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wireguard

AI security interview questions tagged wireguard, across every topic.

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Concepts behind "wireguard"

Explanations of the mechanisms these questions rely on.

Core
Network SecuritySign in
How Tunnels and VPNs WorkA tunnel carries one packet inside another; a VPN adds authentication and encryption so the inner packet crosses untrusted networks safely. IPsec negotiates keys with IKE and protects packets with ESP; WireGuard binds static public keys to allowed address ranges with a one-round-trip handshake; TLS VPNs ride over port 443. All of them authenticate who connected and then deliver packets onto a network, so what a client can reach is decided by policy behind the gateway. Leaks (DNS, IPv6, local routes), gateway vulnerabilities and broad post-connect access are where real failures happen.
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