how to login without passwd from remote thin client

[abdelkader belahcene <abelahcene@gmail.com>]

good morning,

I disactivate the password,
 ( I remove x from /etc/passwd  like  geopp13::1038:1039 and
geopp13::15833:0:99999:7:::  in /etc/shadow)

 in order to log in without typing a password.

from the terminal  connected directly to the computer, it works fine,
 but  from a thin client ( via XDMCP)   it continues to ask for the password.

Is it possible to fix the problem.

I want a connection directly from thin client by typing just the login.

thaks for help
regards