Users Guide
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.1.1.0 Introduced on the E-Series.
Usage Information
This command species the le used for the host-based authentication. The creates/ le overwrites the 
flash://ADMIN_DIR/ssh/knownhosts le and deletes the user-specied le. Even though this command is 
a global conguration command, it does not appear in the running conguration because you only need to run this 
command once.
The le contains the OpenSSH-compatible public keys of the host for which host-based authentication is allowed. 
An example known host le format:
poclab4,123.12.1.123 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAox/ 
QQp8xYhzOxn07yh4VGPAoUfgKoieTHO9G4sNV+ui+DWEc3cgYAcU5Lai1MU2ODrzhCwyDNp05tKBU3t 
ReG1o8AxLi6+S4hyEMqHzkzBFNVqHzpQc
+Rs4p2urzV0F4pRKnaXdHf3Lk4D460HZRhhVrxqeNxPDpEn WIMPJi0ds= ashwani@poclab4
NOTE: For rhostfile and pub-key-file, the administrator must FTP the le to the 
chassis.
Example
Dell# conf
Dell(conf)# ip ssh pub-key-file flash://knownhosts
Dell(conf)#
Related Commands
• show ip ssh client-pub-keys — displays the client-public keys used for the host-based authentication.
ip ssh rhostsle
Specify the rhost le used for host-based authorization.
Syntax
ip ssh rhostsfile {WORD}
Parameters
WORD Enter the rhost le name for the host-based authentication.
Defaults none
Command Modes CONFIGURATION
Security 1413










