Practical guides on VPN infrastructure, server automation, and self-hosted networking from the TunnelFleet team.
How site-to-site VPNs connect entire networks—routing, gateways, protocol choices, and the operational patterns that keep multi-site overlays reliable.
A technical comparison of VPNs and proxies: OSI layers, encryption, routing scope, and which tool fits remote access, egress control, or simple HTTP forwarding.
A clear explanation of virtual private servers: how virtualization works, how a VPS differs from shared hosting and bare metal, and why teams run VPN software on them.
Learn how cloud-init bootstraps cloud VMs on first boot: user-data, modules, networking, and why it is the foundation for repeatable VPS provisioning.
A practical introduction to IKEv2 and IPsec: how key exchange works with ESP, why mobile clients like it, and what to plan before deploying it yourself.
A practical overview of OpenVPN: how TLS-based tunnels work, when TCP vs UDP matters, and what operators should know before running it on a VPS.
A practical introduction to WireGuard: how it works, why teams adopt it for self-hosted VPN infrastructure, and what you need to know before deploying your first tunnel.