topic Re: uNABLE TO CHANGE USERPASSWD IN LINUX in Operating System - Linux

uNABLE TO CHANGE USERPASSWD IN LINUX

Vipin_1 — Sat, 11 May 2002 12:32:55 GMT

Hi,
I am unable to change the passwd of my account in a linux system while using my own accnt name and passwd but i can do so if i log in as root.
Can anybody help me?

thanks in advance,
Vipin.

Re: uNABLE TO CHANGE USERPASSWD IN LINUX

Kodjo Agbenu — Sat, 11 May 2002 21:02:22 GMT

Hello,

What Linux distribution are you using ? What error message do you receive when trying to change password ?

Without further information, I can just give you 2 tips :

=> Are you sure the password you try to set is conform to the default password choice rules ? Try 8-character password, with at least 2 numerical digits.

=> Are you sure a non-root user is allowed its own password ? Check /etc/shadow for password expiration rules. I don't know the exact syntax, but I can recommend you the manpage (man 5 shadow).

Good luck.

Kodjo

Re: uNABLE TO CHANGE USERPASSWD IN LINUX

U.SivaKumar_2 — Mon, 13 May 2002 03:24:23 GMT

hi,
check the permissions of /usr/bin/passwd executable
ll /usr/bin/passwd
the output should be
r-sr-xr-x root bin passwd
if the s is not there you will face the problem
which you have mentioned.
if it is not there do this
log in as root
#chmod +s /usr/bin/passwd
try again to log in as that user and change it's password.
regards,
U.SivaKumar

Re: uNABLE TO CHANGE USERPASSWD IN LINUX

Mark Fenton — Tue, 14 May 2002 01:50:27 GMT

Might need to look at your pam configuration also.

Should look something like:

$ cat /etc/pam.d/passwd
#%PAM-1.0
auth required /lib/security/pam_stack.so service=system-auth
account required /lib/security/pam_stack.so service=system-auth
password required /lib/security/pam_stack.so service=system-auth

I think that U. SivaKumar is probably on the right track though, as Root can execute passwd, but a normal user can't (have you tested whether it is only the one account vs all non-root accounts that experience this behavior?).

Best regards
Mark