tacacs-server key – configures a key for communication between a TACACS+ server and 
client.
username – establishes an authentication system based on user names.
password-attributes
Configure the password attributes (strong password).
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
password-attributes [min-length number] [max-retry number] 
[character-restriction [upper number] [lower number] [numeric 
number] [special-char number]]
To return to the default, use the no password-attributes [min-length number] 
[max-retry number] [character-restriction [upper number] [lower 
number] [numeric number] [special-char number]] command.
Parameters
min-length 
number
(OPTIONAL) Enter the keywords min-length followed by the 
number of characters. The range is 0 to 32 characters.
max-retry 
number
(OPTIONAL) Enter the keywords max-retry followed by the 
number of maximum password retries. The range is 0 to 16.
character-
restriction
(OPTIONAL) Enter the keywords character-restriction to 
indicate a character restriction for the password.
upper 
number
(OPTIONAL) Enter the keyword upper followed the upper number. 
The range is 0 to 31.
lower 
number
(OPTIONAL) Enter the keyword lower followed the lower number. 
The range is 0 to 31.
numeric 
number
(OPTIONAL) Enter the keyword numeric followed the numeric 
number. The range is 0 to 31.
special-char 
number
(OPTIONAL) Enter the keywords special-char followed the 
number of special characters permitted. The range is 0 to 31.
Defaults none
Command Modes CONFIGURATION
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
Version 6.3.1.0 Introduced on the E-Series.
Related 
Commands
password – specifies a password for users on terminal lines.
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