Справочник Пользователя для TP-LINK TL-SG2008

 

22 

4.  It may take more time for https connection than that for http connection, because https 

connection involves authentication, encryption and decryption etc. 

As stipulated by IFTF (Internet Engineering Task Force), SSH (Secure Shell) is a security protocol 
established on application and transport layers. SSH-encrypted-connection is similar to a telnet 
connection, but essentially the old telnet remote management method is not safe, because the 
password and data transmitted with plain-text can be easily intercepted. SSH can provide 
information security and powerful authentication when you log on to the switch remotely through 
an insecure network environment. It can encrypt all the transmission data and prevent the 
information in a remote management being leaked. 

Comprising server and client, SSH has two versions, V1 and V2 which are not compatible with 
each other. In the communication, SSH server and client can auto-negotiate the SSH version and 
the encryption algorithm. After getting a successful negotiation, the client sends authentication 
request to the server for login, and then the two can communicate with each other after successful 
authentication. This switch supports SSH server and you can log on to the switch via SSH 
connection using SSH client software. 

SSH key can be downloaded into the switch. If the key is successfully downloaded, the certificate 
authentication will be preferred for SSH access to the switch. 

Choose the menu System→Access Security→SSH Config to load the following page. 

 

Figure 4-17 SSH Config 

The following entries are displayed on this screen: 

¾

Select Enable/Disable SSH function. 

Select Enable/Disable SSH V1 to be the supported protocol. 

Select Enable/Disable SSH V2 to be the supported protocol.