topic /etc/shadow in Operating System - Linux

/etc/shadow

Ragni Singh — Mon, 21 Nov 2005 12:57:41 GMT

Hello, currently in my /etc/shadow, in the 2nd password field, I have a password :......:. I would like to replace that filed with just a *, ie, :*:.

How would I do that.

I need to put a star so it will force the user to use kebros.

Thanks and points will be assigned.

Re: /etc/shadow

Steven E. Protter — Mon, 21 Nov 2005 13:03:00 GMT

Shalom Sanjit,

very carefully:

send s/....../*/g /etc/passwd > /tmp/passwd.new

Edit it with vi, make sure its okay.

Take out root and admin users you don't want affected.

Shut down authentication.

You may need to put quotes around the asterisck.

SEP

Re: /etc/shadow

Ivan Ferreira — Mon, 21 Nov 2005 13:16:20 GMT

awk -F ":" -v OFS=":" '$2="*" { print $0 }' /etc/shadow > /etc/shadow.locked

Extrange question, and dangerous, you will be disabling root account.

User usermod -L username to lock an user account.