Chapter 36 Access Control
XS3900-48F User’s Guide
288
2
Encryption Method
Once the identification is verified, both the client and server must agree on the type of encryption
method to use.
3
Authentication and Data Transmission
After the identification is verified and data encryption activated, a secure tunnel is established
between the client and the server. The client then sends its authentication information (user name
and password) to the server to log in to the server.
36.5.1.1 SSH Implementation on the Switch
Your Switch supports SSH version 2 using RSA authentication and three encryption methods (DES,
3DES and Blowfish). The SSH server is implemented on the Switch for remote management and file
transfer on port 22. Only one SSH connection is allowed at a time.
36.5.1.2 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.
36.5.2 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.
Authenticating client certificates is optional and if selected means the SSL-client must send the
Switch a certificate. You must apply for a certificate for the browser from a Certificate Authority
(CA) that is a trusted CA on the Switch.
Please refer to the following figure.
1
HTTPS connection requests from an SSL-aware web browser go to port 443 (by default) on the
Switch’s WS (web server).
Summary of Contents for XS-3900-48F
Page 15: ...15 PART I User s Guide ...
Page 16: ...16 ...
Page 48: ...Chapter 2 Tutorials XS3900 48F User s Guide 48 ...
Page 62: ...Chapter 4 The Web Configurator XS3900 48F User s Guide 62 ...
Page 63: ...63 PART II Technical Reference ...
Page 64: ...64 ...
Page 227: ...Chapter 26 VLAN Mapping XS3900 48F User s Guide 227 ...
Page 320: ...Appendix A Common Services XS3900 48F User s Guide 320 ...
Page 332: ...Index XS3900 48F User s Guide 332 ...