WireGuard VPS Docker Hosting

WireGuard is a free, open-source VPN protocol that creates encrypted tunnels between peers using public-key cryptography on the wire. It runs in the Linux kernel as a kernel module since the 5.6 release in March 2020 and ships userspace clients for Windows, macOS, iOS, and Android phones and tablets. The codebase is around 4,000 lines, against hundreds of thousands of lines for OpenVPN or IPsec implementations, which makes it much easier to audit and analyze the security of than legacy VPN protocols.

WireGuard uses modern, audited cryptography for the wire: ChaCha20 for symmetric encryption, Poly1305 for authentication, Curve25519 for key exchange, BLAKE2s for hashing, and HKDF for key derivation. The roughly 4,000-line codebase is small enough to audit at a sitting, against the hundreds of thousands of lines in OpenVPN or IPsec implementations. The protocol supports perfect forward secrecy, with new session keys derived from ephemeral Diffie-Hellman exchanges, so capturing one session does not let an attacker decrypt other sessions.

On speed, handshake latency, and mobile battery life, independent benchmarks put WireGuard at roughly 2 to 4 times the throughput of OpenVPN on the same hardware. The handshake completes in under 100 milliseconds against several seconds for OpenVPN over TLS. CPU use sits at around 15 percent against 65 percent at 500 Mbps, and Android battery drain is roughly 4 percent against 12 percent in a 2-hour test. OpenVPN remains more configurable on cipher choice and TCP fallback for restrictive networks.

Self-hosting is the standard deployment shape for WireGuard outside commercial VPN providers. The two common paths are running wg-quick from the command line with hand-edited config files, or running wg-easy, a Docker container that gives the operator a web admin UI for peer management. A server with a publicly routable endpoint and an open UDP 51820 port is the precondition, which is what a VPS with a static public IPv4 address gives the operator right at install time.

Provision a Linux VPS with a public IPv4 address, open UDP 51820 inbound on the firewall, install WireGuard, or run wg-easy through Docker. The operator generates server and peer keys, writes or generates the config file, and starts the interface through wg-quick or systemd. wg-easy reduces the end-to-end install to a single Docker run command and a web dashboard for peer management. The cleanest end state is a wg-easy container behind a reverse proxy on HTTPS for the admin panel itself.

WireGuard is free and open-source software, licensed under GPLv2 in the Linux kernel implementation. There are no licensing fees to run a WireGuard server, no per-peer charges, and no premium tier for any feature in the protocol. The userspace clients on Windows, macOS, iOS, and Android are also free, with apps published in the official platform stores. The wg-easy web wrapper is open source as well, distributed as a Docker image on GitHub that the operator runs at no cost.

Peers exchange public keys, similar in shape to SSH keys, then communicate over UDP on port 51820 by default. Each side has an AllowedIPs list that doubles as a routing table when sending and as an access control list when receiving. WireGuard installs into the Linux kernel as a module for maximum throughput, with userspace clients on other platforms. The handshake completes in under 100 milliseconds, and the latest valid handshake wins, which is what makes roaming across networks feel transparent.

Very little RAM is needed. Working installs have been reported on Debian VPS instances with as little as 64 MB to 128 MB of RAM, with swap configured. For a personal server handling three or four concurrent peers, 1 GB of RAM is comfortable and leaves headroom for the wg-easy admin UI and a reverse proxy in front of the admin panel. The WireGuard protocol idles at near-zero CPU and RAM use, which is what makes small VPS plans viable for it.

wg-easy is an open-source Docker image that wraps WireGuard with a web admin UI for peer management. The dashboard creates, edits, enables, disables, and deletes peers, downloads client configs, and shows QR codes for mobile setup over the camera. The v15 release in 2025 added IPv6 support, TOTP two-factor authentication on the admin panel, per-client firewall rules, one-time invite links, client expiration, Prometheus metrics for monitoring, dark and light mode themes, and a multi-language UI for community translations of the interface.

AllowedIPs is the list of IP ranges a peer is allowed to send or receive traffic for. Setting it to 0.0.0.0/0 creates a full tunnel where every byte of internet traffic from the client rides the VPN. Setting it to specific subnets creates a split tunnel where only those subnets ride the VPN and the rest of the traffic goes out the local connection directly. The field doubles as a routing table when sending and as an access control list when receiving on the other side.