Mac OS X: Changing or resetting an account password
Learn how to change or reset an account password in Mac OS X, including the original administrator account password. You might need to do this, for example, if someone forgot their password. Tip: If you forget your login password and your home folder is protected by FileVault, see I forgot the password to my encrypted home folder.
Hi All,
I have one requirment..
I need to change my id to some sudo account in a server.. Actually our username/passwd will be stored in one gip file like below...
$cat .a.gz #It's hidden file
username
passwd
$
So I tried the below script to pass the password when i sudo to... (7 Replies)
Hi AIX Gurus,
I've purchased a second hand pSeries and don't know the root password. I've used the following instruction to reset root password and everything seems just fine. However, after it reboots, the system still says the root password I used is invalid. I really don't know why. I did... (12 Replies)
I have access to 15+ UNIX boxes at work, and I do not consistently log onto all of them over time. When I do try to access one I havent been on in awhile, my account is locked as the password has expired.
I need to request to the UNIX SA's that the password expiration is 90 days and that if it... (1 Reply)
I am able to get into single user mode as part of the process of resetting a lost root password, but once I am in that mode, my keyboard no longer works. Any ideas on what's wrong? Without the keyboard, I am stuck. (1 Reply)
SHADOW(5) File Formats Manual SHADOW(5)NAME
shadow - encrypted password file
DESCRIPTION
shadow contains the encrypted password information for user's accounts and optional the password aging information. Included is
Login name
Encrypted password
Days since Jan 1, 1970 that password was last changed
Days before password may be changed
Days after which password must be changed
Days before password is to expire that user is warned
Days after password expires that account is disabled
Days since Jan 1, 1970 that account is disabled
A reserved field
The password field must be filled. The encryped password consists of 13 to 24 characters from the 64 character alphabet a thru z, A thru
Z, 0 thru 9, . and /. Refer to crypt(3) for details on how this string is interpreted.
The date of the last password change is given as the number of days since Jan 1, 1970. The password may not be changed again until the
proper number of days have passed, and must be changed after the maximum number of days. If the minimum number of days required is greater
than the maximum number of day allowed, this password may not be changed by the user.
An account is considered to be inactive and is disabled if the password is not changed within the specified number of days after the pass-
word expires. An account will also be disabled on the specified day regardless of other password expiration information.
This information supercedes any password or password age information present in /etc/passwd.
This file must not be readable by regular users if password security is to be maintained.
FILES
/etc/passwd - user account information
/etc/shadow - encrypted user passwords
SEE ALSO chage(1), login(1), passwd(1), su(1), passwd(5), pwconv(8), pwunconv(8), sulogin(8)AUTHOR
Julianne Frances Haugh (jockgrrl@ix.netcom.com)
SHADOW(5)