Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 1392)

Secure Shell (SSH) Commands
Software Reference for x310 Series Switches
54.10 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
crypto key pubkey-chain userkey
This command adds a public key for an SSH user on the SSH server. This allows the SSH
server to support public key authentication for the SSH user. When configured, the SSH
user can access the SSH server without providing a password from the remote host.
The no variant of this command removes a public key for the specified SSH user that has
been added to the public key chain. When a SSH user’s public key is removed, the SSH user
can no longer login using public key authentication.
Syntax crypto key pubkey-chain userkey <username> [<filename>]
no crypto key pubkey-chain userkey <username> <1-65535>
Mode Global Configuration
Usage You should import the public key file from the client node. The device can read the data
from a file on the flash or user terminal.
Or you can add a key as text into the terminal. To add a key as text into the terminal, first
enter the command crypto key pubkey-chain userkey <username>, and hit [Enter]. Enter
the key as text. Note that the key you enter as text must be a valid SSH RSA key, not
random ASCII text. Use [Ctrl]+D after entering it to save the text and re-enter the normal
command line mode.
Note you can generate a valid SSH RSA key on the switch first using the crypto key
generate host rsa command. View the SSH RSA key generated on the switch using the
show crypto hostkey rsa command. Copy and paste the displayed SSH RSA key after
entering the crypto key pubkey-chain userkey <username> command. Use [Ctrl]+D after
entering it to save it.
Parameters Description
Name of the user that the SSH server associates the key with. The
username must begin with a letter. Valid characters are all numbers,
letters, and the underscore, hyphen and full stop symbols.
Default: no default
Filename of a key saved in flash. Valid characters are any printable
character. You can add a key as a hexadecimal string directly into the
terminal if you do not specify a filename.
<1-65535>
The key ID number of the user’s key. Specify the key ID to delete a
key.