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USER’S GUIDE
Switched Rack PDU
80
If you are using SSH version 2, expect a noticeable delay
when logging on to the control console of the Rack PDU.
Although the delay is not long, it can be mistaken for a
problem because there is no explanatory message.
Option Description
Telnet/SSH Network Configuration
Access Enables or disables the access method selected in Protocol Mode.
N
OTE: Enabling SSH automatically disables Telnet. To enable SSH,
change the setting and then click Next>> in the Web interface or choose
Accept Changes in the control console. You must then agree to the
license agreement that is displayed.
Protocol
Mode
Choose one of the following:
• Telnet: User names, passwords, and data are transmitted without
encryption.
• Secure SHell (SSH), version 1: User names, passwords, and data are
transmitted in encrypted form. There is little or no delay when you are
logging on.
• Secure SHell (SSH), version 2: User names, passwords, and data are
transmitted in encrypted form, but with somewhat more protection than
version 1 from attempts to intercept, forge, or alter data during data
transmission. There is a noticeable delay when you are logging on to
the Rack PDU.
• Secure SHell (SSH), versions 1 and 2: Do not enable both versions of
SSH unless you require that both be activated at the same time.
(Security protocols use extensive processing power.)