If the login is failing because you need a passwordless login by a script, and the script is failing - it is probably because the ADMCHG flag is still set.
Note: passwordless is not recommended. Use the following at your own (companies) risk!
In short, you need pwdadm -f NOCHECK username to disable password checks to be sure you can enter a NULL password, and you will need to enter it again so that the ADMCHG (admin change) flag is cleared after you set the NULL password.
Note: You need to be root to perform the grep -p username /etc/security/passwd command
This User Gave Thanks to MichaelFelt For This Post:
I'm tasked to change a user's password on multiple Linux systems (RH v3). I though copying the encrypted password from one Linux /etc/shadow file to another would work but I was wrong.
The long term solution is to establish an openLDAP Directory service, but for now I'm stuck with a manual... (1 Reply)
Hi all,
I need to change the password of any user in one go.
For example in Linux we have two options :-
(echo "username:password") | chpasswd
or
echo $PASS | passwd $USER --stdin
This changes the password without prompting. Actually, I need to make a script which adds a user and... (1 Reply)
Hi all,
I need to change the password of any user in one go.
For example in Linux we have two options :-
(echo "username:password") | chpasswd
or
echo $PASS | passwd $USER --stdin
This changes the password without prompting. Actually, I need to make a script which adds a user and... (5 Replies)
Hi All,
I have this userid:
# cat /etc/shadow | grep mysql
mysql:$1$O12345678901234/.:123456:0::14:::
Max password expiration is blank. What does it mean?
If it's like this below
mysql:$1$O12345678901234/.:123456:0:99999:14:::
then there's no expiration.
Thanks in advance for... (1 Reply)
Hi Friends.
I am new to scripting now i want to change the root password using the script with standard password.
which is the easy scripting to learn for the beginner, Thanks in advance. (2 Replies)
Hello All,
I have several solaris boxes running Solaris 8. When changing root passwords on them, all will simply ask for the new root password to change and of course to re-type the new password. One of the systems however asks for the existing root password before it will display the new password... (8 Replies)
Hello, I have a doubt about the accounts.
With a "grep" to file "shadow" get the accounts have no password:
The output is:
However, if I do a "su <bin, sys, etc>" request password.
What is the true state of accounts?
The file "shadow" are as follows:
I... (4 Replies)
When I am trying to change the password of my account. I could see the following error:
passwd: Changing password for ramu
Enter existing login password:
passwd: Sorry: less than 14 days since the last change.
Permission denied
Is anybody out there who can help me in changing my password? (4 Replies)
Hi,
I need the user to change the password giving the old password and the giving the new password... Is this can be done via the chage command. (1 Reply)
Discussion started by: gsiva
1 Replies
10. Forum Support Area for Unregistered Users & Account Problems
I was unable to login and so used the "Forgotten Password' process. I was sent a NEWLY-PROVIDED password and a link through which my password could be changed. The NEWLY-PROVIDED password allowed me to login.
Following the provided link I attempted to update my password to one of my own... (1 Reply)
Discussion started by: Rich Marton
1 Replies
LEARN ABOUT ULTRIX
passwd
passwd(1) General Commands Manual passwd(1)Name
passwd - create or change password
Syntax
passwd [-aefs] [name]
Description
The command lets you or the superuser change your password. When you enter the command, the program prompts you for the old password and
then for the new password. Next, the program asks you for the new password again, to verify that you have typed it correctly. Note that
the passwords are not displayed on the screen.
Your new password must meet the length requirements specified by the superuser. To review these requirements, refer to the file. (This is
a read-only file.)
If your system is running with increased security, you may have to choose a password from a list of randomly generated passwords, or you
may need authorization to change your password. At higher security levels, you may be prohibited from changing your password until its
minimum lifetime has expired, as specified in the Authorization Database.
If you are running the BIND/Hesiod service, your password will be updated automatically on the server.
Options-a Supply a list of randomly generated passwords. (See the Examples section.)
-e Use an extended protocol when communicating with a prompter program. As a result, the standard input and output (used by is sent to
this program.
-f Change the finger information, not the password. The finger program provides information about current ULTRIX users, such as login and
terminal name, idle time and office location.
-s Change the login shell of the password file, not the password entry.
Restrictions
If you use a hardcopy terminal, you must destroy all print outs of valid passwords.
Examples
The following example illustrates the -a option, which displays a list of randomly generated passwords and their suggested pronunciation
with hyphens. The hyphens delineate the syllables of the passwords:
passwd -a abcd
Changing password for abcd
Here are some suggested passwords:
ryegd ryeg-di
aswurku a-swurk-u
ryedok ryed-ok
teleccs tel-ec-cos
wahislas wa-hi-slas
Enter new password:
Diagnostics
Password must be at least 6 characters long, password unchanged
Your password does not meet the minimum length requirement specified in
Warning: Only the first 8 characters of the password are significant
Your password exceeds the maximum length requirement specified in
Permission denied
You do not have the privilege to change your password. The minimum lifetime has not expired.
Password is not different enough, unchanged
Your new password must be different from your old password.
Password must be different than logname, and not resemble previous password
Your new password must be different from your login name.
Verification failed, password unchanged
You misspelled the verification of your new password.
Files
Password file
Authorization data base directory
Authorization data base page
Data base service selection and security configuration file
Only the superuser and members of the group can access the and files.
See Alsochfn(1), chsh(1), finger(1), login(1), shexp(1), yppasswd(1yp), passwd(5yp), edauth(8), vipw(8)
Guide to System Environment Setup
Security Guide for Users
Security Guide for Administrators
"Password Security: A Case History", Supplementary Documents, Volume 3: System Manager
passwd(1)