1) tunnel proxy: encapsulate the data packet converted by the HTTPTunnet program into an HTTP request to penetrate the firewall, and let the http server do anything that TCP can do, which is equivalent to Socks5.

2) Document agent: an agent that can be used to query the database. Through these agents, we can obtain the database resources related to scientific research on the Internet, such as querying the databases of Sciencedirect website (SD for short), academic publishing house, IEEE, SPRINGER and so on.

3) Education network proxy: refers to the local area network of academic education institutions, which enables computers without permission to go abroad or access an IP segment to access related resources through a specific proxy server.

4) Springboard Agent: When applied to springboard program, it can be regarded as a special socks5 agent with dynamic encryption, and can also be directly used in PSD software. Its port is generally 18 13.

5)Ssso proxy: The Ssso program of the proxy client accesses the remote website, which is a super proxy with SSL encryption strength and supports socks.

6) Plane proxy: proxy the flatsurfer program on the client to access the remote website. It has a dedicated proxy for high-intensity encrypted data streams, supports socks, and can set up at most three cascades and a traversal proxy. Its port is generally 6700.

7) SoftEther proxy: Softether program on the proxy client accesses the remote website, and applies the technology of virtual HUB hub and virtual network card. It is a proxy with VPN function and multiple authentication methods, which conforms to the https protocol.