Re: [PATCH] login-utils: import environment from user manager on systemd systems

[Linda Walsh <lkml@tlinx.org>]

Ray Strode wrote:
> From: Ray Strode <rstrode@redhat.com>
>
> If the user is using a systemd system, then its useful to grab the
> environment from the systemd user manager process.
>
> This allows administrators to initialize the environment of the sessions
> via systemd configuration.
>   
---
    Isn't pam_env supposed to allow setting vars in setting up
a user's first login session?

(from /etc/security/pam_env.conf)
# This is the configuration file for pam_env, a PAM module to load in
# a configurable list of environment variables for an _authorized_ session.
#
# The original idea for this came from Andrew G. Morgan ...
#<quote>
#   Mmm. Perhaps you might like to write a pam_env module that reads a
#   default environment from a file? I can see that as REALLY
#   useful... Note it would be an "auth" module that returns PAM_IGNORE
#   for the auth part and sets the environment returning PAM_SUCCESS in
#   the setcred function...
#</quote>
#
# What I wanted was the REMOTEHOST variable set...

As an aside, I use that to set my DISPLAY to the remote host on 1st login.

It's only available when a user is establishing a session from a
remote system.   Calling it at other times won't have remotehost set.
(basically values of REMOTEHOST & DISPLAY should be kept intact much like
the TERM or LANG settigns.