Chapter 40 Access Control
MES3500 Series User’s Guide
317
Figure 202
How SSH Works
1
Host Identification
The SSH client sends a connection request to the SSH server. The server identifies itself with a host
key. The client encrypts a randomly generated session key with the host key and server key and
sends the result back to the server.
The client automatically saves any new server public keys. In subsequent connections, the server
public key is checked against the saved version on the client computer.
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.
40.7 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.
Summary of Contents for MES3500 Series
Page 16: ...Table of Contents MES3500 Series User s Guide 16 Appendix C Legal Information 357 Index 362...
Page 17: ...17 PART I User s Guide...
Page 72: ...72 PART II Technical Reference...
Page 178: ...Chapter 22 Policy Rule MES3500 Series User s Guide 178 Figure 98 Policy Example EXAMPLE...
Page 360: ...Appendix C Legal Information MES3500 Series User s Guide 360 Environmental Product Declaration...
