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Full Discussion: using ssh change password remotely?
Top Forums UNIX for Advanced & Expert Users using ssh change password remotely? Post 302137695 by sysgate on Wednesday 26th of September 2007 10:33:55 AM
Old 09-26-2007
you can use expect's passmass script, or construct more simple one like :

Code:
#!/usr/bin/expect

set timeout -1
spawn ssh@host
expect "password:"
send "the-pass-goes-here\r"
sleep 1
spawn passwd [lindex $argv 0]
set password [lindex $argv 1]
expect "password:"
send "$password\r"
expect "password:"
send "$password\r"
expect eof
exit

This will, however, pose a security risk, by enclosing password in plain file.
I copied this example from http://floppsie.comp.glam.ac.uk/Glam...ripting/5.html, you will find great examples of Expect and scripting explanation.
 

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LEARN ABOUT SUSE

kpasswd

KPASSWD(1)						      General Commands Manual							KPASSWD(1)

NAME

       kpasswd - change a user's Kerberos password

SYNOPSIS

       kpasswd [principal]

DESCRIPTION

       The kpasswd command is used to change a Kerberos principal's password.  Kpasswd prompts for the current Kerberos password, which is used to
       obtain a changepw ticket from the KDC for the user's Kerberos realm.  If kpasswd successfully obtains the  changepw  ticket,  the  user	is
       prompted twice for the new password, and the password is changed.

       If the principal is governed by a policy that specifies the length and/or number of character classes required in the new password, the new
       password must conform to the policy.  (The five character classes are lower case, upper case, numbers, punctuation, and all  other  charac-
       ters.)

OPTIONS

       principal
	      change  the  password  for  the Kerberos principal principal.  Otherwise, kpasswd uses the principal name from an existing ccache if
	      there is one; if not, the principal is derived from the identity of the user invoking the kpasswd command.

PORTS

       kpasswd looks first for kpasswd_server = host:port in the [realms] section of the krb5.conf file under the current realm.  If that is miss-
       ing, kpasswd looks for the admin_server entry, but substitutes 464 for the port.

SEE ALSO

       kadmin(8), kadmind(8)

BUGS

       kpasswd may not work with multi-homed hosts running on the Solaris platform.

																	KPASSWD(1)
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