Configuring the telnet interface, To disable telnet – HP Brocade 4Gb SAN Switch for HP BladeSystem p-Class User Manual
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Configuring standard security features
Fabric OS v4.4.0 and later supports SSH protocol v2.0 (ssh2). For more information on SSH, see the
SSH IETF web site:
Refer to SSH, The Secure Shell; The Definitive Guide, By Daniel J. Barrett and Richard Silverman;
Published by O’Reilly.
Fabric OS v4.4.0 comes with the SSH server preinstalled; however, you must select and install the SSH
client. For information on installing and configuring the F-Secure SSH client, see the web site:
Configuring the telnet interface
Telnet is enabled by default. To prevent users from passing clear text passwords over the network when
they connect to the switch, you can disable the telnet interface.
NOTE:
Before disabling the telnet interface, make sure that you have installed SSH, or some other
secure means of establishing a connection with the switch.
To disable telnet:
1.
Connect to the switch and log in as admin.
HP recommends that you connect through some other means than telnet; for example, through SSH.
2.
Enter the following command:
configure telnetd
3.
In response to the System Services prompt, enter
y
.
4.
In response to the telnetd prompt, enter
off
.
The telnet interface is disabled. If you entered the command during a standard telnet session, the
session terminates.
Example:
switch:admin> configure telnetd
Not all options will be available on an enabled switch.
To disable the switch, use the “switchDisable” command.
Configure...
ssl attributes (yes, y, no, n): [no]
http attributes (yes, y, no, n): [no]
snmp attributes (yes, y, no, n): [no]
rpcd attributes (yes, y, no, n): [no]
cfgload attributes (yes, y, no, n): [no]
[31454]: Read 1 license entries for generation 1.
[31454]: Read 1 license records.
System services (yes, y, no, n): [no] y
rstatd (on, off): [off]
rusersd (on, off): [off]
telnetd (on, off): [on] off