Reference Guide
Example
FTOS#conf
FTOS(conf)# ip ssh rhostsfile flash://shosts
FTOS(conf)#
Usage 
Information
This command specifies the rhost file used for host-based authentication. This creates/ file 
overwrites the flash:/ADMIN_DIR/ssh/shosts file and deletes the user-specified file. 
Even though this command is a global configuration command, it does not appear in the 
running configuration because you only need to run this command once.
This file contains hostnames and usernames, for which hosts and users, rhost-authentication 
can be allowed.
NOTE: For rhostfile and pub-key-file, the administrator must FTP the file to the 
switch.
ip ssh rsa-authentication (Config)
Enable RSA authentication for the SSHv2 server.
S4820T
Syntax
ip ssh rsa-authentication enable
To disable RSA authentication, use the no ip ssh rsa-authentication enable 
command.
Parameters
enable Enter the keyword enable to enable RSA authentication for the 
SSHv2 server.
Defaults Disabled.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the 
relevant 
FTOS Command Line Reference Guide
.
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.0
Introduced on the E-Series.
Usage 
Information
Enabling RSA authentication allows the user to log in without being prompted for a password. 
In addition, the OpenSSH compatible SSHv2 RSA public key must be added to the list of 
authorized keys (ip ssh rsa-authentication my-authorized-keys 
device://filename command).
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