APC AP7900 Manual Do Utilizador

– Do not enable both versions of SSH unless you require that both be 

activated at the same time. (Security protocols use extensive 
processing power.)

• Configure the port settings for Telnet and SSH.
• Select one or more data encryption algorithms for SSH version 1, SSH 

version 2, or both.

• In the Web interface, specify a host key file previously created with the 

APC Security Wizard and load it to the Rack PDU. 

• Display the fingerprint of the SSH host key for SSH versions 1 and 2. 

Most SSH clients display the fingerprint at the start of a session. 
Compare the fingerprint displayed by the client to the fingerprint that 
you recorded from the Web interface or control console of the Rack 
PDU

.

To use SSH, you must have an SSH client installed. Most 
Linux and other UNIX

® 

platforms include an SSH client as part 

of their installation, but Microsoft

 

Windows operating systems 

do not. SSH clients are available from various vendors.

From a command line interface, such as the command 
prompt on Windows operating systems, you can use FTP or 
Secure CoPy (SCP) to transfer the host key file. You must 
transfer the file to location 

 on the Rack PDU.

If you do not specify a host key file, the Switched Rack PDU 
generates an RSA host key of 768 bits, instead of the 1024-bit 
RSA host key that the Wizard creates.