Introduction to Host Binding

The host binding function verifies the hosts running SCVPN clients according to their host IDs and user information. The verification process is:

1. When a SCVPN user logs in via the SCVPN client, the client collects the host information of main board serial number, hard disk serial number, CUP ID, and BIOS serial number.
2. Based on the above information, the client performs the MD5 calculation to generate a 32-digit character, which is named host ID.
3. The client sends the host ID and user/password to the SCVPN server.
4. The SCVPN server verifies the host according to the entries in the candidate list and binding list, and deal with the verified host according to the host binding configuration.

The candidate list and binding list are describes as follows:

• Candidate list: The candidate list contains the user-host ID entries for the first-login users.
• Binding list: The binding list contains the user-host ID entries for the users who can pass the verification. The entries in the candidate list can be moved to the binding list manually or automatically for the first login. When a user logs in, the SCVPN server will check whether the binding list contains the user-host ID entry of the login user. If there is the matched entry in the binding list, the user will pass the verification and the sever will go on checking the user/password. If there is no matched entry for the login user, the connection will be disconnected.