3Com 4210 9-Port - Comparison of SSH Commands with the same Functions; Displaying and Maintaining SSH Configuration

1-20
To do... Use the command... Remarks
Start the client to
establish a connection
with an SSH server
ssh2 { host-ip | host-name }
[ port-num ] [ identity-key
{ dsa | rsa } | prefer_kex
{ dh_group1 |
dh_exchange_group } |
prefer_ctos_cipher { des |
aes128 } | prefer_stoc_cipher
{ des | aes128 } |
prefer_ctos_hmac { sha1 |
sha1_96 | md5 | md5_96 } |
prefer_stoc_hmac { sha1 |
sha1_96 | md5 | md5_96 } ] *
Required
In this command, you can also specify
the preferred key exchange algorithm,
encryption algorithms and HMAC
algorithms between the server and
client.
HMAC: Hash-based message
authentication code
Note that:
The identity-key keyword is
unnecessary in password
authentication and optional in public
key authentication.
When logging into the SSH server using public key authentication, an SSH client needs to read its local
private key for authentication. As two algorithms (RSA or DSA) are available, the identity-key keyword
must be used to specify one algorithm in order to get the correct private key.
Displaying and Maintaining SSH Configuration
To do... Use the command... Remarks
Display the public key part of the current
switch’s key pairs
display public-key local { dsa |
rsa } public
Display information about locally saved
public keys of SSH peers
display public-key peer [ brief |
name pubkey-name ]
Display SSH status and session information
display ssh server { session |
status }
Display SSH user information
display ssh user-information
[ username ]
Display the mappings between host public
keys and SSH servers saved on a client
display ssh server-info
Available in
any view
Comparison of SSH Commands with the Same Functions
After the SSH protocol supports the DSA asymmetric key algorithm, some SSH configuration
commands are changed. For the sake of SSH configuration compatibility, the original commands are
still supported.
Table 1-18 lists both the original commands and current commands.
Table 1-18 List of SSH configuration commands with the same functions
Operation Original commands Current commands
Display local RSA public
key(s)
display rsa local-key-pair public
display public-key local rsa
public