Cisco Headend Digital Broadband Delivery System
Chapter 4 Password Management
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Changing a User Password Expiration Period
Note: This topic applies to OS login accounts on the DNCS, the RNCS, and the
Application Server.
Application Server.
Use this procedure to change the password expiration period for an individual user
account.
account.
WARNING:
Do not enable password aging for any of the default users (root, dncs,
informix, dncsSSH, dncsftp, or easftp). The system (or components within the
system) will become unstable if any of these default user passwords expire.
Do not enable password aging for any of the default users (root, dncs,
informix, dncsSSH, dncsftp, or easftp). The system (or components within the
system) will become unstable if any of these default user passwords expire.
1 Open an xterm window on the system.
2 Log into the system as root:
2 Log into the system as root:
a At the prompt, type
su -
and press Enter.
b Type the root password and press Enter.
3 Type
passwd -r files -x [days] [username]
and press Enter.
Notes:
Type the number of days before a user password expired for [days].
Type the username for [username].
Do not type the brackets [ ] in the command.
Example: For user jonesx, type the following and press Enter:
passwd -r files -x 180 jonesx
4 Verify the expiration period by typing
passwd -s [username]
and press
Enter.
Example: Type
Example: Type
passwd -s jonesx
and press Enter. The system displays a
message similar to the following:
jonesx
PS
09/02/1
0
0
0
180
14
user
pw_status
date
MIN
MAX
WARN
The date (09/02/10) is the date the password was set by the user (jonesx).
The MIN (0) is the minimum number of days before a user is allowed to
change the password. We recommend that you leave this field blank.
change the password. We recommend that you leave this field blank.
The MAX (180) is the number of days after the date that the password is
valid.
valid.
The WARN (14) is the number of days before the password expires that a
warning banner is displayed.
warning banner is displayed.
5 Type
exit
and press Enter to close the xterm window.