presents the user with a login screen, using
zenity(1),
similar to the
xdm(1)
login prompt. instead of using the XDMCP protocol,
sdm-login
uses
ssh(1)
X11 Forwarding to encrypt the entire ssh session.
configuration options are defined in
/etc/sdm/sdm.config
and
/etc/sdm/sdm.config.$hostname
if autologin is set to yes, the login prompt will not be displayed, and
sdm-login
will attempt to log in as the same user as the hostname of the system, unless
the user variable is defined in one of the configuration files.