Passwords used to secure access, Setting a telnet password, Suppressing telnet connection rejection messages – Brocade Communications Systems Brocade ICX 6650 6650 User Manual
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Brocade ICX 6650 Security Configuration Guide
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Passwords used to secure access
When TFTP is disabled, you are prohibited from using the copy tftp command to copy files to the
system flash. If you enter this command while TFTP is disabled, the system will reject the command
and display an error message.
To re-enable TFTP client access once it is disabled, enter the following command.
Brocade(config)# no tftp disable
Syntax: [no] tftp disable
Passwords used to secure access
Passwords can be used to secure the following access methods:
•
Telnet access can be secured by setting a Telnet password. Refer to
•
Access to the Privileged EXEC and CONFIG levels of the CLI can be secured by setting
passwords for management privilege levels. Refer to
“Setting passwords for management
This section also provides procedures for enhancing management privilege levels, recovering from
a lost password, and disabling password encryption.
NOTE
You also can configure up to 16 user accounts consisting of a user name and password, and assign
each user account a management privilege level. Refer to
Setting a Telnet password
By default, the device does not require a user name or password when you log in to the CLI using
Telnet. You can assign a password for Telnet access using one of the following methods.
Set the password “letmein” for Telnet access to the CLI using the following command at the global
CONFIG level.
Brocade(config)# enable telnet password letmein
Syntax: [no] enable telnet password string
Suppressing Telnet connection rejection messages
By default, if a Brocade device denies Telnet management access to the device, the software
sends a message to the denied Telnet client. You can optionally suppress the rejection message.
When you enable the option, a denied Telnet client does not receive a message from the Brocade
device. Instead, the denied client simply does not gain access.
To suppress the connection rejection message, use the following CLI method.
To suppress the connection rejection message sent by the device to a denied Telnet client, enter
the following command at the global CONFIG level of the CLI.
Brocade(config)# telnet server suppress-reject-message