Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X Configuration Manual page 458

JUNOSe 11.1.x System Basics Configuration Guide
login
password
NOTE: To use an encrypted password or a secret, you must follow the procedure in
"Setting Basic Password Parameters" on page 418 to obtain the encrypted password
or secret. You cannot create your own encrypted password or secret; you must use
a system-generated password or secret.
428
Vty Line Authentication and Authorization
Use to specify the vty lines on which you want to enable the password.
You can set a single line or a range of lines. The range is 0–29.
Example
host1(config)#line vty 8 13
Use the no version to remove a vty line or a range of lines from your
configuration; users will not be able to run Telnet, SSH, or FTP to lines that you
remove. When you remove a vty line, the system removes all lines above that
line. For example, no line vty 6 causes the system to remove lines 6 through
29. You cannot remove lines 0 through 4.
See line.
Use to enable password checking at login.
The default setting is to enable a password.
Example
host1(config-line)#login
Use the no version to disable password checking and allow access without a
password.
See login.
Use to specify a password on a single line or a range of lines.
If you enable password checking but do not configure a password, the system
will not allow you to access virtual terminals.
Specify a password in plain text (unencrypted) or cipher text (encrypted). In
either case, the system stores the password as encrypted.
Use the following keywords to specify the type of password you will enter:
0 (zero) Unencrypted password
5 Secret
7 Encrypted password
Example 1 (unencrypted password)
host1(config-line)#password 0 mypassword