Chapter 25 Access Control
25.6 SSH Implementation
Your switch supports SSH versions 1 and 2 using RSA and DSA authentication and five encryption methods (AES, 3DES, RC4, Blowfish and CAST). The SSH server is implemented on the switch for remote management and file transfer on port 22 (by default). Up to four SSH connections are allowed at a time.
25.6.1 Requirements for Using SSH
You must install an SSH client program on a client computer (Windows or Linux operating system) that is used to connect to the switch over SSH.
25.7 Introduction to HTTPS
HTTPS (HyperText Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web protocol that encrypts and decrypts web pages. Secure Socket Layer (SSL) is an application- level protocol that enables secure transactions of data by ensuring confidentiality (an unauthorized party cannot read the transferred data), authentication (one party can identify the other party) and data integrity (you know if data has been changed).
It relies upon certificates, public keys, and private keys.
HTTPS on the switch is used so that you may securely access the switch using the web configurator. The SSL protocol specifies that the SSL server (the switch) must always authenticate itself to the SSL client (the computer which requests the HTTPS connection with the switch), whereas the SSL client only should authenticate itself when the SSL server requires it to do so.
Please refer to the following figure.
1HTTPS connection requests from an
2HTTP connection requests from a web browser go to port 80 (by default) on the switch’s WS (web server).
Figure 100 HTTPS Implementation
"If you disable HTTP in the Service Access Control screen, then the switch blocks all HTTP connection attempts.
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