changing password in linux

[manoj.linux]

Hi,

I want to know how to change the password for a user on all linux servers who has same password on all servers,

Example
one user say abc this user is created on all linux server and i want to change password for this user on all server?

Wheather it is possible?

[scm]

Simplest, though insecure, way would be to extract the encrypted password string from the changed /etc/shadow file and then ssh to the other servers and hack it into their /etc/shadows. Assuming you're using the same distro and encryption mechanism on all servers, of course.

Or use NIS and have a single password for all servers.