TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 User Guide - Page 41
SSL Config, Session Timeout, Number Control, Admin Number, Guest Number
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Port: Session Config Session Timeout: Access User Number Number Control; Admin Number: Guest Number: The field can be available for configuration only when Port-based mode is selected. Only the users connected to these ports you set here are allowed for login. If you do nothing with the Web management page within the timeout time, the system will log out automatically. If you want to reconfigure, please login again. Enable/Disable the Number Control function. Enter the maximum number of the users logging on to the Web management page as Admin. Enter the maximum number of the users logging on to the Web management page as Guest. 4.4.2 SSL Config SSL (Secure Sockets Layer), a security protocol, is to provide a secure connection for the application layer protocol (e.g. HTTP) communication based on TCP. SSL is widely used to secure the data transmission between the Web browser and servers. It is mainly applied through ecommerce and online banking. SSL mainly provides the following services: 1. Authenticate the users and the servers based on the certificates to ensure the data are transmitted to the correct users and servers; 2. Encrypt the data transmission to prevent the data being intercepted; 3. Maintain the integrality of the data to prevent the data being altered in the transmission. Adopting asymmetrical encryption technology, SSL uses key pair to encrypt/decrypt information. A key pair refers to a public key (contained in the certificate) and its corresponding private key. By default the switch has a certificate (self-signed certificate) and a corresponding private key. The Certificate/Key Download function enables the user to replace the default key pair. After SSL is effective, you can log on to the Web management page via https://192.168.0.1. For the first time you use HTTPS connection to log into the switch with the default certificate, you will be prompted that "The security certificate presented by this website was not issued by a trusted certificate authority" or "Certificate Errors". Please add this certificate to trusted certificates or continue to this website. The switch also supports HTTPS connection for IPv6. After configuring an IPv6 address (for example, 3001::1) for the switch, you can log on to the switch's Web management page via https://[3001::1]. 31