VPN for Remote Access: Finding the Right Approach
Remote access has transformed from occasional necessity to everyday reality. People work from home, from coffee shops, from client sites. They need to access internal resources securely from wherever they happen to be.
VPN technology has existed for decades, but the landscape keeps evolving. Making the right choice requires understanding what each option actually delivers.
Understanding VPN Basics
VPN creates encrypted tunnels between remote users and your network. Traffic that would otherwise traverse the public internet unprotected instead flows through secure connections.
The encryption protects data in transit. Someone monitoring your coffee shop wifi sees encrypted traffic to a VPN endpoint, not your actual application data.
Traditional VPN Approaches
IPsec has been the enterprise standard for decades. Strong encryption, wide compatibility, proven security.
SSL VPN emerged as an alternative requiring only a web browser. No client installation in some cases. Easier deployment.
WireGuard represents the newer generation. Simpler protocol, smaller codebase, excellent performance.
Zero Trust Network Access
Zero Trust Network Access represents a philosophical shift. Instead of connecting users to networks, ZTNA connects users to specific applications.
Traditional VPN says you are connected to the network so you can reach everything on it. ZTNA says you are authenticated for this specific application so you can access only that.
The security improvement is significant. Blast radius shrinks considerably.
If you need help designing remote access for your organisation, contact us through our contact page.
## Choosing the Right VPN Pattern
Most organisations mix three patterns:
1. **Remote access VPN** for staff (device to gateway). 2. **Site-to-site VPN** for branch connectivity (gateway to gateway). 3. **Application-level access** (often via ZTNA) for specific internal apps.
If your goal is “secure access to a handful of web apps”, do not default to a full network tunnel. Application access reduces blast radius.
## Hardening Checklist
- Use **MFA** for all remote access.
- Enforce **device posture** (managed device, encryption enabled, up to date patches) where possible.
- Prefer **modern protocols** (WireGuard / IKEv2) and disable legacy ciphers.
- Apply **split tunnelling deliberately**: it can improve performance but must be paired with endpoint security and DNS controls.
- Log **authentication, session start/stop, and access decisions** into your SIEM.
## Operational Reality
VPN capacity planning is often missed. Measure concurrent users, peak hour patterns, and bandwidth per user. If performance is poor, users will bypass controls, which becomes a security incident waiting to happen.
## Choosing the Right VPN Pattern
Most organisations mix three patterns:
1. **Remote access VPN** for staff (device to gateway). 2. **Site-to-site VPN** for branch connectivity (gateway to gateway). 3. **Application-level access** (often via ZTNA) for specific internal apps.
If your goal is “secure access to a handful of web apps”, do not default to a full network tunnel. Application access reduces blast radius.
## Hardening Checklist
- Use **MFA** for all remote access.
- Enforce **device posture** (managed device, encryption enabled, up to date patches) where possible.
- Prefer **modern protocols** (WireGuard / IKEv2) and disable legacy ciphers.
- Apply **split tunnelling deliberately**: it can improve performance but must be paired with endpoint security and DNS controls.
- Log **authentication, session start/stop, and access decisions** into your SIEM.
## Operational Reality
VPN capacity planning is often missed. Measure concurrent users, peak hour patterns, and bandwidth per user. If performance is poor, users will bypass controls, which becomes a security incident waiting to happen.