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Chapter 5: Using the Web-based Utility for Configuration
SSH Host-Key Settings
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
SSH Host-Key Settings
A host public/private key pair is used to provide secure communications between an SSH client and the Switch.
After generating this key pair, you must provide the host public key to SSH clients and import the client’s public
key to the Switch.
Public-Key of Host-Key. The public key for the host.
• RSA (Version 1): The first field indicates the size of the host key (e.g., 1024), the second field is the encoded
public exponent (e.g., 65537), and the last string is the encoded modulus.
• DSA (Version 2): The first field indicates that the encryption method used by SSH is based on the Digital
Signature Standard (DSS). The last string is the encoded modulus.
Host-Key Type. The key type used to generate the host key pair (i.e., public and private keys). (Range: RSA
(Version 1), DSA (Version 2), Both: Default: RSA) The SSH server uses RSA or DSA for key exchange when the
client first establishes a connection with the Switch, and then negotiates with the client to select either DES (56-
bit) or 3DES (168-bit) for data encryption.
Save Host-Key from Memory to Flash. Saves the host key from RAM (volatile memory) to flash memory.
Otherwise, the host key pair is stored to RAM by default. Note that you must select this item prior to generating
the host-key pair.
Generate. This button is used to generate the host key pair. Note that you must first generate the host key pair
before you can enable the SSH server.
Clear. This button clears the host key from both volatile memory (RAM) and non-volatile memory (Flash).
Figure 5-34: Security - SSH Host-Key Settings