Accton Technology ES4524D, ES4548D, 24/48-Port manual Secure Shell Commands Function Mode, 41-22

Secure Shell Commands 41

Secure Shell Commands

This section describes the commands used to configure the SSH server. Note that you also need to install a SSH client on the management station when using this protocol to configure the switch.

Note: The switch supports both SSH Version 1.5 and 2.0 clients.

Table 41-10 Secure Shell Commands

Command	Function	Mode	Page
ip ssh server	Enables the SSH server on the switch	GC	41-17
ip ssh timeout	Specifies the authentication timeout for the SSH server	GC	41-18
ip ssh	Specifies the number of retries allowed by a client	GC	41-19
authentication-retries
ip ssh server-key size	Sets the SSH server key size	GC	41-19
copy tftp public-key	Copies the user’s public key from a TFTP server to the switch	PE	35-2
delete public-key	Deletes the public key for the specified user	PE	41-20
ip ssh crypto host-key	Generates the host key	PE	41-20
generate
ip ssh crypto zeroize	Clear the host key from RAM	PE	41-21
ip ssh save host-key	Saves the host key from RAM to flash memory	PE	41-21
disconnect	Terminates a line connection	PE	36-9
show ip ssh	Displays the status of the SSH server and the configured values	PE	41-22
	for authentication timeout and retries
show ssh	Displays the status of current SSH sessions	PE	41-22
show public-key	Shows the public key for the specified user or for the host	PE	41-23
show users	Shows SSH users, including privilege level and public key type	PE	34-7

Configuration Guidelines

The SSH server on this switch supports both password and public key authentication. If password authentication is specified by the SSH client, then the password can be authenticated either locally or via a RADIUS or TACACS+ remote authentication server, as specified by the authentication login command on page 41-3.If public key authentication is specified by the client, then you must configure authentication keys on both the client and the switch as described in the following section. Note that regardless of whether you use public key or password authentication, you still have to generate authentication keys on the switch and enable the SSH server.

To use the SSH server, complete these steps:

1.Generate a Host Key Pair – Use the ip ssh crypto host-key generate command to create a host public/private key pair.

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