Installation instructions:
(1) Save a copy of the old /sbin/lad as /sbin/lad.orig and replace /sbin/lad with this
 new version.
# cp  -p  /sbin/lad  /sbin/lad.orig
# cp  -p  lad_new  /sbin/lad

(2) Compare the permissions, the owner and the group of the ORIGINAL lad file with the
 NEW lad file.  Set the permissions, owner, and group as required.
# ls  -l  /sbin/lad.orig 
-rwx------      1    root     other     131224 Feb 24  2000 /sbin/lad.orig
^^^^^^^^^            ^^^^^     ^^^^^
permissions     owner   group

# ls -l /sbin/lad
??????????  1   ????   ?????    ?????????????????????  /sbin/lad 
compare with lad.orig and correct as required.

To set the permissions, owner, and group for the new version
# chmod  700  /sbin/lad  ( sets permissions )
# chown  root  /sbin/lad  (sets owner )
# chgrp  other  /sbin/lad  (sets group )