User guide
E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
3-7
U
SING
S
ECURE
S
HELL
2 (SSH2)
To display the status of Telnet, use the following command:
show management
You can choose to disable Telnet by using the following command:
disable telnet
To re-enable Telnet on the switch, at the console port use the following command at the
console port:
enable telnet
You must be logged in as an administrator to enable or disable Telnet.
For more information on Access Profiles, see Chapter 16.
U
SING
S
ECURE
S
HELL
2 (SSH2)
Secure Shell 2 (SSH2) is a feature of ExtremeWare that allows you to encrypt Telnet
session data between the switch and a network administrator using SSH2 client
software. The ExtremeWare SSH2 switch application is based on the Data Fellows
™
SSH2 server implementation. It is highly recommended that you use the F-Secure
SSH
client products from Data Fellows corporation. These applications are available for most
operating systems. For more information, refer to the Data Fellows website at:
http://www.datafellows.com.
SSH2 is compatible with the Data Fellows SSH2 client version 2.0.12 or above.
SSH2 is not compatible with SSH1.
E
NABLING
SSH2
Because SSH2 is currently under U.S. export restrictions, before enabling SSH2, you
must first obtain a security license from Extreme Networks. The procedure for obtaining
a security license key is described in Chapter 1.
Once you have obtained the key, enable security licensing using the following
command:
enable license security <license key>