WireGuard Key Rotation Checklist for Multi-Peer Network Setups

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Rotating WireGuard keys in hub-and-spoke or partial-mesh networks is an operational process, since WireGuard has no built-in expiry, revocation, or rotation mechanism. Each peer's public key serves as its identity, and a single AllowedIPs range maps to only one peer, which complicates running old and new keys in parallel. The guide recommends maintaining a peer inventory, defining scheduled and event-driven rotation triggers, and generating keys directly on each peer so private keys never leave the device. Administrators should back up existing configurations, verify handshakes after changes, persist updates to config files, and remove obsolete public keys from every host. The checklist is aimed at Linux deployments using wg and wg-quick, though its principles apply to other implementations.

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