Defense Against Active Probing by Network Filters
Provider network analyzers send return requests (Active Probing) to a suspicious address to provoke a response from the VPN server and identify its signature. The ShadowTLS architecture is designed so that any verification packets from censors are forwarded to a real trusted server, confirming its legitimacy and preventing it from being blacklisted.
Deployment and Configuration Recommendations
- Choose foreign resources without regional blocks as the handshake target
- Use up-to-date Sing-box or Mihomo core versions with built-in support for ShadowTLS version 3
- Configure strict control over session key lifespans to prevent repeated traffic analysis
- Combine the ShadowTLS transport with Shadowsocks 2022 protocols to enhance cryptographic strength