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User password reset


 
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Operating Systems Linux Red Hat User password reset
# 1  
RedHat User password reset

Hello -

I want to reset user password in multiple server via root ID. I have passwordless authentication for root between all the servers.

I an use loop to reset the password. I am using below command in loop

echo mypassword | passwd username --stdin

However, if anyone sees history - he can see the password ?

Anyway - I can set a encrypted password ?So, that noone can see it in history
# 2  
You could always delete the history file or munge the instance of the password to something else (sed is your friend)
# 3  
Try this instead so the password is not logged to the history.

Code:
passwd --stdin username</tmp/secret

# 4  
Quote:
Originally Posted by frank_rizzo
Try this instead so the password is not logged to the history.

Code:
passwd --stdin username</tmp/secret

I assume this is obvious, but if you do it this way, be sure that the permissions on /tmp/secret only allow read and write access to the file's owner and be sure that the file's owner is root.
# 5  
Good point Don. A better location would be one that only root can access like /root assuming the permissions are restrictive 700. Feeding encrypted passwords to a command like chpasswd(8) would also be better. That way there are no plain text passwords on the target servers.
# 6  
Quote:
Originally Posted by saurabh84g
Hello -

I want to reset user password in multiple server via root ID. I have passwordless authentication for root between all the servers.

I an use loop to reset the password. I am using below command in loop

echo mypassword | passwd username --stdin

However, if anyone sees history - he can see the password ?

Anyway - I can set a encrypted password ?So, that noone can see it in history
Before you leave the session you can tell Bash to not save the history for that session:
Code:
unset HISTFILE && exit


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