Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 913
53-1002269-02
Configuring SSH2
27
To terminate an active connection, enter the following command
PowerConnect# kill ssh 1
Syntax: kill ssh <connection-id>
Configuring SSH2
The Dell implementation of SSH2 supports two kinds of user authentication:
• DSA challenge-response authentication, where a collection of public keys are stored on the
device. Only clients with a private key that corresponds to one of the stored public keys can
gain access to the device using SSH.
NOTE
SSH2 supports and validates DSA keys only. It does not support or validate SSH1 RSA keys.
• Password authentication, where users attempting to gain access to the device using an SSH
client are authenticated with passwords stored on the device or on a TACACS/TACACS+ or
RADIUS server
Both kinds of user authentication are enabled by default. You can configure the device to use one
or both of them.
Follow the steps given below to configure Secure Shell on a device.
1. If necessary, recreate the SSH keys
2. Generate a host DSA public and private key pair for the device
3. Configure DSA challenge-response authentication
4. Set optional parameters
You can also view information about active SSH connections on the device as well as terminate
them.
PowerConnect# show who
Console connections:
Established
you are connecting to this session
2 minutes 56 seconds in idle
SSH connections:
1. established, client ip address 2.2.2.1, user is Raymond
1 minutes 15 seconds in idle
2. established, client ip addres 2.2.2.2, user is Ron
2 minutes 25 seconds in idle
3. established, client ip address 2.2.2.1, user is David
1 minutes 8 seconds in idle
4. established, client ip address 2.2.2.1, user is Franchesca
2 minutes 32 seconds in idle
5. established, client ip address 2.2.2.3, user is Bob
5 minutes 17 seconds in idle