Dell PowerSwitch S5212F-ON EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 1159

Parameters Default Command Mode Usage Information Example ● username - Enter an OS10 user name who logs in on a remote client. This value is the user name configured using the username password role command. ● filepath - Enter the absolute path name of the local file containing the public keys used by remote devices to log in to the OS10 switch. The default SSH public keys are an RSA key generated using 2048 bits, an ECDSA key with 256 bits, and an Ed2559 key with 256 bits. CONFIGURATION Before you use the command, locate the public keys on a remote client in the ~/.ssh/id_rsa.pub file. Create a text file and copy the SSH public keys on the remote client into the file. Enter each public key on a separate line. Download the file to your home OS10 directory. NOTE: Entering the command when an SSH key file is not present has no effect and results in a silent failure. SSH password-less login is not enabled. Supported on the MX9116n and MX5108n switches in Full Switch mode starting in release 10.4.1.0. Also supported in SmartFabric mode starting in release 10.5.0.1. The no version of the command removes the SSH password-less configuration for the specified user name. OS10(config)# username user10 sshkey filename /test_file.txt OS10(config)# do show running-configuration users username admin password $6$q9QBeYjZ $jfxzVqGhkxX3smxJSH9DDz7/3OJc6m5wjF8nnLD 7/VKx8SloIhp4NoGZs0I/UNwh8WVuxwfd9q4pWIgNs5BKH. role sysadmin username user10 password $6$rounds=656000$G10VRFTJB291ekwo $iTGf0zd4bTUcBBpI Vsbr6oStnUZMydN5lDs4WE6G3XHEtWbcKrGTeAo1wEF0cenEgRRPzi3SMmYyzAHCCC8wS0 role sysadmin username user10 sshkey filename /test_file.txt Supported Releases 10.4.1.0 or later crypto ssh-key generate Regenerates the public keys used in SSH authentication. Syntax Parameters crypto ssh-key generate {rsa bits | ecdsa bits | ed25519} ● rsa bits - Regenerates the RSA key with the specified bit size: 2048, 3072, or 4096; default 2048. ● ecdsa bits - Regenerates the ECDSA key with the specified bit size: 256, 384, or 521; default 256. ● ed25519 - Regenerates the Ed25519 key with the default bit size. Default The SSH server uses default public key lengths for client authentication: ● RSA key: 2048 bits ● ECDSA key : 256 bits ● Ed25519 key: 256 bits Command Mode Usage Information EXEC If necessary, you can regenerate the public keys used by the SSH server with a customized bit size. You cannot change the default size of the Ed25519 key. The crypto ssh-key generate command is available only to the sysadmin and secadmin roles. Security 1159