updates
- Rule optimization
- Capacity planning
- Continuous improvement
VPN Migration: OpenVPN to WireGuard
Why Migrate:
- Better performance (modern cryptography)
- Simpler configuration
- Faster connection establishment
- Lower overhead
- Better mobile support
- Easier to audit code
Migration Approach:
- Run both in parallel
- Gradual user migration
- Testing and validation
- Phased decommissioning
- Zero-downtime transition
My Experience: Successfully migrated production OpenVPN infrastructure to WireGuard with zero downtime and improved performance.
Network Security Best Practices
Defense in Depth
- Multiple security layers
- Network segmentation
- Firewall rules
- Intrusion detection
- Encryption
- Access control
Least Privilege
- Minimal necessary access
- Role-based rules
- Time-based access
- Regular review
- Audit logging
Monitoring
- Traffic analysis
- Anomaly detection
- Performance tracking
- Security events
- Capacity monitoring
Common Problems I Solve
- Poor VPN Performance: Optimize or migrate to WireGuard
- Firewall Complexity: Simplify and optimize rules
- Security Gaps: Identify and close vulnerabilities
- Network Bottlenecks: Find and resolve performance issues
- Connectivity Issues: Diagnose and fix routing problems
- DDoS Concerns: Implement protection measures
- Compliance Gaps: Meet regulatory requirements
- Scalability: Plan for growth
My Network Philosophy
Security First: Network security is fundamental
Simplicity: Complex is enemy of secure
Monitoring: Can’t secure what you can’t see
Documentation: Critical for troubleshooting
Redundancy: Single points of failure are unacceptable
Performance: Network should not be bottleneck
What Makes This Different
Unlike generic network services:
- Proven migration experience (OpenVPN to WireGuard)
- Security-focused approach
- Performance optimization
- Personal attention
- Ongoing support
- Knowledge transfer
Advanced Capabilities
Hybrid Cloud Networking
- On-premise to cloud connectivity
- Multi-cloud networking
- VPN to cloud
- Direct connect/ExpressRoute
- Hybrid architecture
SD-WAN Solutions
- Multiple path management
- Intelligent routing
- Bandwidth optimization
- Failover automation
- Performance monitoring
Network Automation
- Configuration management
- Automated deployments
- Policy enforcement
- Compliance checking
- Change tracking
Security Monitoring
- Intrusion detection
- Traffic analysis
- Anomaly detection
- Security event correlation
- Threat intelligence
Business Benefits
Reliability: Redundant, well-designed networks
Security: Proper segmentation and firewalling
Performance: Optimized for your needs
Scalability: Grows with your business
Compliance: Meets regulatory requirements
Remote Access: Secure VPN for remote workers
Cost Efficiency: Right-sized infrastructure
Network Documentation
What I Document:
- Network topology diagrams
- IP addressing schemes
- VLAN assignments
- Firewall rules
- VPN configurations
- Access control lists
- Monitoring setup
- Troubleshooting procedures
Monitoring & Alerting
Key Metrics:
- Bandwidth utilization
- Packet loss
- Latency
- Connection counts
- Firewall blocks
- VPN connections
- Device availability
Alerts:
- Link failures
- High utilization
- Security events
- Performance degradation
- Configuration changes
- Capacity thresholds
Team Enablement
I don’t just configure networks—I enable your team:
- Network documentation
- Troubleshooting guides
- Common tasks training
- Security best practices
- Change procedures
- Emergency response
Ongoing Support
Regular Maintenance
- Security updates
- Configuration review
- Performance monitoring
- Capacity planning
- Documentation updates
- Security audits
As-Needed Support
- Troubleshooting
- Configuration changes
- Performance optimization
- Security incidents
- Expansion planning
Investment in Network Infrastructure
Network infrastructure is too critical to leave to chance. With proven experience migrating production networks and managing enterprise networking, your network will be secure, reliable, and optimized for your needs.
This isn’t about basic router configuration—it’s about applying enterprise networking expertise to build infrastructure that supports your business securely and reliably.