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6-4

Configuring Secure Shell (SSH)

Terminology

■ SSH Server: A ProCurve switch with SSH enabled.

■ Key Pair: A pair of keys generated by the switch or an SSH client

application. Each pair includes a public key, that can be read by

anyone and a private key, that is held internally in the switch or by a

client.

■ PEM (Privacy Enhanced Mode): Refers to an ASCII-formatted

client public-key that has been encoded for portability and efficiency.

SSHv2 client public-keys are typically stored in the PEM format. See

figure 6-3 for an example of a PEM-encoded ASCII key.

■ Private Key: An internally generated key used in the authentication

process. A private key generated by the switch is not accessible for

viewing or copying. A private key generated by an SSH client applica-

tion is typically stored in a file on the client device and, together with

its public key counterpart, can be copied and stored on multiple

devices.

■ Public Key: An internally generated counterpart to a private key. A

device’s public key is used to authenticate the device to other devices.

■ Enable Level: Manager privileges on the switch.

■ Login Level: Operator privileges on the switch.

■ Local password or username: A Manager-level or Operator-level

password configured in the switch.

■ SSH Enabled: (1) A public/private key pair has been generated on

the switch (crypto key generate ssh [rsa]) and (2) SSH is enabled (ip

ssh). (You can generate a key pair without enabling SSH, but you

cannot enable SSH without first generating a key pair. See “2.

Generate the Switch’s Public and Private Key Pair” on page 6-10 and

“4. Enable SSH on the Switch and Anticipate SSH Client Contact

Behavior” on page 6-15.)

HP ProCurve 2510G Series User Manual

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